diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 368286df..5aae1bc8 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -150,34 +150,26 @@ docs/ # Documentation
## Trace Processing Architecture
-agentevals converts OTel traces from agent frameworks into a common `Invocation` format for evaluation. If you're adding support for a new framework or changing how we extract data from spans, this section will help you find your way around.
-
-### Key Modules
+Telemetry flows through four layers. Each is plain Python with no ADK dependency except the bridge.
| Module | What it does |
|--------|--------------|
-| `trace_attrs.py` | Single source of truth for OTel attribute key constants (`OTEL_GENAI_*` for standard semconv, `ADK_*` for Google ADK) |
-| `extraction.py` | Shared extraction functions, span classifiers, and the `TraceFormatExtractor` protocol with `AdkExtractor` / `GenAIExtractor` |
-| `converter.py` | Batch conversion orchestration, turns ADK traces into `Invocation` objects |
-| `genai_converter.py` | Batch conversion for GenAI semconv traces (single-turn and multi-turn) |
-| `streaming/incremental_processor.py` | Real-time span processing for the live UI, uses the same shared extraction functions |
-| `utils/log_enrichment.py` | Reconstructs `gen_ai.input/output.messages` from OTel log records into span attributes |
-
-### Adding a new attribute constant
-
-Add it to `trace_attrs.py` and import from there. Don't use hardcoded attribute key strings elsewhere.
-
-### Adding or modifying extraction logic
-
-The extraction functions in `extraction.py` accept flat `dict[str, Any]` attribute maps. This means they work with both `Span`-based batch converters (via `span.tags`) and the raw OTLP dict incremental processor. When extracting data, check ADK-specific attributes first (they contain richer data), then fall back to GenAI semconv.
-
-### Supporting a new trace format
-
-1. Add a new `TraceFormatExtractor` implementation in `extraction.py` with `detect()`, `find_invocation_spans()`, `find_llm_spans_in()`, `find_tool_spans_in()`, and `classify_span()`
-2. Register it in the `_EXTRACTORS` list. Order matters here: more specific formats should come first so they get detected before the generic GenAI fallback
-3. If the format introduces new attribute keys, add them to `trace_attrs.py`
-4. If you need conversion logic that the shared extraction functions don't cover, add a dedicated converter module (see `genai_converter.py` for an example)
-5. Add tests to `tests/test_extraction.py` for detection and span classification
+| `otel/model.py`, `otel/decode.py`, `otel/encode.py` | Lossless OTLP envelopes (spans, logs, resources, scopes) decoded from protobuf, JSON or Jaeger files, and encoded back |
+| `genai/overlay.py`, `genai/semconv.py` | Read only view of a span in current GenAI conventions, with fallbacks for deprecated keys, events, ADK and OpenLLMetry attributes |
+| `genai/extract.py`, `genai/model.py` | Turns, logical model calls and tool calls extracted from traces (`extract_conversation`) |
+| `genai/matching.py`, `genai/grouping.py` | Grouping traces into conversations and matching them to eval cases |
+| `adk_bridge.py` | The only place that converts to ADK types (eval sets, built in metrics) |
+| `otel/store.py`, `streaming/manager.py` | Live sessions: routing mechanics, limits, completion, recompute and UI updates |
+| `genai/routing.py` | What the live store routes on: session keys, which traces and logs to keep, agentevals' own records |
+| `evaluation_events.py` | Evaluation results as `gen_ai.evaluation.result` events |
+
+Imports point down only: `otel/` imports nothing from `genai/`, and neither imports the runner, the evaluators or `evaluation_events.py`.
+
+### Supporting a new producer
+
+1. Record a few real traces and add them as fixtures with the turns you expect.
+2. If the producer uses standard GenAI attributes, it should already work. Check with `agentevals run`.
+3. If it uses its own attribute names, add a fallback in `genai/overlay.py`. Never change span classification for one producer; it keys on `gen_ai.operation.name`.
### Adding an SDK example
diff --git a/README.md b/README.md
index 6dbb98a7..413bf346 100644
--- a/README.md
+++ b/README.md
@@ -6,11 +6,11 @@
-Ship Agents Reliably
+Agent evaluation, OpenTelemetry native
-Benchmark your agents before they hit production.
-agentevals scores performance and inference quality from OpenTelemetry traces. No re-runs, no guesswork.
+Send OTLP. Score what your agent did. Get the results back as OpenTelemetry events.
+No SDK, no reruns, no platform to host.
@@ -26,75 +26,48 @@ agentevals scores performance and inference quality from OpenTelemetry traces. N
- Install · Quick Start · Releases · Contributing · Discord
+ Install · Quick start · Docs · Contributing · Discord
---
## What is agentevals?
-agentevals is a framework-agnostic evaluation solution that scores AI agent behavior directly from [OpenTelemetry](https://opentelemetry.io/) traces. Record your agent's actions once, then evaluate as many times as you want without re-executing or burning extra tokens.
+agentevals scores AI agent behavior from the OpenTelemetry telemetry your agent already produces. It is an OTLP destination like any tracing backend: point an exporter or a Collector at it, and it turns GenAI spans and log events into turns, tool calls, tokens and answers, then scores them against a golden eval set. Results can flow back into your pipeline as `gen_ai.evaluation.result` events.
-It works with any OTel-instrumented framework (LangChain, Strands, Google ADK, OpenAI Agents SDK, and others), supports Jaeger JSON and native OTLP trace formats, and ships with built-in evaluators, custom evaluator support, and LLM-based judges.
+* **Standard telemetry in.** OTLP over HTTP and gRPC, live or from files. Any producer that follows the [OpenTelemetry GenAI semantic conventions](https://opentelemetry.io/docs/specs/semconv/gen-ai/) works: Google ADK, Strands, LangChain, OpenAI Agents SDK, Pydantic AI and the official OpenTelemetry GenAI instrumentations.
+* **Standard events out.** One `gen_ai.evaluation.result` log event per metric and turn, parented to the evaluated span, ready for your backend to query, alert on or turn into metrics.
+* **No reruns.** Scoring reads recorded telemetry, so an evaluation costs no agent tokens and can be repeated on the same run.
+* **Gates and judges.** Tool trajectory and response matching for deterministic pass/fail, LLM judges and rubrics for quality, custom evaluators in any language.
+* **Local first.** One `pip install`. CLI for CI, web UI for inspection, MCP server for assistants, Helm chart for Kubernetes.
-- **No re-execution**: score agents from existing traces without replaying expensive LLM calls
-- **Golden eval sets**: compare actual behavior against defined expected behaviors for deterministic pass/fail gating
-- **Custom evaluators**: write scoring logic in Python, JavaScript, or any language
-- **CI/CD ready**: gate deployments on quality thresholds directly in your pipeline
-- **Local-first**: no cloud dependency required; everything runs on your machine
-- **Multiple interfaces**: CLI for scripting and CI, Web UI for visual inspection, MCP server for conversational evaluation, Helm chart for Kubernetes environments
-
-> [!IMPORTANT]
-> This project is under active development. Expect breaking changes.
-
-## Contents
-
-- [Installation](#installation)
-- [Quick Start](#quick-start)
-- [Use-cases and Integrations](#use-cases-and-integrations)
-- [CLI](#cli)
-- [Custom Evaluators](#custom-evaluators)
-- [Web UI](#web-ui)
-- [Deployment](#deployment)
-- [MCP Server](#mcp-server)
-- [Claude Code Skills](#claude-code-skills)
-- [Examples](#examples)
-- [Docs](#docs)
-- [Development](#development)
-- [FAQ](#faq)
-
-## Installation
-
-**From PyPI** (recommended): the published package includes the **CLI**, **REST API**, and **embedded web UI**.
-
-```bash
-pip install agentevals-cli
+```mermaid
+flowchart LR
+ A[Agent with OTel instrumentation] -->|OTLP| C[OpenTelemetry Collector]
+ C --> B[Your tracing backend]
+ C --> E[agentevals]
+ E -->|gen_ai.evaluation.result| C
```
-Optional extras:
-
-```bash
-pip install "agentevals-cli[live]" # MCP server support
-```
+The Collector is optional. An agent can export straight to agentevals.
-**GitHub [releases](../../releases)** also ship **core** wheels (CLI and API only) and **bundle** wheels (with the embedded UI) if you need a specific version or offline `pip install ./path/to.whl`.
+> [!IMPORTANT]
+> This project is under active development. Expect breaking changes.
-**From source** with `uv` or Nix:
+## Install
```bash
-uv sync
-# or: nix develop .
+pip install agentevals-cli # CLI, REST API, OTLP receivers, embedded web UI
+pip install "agentevals-cli[live]" # adds the MCP server
```
-See [DEVELOPMENT.md](DEVELOPMENT.md) for build instructions.
+From a clone: `uv sync`, then use `uv run agentevals`. See [DEVELOPMENT.md](DEVELOPMENT.md).
-## Quick Start
+## Quick start
-Examples use `agentevals` on your PATH after `pip install agentevals-cli`. If you are working from a clone of this repo, use `uv run agentevals` instead.
+### Score recorded traces
-The `samples/` directory includes real traces from a Kubernetes Helm agent and matching eval sets that define expected behavior (which tools should be called, what the response should contain).
-
-**Score a trace against an eval set:**
+`samples/` holds traces from a Kubernetes Helm agent and eval sets that describe the expected behavior.
```bash
agentevals run samples/helm.json \
@@ -102,17 +75,17 @@ agentevals run samples/helm.json \
-m tool_trajectory_avg_score
```
-The agent was asked to list Helm releases. The eval set expects a call to `helm_list_releases`. It matches:
+The eval set expects a call to `helm_list_releases`, and the trace has one:
```
Trace: 3e289017fe03ffd7c4145316d2eb3d0d
Invocations: 1
Metric Score Status Per-Invocation Time
------ ------------------------- ------- -------- ---------------- ------
-[PASS] tool_trajectory_avg_score 1 PASSED 1 0ms
+[PASS] tool_trajectory_avg_score 1 PASSED 1 5ms
```
-**Catch a mismatch.** Run a different trace against the same eval set:
+A trace from a session that never called the tool fails, and the output says why:
```bash
agentevals run samples/k8s.json \
@@ -120,10 +93,8 @@ agentevals run samples/k8s.json \
-m tool_trajectory_avg_score
```
-This trace is from a different agent session that never called the expected tool. The evaluation fails:
-
```
-[FAIL] tool_trajectory_avg_score 0 FAILED 0 0ms
+[FAIL] tool_trajectory_avg_score 0 FAILED 0 1ms
Invocation 1 trajectory mismatch:
Expected:
- helm_list_releases({})
@@ -131,36 +102,9 @@ This trace is from a different agent session that never called the expected tool
(none)
```
-**Evaluate multiple dimensions at once:**
+Add `-m response_match_score` to check the final answer as well, `--output json` for machine readable results, and `--emit-otel` to send the results into your pipeline.
-```bash
-agentevals run samples/helm_3.json \
- --eval-set samples/evalset_helm_3_2026-02-23.json \
- -m tool_trajectory_avg_score \
- -m response_match_score
-```
-
-`tool_trajectory_avg_score` checks whether the right tools were called. `response_match_score` checks whether the agent's final answer matches the expected response.
-
-**Explore visually.** Launch the Web UI and upload traces from the browser:
-
-```bash
-agentevals serve
-# opens http://localhost:8001
-```
-
-You can also point any OTel-instrumented agent directly at the built-in receiver (`OTEL_EXPORTER_OTLP_ENDPOINT=http://localhost:4318`). The UI streams tool calls, inputs, and outputs live as your agent runs. For production setups, the same receiver slots into a Kubernetes OTel Collector pipeline as an exporter destination. See [Use-cases and Integrations](#use-cases-and-integrations) and the [Kubernetes example](examples/kubernetes/README.md) for walkthroughs.
-
-**Next steps:**
-
-- `agentevals evaluator list` to see all built-in and community evaluators
-- [Custom Evaluators](#custom-evaluators) to write your own scoring logic
-
-## Use-cases and Integrations
-
-### Zero-Code (Recommended)
-
-Point any OTel-instrumented agent at the agentevals receiver. No SDK, no code changes:
+### Evaluate a live agent
```bash
# Terminal 1
@@ -168,24 +112,31 @@ agentevals serve --dev
# Terminal 2
export OTEL_EXPORTER_OTLP_ENDPOINT=http://localhost:4318
-export OTEL_RESOURCE_ATTRIBUTES="agentevals.session_name=my-agent"
+export OTEL_RESOURCE_ATTRIBUTES="agentevals.session_name=my-agent,service.instance.id=$(uuidgen)"
python your_agent.py
```
-For OTLP/gRPC exporters, use:
+Sessions appear in the UI at `http://localhost:8001` as the agent runs, with tool calls, inputs and outputs, and can be evaluated there. For gRPC exporters use port 4317 with `OTEL_EXPORTER_OTLP_PROTOCOL=grpc`.
+
+Sessions are grouped by `agentevals.session_name`, then `gen_ai.conversation.id`, then `session.id`. `service.instance.id` tells a rerun from the next turn. Set `agentevals.eval_set_id` to associate a session with an eval set.
+
+Per producer settings, such as turning on message content capture, are in [OpenTelemetry Compatibility](docs/otel-compatibility.md). Working setups for each framework are in [examples/zero-code-examples/](examples/zero-code-examples/).
+
+### Send results back to your pipeline
```bash
-export OTEL_EXPORTER_OTLP_ENDPOINT=localhost:4317
-export OTEL_EXPORTER_OTLP_PROTOCOL=grpc
+agentevals run trace.json --eval-set eval_set.json -m tool_trajectory_avg_score --emit-otel
```
-Traces stream to the UI in real-time. Works with LangChain, Strands, Google ADK, OpenAI Agents SDK, or any framework that emits OTel spans (`http/protobuf`, `http/json`, and OTLP/gRPC supported; gzip request compression supported). Sessions are auto-created and grouped by `agentevals.session_name`. Set `agentevals.eval_set_id` to associate traces with an eval set.
+The exporter is configured by the standard `OTEL_EXPORTER_OTLP_*` variables. `agentevals serve --emit-otel` does the same for evaluations started from the UI and the API. Collector recipes for forwarding telemetry to agentevals and for routing the results are in [OpenTelemetry Pipelines](docs/opentelemetry-pipeline.md).
+
+## What agentevals reads
-See [examples/zero-code-examples/](examples/zero-code-examples/) for working examples.
+Turns come from `invoke_agent` spans, tool calls from `execute_tool` spans, tokens and the model from model call spans, and messages from `gen_ai.input.messages` and `gen_ai.output.messages` as span attributes, span events or log events. Google ADK's `gcp.vertex.agent.*` attributes are read as well. Files can be OTLP JSON, Jaeger JSON or Collector `file` exporter output. Details, including what is ignored and the receiver limits: [OpenTelemetry Compatibility](docs/otel-compatibility.md).
-### AgentEvals SDK
+## SDK (optional)
-For programmatic session lifecycle and decorator API:
+The Python SDK wraps the OTel boilerplate in a session when you want the session name, eval set and run id set from code:
```python
from agentevals import AgentEvals
@@ -196,39 +147,16 @@ with app.session(eval_set_id="my-eval"):
agent.invoke("Roll a 20-sided die for me")
```
-Requires `pip install "agentevals-cli[streaming]"`. See [examples/sdk_example/](examples/sdk_example/) for framework-specific patterns.
+Spans and GenAI log events produced inside the session go to agentevals over OTLP. Your own exporters are untouched, and the SDK never reads `OTEL_EXPORTER_OTLP_*`, so credentials for another backend are not sent to agentevals. Endpoint: `endpoint=` or `AGENTEVALS_OTLP_ENDPOINT`, default `http://localhost:4318`. See [examples/sdk_example/](examples/sdk_example/).
-## CLI
+## Custom evaluators
-```bash
-# Multiple traces, JSON output
-agentevals run samples/helm.json samples/k8s.json \
- --eval-set samples/eval_set_helm.json \
- -m tool_trajectory_avg_score \
- --output json
-
-# List available evaluators
-agentevals evaluator list
-
-# Flexible trajectory matching (EXACT | IN_ORDER | ANY_ORDER)
-agentevals run trace.json \
- --eval-set eval_set.json \
- -m tool_trajectory_avg_score \
- --trajectory-match-type IN_ORDER
-```
-
-Run `agentevals run --help` for all options.
-
-## Custom Evaluators
-
-Write scoring logic in Python, JavaScript, or any language. Scaffold a new evaluator with:
+An evaluator is any program that reads JSON from stdin and writes a score to stdout. Scaffold one and reference it next to the built in metrics:
```bash
agentevals evaluator init my_evaluator
```
-Reference it alongside built-in metrics in an eval config:
-
```yaml
evaluators:
- name: tool_trajectory_avg_score
@@ -239,25 +167,17 @@ evaluators:
threshold: 0.7
```
-Evaluators with a `requirements.txt` get automatic virtual environment management. You can also use `type: remote` for community evaluators from GitHub.
+`type: remote` pulls community evaluators from GitHub. Protocol, SDK helpers and runtimes: [Custom Evaluators](docs/custom-evaluators.md).
-See the [Custom Evaluators guide](docs/custom-evaluators.md) for the full protocol reference, SDK helpers, and how to contribute evaluators.
+## Run it
-## Web UI
+**CLI.** `agentevals run --help` lists everything: multiple traces, `--group-by trace|conversation`, `--trajectory-match-type`, judge model selection and eval config files. `agentevals evaluator list` shows built in and community evaluators.
-```bash
-agentevals serve # bundled UI on http://localhost:8001
-```
-
-Upload traces and eval sets, select evaluators, and view results with interactive span trees. Live-streamed traces appear in the "Local Dev" tab, grouped by session ID. With the Postgres backend enabled, the "Run History" tab persists every evaluation and lets you group and trend runs by eval set or agent over time; see the [Run History guide](docs/run-history.md). For running from source, see [DEVELOPMENT.md](DEVELOPMENT.md).
-
-Interactive API docs are available at `/docs` (Swagger) and `/redoc` while the server is running. The OTLP receiver on port 4318 serves its own docs at `http://localhost:4318/docs`.
+**Web UI.** `agentevals serve` on `http://localhost:8001`. Upload traces and eval sets, pick evaluators, inspect span trees, watch live sessions. API docs at `/docs`.
-## Deployment
+**MCP server.** `agentevals mcp` exposes `list_metrics`, `evaluate_traces`, `list_sessions`, `summarize_session` and `evaluate_sessions` to MCP clients. A `.mcp.json` at the repo root lets Claude Code pick it up, and the `/eval` and `/inspect` skills in `.claude/skills/` build on it.
-### Docker
-
-A `Dockerfile` is included at the project root. The image bundles the API, web UI, and OTLP receiver:
+**Docker.**
```bash
docker build -t agentevals .
@@ -271,171 +191,77 @@ docker run -p 8001:8001 -p 4317:4317 -p 4318:4318 agentevals
| 4318 | OTLP HTTP receiver (traces and logs) |
| 8080 | MCP (Streamable HTTP) |
-### Helm
-
-The Helm chart is published as an OCI artifact to GitHub Container Registry:
+**Helm.**
```bash
helm install agentevals oci://ghcr.io/agentevals-dev/agentevals/helm/agentevals
```
-Pass `--version ` to pin to a specific release. Available versions are listed under [packages](https://github.com/agentevals-dev/agentevals/pkgs/container/agentevals%2Fhelm%2Fagentevals).
-
-The source for the chart lives in [`charts/agentevals/`](charts/agentevals/) if you want to install from a local checkout instead.
-
-See the [Kubernetes example](examples/kubernetes/README.md) for an end-to-end walkthrough deploying agentevals alongside kagent and an OTel Collector on Kubernetes.
-
-#### Postgres backend (`/api/runs`)
-
-> **Preview.** Persisting evaluations and exploring them in the UI works end
-> to end (see the [Run History guide](docs/run-history.md)), but the storage
-> layer is still stabilizing. The `storage.*` and `database.postgres.*` chart
-> values, the `/api/runs` HTTP surface, and the database schema may change
-> incompatibly in upcoming releases. Operators evaluating this feature should
-> plan to recreate the agentevals schema when upgrading between minor versions.
-> Default in-memory mode is unaffected.
-
-By default the chart deploys agentevals with an in-memory backend; runs and results are not persisted. To enable the async `POST /api/runs` pipeline with durable Postgres-backed state:
-
-```bash
-# Bundled Postgres (dev / evaluation only):
-helm install agentevals oci://ghcr.io/agentevals-dev/agentevals/helm/agentevals \
- --set storage.backend=postgres \
- --set database.postgres.bundled.enabled=true
-
-# Or supply an external Postgres DSN:
-helm install agentevals oci://ghcr.io/agentevals-dev/agentevals/helm/agentevals \
- --set storage.backend=postgres \
- --set database.postgres.url='postgresql://user:pass@host:5432/dbname'
-```
-
-When `storage.backend=postgres` the app applies any pending schema migrations on startup (advisory-lock protected, safe across replicas) and starts an in-process worker that processes the run queue. Without `storage.backend=postgres` the `/api/runs` endpoints return 503 with a hint pointing at the env var.
-
-Persisted runs power the **Run History** view in the UI, where you can group and trend evaluations by eval set or agent and drill into per-run detail. See the [Run History guide](docs/run-history.md) for the full feature walkthrough and local-dev setup.
-
-## MCP Server
-
-Exposes evaluation tools to MCP clients. A `.mcp.json` at the project root lets Claude Code pick it up automatically.
-
-| Tool | Requires `serve` | Description |
-|------|:---:|-------------|
-| `list_metrics` | yes | List available metrics |
-| `evaluate_traces` | no | Evaluate local trace files (OTLP or Jaeger) |
-| `list_sessions` | yes | List streaming sessions |
-| `summarize_session` | yes | Structured summary of a session's tool calls |
-| `evaluate_sessions` | yes | Evaluate sessions against a golden reference |
-
-```bash
-# Custom server URL (requires pip install "agentevals-cli[live]")
-AGENTEVALS_SERVER_URL=http://localhost:9000 agentevals mcp
-```
-
-The React UI and MCP server share the same in-memory session state and can run simultaneously.
-
-## Claude Code Skills
-
-Two slash-command workflows in `.claude/skills/`, available automatically in this repo:
-
-| Skill | What it does |
-|-------|-------------|
-| `/eval` | Score traces or compare sessions against a golden reference |
-| `/inspect` | Turn-by-turn narrative of a live session with anomaly detection |
+The chart runs in memory by default. `--set storage.backend=postgres` with a bundled or external Postgres enables the async `/api/runs` pipeline and the Run History view. That storage layer is a preview and its schema may change between minor versions. See [Run History](docs/run-history.md) and the [Kubernetes example](examples/kubernetes/README.md) for a full walkthrough with kagent and an OpenTelemetry Collector.
## Examples
-Working examples are in the [`examples/`](examples/) directory:
-
-| Example | Description |
-|---------|-------------|
-| [ADK](examples/zero-code-examples/adk/) | Google ADK agent with zero-code OTel export |
-| [LangChain](examples/zero-code-examples/langchain/) | LangChain agent with zero-code OTel export |
-| [Strands](examples/zero-code-examples/strands/) | Strands SDK agent with zero-code OTel export |
-| [OpenAI Agents](examples/zero-code-examples/openai-agents/) | OpenAI Agents SDK with zero-code OTel export |
-| [Ollama](examples/zero-code-examples/ollama/) | LangChain + Ollama for local LLM evaluation |
-| [Kubernetes](examples/kubernetes/) | End-to-end deployment with kagent and OTel Collector |
+| Example | What it shows |
+|---------|---------------|
+| [ADK](examples/zero-code-examples/adk/) | Google ADK agent, standard OTLP export |
+| [LangChain](examples/zero-code-examples/langchain/) | LangChain agent, OTLP traces and logs |
+| [Strands](examples/zero-code-examples/strands/) | Strands agent, standard OTLP export |
+| [OpenAI Agents](examples/zero-code-examples/openai-agents/) | OpenAI Agents SDK, standard OTLP export |
+| [Pydantic AI](examples/zero-code-examples/pydantic-ai/) | Pydantic AI agent, standard OTLP export |
+| [Ollama](examples/zero-code-examples/ollama/) | LangChain with a local model |
+| [SDK sessions](examples/README.md#sdk-integration) | LangChain, Strands and ADK agents through `AgentEvals` sessions |
+| [Kubernetes](examples/kubernetes/) | agentevals with kagent and an OpenTelemetry Collector |
## Docs
| Guide | Description |
|-------|-------------|
-| [Eval Set Format](docs/eval-set-format.md) | Schema, field reference, and examples for golden eval set JSON files |
-| [Custom Evaluators](docs/custom-evaluators.md) | Write your own scoring logic in Python, JavaScript, or any language |
-| [Live Streaming](docs/streaming.md) | Real-time trace streaming, dev server setup, and session management |
-| [Run History](docs/run-history.md) | Persisting evaluations to Postgres and exploring them over time in the UI |
-| [OpenTelemetry Compatibility](docs/otel-compatibility.md) | Supported OTel conventions, message delivery mechanisms, and OTLP receiver |
+| [OpenTelemetry Compatibility](docs/otel-compatibility.md) | What to send, per framework setup, sessions, receiver limits |
+| [OpenTelemetry Pipelines](docs/opentelemetry-pipeline.md) | Collector recipes and evaluation results as OpenTelemetry events |
+| [Eval Set Format](docs/eval-set-format.md) | Schema and examples for golden eval sets |
+| [Custom Evaluators](docs/custom-evaluators.md) | Write scoring logic in any language |
+| [Run History](docs/run-history.md) | Persist evaluations to Postgres and trend them in the UI |
## Development
```bash
-uv run pytest # run tests
+uv run pytest # tests
uv run agentevals serve --dev # backend
-cd ui && npm run dev # frontend (separate terminal)
+cd ui && npm run dev # frontend, separate terminal
```
-See [DEVELOPMENT.md](DEVELOPMENT.md) for build tiers, Makefile targets, and Nix setup. To contribute, see [CONTRIBUTING.md](CONTRIBUTING.md).
+See [DEVELOPMENT.md](DEVELOPMENT.md) and [CONTRIBUTING.md](CONTRIBUTING.md).
## FAQ
-**Do I need a database or any infrastructure to run agentevals?**
-
-No. agentevals is a single `pip install` with no database, no message queue, and no external services. The CLI evaluates trace files directly from disk. The web UI and live streaming use in-memory session state.
-
-**Does the CLI require a running server?**
-
-No. `agentevals run` evaluates trace files entirely offline. The server (`agentevals serve`) is only needed for the web UI, live OTLP streaming, and server-dependent MCP tools like `list_sessions`.
-
-**Can I use agentevals in CI/CD?**
-
-Yes. Pass trace files and an eval set, set a threshold, and let the exit code gate your deployment. Combine with `--output json` for machine-readable results. No server process needed.
+**Do I need a database or any infrastructure?**
-**What if I switch agent frameworks?**
+No. The CLI evaluates trace files from disk. The server keeps live sessions in memory. Postgres is optional and only backs run history.
-Because agentevals uses OpenTelemetry as its universal interface, switching frameworks does not require changing your evaluation setup. As long as your new framework emits OTel spans, the same eval sets and metrics work as before.
+**Does the CLI need a running server?**
-**Can I write evaluators in my own language?**
+No. `agentevals run` works offline. The server is for the web UI, live OTLP sessions and the MCP tools that read sessions.
-Yes. A custom evaluator is any program that reads JSON from stdin and writes a score to stdout. Python and JavaScript have first-class scaffolding support (`agentevals evaluator init`), but any language works.
+**Can I use it in CI?**
-**Can I plug agentevals into an existing OTel pipeline?**
+Yes. Pass trace files and an eval set, set a threshold, and let the exit code gate the deployment. `--output json` gives machine readable results.
-Yes. The OTLP receiver on port 4318 accepts standard `http/protobuf` and `http/json` trace exports, including gzip-compressed request bodies — so a default-configured OTel Collector works without setting `compression: none`. It slots into any OpenTelemetry pipeline as just another exporter destination. If your pipeline uses gRPC (port 4317), place an [OTel Collector](https://opentelemetry.io/docs/collector/) in front to bridge gRPC to HTTP. The [Kubernetes example](examples/kubernetes/README.md) shows this pattern.
+**Can I plug it into an existing OpenTelemetry pipeline?**
-**Can I use agentevals to evaluate Claude Code, Codex, or OpenCode?**
+Yes. agentevals accepts OTLP over HTTP (`http/protobuf` and `http/json`, gzip included) and gRPC, so a default Collector exporter works. With `--emit-otel` it sends evaluation results back as `gen_ai.evaluation.result` events. See [OpenTelemetry Pipelines](docs/opentelemetry-pipeline.md).
-Not today. agentevals scores agent behavior from OpenTelemetry GenAI traces (spans for model calls, tool calls, agent invocations following the [OTel GenAI semantic conventions](https://opentelemetry.io/docs/specs/semconv/gen-ai/)). The major coding agents do not currently emit telemetry in that shape:
+**Can I evaluate Claude Code, Codex or OpenCode?**
-- **Claude Code** ships OTel telemetry as logs, not GenAI spans. A prior proof of concept on a feature branch made it work by stitching hook events into synthetic traces. Reviving that path is on the backlog, not a near-term commitment.
-- **Codex** exposes OTel, but in a different shape we have not yet validated against the GenAI semconv.
-- **OpenCode** did not have OTel support merged the last time we checked.
+Partly. They do not emit GenAI semantic convention spans, so agentevals sees a turn only when something wraps it in one, as kagent does for its Claude Code harness. A Collector recipe can then map Claude Code's own spans to tool and model calls, see the [Kubernetes example](examples/kubernetes/README.md#claude-code-workaround). agentevals is built for instrumented agents whose success is measurable through tool trajectories and responses, not for scoring long coding sessions end to end.
-Retrofitting agentevals to ingest each harness's bespoke telemetry is multiple thousands of lines of glue code per agent, for a use case where the dominant signal is "did the final output feel right," not "did the agent call the right tool with the right arguments in the right order." That kind of vibes evaluation is interesting work for harness and coding-agent vendors themselves, but it is not what agentevals is optimized for.
+**How is this different from LangSmith, Langfuse, Opik or Bedrock AgentCore evaluation?**
-agentevals is built for the opposite end of the spectrum: smaller, purpose-built, properly instrumented agents (kagent, agentregistry, custom Strands / ADK / LangChain / OpenAI Agents SDK flows) running in cloud native environments, where success is measurable through tool trajectories, response matching, and deterministic pass/fail gates. If that is your use case, we are a good fit. If you are evaluating long-running coding sessions end to end, you probably want a tool built specifically for that shape.
+Those run your agent again against a dataset, or need their own SDK and storage before anything can be scored. agentevals scores the OpenTelemetry telemetry you already have, from any instrumentation, without rerunning the agent and without a platform to host.
**How does this compare to ADK's evaluations?**
-Unlike ADK's eval method, which couples agent execution with evaluation, agentevals only handles scoring: it takes pre-recorded traces and compares them against expected behavior using metrics like tool trajectory matching, response quality, and LLM-based judgments.
-
-However, if you're iterating on your agents locally, you can point your agents to agentevals and you will see rich runtime information in your browser. For more details, use the bundled wheel and explore the Local Development option in the UI.
-
-**How does this compare to Bedrock AgentCore's evaluation?**
-
-AgentCore's evaluation integration (via `strands-agents-evals`) also couples agent execution with evaluation. It re-invokes the agent for each test case, converts the resulting OTel spans to AWS's ADOT format, and scores them against 4 built-in evaluators (Helpfulness, Accuracy, Harmfulness, Relevance) via a cloud API call. This means you need an AWS account, valid credentials, and network access for every evaluation.
-
-agentevals scores pre-recorded traces locally without re-running anything. It works with standard Jaeger JSON and OTLP formats from any framework, supports open-ended metrics (tool trajectory matching, LLM-based judges, custom scorers), and ships with a CLI, web UI, and MCP server. No cloud dependency required, though we do include all ADK's GCP-based evals as of now.
-
-**How does this compare to LangSmith?**
-
-LangSmith is a cloud platform (self-hosting requires an Enterprise plan) where offline evaluation re-executes your application against curated datasets. Its deepest integration is with LangChain/LangGraph, though it can work with other frameworks. agentevals scores pre-recorded OTel traces without re-execution, requires no cloud account or enterprise license, and uses OpenTelemetry as the universal interface rather than a proprietary SDK.
-
-**How does this compare to Langfuse?**
-
-Langfuse is a full observability platform (requires Postgres, ClickHouse, Redis, and S3 for self-hosting) that supports both offline experiments (re-execution) and online evaluation of ingested traces. Traces must be ingested into Langfuse first via its SDK or OTel integration before they can be scored. agentevals evaluates raw OTel trace files or live OTLP streams directly with no database or platform infrastructure required.
-
-**How does this compare to Opik?**
-
-Opik's primary evaluation path re-runs your application code against a dataset, incurring additional LLM costs per eval run. It also supports online evaluation rules that auto-score production traces. While Opik supports OpenTelemetry ingestion alongside its own SDK, its evaluation workflow still centers on re-execution against datasets. agentevals evaluates pre-recorded OTel traces from any framework without re-execution, and runs entirely locally with no cloud dependency.
+ADK eval runs the agent and scores it in one step. agentevals only scores, from telemetry, and uses ADK's metrics and eval set format to do it. Point an ADK agent at agentevals and you get live inspection and scoring without changing the agent.
## Acknowledgements
-agentevals is built on top of [Google's Agent Development Kit](https://github.com/google/adk-python). ADK provides the evaluator protocol and the canonical eval data model (`Invocation`, `EvalSet`, `Evaluator`, prebuilt metrics) that this project extends. `google-adk` is licensed under [Apache 2.0](https://github.com/google/adk-python/blob/main/LICENSE), the same license as agentevals. Thanks to the ADK team and contributors.
+The built in metrics and the eval set format come from [Google's Agent Development Kit](https://github.com/google/adk-python), licensed under [Apache 2.0](https://github.com/google/adk-python/blob/main/LICENSE) like agentevals. Thanks to the ADK team and contributors.
diff --git a/charts/agentevals/values.yaml b/charts/agentevals/values.yaml
index 9285404b..50e5c660 100644
--- a/charts/agentevals/values.yaml
+++ b/charts/agentevals/values.yaml
@@ -2,10 +2,11 @@
# Global
# ==============================================================================
-# -- Number of replicas. The default in-memory backend has no shared state, so
-# scale beyond 1 only when storage.backend is "postgres" (durable runs/results
-# in Postgres are safe to share across replicas via SELECT FOR UPDATE SKIP
-# LOCKED claim semantics).
+# -- Number of replicas. Keep 1 when agents or a Collector send OTLP to this
+# release: live sessions are held in the memory of the pod that receives them,
+# so with more replicas one session's traces and logs end up split across pods.
+# Postgres (storage.backend "postgres") shares only runs and results between
+# replicas (SELECT FOR UPDATE SKIP LOCKED claims), not live sessions.
replicaCount: 1
# -- Global container image registry (prepended to image.repository)
diff --git a/docs/custom-evaluators.md b/docs/custom-evaluators.md
index 06fe2572..87cb251e 100644
--- a/docs/custom-evaluators.md
+++ b/docs/custom-evaluators.md
@@ -102,27 +102,29 @@ Each evaluator entry in the `evaluators` list uses the following fields. The `ty
## Protocol
-Every evaluator — regardless of language — communicates via the same JSON protocol over stdin/stdout.
+Every evaluator, in any language, uses the same JSON protocol over stdin and stdout.
### Input (`EvalInput`)
```json
{
- "protocol_version": "1.0",
+ "protocol_version": "1.1",
"metric_name": "response_quality",
"threshold": 0.7,
"config": { "min_length": 20 },
"invocations": [
{
- "invocation_id": "inv-001",
+ "invocation_id": "a1b2c3d4e5f60718",
+ "trace_id": "4bf92f3577b34da6a3ce929d0e0e4736",
+ "span_id": "a1b2c3d4e5f60718",
"user_content": "What is 2+2?",
"final_response": "The answer is 4.",
"intermediate_steps": {
"tool_calls": [
- { "name": "calculator", "args": { "expression": "2+2" } }
+ { "id": "call_1", "name": "calculator", "args": { "expression": "2+2" } }
],
"tool_responses": [
- { "name": "calculator", "output": "4" }
+ { "id": "call_1", "name": "calculator", "output": "{\"result\": 4}", "response": { "result": 4 } }
]
}
}
@@ -133,7 +135,7 @@ Every evaluator — regardless of language — communicates via the same JSON pr
| Field | Type | Description |
|---|---|---|
-| `protocol_version` | string | Wire-format version (`"MAJOR.MINOR"`). Current: `"1.0"` |
+| `protocol_version` | string | Wire format version (`"MAJOR.MINOR"`). Current: `"1.1"` |
| `metric_name` | string | Name of this evaluator |
| `threshold` | float | Pass/fail threshold |
| `config` | object | User-provided config from the YAML |
@@ -144,7 +146,8 @@ Each invocation contains:
| Field | Type | Description |
|---|---|---|
-| `invocation_id` | string | Unique turn identifier |
+| `invocation_id` | string | Unique turn id: the span id of the turn's agent span |
+| `trace_id`, `span_id` | string or null | Where the turn is in the telemetry (1.1) |
| `user_content` | string | What the user said |
| `final_response` | string or null | The agent's final response |
| `intermediate_steps` | object | Steps between user input and final response |
@@ -153,8 +156,10 @@ The `intermediate_steps` object contains:
| Field | Type | Description |
|---|---|---|
-| `tool_calls` | array | Tools the agent called |
-| `tool_responses` | array | Responses the agent received from tools |
+| `tool_calls` | array | Tools the agent called: `name`, `args`, and `id` when the producer recorded one (1.1) |
+| `tool_responses` | array | Tool results: `name`, `output` (the result as JSON text), `response` (the same result as a JSON value, 1.1) and `id` of the call it answers (1.1) |
+
+Tool results used to arrive in `output` as Python text in 1.0. Read `response` for structured access.
### Output (`EvalResult`)
@@ -176,18 +181,18 @@ The `intermediate_steps` object contains:
### Protocol Versioning
-The `protocol_version` field uses `"MAJOR.MINOR"` format (currently `"1.0"`). This allows the CLI and SDK to evolve independently while maintaining compatibility:
+The `protocol_version` field uses `"MAJOR.MINOR"` format (currently `"1.1"`). This lets the CLI and SDK evolve independently:
-- **Additive only** -- new fields may be added to `EvalInput` or `EvalResult`; existing fields are never removed or renamed within the same major version.
-- **Defaults required** -- every new field must have a default value. Older deserializers silently ignore unknown fields (Pydantic's default behavior), so an evaluator built against an older SDK will still work with a newer CLI.
-- **MINOR bumps** -- additive changes (new optional fields). No action required by evaluator authors.
-- **MAJOR bumps** -- breaking changes (removed fields, type changes). The SDK's `@evaluator` decorator will log a warning if it sees a major version it does not recognize.
+* **Additive only.** New fields may be added; existing fields are never removed or renamed within a major version.
+* **Defaults required.** Every new field has a default, and older SDKs ignore unknown fields, so an evaluator built against 1.0 keeps working with a 1.1 CLI.
+* **Minor bumps** add optional fields. Nothing to do for evaluator authors.
+* **Major bumps** are breaking. The SDK's `@evaluator` decorator warns when it sees a major version it does not know.
The CLI and SDK are **independent packages**. Install them at whatever versions you need:
```bash
-pip install agentevals # CLI -- may speak protocol 1.1
-pip install agentevals-evaluator-sdk # SDK -- may speak protocol 1.0
+pip install agentevals # CLI, speaks protocol 1.1
+pip install agentevals-evaluator-sdk # SDK, works with 1.0 and 1.1
```
As long as the major version matches, they are compatible.
@@ -321,9 +326,9 @@ Custom evaluators use a layered architecture designed for extensibility.
│
▼
┌──────────────────────────┐
-│ CustomEvaluatorRunner │
-│ ADK Evaluator adapter │
-│ Invocation ↔ EvalInput │
+│ evaluate_custom_evaluator│
+│ turns ↔ EvalInput │
+│ EvalResult → metric │
└──────────┬───────────────┘
│
▼
@@ -346,7 +351,7 @@ Custom evaluators use a layered architecture designed for extensibility.
- **`EvaluatorBackend`** is the execution abstraction. The `executor` field in config selects which factory to use (`"local"` → `SubprocessBackend`). New executors (e.g. `DockerBackend`) register via `register_executor()`.
- **`SubprocessBackend`** runs a local file as a child process, piping JSON over stdin/stdout.
- **`Runtime`** is an internal detail of `SubprocessBackend` that maps file extensions to interpreter commands.
-- **`CustomEvaluatorRunner`** adapts any `EvaluatorBackend` into ADK's `Evaluator` interface, handling the conversion between ADK's `Invocation` objects and the simpler `EvalInput`/`EvalResult` protocol.
+- **`evaluate_custom_evaluator`** turns the extracted conversation into `EvalInput`, runs the backend and maps `EvalResult` back to a metric result. It does not use ADK.
### Adding a new language runtime
@@ -375,7 +380,7 @@ _RUNTIMES: list[Runtime] = [
]
```
-No other files need to change — the extension validator and evaluator pick it up automatically.
+No other files need to change: the extension validator and evaluator pick it up automatically.
### Adding a new executor
diff --git a/docs/eval-set-format.md b/docs/eval-set-format.md
index 9a29effc..b637a765 100644
--- a/docs/eval-set-format.md
+++ b/docs/eval-set-format.md
@@ -216,6 +216,30 @@ Not all evaluators require an eval set. Use `agentevals evaluator list --source
| `hallucinations_v1` | no | N/A |
| `safety_v1` | no | N/A |
+## How traces are matched to cases
+
+Each trace, or each conversation when traces are grouped, is compared with one eval case:
+
+1. The case named by an `agentevals.eval.case.id` attribute (on a span or the resource).
+2. Otherwise the case whose first user message equals the trace's first user message (case and spacing ignored). If several cases match, the one with the same number of turns.
+3. Otherwise, when the eval set has exactly one case and you evaluate exactly one trace or conversation, that case.
+
+If nothing matches, metrics that need a golden report `NOT_EVALUATED` with the reason in `details.reason`. agentevals never falls back to the first case.
+
+Turns are compared in order. Extra or missing turns are reported as `unexpected_turns` / `missing_turns` in the metric details.
+
+### Grouping traces into conversations
+
+`--group-by` (CLI) or `group_by` (API config) decides what one evaluated unit is:
+
+| Value | Unit |
+|---|---|
+| `auto` (default) | A conversation when a trace carries `agentevals.session_name` or the eval set has a case with more than one invocation; otherwise each trace |
+| `conversation` | Traces that share `agentevals.session_name`, `gen_ai.conversation.id` or `session.id` |
+| `trace` | Each trace |
+
+Use `conversation` when each turn of a multi turn conversation is its own trace.
+
## Usage
### CLI
diff --git a/docs/opentelemetry-pipeline.md b/docs/opentelemetry-pipeline.md
new file mode 100644
index 00000000..8ecc3d69
--- /dev/null
+++ b/docs/opentelemetry-pipeline.md
@@ -0,0 +1,143 @@
+# OpenTelemetry pipelines
+
+How to put agentevals behind an OpenTelemetry Collector, and how to get evaluation results back into your observability backend. Both configs below were checked with `otelcol-contrib validate` (Collector contrib 0.162.0).
+
+## Forward agent telemetry to agentevals
+
+Send traces and logs from your agents to the Collector, and from the Collector to agentevals:
+
+```yaml
+receivers:
+ otlp:
+ protocols:
+ grpc:
+ endpoint: 0.0.0.0:4317
+ http:
+ endpoint: 0.0.0.0:4318
+exporters:
+ otlphttp/agentevals:
+ endpoint: http://agentevals:4318
+service:
+ pipelines:
+ traces:
+ receivers: [otlp]
+ exporters: [otlphttp/agentevals]
+ logs:
+ receivers: [otlp]
+ exporters: [otlphttp/agentevals]
+```
+
+The `otlphttp` exporter uses gzip by default, which agentevals accepts. Send logs as well as traces: several instrumentations put message content in log events.
+
+Send to one agentevals instance. Live sessions are kept in the memory of the process that receives them, so behind a load balancer with several replicas a session is split between them. The Helm chart keeps `replicaCount: 1` for this reason.
+
+## Production: backend and agentevals side by side
+
+One Collector, two branches:
+
+* **To your backend**, with prompt and response text removed, so content is not stored long term.
+* **To agentevals**, with content, so it can be evaluated.
+
+Evaluation results come back from agentevals as log events. They go to your backend next to the agent's traces, and a score histogram metric is derived from them.
+
+```yaml
+receivers:
+ otlp:
+ protocols:
+ grpc:
+ endpoint: 0.0.0.0:4317
+ http:
+ endpoint: 0.0.0.0:4318
+processors:
+ memory_limiter:
+ check_interval: 1s
+ limit_percentage: 80
+ spike_limit_percentage: 20
+ transform/drop_genai_content:
+ trace_statements:
+ - delete_key(span.attributes, "gen_ai.input.messages")
+ - delete_key(span.attributes, "gen_ai.output.messages")
+ - delete_key(span.attributes, "gen_ai.system_instructions")
+ filter/not_from_agentevals:
+ logs:
+ log_record:
+ - resource.attributes["service.name"] == "agentevals"
+connectors:
+ signaltometrics:
+ logs:
+ - name: agentevals.evaluation.score
+ description: Scores from gen_ai.evaluation.result events
+ unit: "1"
+ conditions:
+ - log.event_name == "gen_ai.evaluation.result" and log.attributes["gen_ai.evaluation.score.value"] != nil
+ attributes:
+ - key: gen_ai.evaluation.name
+ - key: gen_ai.evaluation.score.label
+ optional: true
+ histogram:
+ buckets: [0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0]
+ value: Double(log.attributes["gen_ai.evaluation.score.value"])
+exporters:
+ otlp/backend:
+ endpoint: ${env:BACKEND_OTLP_ENDPOINT}
+ sending_queue:
+ enabled: true
+ otlphttp/agentevals:
+ endpoint: http://agentevals:4318
+ sending_queue:
+ enabled: true
+service:
+ pipelines:
+ traces/backend:
+ receivers: [otlp]
+ processors: [memory_limiter, transform/drop_genai_content]
+ exporters: [otlp/backend]
+ traces/agentevals:
+ receivers: [otlp]
+ processors: [memory_limiter]
+ exporters: [otlphttp/agentevals]
+ logs/backend:
+ receivers: [otlp]
+ processors: [memory_limiter]
+ exporters: [otlp/backend, signaltometrics]
+ logs/agentevals:
+ receivers: [otlp]
+ processors: [memory_limiter, filter/not_from_agentevals]
+ exporters: [otlphttp/agentevals]
+ metrics:
+ receivers: [signaltometrics]
+ exporters: [otlp/backend]
+```
+
+Notes:
+
+* `filter/not_from_agentevals` keeps agentevals' own results out of the agentevals branch. agentevals also drops them itself.
+* If you sample, sample whole traces and only on the backend branch. agentevals needs complete traces.
+* For producers that use OpenInference or OpenLLMetry attribute names, the contrib `gen_ai_normalizer` processor (alpha) can map them to GenAI conventions on the agentevals branch.
+* For Claude Code under kagent, the [Kubernetes example](../examples/kubernetes/README.md#claude-code-workaround) has a `transform` recipe that maps its spans to tool and model calls.
+
+## Send evaluation results from agentevals
+
+Turn it on with `--emit-otel` (`agentevals run` and `agentevals serve`) or `AGENTEVALS_EVALUATION_EVENTS=true`, and point the standard exporter variables at your Collector:
+
+```bash
+export OTEL_EXPORTER_OTLP_ENDPOINT=http://otel-collector:4318
+agentevals run traces.json -e eval_set.json -m tool_trajectory_avg_score --emit-otel
+```
+
+`OTEL_EXPORTER_OTLP_PROTOCOL=grpc` (with port 4317) switches to gRPC. `OTEL_SDK_DISABLED=true` or `OTEL_LOGS_EXPORTER=none` turns emitting off even when it is enabled. `OTEL_SERVICE_NAME` and `OTEL_RESOURCE_ATTRIBUTES` work as usual.
+
+Each result is a `gen_ai.evaluation.result` log event attached to the span it scores (the turn's agent span, or its last model call). Metrics that score each turn give one event per turn; others give one event on the last turn.
+
+| Attribute | Value |
+|---|---|
+| `gen_ai.evaluation.name` | Evaluator name |
+| `gen_ai.evaluation.score.value` | Score, when there is one |
+| `gen_ai.evaluation.score.label` | `pass`, `fail` or `not_evaluated` |
+| `error.type` | Exception class when the evaluator failed (no score or label then) |
+| `gen_ai.evaluation.explanation` | Only with `AGENTEVALS_EVALUATION_EVENTS_EXPLANATION=true` |
+| `gen_ai.agent.name`, `gen_ai.conversation.id`, `gen_ai.response.id` | Copied from the evaluated span when present |
+| `agentevals.evaluator.type` | `llm_judge` or `deterministic` for built in metrics |
+| `agentevals.eval.run.id`, `agentevals.eval.case.id`, `agentevals.eval_set.id` | When known |
+
+Events never contain prompts, responses or tool arguments. The explanation can, which is why it is off by default.
diff --git a/docs/otel-compatibility.md b/docs/otel-compatibility.md
index 4313de95..c8334613 100644
--- a/docs/otel-compatibility.md
+++ b/docs/otel-compatibility.md
@@ -1,259 +1,122 @@
-# OpenTelemetry Compatibility
+# Sending telemetry to agentevals
-agentevals consumes OpenTelemetry traces to evaluate AI agents. This document covers which OTel conventions we support, how we handle the ongoing migration from span events to log-based events, and guidance for instrumenting your own agents.
+agentevals reads standard OpenTelemetry GenAI telemetry: spans, plus log events for message content. Any producer that follows the [GenAI semantic conventions](https://opentelemetry.io/docs/specs/semconv/gen-ai/) works. This page says what agentevals needs, how to set up common producers, and what the receiver accepts.
-## Supported Semantic Conventions
+## What agentevals needs
-### OTel GenAI Semantic Conventions (recommended)
+| To get | Send |
+|---|---|
+| Turns | An `invoke_agent` or `invoke_workflow` span per user turn. Without one, each root span with model calls becomes a turn. |
+| User input and final answer | `gen_ai.input.messages` / `gen_ai.output.messages` on the agent span or the model call spans (as attributes or as log events). |
+| Tool trajectory | `execute_tool` spans with `gen_ai.tool.name`, ideally `gen_ai.tool.call.id`. |
+| Tool arguments and results | `gen_ai.tool.call.arguments` / `gen_ai.tool.call.result`, or `tool_call` / `tool_call_response` message parts. |
+| Tokens and model | `gen_ai.usage.input_tokens`, `gen_ai.usage.output_tokens`, `gen_ai.request.model` on model call spans. |
+| Errors | Span status ERROR and `error.type`. |
+| Sessions | One of the keys in [Sessions](#sessions). |
-The [GenAI semantic conventions](https://opentelemetry.io/docs/specs/semconv/gen-ai/) define standard span attributes for LLM interactions. agentevals auto-detects this format when spans contain `gen_ai.request.model` or `gen_ai.input.messages`.
+Message content is optional. Without it you still get tools, tokens, errors and latency, but text based metrics have nothing to score.
-This format works with LangChain, Strands, OpenAI instrumentation, Anthropic instrumentation, and any framework that follows the GenAI semantic conventions.
+## Producer setup
-#### Core attributes
+| Producer | Set |
+|---|---|
+| Google ADK (Python) | Nothing for the defaults. For the latest conventions: `ADK_TELEMETRY_SCHEMA_VERSION_OPT_IN=2` and `OTEL_SEMCONV_STABILITY_OPT_IN=gen_ai_latest_experimental`, with `OTEL_INSTRUMENTATION_GENAI_CAPTURE_MESSAGE_CONTENT=SPAN_ONLY` (or `EVENT_ONLY` plus a log exporter). |
+| adk-go | Nothing. The root `invoke_agent` span marks the turn. |
+| Official OpenTelemetry GenAI packages (`opentelemetry-instrumentation-genai-*`, 1.2b0+) | `OTEL_INSTRUMENTATION_GENAI_CAPTURE_MESSAGE_CONTENT=SPAN_AND_EVENT` for content. They always use the latest conventions. |
+| `opentelemetry-instrumentation-openai-v2` (LangChain, plain OpenAI) | `OTEL_INSTRUMENTATION_GENAI_CAPTURE_MESSAGE_CONTENT=true`, and export logs too: content arrives as log events. |
+| Strands | `OTEL_SEMCONV_STABILITY_OPT_IN=gen_ai_latest_experimental`. |
+| OpenAI Agents SDK | `OTEL_INSTRUMENTATION_GENAI_CAPTURE_MESSAGE_CONTENT=span_and_event` and `OTEL_SEMCONV_STABILITY_OPT_IN=gen_ai_latest_experimental`. Tool spans carry no call id, so tools match by name. |
+| kagent (OpenLLMetry `gen_ai.prompt.N.*` attributes) | Nothing. These are read as a legacy fallback. |
-| Attribute | Description |
-|-----------|-------------|
-| `gen_ai.request.model` | Model name (e.g. `gpt-4o`, `claude-sonnet-4-6`) |
-| `gen_ai.input.messages` | JSON array of input messages |
-| `gen_ai.output.messages` | JSON array of output messages |
-| `gen_ai.response.finish_reasons` | Why the model stopped generating |
-| `gen_ai.usage.input_tokens` | Input token count |
-| `gen_ai.usage.output_tokens` | Output token count |
+Working setups for each are in [examples/zero-code-examples](../examples/zero-code-examples/).
-#### Provider and response metadata (v1.37.0+)
+If a framework only instruments the model client (each model call is its own trace), agentevals joins a call that answers a tool result to the turn before it. This needs message content.
-| Attribute | Description |
-|-----------|-------------|
-| `gen_ai.provider.name` | LLM provider (e.g. `openai`, `anthropic`). Replaces the deprecated `gen_ai.system`. |
-| `gen_ai.response.model` | Model name returned in the response |
-| `gen_ai.response.id` | Unique response identifier |
+## Sessions
-#### Request parameters (v1.40.0)
+Live traces are grouped into sessions by the first key present:
-| Attribute | Description |
-|-----------|-------------|
-| `gen_ai.request.temperature` | Temperature sampling parameter |
-| `gen_ai.request.max_tokens` | Maximum output tokens limit |
-| `gen_ai.request.top_p` | Top-P (nucleus) sampling parameter |
-| `gen_ai.request.top_k` | Top-K sampling parameter |
+1. resource `agentevals.session_name`
+2. `gen_ai.conversation.id` (span, then resource)
+3. `session.id` (span, then resource)
-#### Cache token usage
+Traces with none of these become a session of their own when they contain GenAI spans. Traces with no GenAI span at all are held back for two minutes and shown only if a GenAI span or a key arrives for them.
-| Attribute | Description |
-|-----------|-------------|
-| `gen_ai.usage.cache_creation.input_tokens` | Tokens spent creating a prompt cache entry |
-| `gen_ai.usage.cache_read.input_tokens` | Tokens served from an existing cache entry |
+Reruns with the same `agentevals.session_name` become `name-2`, `name-3`. A rerun is recognized by a different `service.instance.id`, so set one per process:
-These are relevant for providers that support prompt caching (Anthropic, OpenAI). agentevals aggregates these across LLM spans and displays them in the performance summary.
-
-#### Agent and tool metadata (v1.31.0+)
-
-| Attribute | Description |
-|-----------|-------------|
-| `gen_ai.agent.id` | Unique agent identifier |
-| `gen_ai.agent.description` | Agent description |
-| `gen_ai.tool.description` | Tool description |
-| `gen_ai.tool.type` | Tool type classification |
-
-#### Opt-in attributes (v1.37.0+)
-
-These may contain large payloads and are typically gated behind instrumentation flags:
-
-| Attribute | Description |
-|-----------|-------------|
-| `gen_ai.system_instructions` | System prompt text |
-| `gen_ai.tool.definitions` | Tool schema definitions (JSON) |
-| `gen_ai.output.type` | Classification of output content |
-
-### Google ADK (framework-native)
-
-Google ADK emits spans under the `gcp.vertex.agent` OTel scope with proprietary attributes (`gcp.vertex.agent.llm_request`, `gcp.vertex.agent.llm_response`, etc.). agentevals has a dedicated converter that auto-detects this format. No GenAI semconv configuration is needed.
-
-### Format Detection
-
-Format detection is automatic. When a trace contains both ADK and GenAI attributes, ADK takes priority because it provides richer structured data. The detection logic lives in `src/agentevals/converter.py` (`get_extractor()`).
-
-## Message Formats
-
-GenAI message content (`gen_ai.input.messages`, `gen_ai.output.messages`) can use two JSON schemas. agentevals supports both and normalizes them internally.
-
-### Content-based format
-
-Used by OpenAI and LangChain instrumentors (v2):
-
-```json
-{"role": "user", "content": "Hello"}
-{"role": "assistant", "content": "...", "tool_calls": [{"type": "function", "function": {"name": "get_weather", "arguments": "{\"city\": \"NYC\"}"}}]}
-```
-
-### Parts-based format (v1.36.0+)
-
-Used by newer instrumentors that follow the GenAI semconv parts schema:
-
-```json
-{"role": "user", "parts": [{"type": "text", "content": "Hello"}]}
-{"role": "assistant", "parts": [{"type": "tool_call", "name": "get_weather", "arguments": {"city": "NYC"}}]}
+```bash
+export OTEL_RESOURCE_ATTRIBUTES="agentevals.session_name=my-agent,service.instance.id=$(uuidgen)"
```
-Both formats are auto-detected per message. Tool calls are normalized to `{name, id, arguments}` regardless of source format.
-
-## Message Content Delivery
-
-GenAI message content can arrive through three mechanisms. agentevals supports all of them:
-
-### 1. Span attributes (simplest)
-
-Message content is stored directly as span attributes. This is the most straightforward approach and requires no special handling.
-
-### 2. Log records (recommended for new instrumentation)
-
-Message content is emitted as OTel log records correlated with spans via trace context. This is the pattern used by `opentelemetry-instrumentation-openai-v2` and LangChain's GenAI instrumentation.
-
-Requires both `OTLPSpanExporter` and `OTLPLogExporter` (or their streaming equivalents). Set `OTEL_INSTRUMENTATION_GENAI_CAPTURE_MESSAGE_CONTENT=true` to enable content capture.
-
-### 3. Span events (deprecated, supported for backward compatibility)
-
-Message content is emitted as attributes on span events. agentevals promotes these to span-level attributes during normalization so downstream processing sees a uniform shape.
-
-This promotion happens in three processing layers:
-- `streaming/processor.py` for live WebSocket spans
-- `api/otlp_routes.py` for OTLP HTTP reception
-- `loader/otlp.py` for loading OTLP JSON files
-
-## Span Events Deprecation
-
-The OTel community is [deprecating the Span Event API](https://opentelemetry.io/blog/2026/deprecating-span-events/) (`Span.AddEvent`, `Span.RecordException`) in favor of emitting events as log records via the Logs API. The core idea: "events are logs with names," correlated with traces through context.
+Without `service.instance.id`, a new trace counts as a rerun once the previous session has been finished for 30 seconds. Sessions keyed by a conversation or session id never split.
-### What this means for agentevals users
+A trace is finished 3 seconds after its root span arrives (30 seconds if no root ever arrives), and a session when all its traces are. New spans reopen a finished session; logs that arrive late update it without reopening. Finished sessions stay in memory for 2 hours.
-**No immediate action required.** Existing instrumentation continues to work. The deprecation is about providing a single recommended path for new code, not about removing support for existing span event data.
+Anyone who can reach the receiver can add traces to a session by reusing its key, and the server has no authentication. Bind it to 127.0.0.1 (`agentevals serve --host 127.0.0.1`) on shared machines, and do not expose it to untrusted networks.
-**For new instrumentation**, prefer the logs-based pattern. Configure both `OTLPSpanExporter` and `OTLPLogExporter`, and use instrumentation libraries that emit message content as log records.
+### Evaluate live sessions
-**For existing span-event instrumentation** (e.g. Strands with `OTEL_SEMCONV_STABILITY_OPT_IN=gen_ai_latest_experimental`), everything continues to work. When your framework releases a version that migrates to log-based events, update your exporter configuration to include `OTLPLogExporter` and follow the logs-based pattern.
+In the UI, pick a golden session and evaluate the others against it; each session is scored as one conversation. From scripts:
-### What this means for agentevals internals
+| Endpoint | Use |
+|---|---|
+| `GET /api/streaming/sessions` | List sessions with their turns |
+| `GET /api/streaming/sessions/{id}/otlp` | The session as an OTLP/JSON document; `agentevals run` reads it back |
+| `POST /api/streaming/create-eval-set` | Build an eval set from a session |
+| `POST /api/streaming/evaluate-sessions` | Score every finished session against a golden session |
-agentevals already supports both content delivery mechanisms. The span event promotion logic will remain for backward compatibility with older instrumentation versions. As frameworks migrate, the log-based path (already fully supported) will become the primary path.
+## Sampling
-### Migration checklist for framework authors
+agentevals needs whole traces. Keep the SDK sampler at its default (always on). If you sample in a Collector, sample whole traces (tail sampling) and keep the logs of the traces you keep. A trace with missing spans gives missing turns or tools.
-If you maintain an OTel-instrumented agent framework and want to align with the deprecation:
+## What agentevals ignores
-1. Emit `gen_ai.input.messages` and `gen_ai.output.messages` as log records instead of span events
-2. Correlate logs with spans via trace context (the OTel SDK handles this automatically)
-3. Document that users need both `OTLPSpanExporter` and `OTLPLogExporter`
-4. Consider an opt-in flag (similar to `OTEL_SEMCONV_EXCEPTION_SIGNAL_OPT_IN`) during the transition
+* Span names. Spans are classified by `gen_ai.operation.name`.
+* `schema_url`.
+* Log records that are not `gen_ai.*` events, and logs without trace context.
+* Its own `gen_ai.evaluation.result` events, so a pipeline that loops back does not feed results in again.
-## OTLP Receiver
+Vendor attributes (`gcp.vertex.agent.*`) are read as a fallback, never required.
-agentevals runs two OTLP receivers:
+## Receiver
-- **gRPC** on port 4317 (standard OTLP gRPC port, configurable via `--otlp-grpc-port`)
-- **HTTP** on port 4318 (standard OTLP HTTP port)
+| Port | Protocol |
+|---|---|
+| 4318 | OTLP/HTTP: `/v1/traces`, `/v1/logs`, JSON or protobuf, gzip or no compression |
+| 4317 | OTLP/gRPC: trace and log export, gzip |
-Both accept traces and logs and feed into the same session manager.
-
-### OTLP HTTP
-
-| Endpoint | Content Types | Request compression |
-|----------|--------------|---------------------|
-| `/v1/traces` | `application/json`, `application/x-protobuf` | `gzip`, `identity` |
-| `/v1/logs` | `application/json`, `application/x-protobuf` | `gzip`, `identity` |
-
-Responses mirror the request's `Content-Type` and are never compressed: an Export response is only a
-few bytes (a full success serializes to zero bytes), and gzip framing would inflate it. A stock OTel
-Collector needs no configuration for requests: its OTLP exporter gzip-compresses by default and that
-is supported here.
-
-#### Conformance
-
-| Condition | Response |
-|-----------|----------|
-| Payload undecodable (bad JSON, bad protobuf, corrupt or truncated gzip) | `400` — permanent, clients must not retry |
-| Payload decodable but structurally invalid (e.g. `resourceSpans` is not a list of objects) | `400` |
-| Unsupported `Content-Encoding` (`br`, `deflate`, `zstd`, `snappy`, …) | `415` — set `compression: gzip` or `none` on the exporter |
-| Body exceeds 64 MiB on the wire | `413` |
-| Body exceeds 64 MiB after decompression | `413` |
-| gzip body exceeds 8 MiB compressed | `413` |
-| gzip body has more than 32 concatenated members | `400` |
-| Unrecognized `Content-Type` | `415` (a missing header is treated as JSON) |
-| Success, nothing dropped | `200` with `partial_success` unset |
-| Success, some records dropped | `200` with `partial_success` populated |
-
-Request bodies are bounded on both paths and in both directions: the wire body at 64 MiB
-(compressed or not) and the decompressed output at 64 MiB, with a tighter 8 MiB cap on compressed
-input. The wire cap holds during the upload — `Content-Length` is checked before the body is read,
-and the bytes are counted as they arrive, so an oversized chunked upload is stopped partway rather
-than buffered first. Concatenated gzip members are counted as well, because decoding cost scales
-with member count rather than output — a body of 20-byte empty members costs CPU in proportion to its
-size while producing nothing, so a member cap is what actually bounds the work. Real exporters emit a
-single member; 32 is generous headroom.
-
-Decompression and decoding both run off the event loop, which this process shares with the dashboard
-API, the UI streams and the gRPC receiver; parsing dominates at roughly 40 ms per MiB.
-
-Because `413` is permanent, a collector drops the whole batch rather than retrying or splitting it —
-so if you export large batches (full prompts in span attributes add up), cap the batch size in bytes
-on the exporter's sending queue, e.g. the Collector's `sending_queue`/`batch` settings.
-
-Every `4xx`/`5xx` body is a `google.rpc.Status` message, with `Status.code` populated
-(`INVALID_ARGUMENT` for `400`/`415`, `RESOURCE_EXHAUSTED` for `413`, `INTERNAL` for `500`,
-`UNAVAILABLE` for `503`). Its encoding
-mirrors the request, so the response's own `Content-Type` stays honest — the same choice the
-reference Go OTLP receiver makes. The specification's literal wording ("the response body for all
-`HTTP 4xx` and `HTTP 5xx` responses MUST be a Protobuf-encoded `Status` message") carries no JSON
-exemption; mirroring is the reading that does not also violate the Content-Type rule.
-
-#### Partial success
-
-When records are dropped the receiver still returns `200`, but populates `partial_success` with
-`rejected_spans` / `rejected_log_records` and an English `error_message`. Per the specification,
-clients must not retry such a response.
-
-Counted as rejected:
-
-- Spans and logs dropped at the per-session caps (10,000 spans / 5,000 logs — see
- [streaming.md](streaming.md))
-- Records with no `trace_id`, which cannot be routed to a session
-
-Not counted as rejected:
-
-- Log records that are not `gen_ai.*` events. These are filtered by design: agentevals ingests
- GenAI-semconv telemetry, and an application instrumented with many libraries emits far more
- non-GenAI logs than GenAI ones. Reporting them would attach a permanent warning to every export
- with no action a user could take.
-- Log records buffered for orphan replay. Those are deferred, not rejected — they may still be
- attached to a session, or expire.
-
-### OTLP gRPC
+```bash
+export OTEL_EXPORTER_OTLP_ENDPOINT=http://localhost:4318
+# or, for gRPC
+export OTEL_EXPORTER_OTLP_ENDPOINT=http://localhost:4317
+export OTEL_EXPORTER_OTLP_PROTOCOL=grpc
+```
-Implements the standard `TraceService/Export` and `LogsService/Export` RPCs. Configuration:
+Trace and span ids must be valid hex (32 and 16 characters). Records with bad ids are rejected one by one.
-| Setting | Default |
-|---------|---------|
-| Max message size | 8 MB |
-| Max concurrent RPCs | 32 |
-| Compression | gzip |
-| TLS | off (insecure) |
+### Responses
-Dropped records are reported through `partial_success` exactly as over OTLP HTTP — see
-[Partial success](#partial-success) above.
+| Situation | Response |
+|---|---|
+| Everything accepted | `200`, no `partialSuccess` |
+| Some records refused for good (bad ids, a trace or session limit) | `200` with `partialSuccess` counts and a reason. Do not retry. |
+| Any record refused because the server is full (memory, session slots, log buffer) | `503` with `Retry-After` (gRPC `UNAVAILABLE`). Retry the whole export; records already stored are not stored twice. |
+| Body cannot be decoded | `400` |
+| Unsupported `Content-Type` or `Content-Encoding` | `415`. Use `compression: gzip` or `none`. |
+| Body over 64 MiB, compressed body over 8 MiB, or more than 32 gzip members | `413` / `400` |
-### Client configuration
+Error bodies are `google.rpc.Status` messages in the request's content type.
-For HTTP exporters:
+### Limits
-```bash
-export OTEL_EXPORTER_OTLP_ENDPOINT=http://localhost:4318
-```
-
-For gRPC exporters:
-
-```bash
-export OTEL_EXPORTER_OTLP_ENDPOINT=http://localhost:4317
-export OTEL_EXPORTER_OTLP_PROTOCOL=grpc
-```
+| Limit | Value |
+|---|---|
+| Spans per trace / per session | 10,000 / 50,000 |
+| Logs per trace / per session | 5,000 / 20,000 |
+| Traces per session | 1,000 |
+| Sessions | 100 (the oldest finished session is evicted first) |
+| Memory | 1 GiB of decoded telemetry (`AGENTEVALS_LIVE_MAX_BYTES`) |
+| Finished session kept for | 2 hours |
+| Logs that arrive before their spans | kept for 5 minutes |
-Traces and logs stream into agentevals automatically. See [examples/README.md](../examples/README.md) for zero-code setup instructions.
+A Collector sending large batches should cap batch size so a request stays under 64 MiB.
diff --git a/docs/streaming.md b/docs/streaming.md
deleted file mode 100644
index 52de3455..00000000
--- a/docs/streaming.md
+++ /dev/null
@@ -1,326 +0,0 @@
-# Live Streaming Dev Server
-
-The live streaming dev server enables real-time trace evaluation for agent development. Agents stream OpenTelemetry spans via WebSocket as they execute, and results appear instantly in both terminal and browser.
-
-## Quick Start
-
-### 1. Start the dev server
-
-```bash
-agentevals serve --dev --port 8001
-```
-
-This starts:
-- WebSocket server at `ws://localhost:8001/ws/traces`
-- API at `http://localhost:8001/api`
-- SSE endpoint at `http://localhost:8001/stream/ui-updates`
-
-### 2. Start the UI (in another terminal)
-
-```bash
-cd agentevals/ui
-npm run dev
-```
-
-Navigate to `http://localhost:5173` and select "I am developing an agent".
-
-### 3. Enable streaming in your agent code
-
-The recommended approach uses the async `enable_streaming` context manager:
-
-```python
-from agentevals.streaming import enable_streaming
-
-async with enable_streaming(
- ws_url="ws://localhost:8001/ws/traces",
- eval_set_id="my-eval-set",
-) as session_id:
- # Your agent code runs normally — all OTel spans stream automatically
- agent = Agent(name="my-agent")
- result = agent.invoke("Do something")
-```
-
-For more control over the streaming lifecycle, use `AgentEvalsStreamingProcessor` directly. See [examples/README.md](../examples/README.md) for instrumentation patterns tailored to different frameworks (LangChain, Strands, Google ADK).
-
-### 4. See results in real-time
-
-- **Terminal:** Session status prints when agent finishes
-- **Browser:** Live span tree builds as agent executes
-- **Evaluation:** Triggered from the UI after session completes
-
-## Architecture
-
-```
-Agent (any OTel-instrumented framework)
- ↓ WebSocket (OTLP/JSON spans + logs)
-agentevals dev server
- ↓ SSE (real-time updates)
-Browser UI
-```
-
-Agents emit OTel spans (and optionally logs for GenAI message content). The dev server receives them over WebSocket, incrementally extracts invocations, and pushes updates to the browser via Server-Sent Events.
-
-See [examples/README.md](../examples/README.md) for details on supported instrumentation approaches (OTel GenAI semantic conventions, Google ADK, etc.).
-
-## Key Features
-
-### OTLP/JSON Support
-
-Native OpenTelemetry format. The CLI auto-detects Jaeger vs OTLP from
-file contents, so `.json` and `.jsonl` exports from Tempo, Jaeger, or
-the OTel collector all work without a `--format` flag:
-
-```bash
-# Load any trace file directly; format is auto-detected
-agentevals run trace.otlp.json --eval-set eval.json
-```
-
-Pass `--format otlp-json` (or `jaeger-json`) only as an override when
-auto-detection fails on a non-standard export.
-
-### Real-time Span Streaming
-
-The `AgentEvalsStreamingProcessor` is an OTel `SpanProcessor` that streams spans over WebSocket as they complete:
-
-```python
-from agentevals.streaming.processor import AgentEvalsStreamingProcessor
-
-processor = AgentEvalsStreamingProcessor(
- ws_url="ws://localhost:8001/ws/traces",
- session_id="my-session",
- trace_id="abc123",
-)
-await processor.connect(eval_set_id="my-eval")
-
-# Register with your TracerProvider
-tracer_provider.add_span_processor(processor)
-
-# When done:
-await processor.shutdown_async()
-```
-
-For GenAI agents that emit message content as OTel Logs, use `AgentEvalsLogStreamingProcessor` alongside it — see the [langchain_agent example](../examples/langchain_agent/).
-
-### Session Lifecycle
-
-When a session ends (`session_end` message), the server:
-1. Enriches spans with log-based message content (if any)
-2. Extracts invocations (user/agent messages, tool calls, model info)
-3. Broadcasts `session_complete` to the browser UI via SSE
-4. Sends `session_complete` back to the agent via WebSocket
-
-Evaluation is triggered separately from the UI or API.
-
-## GenAI Message Content: Span Events vs. Logs
-
-agentevals supports two mechanisms for receiving GenAI message content (`gen_ai.input.messages`, `gen_ai.output.messages`):
-
-**Log records (recommended).** Instrumentation libraries like `opentelemetry-instrumentation-openai-v2` emit message content as OTel log records correlated with spans via trace context. The server merges these back into spans during session completion (see `log_enrichment.py`).
-
-**Span events (legacy, supported for backward compatibility).** Some frameworks (notably Strands with `OTEL_SEMCONV_STABILITY_OPT_IN=gen_ai_latest_experimental`) currently emit message content as span event attributes. The `AgentEvalsStreamingProcessor` promotes these attributes to span-level attributes so downstream converters see a uniform shape. This promotion happens in three places:
-
-- `streaming/processor.py` for live WebSocket spans
-- `api/otlp_routes.py` for OTLP HTTP reception
-- `loader/otlp.py` for loading OTLP JSON files
-
-The OTel community is [deprecating span events](https://opentelemetry.io/blog/2026/deprecating-span-events/) in favor of log-based events emitted via the Logs API. As frameworks migrate, the log-based path will become the standard. The span event promotion logic will remain for backward compatibility with older instrumentation versions.
-
-For a full overview of supported OTel conventions and migration guidance, see [otel-compatibility.md](./otel-compatibility.md).
-
-## WebSocket Protocol
-
-### Endpoint: `/ws/traces`
-
-#### Agent → Server Messages
-
-**Session start:**
-```json
-{
- "type": "session_start",
- "session_id": "session-abc123",
- "trace_id": "3e289017...",
- "eval_set_id": "my-eval",
- "metadata": {}
-}
-```
-
-**Span (OTLP/JSON format):**
-```json
-{
- "type": "span",
- "session_id": "session-abc123",
- "span": {
- "traceId": "3e289017...",
- "spanId": "1f9762ca...",
- "name": "chat gpt-4o",
- "startTimeUnixNano": "1771237534577907000",
- "endTimeUnixNano": "1771237535012345000",
- "attributes": [
- {"key": "gen_ai.request.model", "value": {"stringValue": "gpt-4o"}}
- ]
- }
-}
-```
-
-**Log (GenAI message content):**
-```json
-{
- "type": "log",
- "session_id": "session-abc123",
- "log": {
- "traceId": "3e289017...",
- "spanId": "1f9762ca...",
- "body": {"stringValue": "gen_ai.user.message"},
- "attributes": [
- {"key": "gen_ai.user.message", "value": {"stringValue": "{\"role\": \"user\", \"content\": \"Hello\"}"}}
- ]
- }
-}
-```
-
-**Session end:**
-```json
-{
- "type": "session_end",
- "session_id": "session-abc123"
-}
-```
-
-#### Server → Agent Messages
-
-**Session complete (with extracted invocations):**
-```json
-{
- "type": "session_complete",
- "invocations": [
- {
- "invocationId": "inv-1",
- "userText": "Roll a 20-sided die",
- "agentText": "I rolled a 20-sided die and got 13",
- "toolCalls": [{"name": "roll_die", "args": {"sides": 20}}],
- "modelInfo": {"model": "gpt-4o"}
- }
- ]
-}
-```
-
-**Error (limit exceeded):**
-```json
-{
- "type": "error",
- "message": "Session has reached maximum span limit (10000)"
-}
-```
-
-### SSE: `/stream/ui-updates`
-
-Real-time events for the browser UI:
-
-```javascript
-const eventSource = new EventSource('http://localhost:8001/stream/ui-updates');
-
-eventSource.onmessage = (event) => {
- const data = JSON.parse(event.data);
-
- switch (data.type) {
- case 'session_started':
- // New session with metadata
- break;
- case 'span_received':
- // New span — build trace tree incrementally
- break;
- case 'session_complete':
- // Session ended — invocations extracted
- break;
- }
-};
-```
-
-## Session Management
-
-- Sessions are stored **in-memory only** (no database)
-- Completed sessions expire after **2 hours** (configurable)
-- Maximum **100 sessions** kept at a time
-- Per-session limits: **10,000 spans** and **5,000 logs**
-
-Reaching a per-session limit is reported to the caller on every transport: WebSocket clients get an
-`error` message, and OTLP clients (HTTP and gRPC) get `partial_success` with `rejected_spans` /
-`rejected_log_records`. See [otel-compatibility.md](otel-compatibility.md#partial-success).
-
-## CLI Options
-
-```bash
-agentevals serve --dev \
- --port 8001 \
- --host 0.0.0.0 \
- --eval-sets ./eval_sets/ \
- --headless \
- -v
-```
-
-| Option | Default | Description |
-|--------|---------|-------------|
-| `--dev` | off | Enable WebSocket and live streaming |
-| `--port`, `-p` | 8001 | Server port |
-| `--host` | 0.0.0.0 | Host to bind |
-| `--eval-sets` | — | Directory with eval set JSON files to pre-load |
-| `--headless` | off | Run without browser (WebSocket only) |
-| `-v`, `--verbose` | off | Increase verbosity (`-v` for INFO, `-vv` for DEBUG) |
-
-## Development Workflow
-
-```bash
-# Terminal 1: Start dev server
-agentevals serve --dev --port 8001
-
-# Terminal 2: Start UI
-cd ui && npm run dev
-
-# Terminal 3: Run an example agent
-python examples/dice_agent/main.py # Google ADK
-python examples/langchain_agent/main.py # LangChain + GenAI semconv
-python examples/strands_agent/main.py # Strands + GenAI semconv
-```
-
-**Result:**
-- Agent executes normally
-- Spans (and logs) stream to server in real-time
-- UI shows live trace tree building with incremental invocation extraction
-- Evaluation can be triggered from the UI after session completes
-- Compare multiple sessions side-by-side
-
-See [examples/README.md](../examples/README.md) for instrumentation setup for each framework.
-
-## Dependencies
-
-Streaming support requires the `streaming` extras:
-
-```bash
-pip install "agentevals[streaming]"
-```
-
-This installs `opentelemetry-sdk>=1.20.0`. Agent code also needs `websockets` for the WebSocket connection.
-
-## Key Files
-
-### Backend
-- `src/agentevals/streaming/processor.py` — OTel `SpanProcessor` + `LogProcessor` for WebSocket streaming
-- `src/agentevals/streaming/ws_server.py` — WebSocket handler + session management (`StreamingTraceManager`)
-- `src/agentevals/streaming/session.py` — Session tracking (`TraceSession`)
-- `src/agentevals/streaming/incremental_processor.py` — Incremental invocation extraction from spans/logs
-- `src/agentevals/streaming/__init__.py` — `enable_streaming()` convenience function
-- `src/agentevals/loader/otlp.py` — OTLP/JSON trace loader
-- `src/agentevals/utils/log_enrichment.py` — Merges GenAI log content back into spans
-
-### Frontend
-- `ui/src/components/streaming/LiveStreamingView.tsx` — Live sessions UI
-- `ui/src/components/streaming/SessionCard.tsx` — Individual session display
-- `ui/src/components/streaming/LiveConversationPanel.tsx` — Real-time conversation view
-
-## Compatibility
-
-All existing workflows continue to work:
-- Trace files (Jaeger or OTLP, including Tempo exports) auto-detect by
- content: `agentevals run trace.json --eval-set ...`
-- Pass `--format` only to override detection on non-standard exports.
-- Web UI upload flow unchanged.
diff --git a/examples/README.md b/examples/README.md
index 6c81cef3..1fad62ec 100644
--- a/examples/README.md
+++ b/examples/README.md
@@ -84,168 +84,55 @@ To skip streaming when the dev server isn't running, set `streaming=False`:
app = AgentEvals(streaming=os.getenv("AGENTEVALS_STREAM", "1") == "1")
```
-When disabled, `session()` and `session_async()` become no-ops and your agent runs normally without any WebSocket connection or OTel setup.
+When disabled, `session()` and `session_async()` do nothing and your agent runs without exporting anything to agentevals.
-Requires the `[streaming]` extra: `pip install "agentevals[streaming]"`. See [sdk_example/](./sdk_example/) for complete working examples.
+See [sdk_example/](./sdk_example/) for complete working examples.
-## Supported Instrumentation Formats
+## What agentevals reads
-Trace format is **auto-detected**. Agents don't need to declare which format they use.
-
-- **OTel GenAI Semantic Conventions** (recommended for new agents). Standard `gen_ai.*` span attributes defined by the [OpenTelemetry GenAI working group](https://opentelemetry.io/docs/specs/semconv/gen-ai/). Framework-agnostic and interoperable. Works with LangChain, Strands, and any framework that supports the conventions.
-
-- **Framework-Native OTel Tracing**. Some frameworks (like Google ADK) emit their own proprietary span attributes. agentevals has dedicated converters for these formats.
-
-Detection checks for `gen_ai.request.model` / `gen_ai.input.messages` (GenAI semconv) or `otel.scope.name == "gcp.vertex.agent"` (ADK).
+Standard OpenTelemetry GenAI telemetry. Message content can be on span attributes, span events or log events; agentevals reads all three. Google ADK's own `gcp.vertex.agent.*` attributes are read as well. Per framework settings (content capture variables and so on) are in [docs/otel-compatibility.md](../docs/otel-compatibility.md#producer-setup).
## Example Agents
-| Example | Framework | LLM Provider | Instrumentation | Content Delivery |
-|---------|-----------|-------------|-----------------|-----------------|
-| [zero-code-examples/langchain/](./zero-code-examples/langchain/) | LangChain | OpenAI | GenAI semconv (logs) | Standard OTLP export |
-| [zero-code-examples/ollama/](./zero-code-examples/ollama/) | LangChain | Ollama | GenAI semconv (logs) | Standard OTLP export |
-| [zero-code-examples/strands/](./zero-code-examples/strands/) | Strands | OpenAI | GenAI semconv (events*) | Standard OTLP export |
-| [zero-code-examples/adk/](./zero-code-examples/adk/) | Google ADK | Gemini | ADK built-in | Standard OTLP export |
-| [zero-code-examples/pydantic-ai/](./zero-code-examples/pydantic-ai/) | Pydantic AI | OpenAI | GenAI semconv (span attrs) | Standard OTLP export |
-| [langchain_agent](./langchain_agent/) | LangChain | OpenAI | GenAI semconv (logs) | SDK WebSocket |
-| [strands_agent](./strands_agent/) | Strands | OpenAI | GenAI semconv (events*) | SDK WebSocket |
-| [dice_agent](./dice_agent/) | Google ADK | Gemini | ADK built-in | SDK WebSocket |
-
-*\*Span events are [being deprecated](https://opentelemetry.io/blog/2026/deprecating-span-events/) in favor of log-based events. agentevals supports both. See [docs/otel-compatibility.md](../docs/otel-compatibility.md) for details.*
+| Example | Framework | LLM Provider | How it sends telemetry |
+|---------|-----------|-------------|------------------------|
+| [zero-code-examples/langchain/](./zero-code-examples/langchain/) | LangChain | OpenAI | Standard OTLP export (traces and logs) |
+| [zero-code-examples/ollama/](./zero-code-examples/ollama/) | LangChain | Ollama | Standard OTLP export (traces and logs) |
+| [zero-code-examples/strands/](./zero-code-examples/strands/) | Strands | OpenAI | Standard OTLP export |
+| [zero-code-examples/adk/](./zero-code-examples/adk/) | Google ADK | Gemini | Standard OTLP export |
+| [zero-code-examples/openai-agents/](./zero-code-examples/openai-agents/) | OpenAI Agents SDK | OpenAI | Standard OTLP export |
+| [zero-code-examples/pydantic-ai/](./zero-code-examples/pydantic-ai/) | Pydantic AI | OpenAI | Standard OTLP export |
+| [langchain_agent](./langchain_agent/) | LangChain | OpenAI | AgentEvals SDK session |
+| [strands_agent](./strands_agent/) | Strands | OpenAI | AgentEvals SDK session |
+| [dice_agent](./dice_agent/) | Google ADK | Gemini | AgentEvals SDK session |
-The zero-code and SDK examples implement the same toy agent (dice rolling + prime checking) so you can compare the two approaches directly.
+All of them implement the same toy agent (dice rolling and prime checking), so you can compare the approaches directly.
## Kubernetes
| Example | Description |
|---------|-------------|
-| [kubernetes/](./kubernetes/) | Deploy agentevals with kagent on Kubernetes using native OTLP gRPC ingestion (or optionally an OTel Collector). Includes a walkthrough for comparing two kagent agents (different models) and evaluating them with tool trajectory and response match scores. |
+| [kubernetes/](./kubernetes/) | Run agentevals and an OTel Collector next to kagent, and score a Go ADK agent against a Claude Code harness agent. Includes a Collector workaround for Claude Code spans and the evaluation results coming back as OTel events. |
## Custom result sinks
-Plugins can deliver run results (partial metrics, final summary, errors) to arbitrary backends alongside the database. Install a package that declares `[project.entry-points."agentevals.sinks"]`, restart agentevals, then reference the plugin’s `kind` in `spec.sinks` on `POST /api/runs`.
+Plugins can deliver run results (partial metrics, final summary, errors) to arbitrary backends alongside the database. Install a package that declares `[project.entry-points."agentevals.sinks"]`, restart agentevals, then reference the plugin's `kind` in `spec.sinks` on `POST /api/runs`.
See [custom_sink/README.md](./custom_sink/README.md) for a minimal setuptools plugin and configuration examples.
-## Advanced: GenAI Semantic Convention Patterns
-
-> [!TIP]
-> The sections below apply to the **SDK WebSocket** examples (`langchain_agent`, `strands_agent`, `dice_agent`).
-> For the zero-code OTLP examples, none of this manual wiring is needed.
-
-The OTel GenAI semantic conventions define _what_ data is captured (`gen_ai.request.model`, `gen_ai.input.messages`, `gen_ai.output.messages`, token counts, etc.) but allow flexibility in _how_ message content is delivered. agentevals supports both approaches:
-
-### Logs-Based Content ([langchain_agent](./langchain_agent/))
-
-Used by auto-instrumentation libraries like [`opentelemetry-instrumentation-openai-v2`](https://pypi.org/project/opentelemetry-instrumentation-openai-v2/). Spans carry metadata (model, tokens, finish reasons), while message content is emitted as separate OTel Log Records.
-
-This pattern requires **both** a `TracerProvider` and a `LoggerProvider`, with matching processors:
-
-```python
-os.environ["OTEL_INSTRUMENTATION_GENAI_CAPTURE_MESSAGE_CONTENT"] = "true"
-
-tracer_provider = TracerProvider()
-logger_provider = LoggerProvider()
-
-processor = AgentEvalsStreamingProcessor(ws_url=..., session_id=..., trace_id=...)
-tracer_provider.add_span_processor(processor)
-
-log_processor = AgentEvalsLogStreamingProcessor(processor) # shares WebSocket connection
-logger_provider.add_log_record_processor(log_processor)
-
-OpenAIInstrumentor().instrument() # auto-instruments the OpenAI SDK
-```
-
-Without `OTEL_INSTRUMENTATION_GENAI_CAPTURE_MESSAGE_CONTENT=true`, only metadata is captured and no conversation text will appear.
-
-See [langchain_agent/README.md](./langchain_agent/README.md) for the full walkthrough.
-
-### Events-Based Content ([strands_agent](./strands_agent/))
-
-> [!NOTE]
-> The OTel community is [deprecating span events](https://opentelemetry.io/blog/2026/deprecating-span-events/) in favor of log-based events emitted via the Logs API. Frameworks currently using span events (like Strands) are expected to migrate to log-based events in future versions. agentevals supports both patterns and will continue to handle span events for backward compatibility.
-
-Used by frameworks that emit message content as **span events** rather than separate log records. The `AgentEvalsStreamingProcessor` automatically promotes `gen_ai.input.messages` and `gen_ai.output.messages` from event attributes to span attributes, so downstream processing sees a uniform shape.
-
-This pattern needs only a `TracerProvider`, no `LoggerProvider` or log processor:
-
-```python
-os.environ["OTEL_SEMCONV_STABILITY_OPT_IN"] = "gen_ai_latest_experimental"
-
-telemetry = StrandsTelemetry() # creates TracerProvider internally
-processor = AgentEvalsStreamingProcessor(ws_url=..., session_id=..., trace_id=...)
-telemetry.tracer_provider.add_span_processor(processor)
-```
-
-### Which Pattern Should I Use?
-
-- **For new instrumentation, prefer the logs-based pattern.** The OTel community recommends emitting events as log records rather than span events going forward.
-- **Check your framework/library docs first.** They will tell you whether message content is emitted as logs or span events.
-- If your instrumentation library requires a `LoggerProvider` (like `opentelemetry-instrumentation-openai-v2`), use the **logs-based** pattern.
-- If your framework currently emits GenAI span events (like Strands with `StrandsTelemetry`), the **events-based** pattern works today. When the framework migrates to log-based events, switch to the logs-based pattern.
-- If you're using **Google ADK**, skip GenAI semconv entirely. See the next section.
-
-For a detailed overview of OTel compatibility and the ongoing migration, see [docs/otel-compatibility.md](../docs/otel-compatibility.md).
-
-## Framework-Native Tracing (Google ADK)
-
-Google ADK instruments agents automatically under the `gcp.vertex.agent` OTel scope. It emits proprietary attributes (`gcp.vertex.agent.llm_request`, `gcp.vertex.agent.llm_response`, etc.) directly on spans. agentevals has a dedicated converter for this format.
-
-No GenAI semconv environment variables or log providers are needed:
-
-```python
-provider = TracerProvider()
-trace.set_tracer_provider(provider)
-
-processor = AgentEvalsStreamingProcessor(ws_url=..., session_id=..., trace_id=...)
-provider.add_span_processor(processor)
-# ADK agents automatically emit spans through the global TracerProvider
-```
-
-See [dice_agent/README.md](./dice_agent/README.md) for a complete example.
-
## Running the Examples
-### 1. Start the Dev Server
-
-```bash
-agentevals serve --dev
-```
-
-### 2. Start the UI (optional)
-
```bash
-cd ui && npm run dev
-# Open http://localhost:5173, select "I am developing an agent"
-```
-
-### 3. Run an Example Agent
+agentevals serve --dev # terminal 1
+cd ui && npm run dev # terminal 2, then open http://localhost:5173
-```bash
-# Zero-code OTLP (recommended):
+# terminal 3, any of:
python examples/zero-code-examples/langchain/run.py
-python examples/zero-code-examples/ollama/run.py
-python examples/zero-code-examples/strands/run.py
python examples/zero-code-examples/adk/run.py
-python examples/zero-code-examples/pydantic-ai/run.py
-
-# SDK examples:
python examples/sdk_example/context_manager_example.py
-python examples/sdk_example/decorator_example.py
-python examples/sdk_example/async_example.py
-
-# Manual OTel setup examples:
python examples/dice_agent/main.py
-python examples/langchain_agent/main.py
-python examples/strands_agent/main.py
```
-Traces stream to the dev server in real-time. Evaluation runs automatically when the session completes.
-
-See each example's README for prerequisites and detailed instructions:
-- [zero-code-examples/](./zero-code-examples/) (LangChain, Strands, ADK, OpenAI Agents, Pydantic AI — standard OTLP)
-- [dice_agent/README.md](./dice_agent/README.md) (Google ADK + Gemini)
-- [langchain_agent/README.md](./langchain_agent/README.md) (LangChain + OpenAI, SDK)
-- [strands_agent/](./strands_agent/) (Strands + OpenAI, SDK)
+Each zero code example sets its own `agentevals.session_name` and a per process `service.instance.id`, so running it twice gives two sessions. The framework SDKs come from the `e2e` dependency group: `uv sync --all-extras --group e2e`.
-For details on the WebSocket streaming protocol, see [docs/streaming.md](../docs/streaming.md).
+See [docs/otel-compatibility.md](../docs/otel-compatibility.md#sessions) for how sessions work and how to evaluate them.
diff --git a/examples/dice_agent/main.py b/examples/dice_agent/main.py
index e8583d8b..33236d89 100644
--- a/examples/dice_agent/main.py
+++ b/examples/dice_agent/main.py
@@ -1,13 +1,13 @@
"""Main script for dice_agent with live streaming to agentevals.
This example demonstrates:
-1. Setting up OpenTelemetry with agentevals streaming
+1. Streaming the agent's OpenTelemetry spans to agentevals with an AgentEvals session
2. Running an ADK agent with the Runner API
3. Getting real-time evaluation feedback
Prerequisites:
1. Start agentevals dev server in another terminal:
- $ agentevals serve --dev --port 8001
+ $ agentevals serve --dev
2. Start the UI (optional, to see live visualization):
$ cd agentevals/ui && npm run dev
@@ -25,6 +25,7 @@
import asyncio
import os
+from datetime import datetime
from agent import dice_agent
from dotenv import load_dotenv
@@ -33,6 +34,8 @@
from opentelemetry import trace
from opentelemetry.sdk.trace import TracerProvider
+from agentevals import AgentEvals
+
load_dotenv(override=True)
@@ -52,86 +55,57 @@ async def main():
provider = TracerProvider()
trace.set_tracer_provider(provider)
- try:
- from datetime import datetime
-
- from agentevals.streaming.processor import AgentEvalsStreamingProcessor
-
- timestamp = datetime.now().strftime("%Y%m%d-%H%M%S-%f")[:21]
- session_id = f"dice-agent-{dice_agent.model}-{timestamp}"
- processor = AgentEvalsStreamingProcessor(
- ws_url="ws://localhost:8001/ws/traces",
- session_id=session_id,
- trace_id="dice-" + os.urandom(8).hex(),
- )
+ timestamp = datetime.now().strftime("%Y%m%d-%H%M%S-%f")[:21]
+ session_name = f"dice-agent-{dice_agent.model}-{timestamp}"
+ app = AgentEvals(auto_instrument=False)
- await processor.connect(
+ try:
+ async with app.session_async(
eval_set_id="dice_agent_eval",
+ session_name=session_name,
metadata={"model": dice_agent.model, "agent": dice_agent.name},
- )
-
- provider.add_span_processor(processor)
-
- print("✓ Connected to agentevals dev server")
- print(f" Session: {session_id}")
- print(f" Model: {dice_agent.model}")
- print(" View live: http://localhost:5173")
- print()
+ tracer_provider=provider,
+ ):
+ print("✓ Streaming to the agentevals dev server")
+ print(f" Session: {session_name}")
+ print(f" Model: {dice_agent.model}")
+ print(" View live: http://localhost:5173")
+ print()
- app_name = "dice_agent_app"
- user_id = "demo_user"
+ app_name = "dice_agent_app"
+ user_id = "demo_user"
- runner = InMemoryRunner(agent=dice_agent, app_name=app_name)
- session = await runner.session_service.create_session(app_name=app_name, user_id=user_id)
+ runner = InMemoryRunner(agent=dice_agent, app_name=app_name)
+ session = await runner.session_service.create_session(app_name=app_name, user_id=user_id)
- test_queries = [
- "Hi! Can you help me?",
- "Roll a 20-sided die for me",
- "Is the number you rolled prime?",
- ]
+ test_queries = [
+ "Hi! Can you help me?",
+ "Roll a 20-sided die for me",
+ "Is the number you rolled prime?",
+ ]
- for i, query in enumerate(test_queries, 1):
- print(f"\n[{i}/{len(test_queries)}] User: {query}")
+ for i, query in enumerate(test_queries, 1):
+ print(f"\n[{i}/{len(test_queries)}] User: {query}")
- content = types.Content(role="user", parts=[types.Part.from_text(text=query)])
+ content = types.Content(role="user", parts=[types.Part.from_text(text=query)])
- agent_response = ""
- async for event in runner.run_async(user_id=user_id, session_id=session.id, new_message=content):
- if event.content.parts and event.content.parts[0].text:
- agent_response = event.content.parts[0].text
+ agent_response = ""
+ async for event in runner.run_async(user_id=user_id, session_id=session.id, new_message=content):
+ if event.content.parts and event.content.parts[0].text:
+ agent_response = event.content.parts[0].text
- print(f" Agent: {agent_response}")
+ print(f" Agent: {agent_response}")
print()
print("✓ Agent execution complete")
print(" View in UI: http://localhost:5173")
print()
- await processor.shutdown_async()
-
- except ImportError:
- print("❌ agentevals streaming not installed")
- print(" Install with: pip install -e .")
- print()
- print("Running agent WITHOUT streaming:")
- print()
-
- app_name = "dice_agent_app"
- user_id = "demo_user"
- runner = InMemoryRunner(agent=dice_agent, app_name=app_name)
- session = await runner.session_service.create_session(app_name=app_name, user_id=user_id)
-
- content = types.Content(role="user", parts=[types.Part.from_text(text="Roll a 6-sided die")])
-
- async for event in runner.run_async(user_id=user_id, session_id=session.id, new_message=content):
- if event.content.parts and event.content.parts[0].text:
- print(f"Agent: {event.content.parts[0].text}")
-
- except Exception as e:
- print(f"❌ Error: {e}")
+ except ConnectionError as e:
+ print(f"❌ {e}")
print()
print("Make sure agentevals dev server is running:")
- print(" $ agentevals serve --dev --port 8001")
+ print(" $ agentevals serve --dev")
print()
diff --git a/examples/dice_agent/test_streaming.py b/examples/dice_agent/test_streaming.py
index 28cbc549..666f7fe8 100644
--- a/examples/dice_agent/test_streaming.py
+++ b/examples/dice_agent/test_streaming.py
@@ -1,62 +1,43 @@
-"""Quick test to verify streaming setup works."""
+"""Quick check that this machine can stream to the agentevals dev server.
+
+Opens an AgentEvals session, records one span inside it and closes the session, which flushes
+the span to the OTLP receiver. The session then shows up in the UI.
+
+Prerequisites:
+ $ agentevals serve --dev
+
+Usage:
+ $ python examples/dice_agent/test_streaming.py
+"""
import asyncio
-import os
from opentelemetry import trace
from opentelemetry.sdk.trace import TracerProvider
+from agentevals import AgentEvals
-async def test_streaming():
- """Test that streaming processor connects and shuts down cleanly."""
+async def test_streaming():
provider = TracerProvider()
trace.set_tracer_provider(provider)
+ app = AgentEvals(auto_instrument=False)
try:
- from agentevals.streaming.processor import AgentEvalsStreamingProcessor
-
- print("✓ Imported streaming processor")
-
- processor = AgentEvalsStreamingProcessor(
- ws_url="ws://localhost:8001/ws/traces",
- session_id="test-session",
- trace_id="test-trace-123",
- )
-
- print("✓ Created processor")
-
- await processor.connect(
+ async with app.session_async(
eval_set_id="test-eval",
+ session_name="streaming-check",
metadata={"test": True},
- )
-
- print("✓ Connected to server")
-
- provider.add_span_processor(processor)
-
- print("✓ Added processor to provider")
-
- tracer = trace.get_tracer("test")
- with tracer.start_as_current_span("test_span"):
- print("✓ Created test span")
-
- print("✓ Span sent")
-
- await processor.shutdown_async()
-
- print("✓ Clean shutdown")
- print()
- print("All tests passed! Streaming is working correctly.")
-
- except ImportError:
- print("❌ agentevals not installed")
- print(" Run: pip install -e .")
- except Exception as e:
- print(f"❌ Error: {e}")
+ tracer_provider=provider,
+ ):
+ print("✓ Reached the OTLP receiver")
+ with provider.get_tracer("streaming-check").start_as_current_span("test_span"):
+ print("✓ Created test span")
+ print("✓ Session flushed")
print()
- print("Make sure dev server is running:")
- print(" agentevals serve --dev --port 8001")
+ print("Streaming works. Look for the 'streaming-check' session in the UI.")
+ except ConnectionError as exc:
+ print(f"❌ {exc}")
if __name__ == "__main__":
diff --git a/examples/kubernetes/README.md b/examples/kubernetes/README.md
index 6f68e1e9..253f8844 100644
--- a/examples/kubernetes/README.md
+++ b/examples/kubernetes/README.md
@@ -1,256 +1,151 @@
-# Kubernetes: Evaluating kagent with agentevals
+# Evaluating kagent agents on Kubernetes
-Run agentevals alongside [kagent](https://github.com/kagent-dev/kagent) on Kubernetes to evaluate AI agent conversations in real time. This example deploys three components:
-
-1. **agentevals** receives OTLP traces over HTTP and serves the evaluation UI
-2. **OTel Collector** Optional, useful when you want centralized telemetry
-controls.
-3. **kagent** provides Kubernetes-native AI agents with built-in OTel instrumentation (gRPC export only)
+Let's run two [kagent](https://github.com/kagent-dev/kagent) agents with the same prompt and tools, one on the Go ADK runtime and one on the Claude Code harness, and score them with agentevals. Telemetry goes through a Collector, which also prints the scores agentevals sends back.
```
-kagent (gRPC :4317) --> OTel Collector( optional ) --> agentevals (gRPC :4317 / HTTP :4318)
- |
- UI on :8001
+kagent agents --> OTel Collector --> agentevals (UI on :8001)
+ ^ |
+ +---- scores -----+
```
-## Prerequisites
+Tested with kagent main at `46fdd3d7` (chart `v1.0.0-alpha3-82`, `v1alpha3` agents on Substrate), Claude Code 2.1.285, Collector contrib 0.162.0, and `claude-haiku-4-5` for both agents.
-- A running Kubernetes cluster (kind, minikube, EKS, GKE, etc.)
-- `helm` v3 installed
-- `kubectl` configured for your cluster
-- An OpenAI API key (`OPENAI_API_KEY`)
+## Set it up
-## Deploy
+You need a cluster with kagent 1.0 already running.
-### 1. agentevals
+Install agentevals and the Collector:
```bash
-helm install agentevals oci://ghcr.io/agentevals-dev/agentevals/helm/agentevals
+kubectl create namespace agentevals
+kubectl apply -f otel-collector.yaml
+helm install agentevals oci://ghcr.io/agentevals-dev/agentevals/helm/agentevals \
+ -n agentevals -f agentevals-values.yaml --wait
```
-This creates a single pod exposing:
-
-| Port | Purpose |
-|------|---------|
-| 8001 | Web UI and API |
-| 4317 | OTLP gRPC receiver (traces and logs) |
-| 4318 | OTLP HTTP receiver (traces and logs) |
-| 8080 | MCP (Streamable HTTP) |
-
-### 2. OTel Collector (optional)
-
-Native gRPC ingestion in agentevals is sufficient for most setups, but an
-intermediate collector is still useful when you want centralized telemetry
-controls:
-
-- traffic shaping (batching, retries, backpressure)
-- filtering or redaction before data reaches agentevals
-- routing/fan-out to additional backends
-- protocol translation for mixed clients
+Point kagent at the Collector:
```bash
-helm repo add open-telemetry https://open-telemetry.github.io/opentelemetry-helm-charts
-helm repo update
-
-helm upgrade --install otel-collector open-telemetry/opentelemetry-collector \
- --namespace kagent --create-namespace \
- --set mode=deployment \
- --set replicaCount=1 \
- --set image.repository=otel/opentelemetry-collector \
- --set ports.otlp.enabled=true \
- --set ports.otlp-http.enabled=false \
- --set config.exporters.otlp.endpoint="agentevals.default.svc.cluster.local:4317" \
- --set config.exporters.otlp.compression="gzip" \
- --set config.service.pipelines.traces.receivers[0]=otlp \
- --set config.service.pipelines.traces.exporters[0]=otlp \
- --set config.service.pipelines.logs.receivers[0]=otlp \
- --set config.service.pipelines.logs.exporters[0]=otlp
+helm upgrade kagent oci://ghcr.io/kagent-dev/kagent/helm/kagent -n kagent --reuse-values \
+ --set otel.exporter.otlp.endpoint=http://otel-collector.agentevals.svc.cluster.local:4317 \
+ --set otel.traces.enabled=true --set otel.logs.enabled=true \
+ --set otel.capture.messageContent=true --wait
```
-> **Note:** If you deployed agentevals in a namespace other than `default`, update the `endpoint` value accordingly: `http://agentevals..svc.cluster.local:4317`.
-
-### 3. kagent
+Heads up: `messageContent` puts prompts and responses on spans. agentevals needs them, but they can be sensitive.
-Install the CRDs first, then the kagent operator with OTel tracing enabled:
+Create the agents, using the images of your kagent release:
```bash
-helm install kagent-crds oci://ghcr.io/kagent-dev/kagent/helm/kagent-crds \
- --namespace kagent \
- --create-namespace
-
-helm upgrade --install kagent oci://ghcr.io/kagent-dev/kagent/helm/kagent \
- --namespace kagent \
- --set providers.default=openAI \
- --set providers.openAI.apiKey=$OPENAI_API_KEY \
- --set agents.kgateway-agent.enabled=false \
- --set agents.istio-agent.enabled=false \
- --set agents.promql-agent.enabled=false \
- --set agents.observability-agent.enabled=false \
- --set agents.argo-rollouts-agent.enabled=false \
- --set agents.cilium-policy-agent.enabled=false \
- --set agents.cilium-manager-agent.enabled=false \
- --set agents.cilium-debug-agent.enabled=false \
- --set otel.tracing.enabled=true \
- --set otel.tracing.exporter.otlp.endpoint="otel-collector-opentelemetry-collector.kagent.svc.cluster.local:4317" \
- --set otel.tracing.exporter.otlp.insecure=true
+export KAGENT_ADK_GO_IMAGE= KAGENT_CLAUDE_IMAGE=
+envsubst < agents.yaml | kubectl apply -f -
```
-This installs kagent with only the default Helm agent (`helm-agent`) and the K8s troubleshooter enabled, and points its OTel exporter at the Collector.
+kagent bakes the telemetry settings into each agent revision, so wait until `DESIRED` and `LATEST` match before chatting:
-> **Note:** If you are not running an OTel Collector, point `otel.tracing.exporter.otlp.endpoint` directly to the agentevals OTLP gRPC endpoint instead: `agentevals.default.svc.cluster.local:4317`.
+```bash
+kubectl get agents -n kagent -o custom-columns=NAME:.metadata.name,DESIRED:.status.desiredRevision,LATEST:.status.latestSuccessfulRevision
+```
-### Verify the deployment
+## Chat with both agents
```bash
-kubectl get pods -A -l 'app.kubernetes.io/name in (agentevals, kagent, opentelemetry-collector)'
+kubectl port-forward -n kagent svc/kagent-ui 8080:8080
+kubectl port-forward -n agentevals svc/agentevals 8001:8001
```
-All pods should be `Running` before continuing.
-
-## Walkthrough: Comparing models with kagent and agentevals
+Open the kagent UI at http://localhost:8080. For `adk-go-test`, and then `claude-test`, start a new chat and send:
-This walkthrough shows how to evaluate two kagent agents side by side: the default Helm agent running `gpt-4.1-mini` and a new agent running `gpt-5`. You will chat with both agents, watch their traces stream into agentevals, select the better session as the evaluation baseline, and score both on tool trajectory and response match.
+1. *Use your tools to list the namespaces in this cluster, then tell me how many pods are running in the kagent namespace. Answer in two short sentences.*
+2. *Now use your tools to list the services in the agentevals namespace. One sentence.*
-### Step 1. Access the UIs
+Use a new chat after the agents got their new revision. Older chats stay on the old one and send nothing.
-Port-forward both services to your local machine:
+Now open agentevals at http://localhost:8001 and click **Local Development** in the sidebar. Each chat shows up as one session with two turns, and is marked complete a few seconds after the last answer. If the page stops loading after agentevals restarts, restart its port forward.
-```bash
-# Terminal 1: agentevals UI
-kubectl port-forward svc/agentevals 8001:8001
+## Score them
-# Terminal 2: kagent UI
-kubectl port-forward -n kagent svc/kagent 8083:8083
-```
+The idea: pick one session you're happy with as the golden run, and agentevals scores every other session turn by turn against it.
-Open **http://localhost:8083** for the kagent UI and **http://localhost:8001** for the agentevals UI.
+1. On the `adk-go-test` session card, click **Set as EvalSet**. Its turns become the expected tool calls and answers.
+2. Click **Continue to Evaluation**.
+3. Pick the metrics and hit **Run Evaluation**:
+ * `tool_trajectory_avg_score` checks that each turn called the same tools with the same arguments. Set the match type to `ANY_ORDER` if the order doesn't matter.
+ * `response_match_score` compares each answer with the golden one (ROUGE 1 text overlap).
-### Step 2. Create a GPT-5 agent
+Clicking a session in the results shows each turn's expected and actual tool calls side by side.
-kagent ships with a default `helm-agent` configured to use `gpt-4.1-mini`. Create a second agent that uses `gpt-5` so you can compare the two.
+What we got from one run:
-**Option A: via the kagent UI**
+| Session | Trajectory | Response match |
+|---|---|---|
+| Another `adk-go-test` chat | 1.0 | 0.93 |
+| `claude-test` | 0.0 | 0.64 |
-1. Open http://localhost:8083
-2. Navigate to the Agents page
-3. Click **Create Agent**
-4. Copy the configuration from the existing `helm-agent` (same system prompt, same tools)
-5. Change the model to `gpt-5`
-6. Name it `helm-agent-gpt5`
-7. Save
+The second Go ADK chat made the same calls, so its trajectory matches and the answers are close. Claude Code fails the trajectory because its tool calls come without arguments (see below) and it uses extra tools like `ToolSearch` and `Bash`. To track Claude Code, use a Claude Code session as its golden run.
-**Option B: via a CRD**
+## Get the results as OTel events
-Apply the following manifest (adjust the system prompt if needed):
+agentevals can send every score as a `gen_ai.evaluation.result` log event, so it ends up next to the agent's traces in your observability backend. That's already on here, through `agentevals-values.yaml`:
```yaml
-apiVersion: kagent.dev/v1alpha1
-kind: Agent
-metadata:
- name: helm-agent-gpt5
- namespace: kagent
-spec:
- description: "Helm agent (GPT-5) for model comparison"
- modelConfig:
- model: gpt-5
- apiKeySecretRef:
- name: kagent-openai
- key: OPENAI_API_KEY
- systemPrompt: |
- You are a Kubernetes Helm expert. You help users manage Helm charts,
- releases, and repositories. Use your tools to inspect and manage
- Helm resources in the cluster.
- tools:
- - name: helm-list
- - name: helm-status
- - name: helm-get-values
- - name: helm-history
+env:
+ - name: AGENTEVALS_EVALUATION_EVENTS
+ value: "true"
+ - name: OTEL_EXPORTER_OTLP_ENDPOINT
+ value: http://otel-collector.agentevals.svc.cluster.local:4318
+ - name: OTEL_SERVICE_NAME
+ value: agentevals
```
+The Collector prints them with its `debug` exporter. After a run, check:
+
```bash
-kubectl apply -f helm-agent-gpt5.yaml
+kubectl logs -n agentevals deploy/otel-collector | grep -A12 "EventName: gen_ai.evaluation.result"
```
-### Step 3. Open agentevals Live view
-
-1. Go to http://localhost:8001
-2. Click **Live** in the sidebar to open the live streaming view
-3. Leave this tab open. Sessions will appear as traces arrive.
-
-### Step 4. Chat with both agents
+You get one event per turn and metric, like this one:
-Switch to the kagent UI (http://localhost:8083) and have the same conversation with each agent. For example:
-
-**With `helm-agent` (gpt-4.1-mini):**
-
-1. Select `helm-agent` from the agent list
-2. Start a new conversation
-3. Ask: *"List all Helm releases across all namespaces and tell me which ones have pending upgrades"*
-4. Follow up: *"Show me the values for the agentevals release"*
-
-**With `helm-agent-gpt5` (gpt-5):**
-
-1. Select `helm-agent-gpt5` from the agent list
-2. Start a new conversation
-3. Ask the same questions in the same order
-
-### Step 5. Watch traces in agentevals
-
-Switch back to the agentevals Live view at http://localhost:8001. You will see two sessions appear, one for each conversation. Each session shows:
-
-- **Status** transitioning from ACTIVE to COMPLETED as the conversation ends
-- **Span count** incrementing in real time as the agent makes LLM calls and tool invocations
-- **Model name** visible in the session metadata
-
-### Step 6. Select the GPT-5 session as the eval set
-
-Once both sessions are complete:
-
-1. Click on the `helm-agent-gpt5` session card to open its trace details
-2. Review the conversation: check that it called the right tools and produced correct responses
-3. Click **Use as Eval Set** to mark this session as the evaluation baseline
-4. Give it a name like `helm-agent-comparison`
-
-This captures the GPT-5 session's tool trajectory and final responses as the golden reference.
-
-
+```
+EventName: gen_ai.evaluation.result
+Attributes:
+ -> gen_ai.evaluation.name: Str(tool_trajectory_avg_score)
+ -> gen_ai.evaluation.score.value: Double(1)
+ -> gen_ai.evaluation.score.label: Str(pass)
+ -> gen_ai.agent.name: Str(adk_go_test)
+ -> gen_ai.conversation.id: Str(01a11b1c-41b6-794d-b0be-65a187d1fbcc)
+ -> agentevals.evaluator.type: Str(deterministic)
+ -> agentevals.eval_set.id: Str(manual-1)
+Trace ID: bf5aed954bb31b9234b2a29b14224354
+Span ID: 0b95fefded63d107
+```
-### Step 7. Evaluate both sessions
+The trace and span id point at the turn's `invoke_agent` span, so your backend shows the score on the exact turn it belongs to. `gen_ai.conversation.id` is the kagent chat id, which is also the session id in agentevals.
-1. Go back to the sessions list
-2. Select both sessions (the `gpt-4.1-mini` session and the `gpt-5` session)
-3. Click **Evaluate**
-4. Select the `helm-agent-comparison` eval set
-5. Choose the evaluators:
- - **tool_trajectory_avg_score**: Did the agent call the correct tools in the correct order?
- - **response_match_score**: Did the agent produce responses consistent with the golden reference?
-6. Run the evaluation
+Events carry no prompts or answers. Set `AGENTEVALS_EVALUATION_EVENTS_EXPLANATION=true` to add the evaluator's explanation, which can contain content. To forward events to a real backend and turn scores into a histogram metric, see [OpenTelemetry pipelines](../../docs/opentelemetry-pipeline.md). Outside Kubernetes, `agentevals run ... --emit-otel` and `agentevals serve --emit-otel` do the same.
-### What to look for
+## Claude Code workaround
-| Metric | What it tells you |
-|--------|------------------|
-| `tool_trajectory_avg_score` | Whether the agent followed the expected sequence of Helm tool calls (`helm-list`, then `helm-get-values`). A score of 1.0 means it matched exactly. |
-| `response_match_score` | How closely the agent's final answers matched the GPT-5 baseline. Useful for catching regressions when switching to a cheaper model. |
+Claude Code exports its own `claude_code.*` spans instead of GenAI ones. kagent wraps each turn in a GenAI `invoke_agent` span, so out of the box you only get the message and the answer.
-Compare the two sessions in the results table:
+The `transform/claude_code` processor in `otel-collector.yaml` fills the gap for Claude Code 2.1.285:
-- **Token usage**: The session metadata includes total token counts. If `gpt-5` consumed fewer tokens while achieving the same trajectory score, it may be the better choice for this use case.
-- **Tool trajectory**: If one agent called extra tools or skipped expected ones, the trajectory score reflects that.
-- **Response quality**: A lower response match score on the `gpt-4.1-mini` session highlights where the cheaper model diverged from the GPT-5 baseline.
+* `claude_code.tool` becomes `execute_tool`, with `gen_ai.tool.name` taken from `tool_name` (minus the `mcp____` prefix)
+* `claude_code.llm_request` becomes `chat`, with the model and token usage, cache reads and writes included
-
+Recheck it when you upgrade the harness, since those names can change. Drop it once the harness emits GenAI spans itself, or calls get counted twice.
-You can also click an individual conversation and see a breakdown of each evaluator.
+Still missing with this version:
-
+* tool arguments, since Claude Code doesn't put them on spans
+* a clean answer: the response is everything the harness streamed in the turn, subagent chatter included
+* background calls, which aren't part of the turn's trace
-## Cleanup
+## Clean up
```bash
-helm uninstall kagent -n kagent
-helm uninstall kagent-crds -n kagent
-helm uninstall otel-collector -n kagent
-helm uninstall agentevals
-kubectl delete namespace kagent
+envsubst < agents.yaml | kubectl delete -f -
+helm uninstall agentevals -n agentevals
+kubectl delete -f otel-collector.yaml
+kubectl delete namespace agentevals
```
diff --git a/examples/kubernetes/agentevals-values.yaml b/examples/kubernetes/agentevals-values.yaml
new file mode 100644
index 00000000..e599f35f
--- /dev/null
+++ b/examples/kubernetes/agentevals-values.yaml
@@ -0,0 +1,8 @@
+# Send evaluation results to the Collector as gen_ai.evaluation.result log events.
+env:
+ - name: AGENTEVALS_EVALUATION_EVENTS
+ value: "true"
+ - name: OTEL_EXPORTER_OTLP_ENDPOINT
+ value: http://otel-collector.agentevals.svc.cluster.local:4318
+ - name: OTEL_SERVICE_NAME
+ value: agentevals
diff --git a/examples/kubernetes/agents.yaml b/examples/kubernetes/agents.yaml
new file mode 100644
index 00000000..c6b80f1b
--- /dev/null
+++ b/examples/kubernetes/agents.yaml
@@ -0,0 +1,54 @@
+# Two kagent agents with the same prompt and tools: one on the Go ADK runtime, one on the
+# Claude Code harness. Set the workload images to the ones shipped with your kagent release,
+# and the worker pool and snapshot location to the ones of your kagent install.
+apiVersion: api.kagent.dev/v1alpha3
+kind: Agent
+metadata:
+ name: adk-go-test
+ namespace: kagent
+spec:
+ template:
+ description: Go ADK test agent.
+ modelConfig:
+ name: default-model-config
+ systemPrompt: You are a helpful assistant running on kagent.
+ tools:
+ - mcp:
+ server:
+ kind: RemoteMCPServer
+ name: kagent-tool-server
+ harness:
+ kagent: {}
+ workload:
+ image: ${KAGENT_ADK_GO_IMAGE}
+ substrate:
+ workerPoolRef:
+ name: kagent-default
+ snapshotPolicy:
+ location: s3://ate-snapshots/kagent
+---
+apiVersion: api.kagent.dev/v1alpha3
+kind: Agent
+metadata:
+ name: claude-test
+ namespace: kagent
+spec:
+ template:
+ description: Claude Code harness test agent.
+ modelConfig:
+ name: default-model-config
+ systemPrompt: You are a helpful assistant running on kagent.
+ tools:
+ - mcp:
+ server:
+ kind: RemoteMCPServer
+ name: kagent-tool-server
+ harness:
+ claude: {}
+ workload:
+ image: ${KAGENT_CLAUDE_IMAGE}
+ substrate:
+ workerPoolRef:
+ name: kagent-default
+ snapshotPolicy:
+ location: s3://ate-snapshots/kagent
diff --git a/examples/kubernetes/otel-collector.yaml b/examples/kubernetes/otel-collector.yaml
new file mode 100644
index 00000000..9d829379
--- /dev/null
+++ b/examples/kubernetes/otel-collector.yaml
@@ -0,0 +1,129 @@
+# OpenTelemetry Collector between kagent and agentevals.
+#
+# traces and logs from kagent go to agentevals; evaluation results that agentevals sends back
+# are printed by the debug exporter (kubectl logs deploy/otel-collector).
+#
+# transform/claude_code is a workaround for Claude Code native telemetry, checked with
+# Claude Code 2.1.285 (kagent Claude harness). Remove it once the producer emits GenAI
+# execute_tool and chat spans itself, or both would be counted.
+apiVersion: v1
+kind: ConfigMap
+metadata:
+ name: otel-collector
+ namespace: agentevals
+data:
+ config.yaml: |
+ receivers:
+ otlp:
+ protocols:
+ grpc:
+ endpoint: 0.0.0.0:4317
+ http:
+ endpoint: 0.0.0.0:4318
+
+ processors:
+ memory_limiter:
+ check_interval: 1s
+ limit_percentage: 80
+ spike_limit_percentage: 20
+
+ transform/claude_code:
+ error_mode: ignore
+ trace_statements:
+ - context: span
+ conditions:
+ - instrumentation_scope.name == "com.anthropic.claude_code.tracing"
+ statements:
+ - set(span.attributes["gen_ai.operation.name"], "execute_tool") where span.name == "claude_code.tool"
+ - set(span.attributes["gen_ai.tool.name"], span.attributes["tool_name"]) where span.name == "claude_code.tool"
+ - replace_pattern(span.attributes["gen_ai.tool.name"], "^mcp__.+?__", "")
+ - set(span.attributes["gen_ai.operation.name"], "chat") where span.name == "claude_code.llm_request"
+ - set(span.attributes["gen_ai.response.model"], span.attributes["model"]) where span.name == "claude_code.llm_request"
+ - set(span.attributes["gen_ai.usage.input_tokens"], span.attributes["input_tokens"] + span.attributes["cache_read_tokens"] + span.attributes["cache_creation_tokens"]) where span.name == "claude_code.llm_request"
+ - set(span.attributes["gen_ai.usage.cache_read.input_tokens"], span.attributes["cache_read_tokens"]) where span.name == "claude_code.llm_request"
+ - set(span.attributes["gen_ai.usage.cache_write.input_tokens"], span.attributes["cache_creation_tokens"]) where span.name == "claude_code.llm_request"
+ - set(span.attributes["gen_ai.usage.output_tokens"], span.attributes["output_tokens"]) where span.name == "claude_code.llm_request"
+
+ filter/not_from_agentevals:
+ error_mode: ignore
+ logs:
+ log_record:
+ - resource.attributes["service.name"] == "agentevals"
+
+ filter/only_from_agentevals:
+ error_mode: ignore
+ logs:
+ log_record:
+ - resource.attributes["service.name"] != "agentevals"
+
+ exporters:
+ otlphttp/agentevals:
+ endpoint: http://agentevals.agentevals.svc.cluster.local:4318
+ debug:
+ verbosity: detailed
+
+ service:
+ pipelines:
+ traces:
+ receivers: [otlp]
+ processors: [memory_limiter, transform/claude_code]
+ exporters: [otlphttp/agentevals]
+ logs/agentevals:
+ receivers: [otlp]
+ processors: [memory_limiter, filter/not_from_agentevals]
+ exporters: [otlphttp/agentevals]
+ logs/results:
+ receivers: [otlp]
+ processors: [memory_limiter, filter/only_from_agentevals]
+ exporters: [debug]
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+ name: otel-collector
+ namespace: agentevals
+spec:
+ replicas: 1
+ selector:
+ matchLabels:
+ app: otel-collector
+ template:
+ metadata:
+ labels:
+ app: otel-collector
+ annotations:
+ # bump to restart the Collector after editing the ConfigMap
+ config-revision: "1"
+ spec:
+ containers:
+ - name: otelcol
+ image: otel/opentelemetry-collector-contrib:0.162.0
+ args: ["--config=/conf/config.yaml"]
+ ports:
+ - name: otlp-grpc
+ containerPort: 4317
+ - name: otlp-http
+ containerPort: 4318
+ volumeMounts:
+ - name: conf
+ mountPath: /conf
+ volumes:
+ - name: conf
+ configMap:
+ name: otel-collector
+---
+apiVersion: v1
+kind: Service
+metadata:
+ name: otel-collector
+ namespace: agentevals
+spec:
+ selector:
+ app: otel-collector
+ ports:
+ - name: otlp-grpc
+ port: 4317
+ targetPort: 4317
+ - name: otlp-http
+ port: 4318
+ targetPort: 4318
diff --git a/examples/langchain_agent/README.md b/examples/langchain_agent/README.md
index 17120c06..d1289072 100644
--- a/examples/langchain_agent/README.md
+++ b/examples/langchain_agent/README.md
@@ -1,232 +1,40 @@
-# LangChain Agent Example with Live Evaluation
+# LangChain agent with live evaluation
-This example demonstrates streaming traces and logs from a LangChain agent to agentevals for real-time evaluation using **OpenTelemetry GenAI semantic conventions**.
+A LangChain dice agent (roll a die, check primes) on OpenAI, streamed to agentevals with an AgentEvals SDK session.
-## What This Does
-
-A LangChain agent with:
-- OpenAI GPT models via LangChain
-- Dice rolling and prime number checking tools
-- Real-time trace streaming to agentevals dev server
-- Live conversation display and evaluation
-
-**Framework-Agnostic:** Uses standard OpenTelemetry GenAI semantic conventions that work with any framework (LangChain, Strands, etc.).
-
-## Quick Start
-
-### 1. Install Dependencies
+## Run it
```bash
-cd /path/to/agentevals
pip install -e .
pip install -r examples/langchain_agent/requirements.txt
-```
-
-### 2. Set API Key
-
-```bash
export OPENAI_API_KEY="sk-..."
-```
-
-### 3. Run the System
-**Terminal 1 - Dev Server:**
-```bash
-agentevals serve --dev --port 8001
+agentevals serve --dev # terminal 1
+cd ui && npm run dev # terminal 2 (optional), http://localhost:5173
+python examples/langchain_agent/main.py # terminal 3
```
-**Terminal 2 - UI (Optional):**
-```bash
-cd ui && npm run dev
-# Open http://localhost:5173
-```
+`python examples/langchain_agent/test_streaming.py` checks that this machine can reach the receiver.
-**Terminal 3 - Run Agent:**
-```bash
-python examples/langchain_agent/main.py
-```
-
-## How It Works
-
-### Integration Setup
-
-The key setup function in `main.py`:
+## How it works
```python
-def setup_otel_streaming(ws_url: str, session_id: str, eval_set_id: str | None = None):
- # 1. Enable message content capture (CRITICAL!)
- os.environ["OTEL_INSTRUMENTATION_GENAI_CAPTURE_MESSAGE_CONTENT"] = "true"
-
- # 2. Create TracerProvider (for spans - metadata)
- tracer_provider = TracerProvider()
- trace.set_tracer_provider(tracer_provider)
+app = AgentEvals(eval_set_id="langchain_agent_eval")
- # 3. Create LoggerProvider (for logs - message content)
- logger_provider = LoggerProvider()
- set_logger_provider(logger_provider)
-
- # 4. Create streaming processor with background event loop
- processor = AgentEvalsStreamingProcessor(...)
- # ... connect to server ...
-
- # 5. Add span processor
- tracer_provider.add_span_processor(processor)
-
- # 6. Add log processor (shares same WebSocket connection)
- log_processor = AgentEvalsLogStreamingProcessor(processor)
- logger_provider.add_log_record_processor(log_processor)
-
- # 7. Instrument OpenAI SDK
- OpenAIInstrumentor().instrument()
+with app.session(session_name=session_name):
+ ... # run the agent
```
-### Why Both Spans AND Logs?
-
-OpenTelemetry GenAI instrumentation captures two types of data:
-
-**Spans (Metadata):**
-- `gen_ai.request.model` - Model name
-- `gen_ai.usage.input_tokens` - Token counts
-- `gen_ai.usage.output_tokens`
-- `gen_ai.response.finish_reasons`
-
-**Logs (Content):**
-- `gen_ai.user.message` - User input text
-- `gen_ai.choice` - Agent response text
-- `gen_ai.assistant.message` - Tool calls
-
-Message content is stored in logs (not span attributes) for privacy, security, and size considerations.
-
-### Data Flow
-
-```
-LangChain Agent
- ↓
-OpenAI SDK (instrumented)
- ↓
-Spans (metadata) + Logs (message content)
- ↓
-AgentEvalsStreamingProcessor + AgentEvalsLogStreamingProcessor
- ↓
-WebSocket → agentevals dev server
- ↓
-IncrementalInvocationExtractor
- ├─ Processes spans → token updates
- └─ Processes logs → user/agent messages, tool calls
- ↓
-Real-time UI via SSE
-```
-
-## Files
-
-- **`main.py`** - Entry point with streaming setup
- - `setup_otel_streaming()` - Configures OTEL for streaming
- - Shows complete integration pattern
-
-- **`agent.py`** - LangChain agent with tools
- - `roll_die(sides)` - Dice rolling tool
- - `check_prime(nums)` - Prime checking tool
-
-- **`eval_set.json`** - Golden evaluation cases
-- **`test_streaming.py`** - Connection test
-- **`requirements.txt`** - Dependencies
-
-## Critical Configuration
-
-### 1. Enable Message Content Capture
-
-```python
-os.environ["OTEL_INSTRUMENTATION_GENAI_CAPTURE_MESSAGE_CONTENT"] = "true"
-```
-
-**Without this:** Only metadata (tokens, model name) is captured. No conversation text appears in UI.
-
-### 2. Create Both Providers
-
-```python
-tracer_provider = TracerProvider() # For spans
-logger_provider = LoggerProvider() # For logs
-```
-
-**Both are required** - spans provide metadata, logs provide message content.
-
-### 3. Add Both Processors
-
-```python
-tracer_provider.add_span_processor(processor)
-logger_provider.add_log_record_processor(log_processor)
-```
-
-The log processor shares the WebSocket connection from the span processor.
-
-### 4. Background Event Loop
-
-```python
-loop = asyncio.new_event_loop()
-
-
-def run_loop_in_background():
- asyncio.set_event_loop(loop)
- loop.run_forever()
-
-
-thread = threading.Thread(target=run_loop_in_background, daemon=True)
-thread.start()
-```
-
-**Required** because OTEL processors run in sync context but need async WebSocket connection.
-
-## Adapting to Your Agent
-
-To add agentevals streaming to your LangChain agent:
-
-1. Copy the `setup_otel_streaming()` function
-2. Call it before your agent runs
-3. Ensure these dependencies are installed:
- - `opentelemetry-sdk`
- - `opentelemetry-instrumentation-openai-v2`
- - `websockets`
-
-```python
-from agentevals.streaming.processor import (
- AgentEvalsStreamingProcessor,
- AgentEvalsLogStreamingProcessor,
-)
-
-# Your existing agent code
-llm = ChatOpenAI(model="gpt-4")
-
-# Add agentevals streaming
-setup_otel_streaming(
- ws_url="ws://localhost:8001/ws/traces",
- session_id=f"my-agent-{datetime.now().isoformat()}",
- eval_set_id="my_eval_set",
-)
-
-# Run your agent as normal
-response = llm.invoke(...)
-```
+* The SDK instruments the OpenAI client (`opentelemetry-instrumentation-openai-v2`) and sets up a log provider, because this instrumentation puts message content in log events. Content capture is turned on for you (`OTEL_INSTRUMENTATION_GENAI_CAPTURE_MESSAGE_CONTENT=true`).
+* Spans and GenAI log events produced inside the session go to agentevals on port 4318. Leaving the block flushes them.
+* LangChain only instruments the model client here, so each model call is its own trace. agentevals joins a call that answers a tool result to the turn before it, so the UI shows three turns.
## Troubleshooting
-**"No conversation text in UI (only tokens)"**
-- Set `OTEL_INSTRUMENTATION_GENAI_CAPTURE_MESSAGE_CONTENT=true`
-- Check that LoggerProvider and log processor are configured
-
-**"Connection refused"**
-- Ensure dev server is running: `agentevals serve --dev --port 8001`
-
-**"Duplicate messages in UI"**
-- Fixed in incremental processor - uses deduplication by content hash
-
-**"No traces appearing"**
-- Run `test_streaming.py` to verify WebSocket connectivity
-- Check dev server logs for connection messages
-
-## Extending to Other Frameworks
-
-This pattern works with any framework using GenAI semantic conventions:
-
-- **Strands** - Uses span events for message content
-- **Custom agents** - Use `opentelemetry-instrumentation-openai-v2`
+| Symptom | Fix |
+|---|---|
+| `ConnectionError` when the session starts | Start `agentevals serve --dev`, or pass `AgentEvals(endpoint=...)` |
+| Turns have no text | Content capture is off, or logs are not exported |
+| No session appears | The OpenAI client was created before instrumentation; create the agent inside the session |
+Without the SDK, the same agent works with plain OTLP export: see [zero-code-examples/langchain](../zero-code-examples/langchain/).
diff --git a/examples/langchain_agent/main.py b/examples/langchain_agent/main.py
index bfbc8615..dcfb5093 100644
--- a/examples/langchain_agent/main.py
+++ b/examples/langchain_agent/main.py
@@ -4,8 +4,8 @@
to the agentevals dev server for real-time evaluation and visualization.
Key integration points:
-1. OpenTelemetry GenAI instrumentation captures LLM calls
-2. Spans (metadata) and logs (message content) are streamed via WebSocket
+1. OpenTelemetry GenAI instrumentation (openai-v2) captures LLM calls
+2. An AgentEvals session exports the spans and GenAI log events produced inside it over OTLP
3. Real-time UI shows conversation, tool calls, and token usage
Prerequisites:
@@ -13,7 +13,7 @@
$ pip install -r requirements.txt
2. Start agentevals dev server:
- $ agentevals serve --dev --port 8001
+ $ agentevals serve --dev
3. (Optional) Start UI for visualization:
$ cd ui && npm run dev
@@ -28,152 +28,76 @@
View live results at http://localhost:5173
"""
-import asyncio
import os
-import threading
from agent import create_dice_agent
from dotenv import load_dotenv
from langchain_core.messages import HumanMessage, ToolMessage
-from opentelemetry import trace
-from opentelemetry._logs import set_logger_provider
-from opentelemetry.instrumentation.openai_v2 import OpenAIInstrumentor
-from opentelemetry.sdk._logs import LoggerProvider
-from opentelemetry.sdk.trace import TracerProvider
-from agentevals.streaming.processor import (
- AgentEvalsLogStreamingProcessor,
- AgentEvalsStreamingProcessor,
-)
+from agentevals import AgentEvals
load_dotenv(override=True)
-def setup_otel_streaming(ws_url: str, session_id: str, eval_set_id: str | None = None):
- """Configure OpenTelemetry for streaming traces and logs to agentevals.
-
- Critical configuration:
- 1. Set OTEL_INSTRUMENTATION_GENAI_CAPTURE_MESSAGE_CONTENT=true to capture
- message content in logs (required for conversation display)
- 2. Create both TracerProvider (spans) and LoggerProvider (logs)
- 3. Add streaming processors for both spans and logs
- 4. Instrument OpenAI SDK AFTER importing LangChain
-
- Args:
- ws_url: WebSocket URL of agentevals dev server
- session_id: Unique session identifier
- eval_set_id: Optional evaluation set ID for matching
-
- Returns:
- tuple: (tracer_provider, logger_provider, processor, event_loop)
- """
- os.environ["OTEL_INSTRUMENTATION_GENAI_CAPTURE_MESSAGE_CONTENT"] = "true"
-
- tracer_provider = TracerProvider()
- trace.set_tracer_provider(tracer_provider)
-
- logger_provider = LoggerProvider()
- set_logger_provider(logger_provider)
-
- processor = AgentEvalsStreamingProcessor(
- ws_url=ws_url,
- session_id=session_id,
- trace_id=os.urandom(16).hex(),
- )
-
- loop = asyncio.new_event_loop()
-
- def run_loop_in_background():
- asyncio.set_event_loop(loop)
- loop.run_forever()
-
- thread = threading.Thread(target=run_loop_in_background, daemon=True)
- thread.start()
-
- future = asyncio.run_coroutine_threadsafe(processor.connect(eval_set_id=eval_set_id), loop)
- future.result()
-
- tracer_provider.add_span_processor(processor)
-
- log_processor = AgentEvalsLogStreamingProcessor(processor)
- logger_provider.add_log_record_processor(log_processor)
-
- OpenAIInstrumentor().instrument()
-
- return tracer_provider, logger_provider, processor, loop
-
-
def main():
if not os.getenv("OPENAI_API_KEY"):
print("⚠️ OPENAI_API_KEY not set. Set it with:")
print(" export OPENAI_API_KEY='your-key-here'")
return
- session_id = f"langchain-session-{os.urandom(4).hex()}"
+ session_name = f"langchain-session-{os.urandom(4).hex()}"
+ # The SDK instruments the OpenAI client (openai-v2) and sets up the log provider that
+ # carries message content, so the agent module only needs to be imported first.
+ app = AgentEvals(eval_set_id="langchain_agent_eval")
- print("Setting up OpenTelemetry streaming...")
- tracer_provider, logger_provider, processor, loop = setup_otel_streaming(
- ws_url="ws://localhost:8001/ws/traces",
- session_id=session_id,
- eval_set_id="langchain_agent_eval",
- )
+ with app.session(session_name=session_name):
+ print("✓ Streaming to the agentevals dev server")
+ print(f" Session: {session_name}")
+ print(" View live: http://localhost:5173")
+ print()
- print("✓ Connected to agentevals dev server")
- print(f" Session: {session_id}")
- print(" View live: http://localhost:5173")
- print()
+ print("🎲 LangChain Dice Agent - Live Dev Mode")
+ print("=" * 50)
+ print()
- print("🎲 LangChain Dice Agent - Live Dev Mode")
- print("=" * 50)
- print()
-
- llm_with_tools, tools = create_dice_agent()
+ llm_with_tools, tools = create_dice_agent()
- test_queries = [
- "Hi! Can you help me?",
- "Roll a 20-sided die for me",
- "Is the number you rolled prime?",
- ]
+ test_queries = [
+ "Hi! Can you help me?",
+ "Roll a 20-sided die for me",
+ "Is the number you rolled prime?",
+ ]
- messages = []
+ messages = []
- for i, query in enumerate(test_queries, 1):
- print(f"\n[{i}/{len(test_queries)}] User: {query}")
+ for i, query in enumerate(test_queries, 1):
+ print(f"\n[{i}/{len(test_queries)}] User: {query}")
- messages.append(HumanMessage(content=query))
+ messages.append(HumanMessage(content=query))
- max_iterations = 5
- for iteration in range(max_iterations):
- response = llm_with_tools.invoke(messages)
- messages.append(response)
+ max_iterations = 5
+ for iteration in range(max_iterations):
+ response = llm_with_tools.invoke(messages)
+ messages.append(response)
- if not response.tool_calls:
- agent_response = response.content
- print(f" Agent: {agent_response}")
- break
+ if not response.tool_calls:
+ agent_response = response.content
+ print(f" Agent: {agent_response}")
+ break
- for tool_call in response.tool_calls:
- tool_name = tool_call["name"]
- tool_args = tool_call["args"]
+ for tool_call in response.tool_calls:
+ tool_name = tool_call["name"]
+ tool_args = tool_call["args"]
- selected_tool = {t.name: t for t in tools}.get(tool_name)
- if selected_tool:
- tool_result = selected_tool.invoke(tool_args)
- messages.append(ToolMessage(content=str(tool_result), tool_call_id=tool_call["id"]))
- else:
- print(" Agent: [Max iterations reached]")
+ selected_tool = {t.name: t for t in tools}.get(tool_name)
+ if selected_tool:
+ tool_result = selected_tool.invoke(tool_args)
+ messages.append(ToolMessage(content=str(tool_result), tool_call_id=tool_call["id"]))
+ else:
+ print(" Agent: [Max iterations reached]")
print()
- print("✓ Agent execution complete")
- print()
-
- tracer_provider.force_flush()
- logger_provider.force_flush()
- print("✓ All traces and logs flushed to server")
-
- future = asyncio.run_coroutine_threadsafe(processor.shutdown_async(), loop)
- future.result()
- print("✓ Session ended")
+ print("✓ Agent execution complete, session flushed to the server")
if __name__ == "__main__":
diff --git a/examples/langchain_agent/test_streaming.py b/examples/langchain_agent/test_streaming.py
index 05225b19..df22e553 100644
--- a/examples/langchain_agent/test_streaming.py
+++ b/examples/langchain_agent/test_streaming.py
@@ -1,79 +1,44 @@
-"""Quick test to verify streaming connectivity with agentevals dev server.
+"""Quick check that this machine can stream to the agentevals dev server.
-This minimal script tests:
-1. WebSocket connection to dev server
-2. Basic OTEL span transmission
-3. Session creation and shutdown
+Opens an AgentEvals session, records one span inside it and closes the session, which flushes
+the span to the OTLP receiver. The session then shows up in the UI.
Prerequisites:
- $ agentevals serve --dev --port 8001
+ $ agentevals serve --dev
Usage:
$ python examples/langchain_agent/test_streaming.py
"""
import asyncio
-import os
-from datetime import datetime
from opentelemetry import trace
from opentelemetry.sdk.trace import TracerProvider
+from agentevals import AgentEvals
-async def test_connection():
- print("🔍 Testing connection to agentevals dev server...")
- print()
+async def test_streaming():
provider = TracerProvider()
trace.set_tracer_provider(provider)
+ app = AgentEvals(auto_instrument=False)
try:
- from agentevals.streaming.processor import AgentEvalsStreamingProcessor
-
- timestamp = datetime.now().strftime("%Y%m%d-%H%M%S-%f")[:21]
- session_id = f"test-langchain-{timestamp}"
-
- processor = AgentEvalsStreamingProcessor(
- ws_url="ws://localhost:8001/ws/traces",
- session_id=session_id,
- trace_id="test-" + os.urandom(8).hex(),
- )
-
- print("Connecting...")
- await processor.connect(
- eval_set_id="test_eval",
+ async with app.session_async(
+ eval_set_id="test-eval",
+ session_name="streaming-check",
metadata={"test": True},
- )
-
- provider.add_span_processor(processor)
-
- print("✓ Connected successfully!")
- print(f" Session ID: {session_id}")
- print()
-
- tracer = trace.get_tracer(__name__)
- with tracer.start_as_current_span("test_span") as span:
- span.set_attribute("test.attribute", "hello")
- print("✓ Created test span")
-
- await processor.shutdown_async()
- print("✓ Shutdown complete")
- print()
- print("Connection test PASSED ✓")
-
- except ImportError:
- print("❌ agentevals not installed")
- print(" Install with: pip install -e ../..")
- print()
-
- except Exception as e:
- print("❌ Connection test FAILED")
- print(f" Error: {e}")
- print()
- print("Make sure agentevals dev server is running:")
- print(" $ agentevals serve --dev --port 8001")
+ tracer_provider=provider,
+ ):
+ print("✓ Reached the OTLP receiver")
+ with provider.get_tracer("streaming-check").start_as_current_span("test_span"):
+ print("✓ Created test span")
+ print("✓ Session flushed")
print()
+ print("Streaming works. Look for the 'streaming-check' session in the UI.")
+ except ConnectionError as exc:
+ print(f"❌ {exc}")
if __name__ == "__main__":
- asyncio.run(test_connection())
+ asyncio.run(test_streaming())
diff --git a/examples/strands_agent/main.py b/examples/strands_agent/main.py
index eb49fe10..125d1dc3 100644
--- a/examples/strands_agent/main.py
+++ b/examples/strands_agent/main.py
@@ -5,23 +5,22 @@
Key integration points:
1. StrandsTelemetry initializes the global TracerProvider with OTel tracing
-2. AgentEvalsStreamingProcessor is added to that provider to stream spans via WebSocket
+2. An AgentEvals session on that provider exports the spans produced inside it over OTLP
3. OTEL_SEMCONV_STABILITY_OPT_IN=gen_ai_latest_experimental enables structured message
- events with gen_ai.input.messages / gen_ai.output.messages attributes, which the
- streaming processor promotes from span events to span attributes
+ events with gen_ai.input.messages / gen_ai.output.messages attributes, which agentevals
+ reads from the span events
Note: Strands currently delivers message content via span events. The OTel community
is deprecating span events in favor of log-based events (see
-https://opentelemetry.io/blog/2026/deprecating-span-events/). Future Strands versions
-will likely migrate to log-based events, at which point this example should switch to
-the logs-based pattern used in langchain_agent/.
+https://opentelemetry.io/blog/2026/deprecating-span-events/). agentevals reads both forms,
+so this example keeps working when Strands moves to log based events.
Prerequisites:
1. Install dependencies:
$ pip install -r requirements.txt
2. Start agentevals dev server:
- $ agentevals serve --dev --port 8001
+ $ agentevals serve --dev
3. (Optional) Start UI for visualization:
$ cd ui && npm run dev
@@ -35,103 +34,54 @@
View live results at http://localhost:5173
"""
-import asyncio
import os
-import threading
from agent import create_dice_agent
from dotenv import load_dotenv
from strands.telemetry import StrandsTelemetry
-from agentevals.streaming.processor import AgentEvalsStreamingProcessor
+from agentevals import AgentEvals
load_dotenv(override=True)
os.environ.setdefault("OTEL_SEMCONV_STABILITY_OPT_IN", "gen_ai_latest_experimental")
-def setup_otel_streaming(ws_url: str, session_id: str, eval_set_id: str | None = None):
- """Configure OTel for streaming Strands traces to agentevals.
-
- StrandsTelemetry() creates and sets the global TracerProvider. Strands agents
- pick up the global provider automatically. We attach AgentEvalsStreamingProcessor
- to that same provider so all agent spans are streamed to the dev server.
-
- Returns:
- tuple: (telemetry, processor, event_loop)
- """
- telemetry = StrandsTelemetry()
-
- processor = AgentEvalsStreamingProcessor(
- ws_url=ws_url,
- session_id=session_id,
- trace_id=os.urandom(16).hex(),
- )
-
- loop = asyncio.new_event_loop()
-
- def run_loop_in_background():
- asyncio.set_event_loop(loop)
- loop.run_forever()
-
- thread = threading.Thread(target=run_loop_in_background, daemon=True)
- thread.start()
-
- future = asyncio.run_coroutine_threadsafe(processor.connect(eval_set_id=eval_set_id), loop)
- future.result()
-
- telemetry.tracer_provider.add_span_processor(processor)
-
- return telemetry, processor, loop
-
-
def main():
if not os.getenv("OPENAI_API_KEY"):
print("⚠️ OPENAI_API_KEY not set. Set it with:")
print(" export OPENAI_API_KEY='your-key-here'")
return
- session_id = f"strands-session-{os.urandom(4).hex()}"
+ telemetry = StrandsTelemetry()
+ session_name = f"strands-session-{os.urandom(4).hex()}"
+ app = AgentEvals(eval_set_id="strands_agent_eval", auto_instrument=False)
- print("Setting up OpenTelemetry streaming...")
- telemetry, processor, loop = setup_otel_streaming(
- ws_url="ws://localhost:8001/ws/traces",
- session_id=session_id,
- eval_set_id="strands_agent_eval",
- )
+ with app.session(session_name=session_name, tracer_provider=telemetry.tracer_provider):
+ print("✓ Streaming to the agentevals dev server")
+ print(f" Session: {session_name}")
+ print(" View live: http://localhost:5173")
+ print()
- print("✓ Connected to agentevals dev server")
- print(f" Session: {session_id}")
- print(" View live: http://localhost:5173")
- print()
+ print("🎲 Strands Dice Agent - Live Dev Mode")
+ print("=" * 50)
+ print()
- print("🎲 Strands Dice Agent - Live Dev Mode")
- print("=" * 50)
- print()
+ agent = create_dice_agent()
- agent = create_dice_agent()
+ test_queries = [
+ "Hi! Can you help me?",
+ "Roll a 20-sided die for me",
+ "Is the number you rolled prime?",
+ ]
- test_queries = [
- "Hi! Can you help me?",
- "Roll a 20-sided die for me",
- "Is the number you rolled prime?",
- ]
+ for i, query in enumerate(test_queries, 1):
+ print(f"\n[{i}/{len(test_queries)}] User: {query}")
+ result = agent(query)
+ print(f" Agent: {result}")
- for i, query in enumerate(test_queries, 1):
- print(f"\n[{i}/{len(test_queries)}] User: {query}")
- result = agent(query)
- print(f" Agent: {result}")
-
- print()
- print("✓ Agent execution complete")
print()
-
- telemetry.tracer_provider.force_flush()
- print("✓ All traces flushed to server")
-
- future = asyncio.run_coroutine_threadsafe(processor.shutdown_async(), loop)
- future.result()
- print("✓ Session ended")
+ print("✓ Agent execution complete, session flushed to the server")
if __name__ == "__main__":
diff --git a/examples/zero-code-examples/adk/run.py b/examples/zero-code-examples/adk/run.py
index f5e8419d..df48c560 100644
--- a/examples/zero-code-examples/adk/run.py
+++ b/examples/zero-code-examples/adk/run.py
@@ -20,6 +20,7 @@
import asyncio
import os
import sys
+import uuid
from dotenv import load_dotenv
from google.adk.runners import InMemoryRunner
@@ -49,6 +50,9 @@ async def main():
"OTEL_RESOURCE_ATTRIBUTES",
"agentevals.eval_set_id=dice_agent_eval,agentevals.session_name=adk-zero-code",
)
+ # A process level identity, so agentevals can tell a rerun of this script from the next turn.
+ if "service.instance.id=" not in os.environ["OTEL_RESOURCE_ATTRIBUTES"]:
+ os.environ["OTEL_RESOURCE_ATTRIBUTES"] += f",service.instance.id={uuid.uuid4()}"
resource = Resource.create()
diff --git a/examples/zero-code-examples/langchain/run.py b/examples/zero-code-examples/langchain/run.py
index 7d283ee7..363833cd 100644
--- a/examples/zero-code-examples/langchain/run.py
+++ b/examples/zero-code-examples/langchain/run.py
@@ -18,6 +18,7 @@
import os
import sys
+import uuid
from dotenv import load_dotenv
from langchain_core.messages import HumanMessage, ToolMessage
@@ -53,6 +54,9 @@ def main():
"OTEL_RESOURCE_ATTRIBUTES",
"agentevals.eval_set_id=langchain_agent_eval,agentevals.session_name=langchain-zero-code",
)
+ # A process level identity, so agentevals can tell a rerun of this script from the next turn.
+ if "service.instance.id=" not in os.environ["OTEL_RESOURCE_ATTRIBUTES"]:
+ os.environ["OTEL_RESOURCE_ATTRIBUTES"] += f",service.instance.id={uuid.uuid4()}"
resource = Resource.create()
diff --git a/examples/zero-code-examples/ollama/run.py b/examples/zero-code-examples/ollama/run.py
index 9686d371..73a764f9 100644
--- a/examples/zero-code-examples/ollama/run.py
+++ b/examples/zero-code-examples/ollama/run.py
@@ -22,6 +22,7 @@
import json
import os
import sys
+import uuid
from dotenv import load_dotenv
from langchain_core.messages import HumanMessage, ToolMessage
@@ -117,6 +118,9 @@ def main():
"OTEL_RESOURCE_ATTRIBUTES",
"agentevals.eval_set_id=langchain_local_ollama_openai_eval,agentevals.session_name=langchain-ollama-openai-zero-code",
)
+ # A process level identity, so agentevals can tell a rerun of this script from the next turn.
+ if "service.instance.id=" not in os.environ["OTEL_RESOURCE_ATTRIBUTES"]:
+ os.environ["OTEL_RESOURCE_ATTRIBUTES"] += f",service.instance.id={uuid.uuid4()}"
resource = Resource.create()
diff --git a/examples/zero-code-examples/openai-agents/run.py b/examples/zero-code-examples/openai-agents/run.py
index c1ab13d6..9f18d07a 100644
--- a/examples/zero-code-examples/openai-agents/run.py
+++ b/examples/zero-code-examples/openai-agents/run.py
@@ -17,6 +17,7 @@
import os
import random
+import uuid
from agents import Agent, Runner, function_tool
from dotenv import load_dotenv
@@ -63,6 +64,9 @@ def main():
"OTEL_RESOURCE_ATTRIBUTES",
"agentevals.eval_set_id=openai_agents_eval,agentevals.session_name=openai-agents-zero-code",
)
+ # A process level identity, so agentevals can tell a rerun of this script from the next turn.
+ if "service.instance.id=" not in os.environ["OTEL_RESOURCE_ATTRIBUTES"]:
+ os.environ["OTEL_RESOURCE_ATTRIBUTES"] += f",service.instance.id={uuid.uuid4()}"
resource = Resource.create()
diff --git a/examples/zero-code-examples/pydantic-ai/run.py b/examples/zero-code-examples/pydantic-ai/run.py
index dfc1e3ad..6b79c82c 100644
--- a/examples/zero-code-examples/pydantic-ai/run.py
+++ b/examples/zero-code-examples/pydantic-ai/run.py
@@ -19,6 +19,7 @@
import os
import random
+import uuid
from dotenv import load_dotenv
from opentelemetry import trace
@@ -59,6 +60,9 @@ def main():
"OTEL_RESOURCE_ATTRIBUTES",
"agentevals.eval_set_id=pydantic_ai_eval,agentevals.session_name=pydantic-ai-zero-code",
)
+ # A process level identity, so agentevals can tell a rerun of this script from the next turn.
+ if "service.instance.id=" not in os.environ["OTEL_RESOURCE_ATTRIBUTES"]:
+ os.environ["OTEL_RESOURCE_ATTRIBUTES"] += f",service.instance.id={uuid.uuid4()}"
resource = Resource.create()
diff --git a/examples/zero-code-examples/strands/run.py b/examples/zero-code-examples/strands/run.py
index 39d34f63..5c5a0fef 100644
--- a/examples/zero-code-examples/strands/run.py
+++ b/examples/zero-code-examples/strands/run.py
@@ -17,6 +17,7 @@
import os
import sys
+import uuid
from dotenv import load_dotenv
from opentelemetry.exporter.otlp.proto.http.trace_exporter import OTLPSpanExporter
@@ -45,6 +46,9 @@ def main():
"OTEL_RESOURCE_ATTRIBUTES",
"agentevals.eval_set_id=strands_agent_eval,agentevals.session_name=strands-zero-code",
)
+ # A process level identity, so agentevals can tell a rerun of this script from the next turn.
+ if "service.instance.id=" not in os.environ["OTEL_RESOURCE_ATTRIBUTES"]:
+ os.environ["OTEL_RESOURCE_ATTRIBUTES"] += f",service.instance.id={uuid.uuid4()}"
telemetry = StrandsTelemetry()
diff --git a/packages/evaluator-sdk-py/src/agentevals_evaluator_sdk/types.py b/packages/evaluator-sdk-py/src/agentevals_evaluator_sdk/types.py
index 3c408e48..b4127412 100644
--- a/packages/evaluator-sdk-py/src/agentevals_evaluator_sdk/types.py
+++ b/packages/evaluator-sdk-py/src/agentevals_evaluator_sdk/types.py
@@ -18,14 +18,17 @@ class ToolCallData(BaseModel):
name: str
args: dict[str, Any] = Field(default_factory=dict)
+ id: Optional[str] = Field(default=None, description="Tool call id, when the producer recorded one (1.1).")
class ToolResponseData(BaseModel):
"""A single tool response received by the agent."""
name: str
- output: str = ""
+ output: str = Field(default="", description="The result as JSON text (1.1; a Python repr in 1.0).")
status: Optional[str] = None
+ id: Optional[str] = Field(default=None, description="Id of the tool call this responds to (1.1).")
+ response: Any = Field(default=None, description="The result as a structured JSON value (1.1).")
class IntermediateStepData(BaseModel):
@@ -53,12 +56,14 @@ class InvocationData(BaseModel):
final_response: Optional[str] = None
intermediate_steps: IntermediateStepData = Field(default_factory=IntermediateStepData)
performance_metrics: Optional[dict[str, Any]] = None
+ trace_id: Optional[str] = Field(default=None, description="Trace of the turn's anchor span (1.1).")
+ span_id: Optional[str] = Field(default=None, description="Anchor span of the turn, same as invocation_id (1.1).")
class EvalInput(BaseModel):
"""Input payload sent to a custom evaluator script/container on stdin."""
- protocol_version: str = "1.0"
+ protocol_version: str = "1.1"
metric_name: str
threshold: float = 0.5
config: dict[str, Any] = Field(default_factory=dict)
diff --git a/pyproject.toml b/pyproject.toml
index 887cae09..29576e95 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -33,6 +33,10 @@ dependencies = [
"pygments>=2.20.0",
"requests>=2.34.2",
"urllib3>=2.7.0",
+ "opentelemetry-sdk>=1.38",
+ "opentelemetry-exporter-otlp-proto-http>=1.38",
+ "opentelemetry-exporter-otlp-proto-grpc>=1.38",
+ "grpcio>=1.66",
]
[project.optional-dependencies]
@@ -42,10 +46,7 @@ live = [
"pyjwt>=2.13.0",
"pydantic-settings>=2.15.0",
]
-streaming = [
- "opentelemetry-sdk>=1.20.0",
- "websockets>=12.0",
-]
+streaming = []
postgres = [
"asyncpg>=0.30.0",
]
diff --git a/src/agentevals/_protocol.py b/src/agentevals/_protocol.py
index de44350d..faae82d3 100644
--- a/src/agentevals/_protocol.py
+++ b/src/agentevals/_protocol.py
@@ -19,7 +19,7 @@
from pydantic import BaseModel, Field
-PROTOCOL_VERSION = "1.0"
+PROTOCOL_VERSION = "1.1"
class ToolCallData(BaseModel):
@@ -27,14 +27,17 @@ class ToolCallData(BaseModel):
name: str
args: dict[str, Any] = Field(default_factory=dict)
+ id: Optional[str] = Field(default=None, description="Tool call id, when the producer recorded one (1.1).")
class ToolResponseData(BaseModel):
"""A single tool response received by the agent."""
name: str
- output: str = ""
+ output: str = Field(default="", description="The result as JSON text (1.1; a Python repr in 1.0).")
status: Optional[str] = None
+ id: Optional[str] = Field(default=None, description="Id of the tool call this responds to (1.1).")
+ response: Any = Field(default=None, description="The result as a structured JSON value (1.1).")
class IntermediateStepData(BaseModel):
@@ -52,6 +55,8 @@ class InvocationData(BaseModel):
final_response: Optional[str] = None
intermediate_steps: IntermediateStepData = Field(default_factory=IntermediateStepData)
performance_metrics: Optional[dict[str, Any]] = None
+ trace_id: Optional[str] = Field(default=None, description="Trace of the turn's anchor span (1.1).")
+ span_id: Optional[str] = Field(default=None, description="Anchor span of the turn, same as invocation_id (1.1).")
class EvalInput(BaseModel):
diff --git a/src/agentevals/adk_bridge.py b/src/agentevals/adk_bridge.py
new file mode 100644
index 00000000..1ef84e73
--- /dev/null
+++ b/src/agentevals/adk_bridge.py
@@ -0,0 +1,144 @@
+"""The single seam between agentevals' canonical model and Google ADK evaluation types.
+
+Golden eval sets stay ADK ``EvalSet`` JSON, and the built-in metrics are ADK evaluators. This
+module turns canonical :class:`~agentevals.genai.model.Turn` objects into ADK ``Invocation``
+objects for those metrics and for the ``/api/convert`` wire shape, and turns ADK eval cases
+into :class:`~agentevals.genai.matching.ExpectedConversation` for everything else. Outside the
+metric registry listings, no other module imports ``google.adk`` or ``google.genai``.
+"""
+
+from __future__ import annotations
+
+import json
+from collections.abc import Sequence
+from typing import Any
+
+from google.adk.evaluation.eval_case import EvalCase, IntermediateData, Invocation
+from google.adk.evaluation.eval_set import EvalSet
+from google.genai import types as genai_types
+
+from .genai.matching import ExpectedConversation, ExpectedTurn
+from .genai.messages import text_of
+from .genai.model import Turn
+
+
+def load_eval_set(path: str) -> EvalSet:
+ with open(path, encoding="utf-8") as f:
+ return EvalSet.model_validate(json.load(f))
+
+
+def load_eval_set_from_dict(data: dict) -> EvalSet:
+ return EvalSet.model_validate(data)
+
+
+def _content_text(content: genai_types.Content | None) -> str | None:
+ if content is None or not content.parts:
+ return None
+ text = "".join(p.text for p in content.parts if p.text)
+ return text or None
+
+
+def expected_from_case(case: EvalCase) -> ExpectedConversation:
+ turns = []
+ for inv in case.conversation or []:
+ data = inv.intermediate_data
+ calls: tuple[dict[str, Any], ...] = ()
+ responses: tuple[dict[str, Any], ...] = ()
+ if isinstance(data, IntermediateData):
+ calls = tuple({"id": c.id, "name": c.name, "arguments": c.args} for c in data.tool_uses)
+ responses = tuple({"id": r.id, "name": r.name, "response": r.response} for r in data.tool_responses)
+ turns.append(
+ ExpectedTurn(
+ user_text=_content_text(inv.user_content),
+ final_text=_content_text(inv.final_response),
+ tool_calls=calls,
+ tool_responses=responses,
+ invocation_id=inv.invocation_id,
+ )
+ )
+ return ExpectedConversation(case_id=case.eval_id, turns=turns, raw=case)
+
+
+def expected_conversations(eval_set: EvalSet | None) -> list[ExpectedConversation]:
+ if eval_set is None:
+ return []
+ return [expected_from_case(case) for case in eval_set.eval_cases if case.conversation]
+
+
+def expected_invocations(expected: ExpectedConversation | None) -> list[Invocation] | None:
+ if expected is None or not isinstance(expected.raw, EvalCase):
+ return None
+ return list(expected.raw.conversation or [])
+
+
+def multi_turn_cases(eval_set: EvalSet | None) -> bool:
+ return any(len(case.conversation or []) > 1 for case in (eval_set.eval_cases if eval_set else []))
+
+
+def _as_dict(value: Any, key: str) -> dict[str, Any]:
+ """ADK function call args and responses are dicts; other JSON values are wrapped."""
+ if isinstance(value, dict):
+ return value
+ if value is None:
+ return {}
+ return {key: value}
+
+
+def to_adk_invocation(turn: Turn) -> Invocation:
+ user_text = text_of(turn.user_input)
+ final_text = text_of(turn.final_output)
+ tool_uses = [
+ genai_types.FunctionCall(id=t.call_id, name=t.name, args=_as_dict(t.arguments, "value"))
+ for t in turn.tool_calls
+ ]
+ tool_responses = [
+ genai_types.FunctionResponse(id=t.call_id, name=t.name, response=_as_dict(t.result, "result"))
+ for t in turn.tool_calls
+ if t.result is not None
+ ]
+ intermediate = [
+ (turn.agent_name or "agent", [genai_types.Part(text=text)])
+ for text in (text_of([m]) for m in turn.intermediate_outputs)
+ if text
+ ]
+ return Invocation(
+ invocation_id=turn.ref.span_id,
+ user_content=genai_types.Content(role="user", parts=[genai_types.Part(text=user_text or "")]),
+ final_response=genai_types.Content(role="model", parts=[genai_types.Part(text=final_text)])
+ if final_text
+ else None,
+ intermediate_data=IntermediateData(
+ tool_uses=tool_uses,
+ tool_responses=tool_responses,
+ intermediate_responses=intermediate,
+ ),
+ creation_timestamp=turn.start_ns / 1e9,
+ )
+
+
+def to_adk_invocations(turns: Sequence[Turn]) -> list[Invocation]:
+ return [to_adk_invocation(t) for t in turns]
+
+
+def invocation_to_dict(inv: Invocation) -> dict[str, Any]:
+ """ADK invocation as snake_case JSON, the shape eval set cases and ``/api/convert`` carry."""
+ out: dict[str, Any] = {"invocation_id": inv.invocation_id}
+ if inv.user_content is not None:
+ out["user_content"] = inv.user_content.model_dump(mode="json", exclude_none=True)
+ if inv.final_response is not None:
+ out["final_response"] = inv.final_response.model_dump(mode="json", exclude_none=True)
+ if inv.intermediate_data is not None:
+ out["intermediate_data"] = inv.intermediate_data.model_dump(mode="json", exclude_none=True)
+ if inv.creation_timestamp is not None:
+ out["creation_timestamp"] = inv.creation_timestamp
+ return out
+
+
+def eval_set_from_turns(eval_set_id: str, turns: Sequence[Turn], case_id: str = "case_1") -> dict[str, Any]:
+ """A one case ADK EvalSet built from recorded turns, as JSON."""
+ return {
+ "eval_set_id": eval_set_id,
+ "eval_cases": [
+ {"eval_id": case_id, "conversation": [invocation_to_dict(i) for i in to_adk_invocations(turns)]}
+ ],
+ }
diff --git a/src/agentevals/api/app.py b/src/agentevals/api/app.py
index 926df17b..bf72c030 100644
--- a/src/agentevals/api/app.py
+++ b/src/agentevals/api/app.py
@@ -10,12 +10,13 @@
from pathlib import Path
from typing import TYPE_CHECKING
-from fastapi import FastAPI, Request, WebSocket
+from fastapi import FastAPI, Request
from fastapi.middleware.cors import CORSMiddleware
from fastapi.responses import StreamingResponse
from agentevals import __version__
+from .. import evaluation_events as emit
from ..run.service import RunService
from ..run.sinks import log_registered_sinks
from ..run.worker import AsyncRunWorker
@@ -27,7 +28,7 @@
from .runs_routes import runs_router
if TYPE_CHECKING:
- from ..streaming.ws_server import StreamingTraceManager
+ from ..streaming.manager import LiveManager
logger = logging.getLogger(__name__)
@@ -72,9 +73,10 @@ async def lifespan(app: FastAPI):
if log_buffer not in ae_logger.handlers:
log_buffer.setFormatter(logging.Formatter("%(levelname)s:%(name)s:%(message)s"))
ae_logger.addHandler(log_buffer)
+ emit.validate_env()
mgr = getattr(app.state, "trace_manager", None)
if mgr:
- mgr.start_cleanup_task()
+ mgr.start()
storage_settings: StorageSettings | None = None
worker: AsyncRunWorker | None = None
@@ -132,6 +134,7 @@ async def lifespan(app: FastAPI):
await repos.close()
if mgr:
await mgr.shutdown()
+ await asyncio.to_thread(emit.shutdown)
ae_logger.removeHandler(log_buffer)
return lifespan
@@ -139,7 +142,7 @@ async def lifespan(app: FastAPI):
def create_app(
*,
- trace_manager: StreamingTraceManager | None = None,
+ trace_manager: LiveManager | None = None,
enable_streaming: bool = False,
static_dir: Path | None = None,
) -> FastAPI:
@@ -191,26 +194,22 @@ def create_app(
app.include_router(streaming_router, prefix="/api/streaming")
- @app.websocket("/ws/traces")
- async def websocket_endpoint(websocket: WebSocket):
- await websocket.app.state.trace_manager.handle_connection(websocket)
-
@app.get("/stream/ui-updates")
async def ui_updates_stream(request: Request):
mgr = request.app.state.trace_manager
async def event_generator():
- queue = mgr.register_sse_client()
+ client = mgr.register_sse_client()
try:
while True:
- event = await queue.get()
+ event = await client.queue.get()
if event is None:
break
yield f"data: {json.dumps(event)}\n\n"
except asyncio.CancelledError:
pass
finally:
- mgr.unregister_sse_client(queue)
+ mgr.unregister_sse_client(client)
return StreamingResponse(
event_generator(),
diff --git a/src/agentevals/api/debug_routes.py b/src/agentevals/api/debug_routes.py
index c0405361..e45091be 100644
--- a/src/agentevals/api/debug_routes.py
+++ b/src/agentevals/api/debug_routes.py
@@ -1,6 +1,6 @@
from __future__ import annotations
-import glob
+import dataclasses
import importlib.metadata
import io
import json
@@ -8,10 +8,10 @@
import os
import platform
import sys
-import tempfile
import zipfile
+from collections.abc import Mapping
from datetime import UTC, datetime
-from typing import TYPE_CHECKING
+from typing import TYPE_CHECKING, Any
from fastapi import APIRouter, Depends, HTTPException, UploadFile
from fastapi import File as FastAPIFile
@@ -20,17 +20,26 @@
from agentevals import __version__
+from ..otel.decode import decode_bare_spans_json, decode_json_document
+from ..otel.identity import coerce_key
+from ..otel.model import EMPTY_SCOPE, LogRecord, Resource, Scope, Span
from ..utils.log_buffer import log_buffer
from .dependencies import get_trace_manager, require_trace_manager
-from .models import DebugLoadData, SessionInfo, StandardResponse, WSSessionCompleteEvent, WSSessionStartedEvent
+from .models import DebugLoadData, StandardResponse
if TYPE_CHECKING:
- from ..streaming.ws_server import StreamingTraceManager
+ from ..streaming.manager import LiveManager
logger = logging.getLogger(__name__)
debug_router = APIRouter()
+MAX_BUNDLE_BYTES = 64 * 1024 * 1024
+MAX_ENTRY_BYTES = 64 * 1024 * 1024
+MAX_TOTAL_ENTRY_BYTES = 256 * 1024 * 1024
+MAX_BUNDLE_SESSIONS = 200
+_SESSION_FILES = ("otlp.json", "spans.json", "logs.json", "session_meta.json")
+
class FrontendDiagnostics(BaseModel):
user_description: str = ""
@@ -77,54 +86,10 @@ def _collect_environment() -> dict:
}
-def _collect_sessions(manager: StreamingTraceManager | None) -> list[dict]:
- if not manager:
- return []
-
- sessions_data = []
- for session in manager.sessions.values():
- sessions_data.append(
- {
- "session_id": session.session_id,
- "trace_id": session.trace_id,
- "eval_set_id": session.eval_set_id,
- "started_at": session.started_at.isoformat(),
- "is_complete": session.is_complete,
- "span_count": len(session.spans),
- "log_count": len(session.logs),
- "metadata": session.metadata,
- "spans": session.spans,
- "logs": session.logs,
- }
- )
- return sessions_data
-
-
-def _collect_temp_files(session_ids: set[str] | None = None) -> dict[str, str]:
- """Collect temp files, filtering JSONL files to current sessions only."""
- tmp_dir = tempfile.gettempdir()
- files = {}
- for pattern in ["agentevals_*.jsonl", "eval_set_*.json"]:
- for path in glob.glob(os.path.join(tmp_dir, pattern)):
- basename = os.path.basename(path)
- # Filter JSONL files to only include current sessions
- if session_ids is not None and basename.endswith(".jsonl"):
- # Extract session ID from filename: agentevals_{session_id}.jsonl
- sid = basename.removeprefix("agentevals_").removesuffix(".jsonl")
- if sid not in session_ids:
- continue
- try:
- with open(path, encoding="utf-8") as f:
- files[basename] = f.read()
- except OSError:
- logger.debug("Could not read temp file %s", path)
- return files
-
-
@debug_router.post("/bundle")
async def create_debug_bundle(
diagnostics: FrontendDiagnostics,
- manager: StreamingTraceManager | None = Depends(get_trace_manager),
+ manager: LiveManager | None = Depends(get_trace_manager),
):
timestamp = datetime.now(tz=UTC).strftime("%Y%m%d-%H%M%S")
prefix = f"bug-report-{timestamp}"
@@ -139,42 +104,29 @@ async def create_debug_bundle(
}
zf.writestr(f"{prefix}/metadata.json", json.dumps(metadata, indent=2))
- sessions = _collect_sessions(manager)
- for s in sessions:
- sid = s["session_id"]
- zf.writestr(
- f"{prefix}/sessions/{sid}/spans.json",
- json.dumps(s["spans"], indent=2),
- )
- zf.writestr(
- f"{prefix}/sessions/{sid}/logs.json",
- json.dumps(s["logs"], indent=2),
- )
- session_meta = {k: v for k, v in s.items() if k not in ("spans", "logs")}
- zf.writestr(
- f"{prefix}/sessions/{sid}/session_meta.json",
- json.dumps(session_meta, indent=2),
- )
+ # Directories are numbered: session ids are chosen by the producer and must never
+ # become archive paths.
+ sessions = list(manager.sessions.values()) if manager else []
+ for index, session in enumerate(sessions, start=1):
+ base = f"{prefix}/sessions/{index:04d}"
+ zf.writestr(f"{base}/otlp.json", json.dumps(manager.session_document(session)))
+ session_meta = {
+ "session_id": session.session_id,
+ "trace_id": manager.store.primary_trace_id(session),
+ "trace_ids": session.trace_ids,
+ "eval_set_id": session.eval_set_id,
+ "started_at": session.started_at.isoformat(),
+ "is_complete": session.is_complete,
+ "span_count": session.span_count,
+ "log_count": session.log_count,
+ "metadata": session.metadata,
+ }
+ zf.writestr(f"{base}/session_meta.json", json.dumps(session_meta, indent=2, default=str))
zf.writestr(f"{prefix}/backend_logs.txt", log_buffer.get_text())
-
- current_session_ids = {s["session_id"] for s in sessions}
- temp_files = _collect_temp_files(session_ids=current_session_ids)
- for filename, content in temp_files.items():
- zf.writestr(f"{prefix}/temp_files/{filename}", content)
-
- zf.writestr(
- f"{prefix}/frontend_state.json",
- json.dumps(diagnostics.app_state, indent=2),
- )
- zf.writestr(
- f"{prefix}/console_logs.json",
- json.dumps(diagnostics.console_logs, indent=2),
- )
- zf.writestr(
- f"{prefix}/network_errors.json",
- json.dumps(diagnostics.network_errors, indent=2),
- )
+ zf.writestr(f"{prefix}/frontend_state.json", json.dumps(diagnostics.app_state, indent=2))
+ zf.writestr(f"{prefix}/console_logs.json", json.dumps(diagnostics.console_logs, indent=2))
+ zf.writestr(f"{prefix}/network_errors.json", json.dumps(diagnostics.network_errors, indent=2))
buf.seek(0)
return StreamingResponse(
@@ -184,78 +136,134 @@ async def create_debug_bundle(
)
+async def _read_upload(file: UploadFile) -> bytes:
+ chunks: list[bytes] = []
+ total = 0
+ while chunk := await file.read(1024 * 1024):
+ total += len(chunk)
+ if total > MAX_BUNDLE_BYTES:
+ raise HTTPException(status_code=413, detail=f"Bundle exceeds {MAX_BUNDLE_BYTES} bytes")
+ chunks.append(chunk)
+ return b"".join(chunks)
+
+
+def _session_entries(zf: zipfile.ZipFile) -> dict[str, dict[str, zipfile.ZipInfo]]:
+ dirs: dict[str, dict[str, zipfile.ZipInfo]] = {}
+ total = 0
+ for info in zf.infolist():
+ parts = info.filename.split("/")
+ if len(parts) < 4 or parts[-3] != "sessions" or parts[-1] not in _SESSION_FILES:
+ continue
+ if info.file_size > MAX_ENTRY_BYTES:
+ raise HTTPException(status_code=413, detail=f"Bundle entry {info.filename!r} is too large")
+ total += info.file_size
+ if total > MAX_TOTAL_ENTRY_BYTES:
+ raise HTTPException(status_code=413, detail="Bundle content is too large")
+ dirs.setdefault("/".join(parts[:-1]), {})[parts[-1]] = info
+ if len(dirs) > MAX_BUNDLE_SESSIONS:
+ raise HTTPException(status_code=413, detail=f"Bundle holds more than {MAX_BUNDLE_SESSIONS} sessions")
+ return dirs
+
+
+def _read_json(zf: zipfile.ZipFile, info: zipfile.ZipInfo | None, default: Any) -> Any:
+ if info is None:
+ return default
+ try:
+ return json.loads(zf.read(info))
+ except (ValueError, RecursionError, zipfile.BadZipFile) as exc:
+ raise HTTPException(status_code=400, detail=f"Unreadable bundle entry {info.filename!r}") from exc
+
+
+def _legacy_session(spans: Any, logs: Any, metadata: Mapping[str, Any]) -> tuple[list[Span], list[LogRecord]]:
+ """Read a bundle written before the store: bare spans with the scope flattened into
+ ``otel.scope.*`` attributes, ``service.name`` in the session metadata, and internal log
+ dicts that carry only their span id."""
+ service_name = metadata.get("service.name")
+ resource = Resource(attributes={"service.name": service_name} if isinstance(service_name, str) else {})
+ decoded = decode_bare_spans_json(spans if isinstance(spans, list) else [], strict=False)
+ scopes: dict[tuple[str, str | None], Scope] = {}
+ out_spans = []
+ for span in decoded.spans:
+ name, version = span.attributes.get("otel.scope.name"), span.attributes.get("otel.scope.version")
+ key = (name if isinstance(name, str) else "", version if isinstance(version, str) else None)
+ scope = scopes.setdefault(key, Scope(name=key[0], version=key[1]))
+ out_spans.append(dataclasses.replace(span, resource=resource, scope=scope))
+
+ trace_of_span = {s.span_id: s.trace_id for s in out_spans}
+ trace_ids = {s.trace_id for s in out_spans}
+ only_trace = next(iter(trace_ids)) if len(trace_ids) == 1 else None
+ out_logs = []
+ for entry in logs if isinstance(logs, list) else []:
+ if not isinstance(entry, dict) or not isinstance(entry.get("event_name"), str):
+ continue
+ span_id = entry.get("span_id") if isinstance(entry.get("span_id"), str) else None
+ trace_id = trace_of_span.get(span_id or "") or only_trace
+ if trace_id is None:
+ continue
+ try:
+ time_ns = int(entry.get("timestamp") or 0) or None
+ except (TypeError, ValueError):
+ time_ns = None
+ attributes = entry.get("attributes")
+ out_logs.append(
+ LogRecord(
+ time_unix_nano=time_ns,
+ observed_time_unix_nano=None,
+ event_name=entry["event_name"],
+ severity_number=None,
+ severity_text=None,
+ body=entry.get("body"),
+ attributes=attributes if isinstance(attributes, dict) else {},
+ trace_id=trace_id,
+ span_id=span_id,
+ flags=None,
+ resource=resource,
+ scope=EMPTY_SCOPE,
+ )
+ )
+ return out_spans, out_logs
+
+
@debug_router.post("/load", response_model=StandardResponse[DebugLoadData])
async def load_debug_bundle(
file: UploadFile = FastAPIFile(...),
- manager: StreamingTraceManager = Depends(require_trace_manager),
+ manager: LiveManager = Depends(require_trace_manager),
):
- content = await file.read()
+ content = await _read_upload(file)
try:
zf = zipfile.ZipFile(io.BytesIO(content))
except zipfile.BadZipFile as exc:
raise HTTPException(status_code=400, detail="Invalid ZIP file") from exc
- session_dirs: dict[str, list[str]] = {}
- for name in zf.namelist():
- parts = name.split("/")
- if len(parts) >= 4 and parts[-3] == "sessions":
- sid = parts[-2]
- session_dirs.setdefault(sid, []).append(name)
-
- if not session_dirs:
+ session_dirs = _session_entries(zf)
+ if not any("otlp.json" in f or "spans.json" in f for f in session_dirs.values()):
raise HTTPException(status_code=400, detail="No sessions found in ZIP")
- from ..streaming.session import TraceSession
-
loaded = []
- for sid, files in session_dirs.items():
- meta_file = next((f for f in files if f.endswith("session_meta.json")), None)
- spans_file = next((f for f in files if f.endswith("spans.json")), None)
- logs_file = next((f for f in files if f.endswith("logs.json")), None)
-
- if not spans_file:
+ for directory, files in session_dirs.items():
+ meta = _read_json(zf, files.get("session_meta.json"), {})
+ meta = meta if isinstance(meta, dict) else {}
+ metadata = meta.get("metadata") if isinstance(meta.get("metadata"), dict) else {}
+ if "otlp.json" in files:
+ decoded = decode_json_document(_read_json(zf, files["otlp.json"], {}), strict=False)
+ spans, logs = decoded.spans, decoded.logs
+ elif "spans.json" in files:
+ spans, logs = _legacy_session(
+ _read_json(zf, files["spans.json"], []), _read_json(zf, files.get("logs.json"), []), metadata
+ )
+ else:
continue
- meta = json.loads(zf.read(meta_file)) if meta_file else {}
- spans = json.loads(zf.read(spans_file))
- logs = json.loads(zf.read(logs_file)) if logs_file else []
-
- session = TraceSession(
- session_id=meta.get("session_id", sid),
- trace_id=meta.get("trace_id", sid),
- eval_set_id=meta.get("eval_set_id"),
- spans=spans,
- logs=logs,
- is_complete=True,
- metadata=meta.get("metadata", {}),
+ session_id = coerce_key(meta.get("session_id")) or coerce_key(directory.rsplit("/", 1)[-1]) or "bundle"
+ session = manager.load_session(
+ session_id,
+ spans,
+ logs,
+ eval_set_id=coerce_key(meta.get("eval_set_id")),
+ metadata=metadata,
)
-
- manager.sessions[session.session_id] = session
-
- await manager.broadcast_to_ui(
- WSSessionStartedEvent(
- session=SessionInfo(
- session_id=session.session_id,
- trace_id=session.trace_id,
- eval_set_id=session.eval_set_id,
- span_count=len(session.spans),
- is_complete=False,
- started_at=session.started_at.isoformat(),
- metadata=session.metadata,
- ),
- ).model_dump(by_alias=True)
- )
-
- invocations_data = await manager._extract_invocations(session)
- await manager._save_spans_to_temp_file(session)
-
- await manager.broadcast_to_ui(
- WSSessionCompleteEvent(
- session_id=session.session_id,
- invocations=invocations_data,
- ).model_dump(by_alias=True)
- )
-
+ if session is None:
+ raise HTTPException(status_code=503, detail="Live store is at capacity")
loaded.append(session.session_id)
logger.info("Loaded session from bug report: %s", session.session_id)
diff --git a/src/agentevals/api/dependencies.py b/src/agentevals/api/dependencies.py
index 5f2566b7..e94a6938 100644
--- a/src/agentevals/api/dependencies.py
+++ b/src/agentevals/api/dependencies.py
@@ -7,21 +7,21 @@
from fastapi import HTTPException, Request
if TYPE_CHECKING:
- from ..streaming.ws_server import StreamingTraceManager
+ from ..streaming.manager import LiveManager
-def get_trace_manager(request: Request) -> StreamingTraceManager | None:
- """Return the StreamingTraceManager or None if live mode is off."""
+def get_trace_manager(request: Request) -> LiveManager | None:
+ """Return the LiveManager or None if live mode is off."""
return getattr(request.app.state, "trace_manager", None)
-def get_trace_manager_from_app(app: Any) -> StreamingTraceManager | None:
- """Return the StreamingTraceManager from an app object or None."""
+def get_trace_manager_from_app(app: Any) -> LiveManager | None:
+ """Return the LiveManager from an app object or None."""
return getattr(app.state, "trace_manager", None)
-def require_trace_manager(request: Request) -> StreamingTraceManager:
- """Return the StreamingTraceManager, raising 503 if live mode is off."""
+def require_trace_manager(request: Request) -> LiveManager:
+ """Return the LiveManager, raising 503 if live mode is off."""
mgr = get_trace_manager_from_app(request.app)
if mgr is None:
raise HTTPException(status_code=503, detail="Live mode not enabled")
diff --git a/src/agentevals/api/models.py b/src/agentevals/api/models.py
index 3922bc88..f00336b9 100644
--- a/src/agentevals/api/models.py
+++ b/src/agentevals/api/models.py
@@ -1,7 +1,7 @@
"""Pydantic response and event models for the agentevals API.
Provides a StandardResponse[T] envelope, typed REST response models,
-SSE evaluation event models, and WebSocket/UI broadcast event models.
+SSE evaluation event models, and live UI broadcast event models.
"""
from __future__ import annotations
@@ -145,6 +145,7 @@ class TraceConversionMetadata(CamelModel):
class TraceConversionEntry(CamelModel):
trace_id: str
+ trace_ids: list[str] = Field(default_factory=list)
invocations: list[dict[str, Any]]
warnings: list[str] = Field(default_factory=list)
metadata: TraceConversionMetadata = Field(default_factory=TraceConversionMetadata)
@@ -205,7 +206,7 @@ class SSEErrorEvent(CamelModel):
# ---------------------------------------------------------------------------
-# WebSocket / UI broadcast event models
+# Live UI broadcast event models
# ---------------------------------------------------------------------------
@@ -223,48 +224,4 @@ class WSSessionCompleteEvent(CamelModel):
class WSSessionRemovedEvent(CamelModel):
type: str = "session_removed"
session_id: str
- absorbed_by: str
-
-
-class WSSpanReceivedEvent(CamelModel):
- type: str = "span_received"
- session_id: str
- span: dict[str, Any]
-
-
-class WSUserInputEvent(CamelModel):
- type: str = "user_input"
- session_id: str
- invocation_id: str
- text: str
- timestamp: float
-
-
-class WSAgentResponseEvent(CamelModel):
- type: str = "agent_response"
- session_id: str
- invocation_id: str
- text: str
- timestamp: float
-
-
-class WSToolCallEvent(CamelModel):
- type: str = "tool_call"
- session_id: str
- invocation_id: str
- tool_call: dict[str, Any]
- timestamp: float
-
-
-class WSTokenUpdateEvent(CamelModel):
- type: str = "token_update"
- session_id: str
- invocation_id: str | None = None
- input_tokens: int
- output_tokens: int
- model: str | None = None
-
-
-class WSErrorEvent(CamelModel):
- type: str = "error"
- message: str
+ absorbed_by: str | None = None
diff --git a/src/agentevals/api/otlp_app.py b/src/agentevals/api/otlp_app.py
index b504d62e..4661b099 100644
--- a/src/agentevals/api/otlp_app.py
+++ b/src/agentevals/api/otlp_app.py
@@ -13,10 +13,10 @@
from .otlp_routes import otlp_router
if TYPE_CHECKING:
- from ..streaming.ws_server import StreamingTraceManager
+ from ..streaming.manager import LiveManager
-def create_otlp_app(*, trace_manager: StreamingTraceManager | None = None) -> FastAPI:
+def create_otlp_app(*, trace_manager: LiveManager | None = None) -> FastAPI:
"""Create the OTLP HTTP receiver app."""
app = FastAPI(title="agentevals OTLP receiver")
if trace_manager is not None:
diff --git a/src/agentevals/api/otlp_grpc.py b/src/agentevals/api/otlp_grpc.py
index 7ac74c8b..1713be17 100644
--- a/src/agentevals/api/otlp_grpc.py
+++ b/src/agentevals/api/otlp_grpc.py
@@ -1,30 +1,32 @@
"""OTLP gRPC receiver services for traces and logs.
Receives standard OTLP/gRPC Export requests on port 4317 and forwards them
-into the same StreamingTraceManager pipeline used by OTLP/HTTP routes.
+into the same live store pipeline used by the OTLP/HTTP routes.
"""
from __future__ import annotations
+import asyncio
import logging
-from typing import TYPE_CHECKING
+from collections.abc import Callable
+from typing import TYPE_CHECKING, Any
-from google.protobuf.json_format import MessageToDict
from opentelemetry.proto.collector.logs.v1 import logs_service_pb2_grpc
from opentelemetry.proto.collector.trace.v1 import trace_service_pb2_grpc
+from ..otel.decode import DecodeResult, decode_logs_proto, decode_traces_proto
+from .otlp_http import PARSE_THREAD_THRESHOLD
from .otlp_processing import (
build_logs_response,
build_traces_response,
- fix_protobuf_id_fields,
- process_logs,
- process_traces,
+ ingest_logs,
+ ingest_traces,
)
if TYPE_CHECKING:
from grpc import aio
- from ..streaming.ws_server import StreamingTraceManager
+ from ..streaming.manager import LiveManager
logger = logging.getLogger(__name__)
@@ -33,34 +35,48 @@
DEFAULT_GRPC_MAX_MESSAGE_BYTES = 8 * 1024 * 1024
+async def _decode(request: Any, decode: Callable[[Any], DecodeResult]) -> DecodeResult:
+ if request.ByteSize() < PARSE_THREAD_THRESHOLD:
+ return decode(request)
+ return await asyncio.to_thread(decode, request)
+
+
+async def _abort_overloaded(context: Any, signal: str) -> None:
+ import grpc
+
+ await context.abort(grpc.StatusCode.UNAVAILABLE, f"Live store is at capacity; {signal} not accepted, retry later")
+
+
class OtlpTraceService(trace_service_pb2_grpc.TraceServiceServicer):
"""OTLP TraceService gRPC implementation."""
- def __init__(self, manager: StreamingTraceManager):
+ def __init__(self, manager: LiveManager):
self._manager = manager
async def Export(self, request, context): # noqa: N802 (gRPC method name)
- body = MessageToDict(request, preserving_proto_field_name=False)
- fix_protobuf_id_fields(body)
- return build_traces_response(await process_traces(body, self._manager))
+ result = await ingest_traces(await _decode(request, decode_traces_proto), self._manager)
+ if result.overloaded:
+ await _abort_overloaded(context, "spans")
+ return build_traces_response(result)
class OtlpLogsService(logs_service_pb2_grpc.LogsServiceServicer):
"""OTLP LogsService gRPC implementation."""
- def __init__(self, manager: StreamingTraceManager):
+ def __init__(self, manager: LiveManager):
self._manager = manager
async def Export(self, request, context): # noqa: N802 (gRPC method name)
- body = MessageToDict(request, preserving_proto_field_name=False)
- fix_protobuf_id_fields(body)
- return build_logs_response(await process_logs(body, self._manager))
+ result = await ingest_logs(await _decode(request, decode_logs_proto), self._manager)
+ if result.overloaded:
+ await _abort_overloaded(context, "log records")
+ return build_logs_response(result)
def create_otlp_grpc_server(
host: str,
port: int,
- manager: StreamingTraceManager,
+ manager: LiveManager,
*,
max_concurrent_rpcs: int = DEFAULT_GRPC_MAX_CONCURRENT_RPCS,
max_message_bytes: int = DEFAULT_GRPC_MAX_MESSAGE_BYTES,
diff --git a/src/agentevals/api/otlp_http.py b/src/agentevals/api/otlp_http.py
index 8b9c1f26..5219e73f 100644
--- a/src/agentevals/api/otlp_http.py
+++ b/src/agentevals/api/otlp_http.py
@@ -12,7 +12,7 @@
import json
import logging
import zlib
-from collections.abc import Callable
+from collections.abc import Callable, Mapping
from fastapi import FastAPI, Request, Response
from google.protobuf.json_format import MessageToJson
@@ -21,6 +21,8 @@
from google.rpc.status_pb2 import Status
from starlette.exceptions import HTTPException as StarletteHTTPException
+from ..otel.decode import DecodeResult
+
logger = logging.getLogger(__name__)
PROTOBUF_MEDIA_TYPE = "application/x-protobuf"
@@ -53,6 +55,9 @@
# Below this size the thread hop costs more than the work it moves.
PARSE_THREAD_THRESHOLD = 1024 * 1024
+# Sent with 503 when the live store refused every item for capacity.
+OVERLOAD_RETRY_AFTER_SECONDS = 5
+
_SUPPORTED_CONTENT_ENCODINGS = frozenset({"", "identity", "gzip"})
# OTLP asks servers to populate Status.code; these are the mappings from the
@@ -75,10 +80,19 @@
class OtlpError(Exception):
"""An OTLP/HTTP failure that must be returned as a `google.rpc.Status` body."""
- def __init__(self, status_code: int, message: str) -> None:
+ def __init__(self, status_code: int, message: str, headers: Mapping[str, str] | None = None) -> None:
super().__init__(message)
self.status_code = status_code
self.message = message
+ self.headers = dict(headers or {})
+
+
+def overload_error(signal: str) -> OtlpError:
+ return OtlpError(
+ 503,
+ f"Live store is at capacity; {signal} not accepted, retry later",
+ {"Retry-After": str(OVERLOAD_RETRY_AFTER_SECONDS)},
+ )
def media_type_of(content_type: str) -> str:
@@ -178,13 +192,15 @@ def _gunzip_bounded(raw: bytes) -> bytes:
async def read_export_request(
request: Request,
- decode_protobuf: Callable[[bytes], dict],
+ decode_json: Callable[[dict], DecodeResult],
+ decode_protobuf: Callable[[bytes], DecodeResult],
container_key: str,
-) -> tuple[dict, str]:
- """Read, decompress and decode an OTLP/HTTP export request.
+) -> tuple[DecodeResult, str]:
+ """Read, decompress and decode an OTLP/HTTP export request into envelopes.
- Returns the OTLP body as a dict plus the media type the response must use.
- Every decoding failure is permanent, so it surfaces as a 400.
+ Returns the decoded items plus the media type the response must use. Every
+ decoding failure is permanent, so it surfaces as a 400; invalid items inside
+ a well formed body are counted on the ``DecodeResult`` instead.
``container_key`` is the top-level request list (``resourceSpans`` or
``resourceLogs``); its type is checked so a structurally invalid JSON body
@@ -200,15 +216,15 @@ async def read_export_request(
raw = await asyncio.to_thread(_decode_content_encoding, request, body_bytes)
if not raw:
- return {}, media_type
+ return DecodeResult(), media_type
# Parsing is proportional to the decompressed size, which is now known, so the
# thread hop is only worth paying above the threshold.
if len(raw) < PARSE_THREAD_THRESHOLD:
- return _parse_body(raw, decode_protobuf, media_type, container_key), media_type
+ return _parse_body(raw, decode_json, decode_protobuf, media_type, container_key), media_type
- body = await asyncio.to_thread(_parse_body, raw, decode_protobuf, media_type, container_key)
- return body, media_type
+ decoded = await asyncio.to_thread(_parse_body, raw, decode_json, decode_protobuf, media_type, container_key)
+ return decoded, media_type
async def _read_bounded_body(request: Request) -> bytes:
@@ -234,10 +250,11 @@ async def _read_bounded_body(request: Request) -> bytes:
def _parse_body(
raw: bytes,
- decode_protobuf: Callable[[bytes], dict],
+ decode_json: Callable[[dict], DecodeResult],
+ decode_protobuf: Callable[[bytes], DecodeResult],
media_type: str,
container_key: str,
-) -> dict:
+) -> DecodeResult:
"""Decode a decompressed export body. Synchronous; callers thread it when large."""
if media_type == PROTOBUF_MEDIA_TYPE:
try:
@@ -258,7 +275,7 @@ def _parse_body(
if not isinstance(containers, list) or any(not isinstance(item, dict) for item in containers):
raise OtlpError(400, f"Malformed OTLP payload: {container_key!r} must be a list of objects")
- return body
+ return decode_json(body)
def build_export_response(message: Message, media_type: str) -> Response:
@@ -321,7 +338,9 @@ async def _handle_http_exception(request: Request, exc: StarletteHTTPException)
@app.exception_handler(OtlpError)
async def _handle_otlp_error(request: Request, exc: OtlpError) -> Response:
- return build_status_response(request, exc.status_code, exc.message)
+ response = build_status_response(request, exc.status_code, exc.message)
+ response.headers.update(exc.headers)
+ return response
@app.exception_handler(Exception)
async def _handle_unexpected_error(request: Request, exc: Exception) -> Response:
diff --git a/src/agentevals/api/otlp_processing.py b/src/agentevals/api/otlp_processing.py
index 4184a2be..49038289 100644
--- a/src/agentevals/api/otlp_processing.py
+++ b/src/agentevals/api/otlp_processing.py
@@ -1,13 +1,17 @@
-"""OTLP payload decoding and processing for traces/logs."""
+"""OTLP export decoding and ingestion, shared by the HTTP and gRPC receivers.
+
+Bodies decode straight into envelopes (``otel.decode``), strictly: invalid ids are rejected item
+by item and reported through ``partialSuccess`` together with what the live store refused.
+"""
from __future__ import annotations
-import base64
import logging
+from collections import Counter
+from collections.abc import Mapping
from dataclasses import dataclass, field
from typing import TYPE_CHECKING
-from google.protobuf.json_format import MessageToDict
from opentelemetry.proto.collector.logs.v1.logs_service_pb2 import (
ExportLogsServiceRequest as LogsServiceRequestPB,
)
@@ -21,23 +25,17 @@
ExportTraceServiceResponse as TraceServiceResponsePB,
)
-from ..extraction import flatten_otlp_attributes
-from ..otlp_anyvalue import decode_any_value
-from ..streaming.session import MAX_LOGS_PER_SESSION, MAX_SPANS_PER_SESSION
-from ..trace_attrs import (
- AGENTEVALS_EVAL_SET_ID,
- AGENTEVALS_SESSION_NAME,
- OTEL_GENAI_CONVERSATION_ID,
- OTEL_GENAI_INPUT_MESSAGES,
- OTEL_GENAI_OUTPUT_MESSAGES,
- OTEL_SCHEMA_URL,
- OTEL_SCOPE,
- OTEL_SCOPE_VERSION,
+from ..otel.decode import (
+ DecodeResult,
+ decode_json_document,
+ decode_logs_proto,
+ decode_traces_proto,
+ proto_names_to_json,
)
-from .models import WSSpanReceivedEvent
+from ..otel.store import IngestResult
if TYPE_CHECKING:
- from ..streaming.ws_server import StreamingTraceManager
+ from ..streaming.manager import LiveManager
logger = logging.getLogger(__name__)
@@ -46,22 +44,28 @@
class ExportResult:
"""Outcome of ingesting one ExportServiceRequest.
- ``rejected`` is what OTLP requires the receiver to report back in the
- response's ``partial_success`` field; ``accepted`` exists for logging and
- tests. Reasons are accumulated so one English ``error_message`` can name
- every cause of rejection.
+ ``rejected`` is what OTLP requires the receiver to report back in the response's
+ ``partial_success`` field. ``overloaded`` is set when any item was refused for transient
+ capacity (memory or session slots), which the receivers answer with a retryable 503 /
+ ``UNAVAILABLE`` instead, so the client resends rather than dropping those items.
"""
accepted: int = 0
rejected: int = 0
rejected_reasons: dict[str, int] = field(default_factory=dict)
+ overloaded: bool = False
+
+ def accept(self, n: int = 1) -> None:
+ self.accepted += n
- def accept(self) -> None:
- self.accepted += 1
+ def reject(self, reason: str, n: int = 1) -> None:
+ if n:
+ self.rejected += n
+ self.rejected_reasons[reason] = self.rejected_reasons.get(reason, 0) + n
- def reject(self, reason: str) -> None:
- self.rejected += 1
- self.rejected_reasons[reason] = self.rejected_reasons.get(reason, 0) + 1
+ def add_reasons(self, reasons: Mapping[str, int]) -> None:
+ for reason, n in reasons.items():
+ self.reject(reason, n)
@property
def error_message(self) -> str:
@@ -70,12 +74,7 @@ def error_message(self) -> str:
def _log_rejections(signal: str, result: ExportResult) -> None:
- """Warn once per export about dropped records.
-
- Once per request, not per record: a long batch arriving at a capped session
- would otherwise flood the log, and the exporter already surfaces the partial
- success on its own side.
- """
+ """Warn once per export about dropped records, never per record."""
if not result.rejected:
return
logger.warning(
@@ -87,194 +86,61 @@ def _log_rejections(signal: str, result: ExportResult) -> None:
)
-async def process_traces(body: dict, manager: StreamingTraceManager) -> ExportResult:
- """Parse ExportTraceServiceRequest and feed spans to the pipeline."""
+def _merge(decoded_reasons: Counter, outcome: IngestResult) -> ExportResult:
result = ExportResult()
+ result.add_reasons(decoded_reasons)
+ result.accept(outcome.accepted)
+ result.add_reasons(outcome.reasons)
+ result.overloaded = outcome.overloaded
+ if outcome.dropped:
+ logger.debug("OTLP export accepted but not stored: %s", dict(outcome.dropped))
+ return result
- for resource_span in body.get("resourceSpans", []):
- resource_attrs = resource_span.get("resource", {}).get("attributes", [])
- metadata = _extract_agentevals_metadata(resource_attrs)
- resource_schema_url = resource_span.get("schemaUrl", "")
-
- if not metadata.get("conversation_id"):
- metadata["conversation_id"] = _prescan_conversation_id(resource_span)
-
- for scope_span in resource_span.get("scopeSpans", []):
- scope = scope_span.get("scope", {})
- scope_name = scope.get("name", "")
- scope_version = scope.get("version", "")
- schema_url = scope_span.get("schemaUrl", "") or resource_schema_url
-
- for span_data in scope_span.get("spans", []):
- span = _normalize_span(span_data, scope_name, scope_version, schema_url)
- trace_id = span.get("traceId", "")
-
- if not trace_id:
- result.reject("span(s) rejected: missing trace_id")
- continue
-
- if not metadata.get("conversation_id"):
- conversation_id = _extract_conversation_id(span.get("attributes", []))
- if conversation_id:
- metadata["conversation_id"] = conversation_id
-
- session = await manager.get_or_create_otlp_session(trace_id, metadata)
-
- if not session.can_accept_span():
- result.reject(f"span(s) rejected: session has reached maximum span limit ({MAX_SPANS_PER_SESSION})")
- continue
-
- session.spans.append(span)
- result.accept()
-
- extractor = manager.incremental_extractors.get(session.session_id)
- if extractor:
- updates = extractor.process_span(span)
- for update in updates:
- update["sessionId"] = session.session_id
- await manager.broadcast_to_ui(update)
-
- await manager.broadcast_to_ui(
- WSSpanReceivedEvent(
- session_id=session.session_id,
- span=span,
- ).model_dump(by_alias=True)
- )
-
- manager.reset_idle_timer(session.session_id)
-
- if not span.get("parentSpanId"):
- session.has_root_span = True
- manager.schedule_session_completion(session.session_id)
+async def ingest_traces(decoded: DecodeResult, manager: LiveManager) -> ExportResult:
+ reasons = Counter({r: n for r, n in decoded.reasons.items() if r.startswith("span")})
+ if decoded.warnings:
+ logger.debug("OTLP trace export decode warnings: %s", dict(decoded.warnings))
+ result = _merge(reasons, await manager.ingest_spans(decoded))
_log_rejections("trace", result)
return result
-async def process_logs(body: dict, manager: StreamingTraceManager) -> ExportResult:
- """Parse ExportLogsServiceRequest and feed logs to sessions.
-
- Logs and spans arrive via separate OTLP exporters (BatchLogRecordProcessor
- and BatchSpanProcessor) and may arrive in any order. When a log's traceId
- isn't yet registered in a session's trace_ids set, we fall back to matching
- by session_name from resource attributes.
-
- Logs may arrive after span-triggered session completion (the
- BatchLogRecordProcessor and BatchSpanProcessor flush independently).
- Late-arriving logs are accepted and trigger re-extraction of invocations.
- """
- result = ExportResult()
- sessions_needing_reextraction: set[str] = set()
-
- for resource_log in body.get("resourceLogs", []):
- resource_attrs = resource_log.get("resource", {}).get("attributes", [])
- metadata = _extract_agentevals_metadata(resource_attrs)
- session_name = metadata.get("session_name")
-
- for scope_log in resource_log.get("scopeLogs", []):
- for log_record in scope_log.get("logRecords", []):
- log_event = _convert_otlp_log_record(log_record)
- if not log_event:
- continue
-
- trace_id = log_record.get("traceId", "")
- if not trace_id:
- result.reject("log record(s) rejected: missing trace_id")
- continue
-
- session = manager.find_session_by_trace_id(trace_id)
-
- if not session and session_name:
- active_id = manager._active_session_for_name.get(session_name)
- candidate = manager.sessions.get(active_id) if active_id else None
- if candidate and not candidate.is_complete:
- candidate.trace_ids.add(trace_id)
- session = candidate
-
- if not session:
- manager.buffer_orphan_log(trace_id, session_name, log_event)
- logger.debug(
- "Buffered orphan log trace_id=%s session_name=%s",
- trace_id[:12],
- session_name,
- )
- continue
-
- if not session.can_accept_log():
- result.reject(
- f"log record(s) rejected: session has reached maximum log limit ({MAX_LOGS_PER_SESSION})"
- )
- continue
-
- session.logs.append(log_event)
- result.accept()
-
- if session.is_complete:
- sessions_needing_reextraction.add(session.session_id)
- else:
- manager.reset_idle_timer(session.session_id)
-
- extractor = manager.incremental_extractors.get(session.session_id)
- if extractor:
- updates = extractor.process_log(log_event)
- for update in updates:
- update["sessionId"] = session.session_id
- await manager.broadcast_to_ui(update)
-
- for session_id in sessions_needing_reextraction:
- manager.schedule_log_reextraction(session_id)
-
+async def ingest_logs(decoded: DecodeResult, manager: LiveManager) -> ExportResult:
+ reasons = Counter({r: n for r, n in decoded.reasons.items() if r.startswith("log")})
+ if decoded.warnings:
+ logger.debug("OTLP log export decode warnings: %s", dict(decoded.warnings))
+ result = _merge(reasons, await manager.ingest_logs(decoded))
_log_rejections("log", result)
return result
-def decode_protobuf_traces(raw: bytes) -> dict:
- """Decode ExportTraceServiceRequest protobuf to OTLP JSON dict."""
- msg = TraceServiceRequestPB()
- msg.ParseFromString(raw)
- data = MessageToDict(msg, preserving_proto_field_name=False)
- fix_protobuf_id_fields(data)
- return data
+def decode_traces_json(body: dict) -> DecodeResult:
+ body = proto_names_to_json(body)
+ return decode_json_document({"resourceSpans": body.get("resourceSpans", [])}, strict=True)
-def decode_protobuf_logs(raw: bytes) -> dict:
- """Decode ExportLogsServiceRequest protobuf to OTLP JSON dict."""
- msg = LogsServiceRequestPB()
- msg.ParseFromString(raw)
- data = MessageToDict(msg, preserving_proto_field_name=False)
- fix_protobuf_id_fields(data)
- return data
+def decode_logs_json(body: dict) -> DecodeResult:
+ body = proto_names_to_json(body)
+ return decode_json_document({"resourceLogs": body.get("resourceLogs", [])}, strict=True)
-def fix_protobuf_id_fields(data) -> None:
- """Convert base64-encoded bytes fields to hex strings in-place.
+def decode_traces_protobuf(raw: bytes) -> DecodeResult:
+ """Raises ``google.protobuf.message.DecodeError`` on a malformed body."""
+ request = TraceServiceRequestPB()
+ request.ParseFromString(raw)
+ return decode_traces_proto(request)
- MessageToDict base64-encodes protobuf bytes fields, but OTLP JSON
- uses hex-encoded strings for traceId, spanId, and parentSpanId.
- """
- if isinstance(data, dict):
- for key in ("traceId", "spanId", "parentSpanId"):
- if key in data and isinstance(data[key], str):
- try:
- raw = base64.b64decode(data[key])
- data[key] = raw.hex()
- except Exception:
- pass
- for value in data.values():
- if isinstance(value, (dict, list)):
- fix_protobuf_id_fields(value)
- elif isinstance(data, list):
- for item in data:
- if isinstance(item, (dict, list)):
- fix_protobuf_id_fields(item)
+def decode_logs_protobuf(raw: bytes) -> DecodeResult:
+ """Raises ``google.protobuf.message.DecodeError`` on a malformed body."""
+ request = LogsServiceRequestPB()
+ request.ParseFromString(raw)
+ return decode_logs_proto(request)
-def build_traces_response(result: ExportResult) -> TraceServiceResponsePB:
- """Build the ExportTraceServiceResponse for an ingest result.
- OTLP requires ``partial_success`` to be left unset on full success, so it is
- populated only when spans were actually rejected.
- """
+def build_traces_response(result: ExportResult) -> TraceServiceResponsePB:
+ """OTLP requires ``partial_success`` to be left unset on full success."""
response = TraceServiceResponsePB()
if result.rejected:
response.partial_success.rejected_spans = result.rejected
@@ -283,144 +149,8 @@ def build_traces_response(result: ExportResult) -> TraceServiceResponsePB:
def build_logs_response(result: ExportResult) -> LogsServiceResponsePB:
- """Build the ExportLogsServiceResponse for an ingest result."""
response = LogsServiceResponsePB()
if result.rejected:
response.partial_success.rejected_log_records = result.rejected
response.partial_success.error_message = result.error_message
return response
-
-
-_GENAI_EVENT_KEYS = {OTEL_GENAI_INPUT_MESSAGES, OTEL_GENAI_OUTPUT_MESSAGES}
-
-
-def _normalize_span(span_data: dict, scope_name: str, scope_version: str, schema_url: str = "") -> dict:
- """Normalize an OTLP span for the downstream pipeline.
-
- Performs two transformations:
- 1. Injects otel.scope.name/version (and otel.schema_url) from the
- scopeSpans level into span attributes (the pipeline expects them
- there).
- 2. Promotes gen_ai.input.messages and gen_ai.output.messages from span
- events to span attributes. Some SDKs (e.g. Strands with
- OTEL_SEMCONV_STABILITY_OPT_IN=gen_ai_latest_experimental) store
- message content in span events, but the converter reads attributes.
- """
- span = dict(span_data)
- attrs = list(span.get("attributes", []))
-
- existing_keys = {a.get("key") for a in attrs}
-
- if scope_name and OTEL_SCOPE not in existing_keys:
- attrs.append({"key": OTEL_SCOPE, "value": {"stringValue": scope_name}})
- existing_keys.add(OTEL_SCOPE)
- if scope_version and OTEL_SCOPE_VERSION not in existing_keys:
- attrs.append({"key": OTEL_SCOPE_VERSION, "value": {"stringValue": scope_version}})
- existing_keys.add(OTEL_SCOPE_VERSION)
- if schema_url and OTEL_SCHEMA_URL not in existing_keys:
- attrs.append({"key": OTEL_SCHEMA_URL, "value": {"stringValue": schema_url}})
- existing_keys.add(OTEL_SCHEMA_URL)
-
- for event in span.get("events", []):
- for attr in event.get("attributes", []):
- key = attr.get("key", "")
- if key in _GENAI_EVENT_KEYS and key not in existing_keys:
- attrs.append(attr)
- existing_keys.add(key)
-
- span["attributes"] = attrs
- return span
-
-
-def _extract_agentevals_metadata(resource_attrs: list[dict]) -> dict:
- """Extract agentevals-specific metadata from OTLP resource attributes.
-
- ``eval_set_id`` and ``session_name`` are used as dict keys downstream
- (``_active_session_for_name``) and typed ``str | None`` on the session
- models. Neither is in ``SPEC_CONTAINER_ATTRS``, so the shared decoder never
- hands them a list or dict in the first place.
- """
- flat = flatten_otlp_attributes(resource_attrs)
- return {
- "eval_set_id": flat.get(AGENTEVALS_EVAL_SET_ID),
- "session_name": flat.get(AGENTEVALS_SESSION_NAME),
- "service_name": flat.get("service.name"),
- "resource_attrs": flat,
- }
-
-
-def _prescan_conversation_id(resource_span: dict) -> str | None:
- """Pre-scan all spans in a resourceSpan batch for gen_ai.conversation.id.
-
- Within a single OTLP batch, some scopes (e.g. A2A server instrumentation)
- may lack conversation_id while others (agent instrumentation) have it.
- Scanning upfront ensures ALL spans in the batch route to the same session.
- """
- for scope_span in resource_span.get("scopeSpans", []):
- for span_data in scope_span.get("spans", []):
- conv_id = _extract_conversation_id(span_data.get("attributes", []))
- if conv_id:
- return conv_id
- return None
-
-
-def _extract_conversation_id(attrs_list: list[dict]) -> str | None:
- """Extract gen_ai.conversation.id from OTLP span attributes."""
- for attr in attrs_list:
- if attr.get("key") == OTEL_GENAI_CONVERSATION_ID:
- return attr.get("value", {}).get("stringValue")
- return None
-
-
-def _convert_otlp_log_record(log_record: dict) -> dict | None:
- """Convert OTLP log record to internal log event format.
-
- Internal format (used by IncrementalInvocationExtractor.process_log()):
- {"event_name": "gen_ai.user.message", "timestamp": ..., "body": {...}, "attributes": {...}}
-
- Handles two event-name conventions:
- - Newer OTel SDKs: top-level ``eventName`` field (LogRecord.event_name proto)
- - Older convention: ``event.name`` stored as a regular attribute
- """
- attrs = flatten_otlp_attributes(log_record.get("attributes", []))
- event_name = log_record.get("eventName") or attrs.get("event.name", "")
-
- if not event_name or not event_name.startswith("gen_ai."):
- return None
-
- body_raw = log_record.get("body", {})
- body = _parse_otlp_body(body_raw)
-
- timestamp = log_record.get("timeUnixNano") or log_record.get("observedTimeUnixNano")
-
- result = {
- "event_name": event_name,
- "timestamp": timestamp,
- "body": body,
- "attributes": attrs,
- }
-
- span_id = log_record.get("spanId", "")
- if span_id:
- result["span_id"] = span_id
-
- return result
-
-
-def _parse_otlp_body(body_raw: dict) -> dict | str:
- """Parse OTLP log record body value.
-
- Top-level stringValue bodies are JSON-decoded (Strands-style logs store
- message content as JSON strings). All other AnyValue types are parsed
- recursively via ``decode_any_value`` (handles the nested kvlistValue /
- arrayValue structures used by the OpenAI instrumentor).
- """
- if "stringValue" in body_raw:
- import json
-
- raw = body_raw["stringValue"]
- try:
- return json.loads(raw)
- except (json.JSONDecodeError, TypeError):
- return raw
- return decode_any_value(body_raw)
diff --git a/src/agentevals/api/otlp_routes.py b/src/agentevals/api/otlp_routes.py
index 6d0ccd61..87667bce 100644
--- a/src/agentevals/api/otlp_routes.py
+++ b/src/agentevals/api/otlp_routes.py
@@ -13,18 +13,20 @@
from fastapi import APIRouter, Depends, Request, Response
from .dependencies import require_trace_manager
-from .otlp_http import build_export_response, read_export_request
+from .otlp_http import build_export_response, overload_error, read_export_request
from .otlp_processing import (
build_logs_response,
build_traces_response,
- decode_protobuf_logs,
- decode_protobuf_traces,
- process_logs,
- process_traces,
+ decode_logs_json,
+ decode_logs_protobuf,
+ decode_traces_json,
+ decode_traces_protobuf,
+ ingest_logs,
+ ingest_traces,
)
if TYPE_CHECKING:
- from ..streaming.ws_server import StreamingTraceManager
+ from ..streaming.manager import LiveManager
otlp_router = APIRouter()
@@ -32,20 +34,26 @@
@otlp_router.post("/v1/traces")
async def receive_traces(
request: Request,
- manager: StreamingTraceManager = Depends(require_trace_manager),
+ manager: LiveManager = Depends(require_trace_manager),
) -> Response:
"""OTLP HTTP trace receiver (ExportTraceServiceRequest)."""
- body, media_type = await read_export_request(request, decode_protobuf_traces, "resourceSpans")
- result = await process_traces(body, manager)
+ decoded, media_type = await read_export_request(
+ request, decode_traces_json, decode_traces_protobuf, "resourceSpans"
+ )
+ result = await ingest_traces(decoded, manager)
+ if result.overloaded:
+ raise overload_error("spans")
return build_export_response(build_traces_response(result), media_type)
@otlp_router.post("/v1/logs")
async def receive_logs(
request: Request,
- manager: StreamingTraceManager = Depends(require_trace_manager),
+ manager: LiveManager = Depends(require_trace_manager),
) -> Response:
"""OTLP HTTP log receiver (ExportLogsServiceRequest)."""
- body, media_type = await read_export_request(request, decode_protobuf_logs, "resourceLogs")
- result = await process_logs(body, manager)
+ decoded, media_type = await read_export_request(request, decode_logs_json, decode_logs_protobuf, "resourceLogs")
+ result = await ingest_logs(decoded, manager)
+ if result.overloaded:
+ raise overload_error("log records")
return build_export_response(build_logs_response(result), media_type)
diff --git a/src/agentevals/api/routes.py b/src/agentevals/api/routes.py
index a958990d..80156577 100644
--- a/src/agentevals/api/routes.py
+++ b/src/agentevals/api/routes.py
@@ -18,10 +18,10 @@
from agentevals import __version__
+from ..adk_bridge import invocation_to_dict, to_adk_invocations
from ..builtin_metrics import METRICS_NEEDING_EXPECTED, METRICS_NEEDING_GCP, METRICS_NEEDING_LLM
from ..config import EvalParams, EvalRunConfig
-from ..converter import convert_traces
-from ..extraction import get_extractor
+from ..genai.extract import extract_conversation
from ..loader import load_traces
from ..loader.otlp import OtlpJsonLoader
from ..resolvers import (
@@ -31,6 +31,7 @@
)
from ..runner import (
RunResult,
+ evaluation_groups,
load_eval_set,
load_eval_set_from_dict,
run_evaluation,
@@ -110,15 +111,48 @@ def _parse_credential_refs_form(raw: str | None) -> dict[str, dict[str, Any]] |
return refs
+_PAYLOAD_KEYS = frozenset({"args", "arguments", "response", "result", "output"})
+
+
def _camel_keys(obj: Any) -> Any:
- """Recursively convert dict keys from snake_case to camelCase."""
+ """Convert response structure keys to camelCase.
+
+ Values under payload keys (tool arguments, tool results) are user data and pass through
+ unchanged, so a tool argument named ``order_id`` stays ``order_id``.
+ """
if isinstance(obj, dict):
- return {to_camel(k): _camel_keys(v) for k, v in obj.items()}
+ return {to_camel(k): (v if k in _PAYLOAD_KEYS else _camel_keys(v)) for k, v in obj.items()}
if isinstance(obj, list):
return [_camel_keys(item) for item in obj]
return obj
+def _group_views(key: str, traces: list) -> tuple[dict[str, Any], dict[str, Any]]:
+ """Performance metrics and metadata of one evaluation group, as camelCase wire dicts."""
+ conversation = extract_conversation(traces, key)
+ return (
+ _camel_keys(extract_performance_metrics(conversation, traces)),
+ _camel_keys(extract_trace_metadata(traces, conversation)),
+ )
+
+
+def _performance_events(traces: list, group_by: str, eval_set) -> list[str]:
+ """One early ``performance_metrics`` event per evaluation group, keyed by the group's trace id."""
+ events = []
+ for key, members in evaluation_groups(traces, group_by, eval_set):
+ try:
+ perf_metrics, trace_metadata = _group_views(key, members)
+ evt = SSEPerformanceMetricsEvent(
+ trace_id=members[0].trace_id,
+ performance_metrics=perf_metrics,
+ trace_metadata=trace_metadata,
+ )
+ events.append(f"event: performance_metrics\ndata: {evt.model_dump_json(by_alias=True)}\n\n")
+ except Exception as e:
+ logger.error(f"Failed to extract early performance metrics for {key}: {e}")
+ return events
+
+
def _safe_upload_path(temp_dir: str, filename: str, idx: int = 0) -> str:
"""Build a save path inside ``temp_dir`` from a client-controlled filename.
@@ -201,10 +235,10 @@ async def get_config():
@router.get("/metrics", response_model=StandardResponse[list[MetricInfo]])
async def list_metrics():
- _METRICS_NEEDING_RUBRICS = {
- "rubric_based_final_response_quality_v1",
- "rubric_based_tool_use_quality_v1",
- }
+ from ..config import UNSUPPORTED_BUILTIN_METRICS
+
+ def _needs_rubrics(name: str) -> bool:
+ return name.startswith("rubric_based_")
_METRIC_CATEGORIES = {
"tool_trajectory_avg_score": "trajectory",
@@ -219,6 +253,7 @@ async def list_metrics():
"multi_turn_task_success_v1": "multi-turn",
"multi_turn_trajectory_quality_v1": "multi-turn",
"multi_turn_tool_use_quality_v1": "multi-turn",
+ "rubric_based_multi_turn_trajectory_quality_v1": "multi-turn",
}
try:
@@ -230,7 +265,7 @@ async def list_metrics():
metrics = []
for m in registry_metrics:
- if m.metric_name == "per_turn_user_simulator_quality_v1":
+ if m.metric_name in UNSUPPORTED_BUILTIN_METRICS:
continue
metrics.append(
@@ -240,9 +275,9 @@ async def list_metrics():
requires_eval_set=m.metric_name in METRICS_NEEDING_EXPECTED,
requires_llm=m.metric_name in METRICS_NEEDING_LLM,
requires_gcp=m.metric_name in METRICS_NEEDING_GCP,
- requires_rubrics=m.metric_name in _METRICS_NEEDING_RUBRICS,
+ requires_rubrics=_needs_rubrics(m.metric_name),
description=m.description or "No description available",
- working=m.metric_name not in _METRICS_NEEDING_RUBRICS,
+ working=not _needs_rubrics(m.metric_name),
)
)
@@ -406,27 +441,24 @@ def _session_name_from_filename(filename: str) -> str | None:
def _serialize_invocation(inv) -> dict[str, Any]:
- """Serialize an ADK Invocation to a camelCase dict matching the frontend Invocation type."""
- inv_dict: dict[str, Any] = {
- "invocation_id": inv.invocation_id,
- }
- if inv.user_content is not None:
- inv_dict["user_content"] = inv.user_content.model_dump(exclude_none=True)
- if inv.final_response is not None:
- inv_dict["final_response"] = inv.final_response.model_dump(exclude_none=True)
- if inv.intermediate_data is not None:
- inv_dict["intermediate_data"] = inv.intermediate_data.model_dump(exclude_none=True)
- if inv.creation_timestamp is not None:
- inv_dict["creation_timestamp"] = inv.creation_timestamp
- return _camel_keys(inv_dict)
+ """An ADK invocation as the camelCase dict the frontend ``Invocation`` type expects."""
+ return _camel_keys(invocation_to_dict(inv))
@router.post("/convert", response_model=StandardResponse[ConvertTracesData])
async def convert_trace_files(
trace_files: list[UploadFile] = File(...),
trace_format: str | None = Form(None),
+ group_by: str = Form("trace"),
):
- """Convert trace files to invocations and metadata without running evaluation."""
+ """Convert trace files to invocations and metadata without running evaluation.
+
+ One entry per trace by default. ``group_by`` (``conversation`` or ``auto``, with the evaluation
+ meaning) returns one entry per evaluation group instead, keyed by the group's earliest trace
+ and listing its members in ``traceIds``, so a client can show what an evaluation will score.
+ """
+ if group_by not in ("trace", "conversation", "auto"):
+ raise HTTPException(status_code=400, detail="group_by must be one of trace, conversation, auto")
temp_dir = tempfile.mkdtemp()
try:
saved_files: list[tuple[str, str]] = [] # (path, original_filename)
@@ -478,33 +510,26 @@ async def convert_trace_files(
detail += ". Errors: " + "; ".join(load_warnings)
raise HTTPException(status_code=400, detail=detail)
- conversion_results = convert_traces(all_traces)
- trace_map = {t.trace_id: t for t in all_traces}
-
entries: list[TraceConversionEntry] = []
- for conv_result in conversion_results:
- invocations = [_serialize_invocation(inv) for inv in conv_result.invocations]
- warnings = list(conv_result.warnings)
-
- trace = trace_map.get(conv_result.trace_id)
- meta = TraceConversionMetadata()
- if trace:
- meta_dict = extract_trace_metadata(trace)
- filename = trace_to_filename.get(conv_result.trace_id, "")
- session_name = _session_name_from_filename(filename)
- meta = TraceConversionMetadata(
- agent_name=meta_dict.get("agent_name"),
- model=meta_dict.get("model"),
- schema_version=meta_dict.get("schema_version"),
- start_time=meta_dict.get("start_time"),
- user_input_preview=meta_dict.get("user_input_preview"),
- final_output_preview=meta_dict.get("final_output_preview"),
- session_name=session_name,
- )
-
+ for key, members in evaluation_groups(all_traces, group_by):
+ first = members[0]
+ conversation = extract_conversation(members, key)
+ invocations = [_serialize_invocation(inv) for inv in to_adk_invocations(conversation.turns)]
+ warnings = [w for t in members for w in t.warnings] + [w for t in conversation.turns for w in t.warnings]
+ meta_dict = extract_trace_metadata(members, conversation)
+ meta = TraceConversionMetadata(
+ agent_name=meta_dict.get("agent_name"),
+ model=meta_dict.get("model"),
+ schema_version=meta_dict.get("schema_version"),
+ start_time=meta_dict.get("start_time"),
+ user_input_preview=meta_dict.get("user_input_preview"),
+ final_output_preview=meta_dict.get("final_output_preview"),
+ session_name=_session_name_from_filename(trace_to_filename.get(first.trace_id, "")),
+ )
entries.append(
TraceConversionEntry(
- trace_id=conv_result.trace_id,
+ trace_id=first.trace_id,
+ trace_ids=[t.trace_id for t in members],
invocations=invocations,
warnings=warnings,
metadata=meta,
@@ -729,21 +754,22 @@ async def event_generator():
yield f"data: {SSEErrorEvent(error=f'Invalid config: {exc}').model_dump_json(by_alias=True)}\n\n"
return
+ loaded_traces = []
+ load_errors: list[str] = []
for trace_file_path in trace_paths:
try:
- traces = load_traces(trace_file_path, format=eval_config.trace_format)
- for trace in traces:
- extractor = get_extractor(trace)
- perf_metrics = _camel_keys(extract_performance_metrics(trace, extractor))
- trace_metadata = _camel_keys(extract_trace_metadata(trace, extractor))
- evt = SSEPerformanceMetricsEvent(
- trace_id=trace.trace_id,
- performance_metrics=perf_metrics,
- trace_metadata=trace_metadata,
- )
- yield f"event: performance_metrics\ndata: {evt.model_dump_json(by_alias=True)}\n\n"
- except Exception as e:
- logger.error(f"Failed to extract early performance metrics from {trace_file_path}: {e}")
+ loaded_traces.extend(load_traces(trace_file_path, format=eval_config.trace_format))
+ except Exception as exc:
+ load_errors.append(f"Failed to load trace file '{os.path.basename(trace_file_path)}': {exc}")
+ stream_eval_set = None
+ if eval_set_path:
+ try:
+ stream_eval_set = load_eval_set(eval_set_path)
+ except Exception as exc:
+ load_errors.append(f"Failed to load eval set: {exc}")
+
+ for event in _performance_events(loaded_traces, eval_config.group_by, stream_eval_set):
+ yield event
queue: asyncio.Queue = asyncio.Queue()
@@ -754,7 +780,18 @@ async def trace_progress_callback(trace_result):
await queue.put(("trace_progress", trace_result))
async def run_with_progress():
- result = await run_evaluation(eval_config, progress_callback, trace_progress_callback)
+ if loaded_traces:
+ result = await run_evaluation_from_traces(
+ traces=loaded_traces,
+ config=eval_config,
+ eval_set=stream_eval_set,
+ progress_callback=progress_callback,
+ trace_progress_callback=trace_progress_callback,
+ )
+ else:
+ result = RunResult(errors=["No traces loaded."])
+ if load_errors:
+ result.errors = load_errors + result.errors
await queue.put(("done", result))
try:
@@ -905,19 +942,8 @@ async def event_generator():
yield _sse_error(exc.detail)
return
- for trace in traces:
- try:
- extractor = get_extractor(trace)
- perf_metrics = _camel_keys(extract_performance_metrics(trace, extractor))
- trace_metadata = _camel_keys(extract_trace_metadata(trace, extractor))
- evt = SSEPerformanceMetricsEvent(
- trace_id=trace.trace_id,
- performance_metrics=perf_metrics,
- trace_metadata=trace_metadata,
- )
- yield f"event: performance_metrics\ndata: {evt.model_dump_json(by_alias=True)}\n\n"
- except Exception as e:
- logger.error(f"Failed to extract early performance metrics: {e}")
+ for event in _performance_events(traces, request.config.group_by, eval_set):
+ yield event
queue: asyncio.Queue = asyncio.Queue()
diff --git a/src/agentevals/api/streaming_routes.py b/src/agentevals/api/streaming_routes.py
index e1803b55..3217febf 100644
--- a/src/agentevals/api/streaming_routes.py
+++ b/src/agentevals/api/streaming_routes.py
@@ -12,12 +12,11 @@
from fastapi.responses import FileResponse
from pydantic import BaseModel, ConfigDict, Field
-from ..config import BuiltinMetricDef, EvalParams, EvalRunConfig, EvaluatorDef
-from ..converter import convert_traces
-from ..loader.otlp import OtlpJsonLoader
-from ..runner import RunResult, run_evaluation
+from ..adk_bridge import eval_set_from_turns, load_eval_set_from_dict
+from ..config import BuiltinMetricDef, EvalParams, EvaluatorDef
+from ..genai.extract import extract_conversation
+from ..runner import RunResult, run_evaluation_from_traces
from ..streaming.exports import EXPORT_DIR, export_name
-from ..trace_attrs import OTEL_GENAI_INPUT_MESSAGES, OTEL_GENAI_REQUEST_MODEL
from .dependencies import require_trace_manager
from .models import (
CreateEvalSetData,
@@ -30,7 +29,7 @@
)
if TYPE_CHECKING:
- from ..streaming.ws_server import StreamingTraceManager
+ from ..streaming.manager import LiveManager
logger = logging.getLogger(__name__)
@@ -60,7 +59,7 @@ class GetTraceRequest(BaseModel):
async def _do_create_eval_set(
- request: CreateEvalSetRequest, manager: StreamingTraceManager
+ request: CreateEvalSetRequest, manager: LiveManager
) -> StandardResponse[CreateEvalSetData]:
"""Shared logic for creating an EvalSet from a session's trace."""
session = manager.sessions.get(request.session_id)
@@ -68,67 +67,23 @@ async def _do_create_eval_set(
raise HTTPException(status_code=404, detail="Session not found")
try:
- trace_file = await manager._save_spans_to_temp_file(session)
- logger.debug(
- "Session %s: %d spans, %d logs saved to %s",
- request.session_id,
- len(session.spans),
- len(session.logs),
- trace_file,
- )
- loader = OtlpJsonLoader()
- traces = loader.load(str(trace_file))
-
+ traces = manager.session_traces(session)
if not traces:
raise HTTPException(
status_code=400,
detail=(
- f"No traces found in session (spans={len(session.spans)}, "
- f"logs={len(session.logs)}). If using the SDK with langchain/openai, "
+ f"No traces found in session (spans={session.span_count}, "
+ f"logs={session.log_count}). If using the SDK with langchain/openai, "
f"ensure opentelemetry-instrumentation-openai-v2 is installed."
),
)
-
- conversion_results = convert_traces(traces)
- if not conversion_results:
- raise HTTPException(status_code=400, detail="Failed to convert trace")
-
- all_invocations = []
- for conv_result in conversion_results:
- all_invocations.extend(conv_result.invocations)
-
- logger.debug(f"Creating eval set from {len(all_invocations)} invocations")
- for i, inv in enumerate(all_invocations):
- tool_count = len(inv.intermediate_data.tool_uses) if inv.intermediate_data else 0
- logger.debug(f" Invocation {i}: {tool_count} tool calls")
-
- conversation = []
- for inv in all_invocations:
- inv_dict = {
- "invocation_id": inv.invocation_id,
- "user_content": inv.user_content.model_dump(exclude_none=True) if inv.user_content else None,
- }
- if inv.final_response:
- inv_dict["final_response"] = inv.final_response.model_dump(exclude_none=True)
- if inv.intermediate_data:
- inv_dict["intermediate_data"] = inv.intermediate_data.model_dump(exclude_none=True)
-
- conversation.append(inv_dict)
-
- eval_set = {
- "eval_set_id": request.eval_set_id,
- "eval_cases": [
- {
- "eval_id": "case_1",
- "conversation": conversation,
- }
- ],
- }
-
+ conversation = extract_conversation(traces, request.session_id)
+ if not conversation.turns:
+ raise HTTPException(status_code=400, detail="No turns found in session")
return StandardResponse(
data=CreateEvalSetData(
- eval_set=eval_set,
- num_invocations=len(all_invocations),
+ eval_set=eval_set_from_turns(request.eval_set_id, conversation.turns),
+ num_invocations=len(conversation.turns),
)
)
@@ -140,29 +95,16 @@ async def _do_create_eval_set(
@streaming_router.get("/sessions", response_model=StandardResponse[list[SessionInfo]])
-async def list_sessions(manager: StreamingTraceManager = Depends(require_trace_manager)):
- sessions_data = []
-
- for session_id, session in manager.sessions.items():
- info = SessionInfo(
- session_id=session_id,
- trace_id=session.trace_id,
- eval_set_id=session.eval_set_id,
- span_count=len(session.spans),
- is_complete=session.is_complete,
- started_at=session.started_at.isoformat(),
- metadata=session.metadata,
- invocations=session.invocations if session.is_complete and session.invocations else None,
- )
- sessions_data.append(info)
-
- return StandardResponse(data=sessions_data)
+async def list_sessions(manager: LiveManager = Depends(require_trace_manager)):
+ return StandardResponse(
+ data=[manager.session_info(session, with_invocations=True) for session in manager.sessions.values()]
+ )
@streaming_router.post("/create-eval-set", response_model=StandardResponse[CreateEvalSetData])
async def create_eval_set_from_session(
request: CreateEvalSetRequest,
- manager: StreamingTraceManager = Depends(require_trace_manager),
+ manager: LiveManager = Depends(require_trace_manager),
):
"""Convert a session's trace into an EvalSet."""
return await _do_create_eval_set(request, manager)
@@ -209,14 +151,13 @@ async def _persist_sessions_run(
async def evaluate_sessions(
request: EvaluateSessionsRequest,
http_request: Request,
- manager: StreamingTraceManager = Depends(require_trace_manager),
+ manager: LiveManager = Depends(require_trace_manager),
):
"""Evaluate all sessions against a golden session converted to EvalSet."""
golden_session = manager.sessions.get(request.golden_session_id)
if not golden_session:
raise HTTPException(status_code=404, detail="Golden session not found")
- eval_set_file = None
try:
eval_set_response = await _do_create_eval_set(
CreateEvalSetRequest(
@@ -225,14 +166,8 @@ async def evaluate_sessions(
),
manager,
)
-
- import tempfile
-
- eval_set_file = tempfile.NamedTemporaryFile(
- mode="w", suffix=".json", delete=False, dir=str(EXPORT_DIR), encoding="utf-8"
- )
- json.dump(eval_set_response.data.eval_set, eval_set_file)
- eval_set_file.close()
+ eval_set = load_eval_set_from_dict(eval_set_response.data.eval_set)
+ params = EvalParams(evaluators=request.evaluators)
sessions_to_evaluate = [
(session_id, session) for session_id, session in manager.sessions.items() if session.is_complete
@@ -245,16 +180,8 @@ async def evaluate_sessions(
async def eval_one_session(session_id: str, session) -> tuple[SessionEvalResult, RunResult | None]:
async with sem:
try:
- trace_file = await manager._save_spans_to_temp_file(session)
-
- config = EvalRunConfig(
- trace_files=[str(trace_file)],
- trace_format="otlp-json",
- eval_set_file=eval_set_file.name,
- evaluators=request.evaluators,
- )
-
- eval_result = await run_evaluation(config)
+ traces = manager.session_traces(session)
+ eval_result = await run_evaluation_from_traces(traces, params, eval_set, group_key=session_id)
if eval_result.trace_results:
trace_result = eval_result.trace_results[0]
@@ -277,9 +204,8 @@ async def eval_one_session(session_id: str, session) -> tuple[SessionEvalResult,
),
eval_result,
)
- else:
- logger.warning("No trace results for session %s", session_id)
- return SessionEvalResult(session_id=session_id, error="No trace results"), None
+ logger.warning("No trace results for session %s", session_id)
+ return SessionEvalResult(session_id=session_id, error="No trace results"), None
except Exception as exc:
logger.error(f"Failed to evaluate session {session_id}: {exc}", exc_info=True)
@@ -312,20 +238,12 @@ async def eval_one_session(session_id: str, session) -> tuple[SessionEvalResult,
except Exception as exc:
logger.exception("Failed to evaluate sessions")
raise HTTPException(status_code=500, detail=str(exc)) from exc
- finally:
- # This eval set is consumed only by run_evaluation above and is never
- # served for download, so remove it once evaluation completes.
- if eval_set_file is not None:
- try:
- os.unlink(eval_set_file.name)
- except OSError:
- pass
@streaming_router.post("/prepare-evaluation", response_model=StandardResponse[PrepareEvaluationData])
async def prepare_evaluation(
request: PrepareEvaluationRequest,
- manager: StreamingTraceManager = Depends(require_trace_manager),
+ manager: LiveManager = Depends(require_trace_manager),
):
"""Prepare evaluation by saving traces and eval set as downloadable files."""
golden_session = manager.sessions.get(request.golden_session_id)
@@ -351,7 +269,9 @@ async def prepare_evaluation(
if not session or not session.is_complete:
continue
- trace_file = await manager._save_spans_to_temp_file(session)
+ trace_file = EXPORT_DIR / export_name(session_id, prefix="agentevals_", suffix=".json")
+ with open(trace_file, "w", encoding="utf-8") as f: # noqa: ASYNC230
+ json.dump(manager.session_document(session), f)
trace_files.append(
{
"session_id": session_id,
@@ -397,46 +317,35 @@ async def download_file(filename: str):
return FileResponse(candidate, media_type="application/json", filename=filename)
+@streaming_router.get("/sessions/{session_id}/otlp")
+async def export_session_otlp(session_id: str, manager: LiveManager = Depends(require_trace_manager)) -> dict:
+ """The session's spans and logs as one OTLP/JSON document (``resourceSpans`` and ``resourceLogs``).
+
+ Every resource carries ``agentevals.session_name``, so the document loads back through
+ ``agentevals run`` as one conversation.
+ """
+ session = manager.sessions.get(session_id)
+ if not session:
+ raise HTTPException(status_code=404, detail="Session not found")
+ return manager.session_document(session)
+
+
@streaming_router.post("/get-trace", response_model=StandardResponse[GetTraceData])
async def get_trace(
request: GetTraceRequest,
- manager: StreamingTraceManager = Depends(require_trace_manager),
+ manager: LiveManager = Depends(require_trace_manager),
):
+ """The session export (see ``/sessions/{id}/otlp``) as a string, for clients that upload it as a file."""
session = manager.sessions.get(request.session_id)
if not session:
raise HTTPException(status_code=404, detail="Session not found")
try:
- has_genai_spans = any(
- span.get("attributes", [])
- and any(
- attr.get("key") in (OTEL_GENAI_REQUEST_MODEL, OTEL_GENAI_INPUT_MESSAGES)
- for attr in span.get("attributes", [])
- )
- for span in session.spans
- )
-
- if has_genai_spans and not session.logs:
- logger.warning(
- "Session %s has GenAI spans but no logs. "
- "Message content will be missing unless spans already enriched.",
- request.session_id,
- )
-
- # Reuse the canonical serializer so the trace handed to the UI (and
- # re-uploaded to /api/evaluate) carries service.name, exactly like the
- # evaluate-sessions path. Serializing spans here independently would
- # drop the resource attribute and lose agent identity on the run.
- trace_file = await manager._save_spans_to_temp_file(session)
- with open(trace_file, encoding="utf-8") as f: # noqa: ASYNC230
- trace_content = f.read()
- num_spans = sum(1 for line in trace_content.splitlines() if line.strip())
-
return StandardResponse(
data=GetTraceData(
session_id=request.session_id,
- trace_content=trace_content,
- num_spans=num_spans,
+ trace_content=json.dumps(manager.session_document(session)),
+ num_spans=session.span_count,
)
)
diff --git a/src/agentevals/builtin_metrics.py b/src/agentevals/builtin_metrics.py
index e65b1eb5..6f869ff2 100644
--- a/src/agentevals/builtin_metrics.py
+++ b/src/agentevals/builtin_metrics.py
@@ -377,21 +377,20 @@ async def evaluate_builtin_metric(
match_type: str | None = None,
credential_ref: str | None = None,
judge_base_url: str | None = None,
-) -> dict[str, Any]:
- """Evaluate a single built-in ADK metric.
+ expected_reason: str | None = None,
+):
+ """Evaluate a single built-in ADK metric and return a ``MetricResult``.
- Returns a dict with keys: metric_name, score, eval_status,
- per_invocation_scores, error, details.
+ A metric that compares against a golden conversation is ``NOT_EVALUATED`` when none was
+ selected, with the reason in ``details``; it is never scored against an arbitrary case.
"""
from .runner import MetricResult
if metric_name in METRICS_NEEDING_EXPECTED and not expected_invocations:
return MetricResult(
metric_name=metric_name,
- error=(
- f"Metric '{metric_name}' requires expected invocations "
- f"(golden eval set), but none were provided or matched."
- ),
+ eval_status="NOT_EVALUATED",
+ details={"reason": expected_reason or "no eval set provided"},
)
try:
@@ -427,6 +426,7 @@ async def evaluate_builtin_metric(
)
per_inv_scores = [r.score for r in eval_result.per_invocation_results]
+ per_inv_statuses = [r.eval_status.name for r in eval_result.per_invocation_results]
details = None
if metric_name == "tool_trajectory_avg_score":
@@ -437,6 +437,7 @@ async def evaluate_builtin_metric(
score=eval_result.overall_score,
eval_status=eval_result.overall_eval_status.name,
per_invocation_scores=per_inv_scores,
+ per_invocation_statuses=per_inv_statuses,
details=details,
)
@@ -445,4 +446,5 @@ async def evaluate_builtin_metric(
return MetricResult(
metric_name=metric_name,
error=str(exc),
+ error_type=type(exc).__name__,
)
diff --git a/src/agentevals/cli.py b/src/agentevals/cli.py
index da260554..556c2771 100644
--- a/src/agentevals/cli.py
+++ b/src/agentevals/cli.py
@@ -131,6 +131,25 @@ def main(verbose: int) -> None:
default=None,
help="Path to an eval config YAML file defining evaluators.",
)
+@click.option(
+ "--group-by",
+ type=click.Choice(["auto", "trace", "conversation"]),
+ default=None,
+ help=(
+ "Evaluation unit. 'conversation' evaluates traces sharing agentevals.session_name, "
+ "gen_ai.conversation.id or session.id together. 'auto' (default) does so when a trace "
+ "carries agentevals.session_name or the eval set has multi turn cases."
+ ),
+)
+@click.option(
+ "--emit-otel",
+ is_flag=True,
+ help=(
+ "Emit results as OpenTelemetry gen_ai.evaluation.result log events, parented to the evaluated "
+ "spans (also AGENTEVALS_EVALUATION_EVENTS=true). The exporter is configured by the standard "
+ "OTEL_EXPORTER_OTLP_* variables."
+ ),
+)
def run(
trace_files: tuple[str, ...],
eval_set: str | None,
@@ -141,6 +160,8 @@ def run(
trajectory_match_type: str | None,
output: str,
config_file: str | None,
+ group_by: str | None,
+ emit_otel: bool,
) -> None:
"""Evaluate trace file(s) against the configured evaluators."""
from .config import EvalRunConfig, apply_builtin_overrides, make_builtin_evaluator_entries
@@ -190,8 +211,21 @@ def run(
config.trace_format = trace_format
if output != "table":
config.output_format = output
+ if group_by is not None:
+ config.group_by = group_by
- result = asyncio.run(run_evaluation(config))
+ from . import evaluation_events as emit
+
+ try:
+ emit.validate_env()
+ except ValueError as exc:
+ raise click.UsageError(str(exc)) from exc
+ if emit_otel:
+ emit.enable()
+ try:
+ result = asyncio.run(run_evaluation(config))
+ finally:
+ emit.shutdown()
formatted = format_results(result, fmt=config.output_format)
click.echo(formatted)
@@ -514,14 +548,16 @@ async def _run_servers(
from .api.app import create_app
from .api.otlp_app import create_otlp_app
- from .streaming.ws_server import StreamingTraceManager
+ from .streaming.manager import LiveManager
shared_kwargs: dict = {
"host": host,
"log_level": log_level,
}
- mgr = StreamingTraceManager()
+ from . import evaluation_events as emit
+
+ mgr = LiveManager(emitter_instance_id=emit.instance_id() if emit.enabled() else None)
main_app = create_app(trace_manager=mgr, enable_streaming=True)
otlp_app = create_otlp_app(trace_manager=mgr)
@@ -563,7 +599,7 @@ async def _run_servers(
@click.option(
"--dev",
is_flag=True,
- help="Enable dev mode with WebSocket support for live streaming.",
+ help="Enable dev mode for live streaming (prints the receiver endpoints).",
)
@click.option(
"--host",
@@ -605,6 +641,15 @@ async def _run_servers(
is_flag=True,
help="Run in headless mode (no browser launch).",
)
+@click.option(
+ "--emit-otel",
+ is_flag=True,
+ help=(
+ "Emit results as OpenTelemetry gen_ai.evaluation.result log events, parented to the evaluated "
+ "spans (also AGENTEVALS_EVALUATION_EVENTS=true). The exporter is configured by the standard "
+ "OTEL_EXPORTER_OTLP_* variables."
+ ),
+)
@click.option(
"-v",
"--verbose",
@@ -620,6 +665,7 @@ def serve(
mcp_port: int | None,
eval_sets: str | None,
headless: bool,
+ emit_otel: bool,
verbose: int,
) -> None:
"""Start the agentevals API server.
@@ -640,6 +686,14 @@ def serve(
if headless:
os.environ["AGENTEVALS_HEADLESS"] = "1"
+ if emit_otel:
+ os.environ["AGENTEVALS_EVALUATION_EVENTS"] = "true"
+ from . import evaluation_events as emit
+
+ try:
+ emit.validate_env()
+ except ValueError as exc:
+ raise click.UsageError(str(exc)) from exc
static_dir = Path(__file__).parent / "_static"
has_ui = static_dir.is_dir() and (static_dir / "index.html").exists()
@@ -657,7 +711,6 @@ def serve(
click.echo("agentevals dev server starting...")
click.echo(f" OTLP HTTP: http://{host}:{otlp_http_port} (OTEL_EXPORTER_OTLP_ENDPOINT default)")
click.echo(f" OTLP gRPC: {host}:{otlp_grpc_port} (OTEL_EXPORTER_OTLP_PROTOCOL=grpc)")
- click.echo(f" WebSocket: ws://{host}:{port}/ws/traces")
click.echo(f" API: http://{host}:{port}/api")
if mcp_port is not None:
click.echo(f" MCP: http://{host}:{mcp_port}/mcp")
diff --git a/src/agentevals/config.py b/src/agentevals/config.py
index edbe85f4..0c773a5c 100644
--- a/src/agentevals/config.py
+++ b/src/agentevals/config.py
@@ -18,6 +18,13 @@ def _normalize_trajectory_match_type(v: str | None) -> str | None:
return v.upper() if v is not None else v
+UNSUPPORTED_BUILTIN_METRICS = {
+ "per_turn_user_simulator_quality_v1": "it scores a simulated user, and agentevals evaluates recorded traces",
+}
+
+GroupBy = Literal["auto", "trace", "conversation"]
+
+
class BuiltinMetricDef(BaseModel):
"""A built-in ADK metric, optionally with threshold/judge overrides."""
@@ -42,6 +49,13 @@ class BuiltinMetricDef(BaseModel):
def _validate_trajectory_match_type(cls, v: str | None) -> str | None:
return _normalize_trajectory_match_type(v)
+ @field_validator("name")
+ @classmethod
+ def _validate_name(cls, v: str) -> str:
+ if v in UNSUPPORTED_BUILTIN_METRICS:
+ raise ValueError(f"Built-in metric '{v}' is not supported: {UNSUPPORTED_BUILTIN_METRICS[v]}")
+ return v
+
class BaseEvaluatorDef(BaseModel):
"""Shared fields for all executable evaluator definitions."""
@@ -218,6 +232,16 @@ def _validate_evaluators(cls, v: list[EvaluatorDef]) -> list[EvaluatorDef]:
description="Maximum number of concurrent evaluator executions (for example LLM API calls).",
)
+ group_by: GroupBy = Field(
+ default="auto",
+ description=(
+ "How traces form evaluation units. 'trace': every trace on its own. 'conversation': traces "
+ "sharing agentevals.session_name, gen_ai.conversation.id or session.id are evaluated together. "
+ "'auto': conversation when any trace carries agentevals.session_name or the eval set has a "
+ "multi turn case, otherwise trace."
+ ),
+ )
+
class EvalRunConfig(EvalParams):
"""Full configuration for file-based evaluation runs."""
diff --git a/src/agentevals/converter.py b/src/agentevals/converter.py
deleted file mode 100644
index 75433698..00000000
--- a/src/agentevals/converter.py
+++ /dev/null
@@ -1,319 +0,0 @@
-"""Convert trace spans into ADK Invocation objects.
-
-Supports two trace formats:
-1. ADK format (gcp.vertex.agent scope with ADK-specific attributes)
-2. GenAI semantic conventions (standard gen_ai.* attributes from LangChain, Strands, etc.)
-
-Automatically detects the format and routes to the appropriate converter.
-Format detection checks span attributes and falls back to checking all spans if needed.
-Explicit format can be specified via the format parameter to convert_trace().
-"""
-
-from __future__ import annotations
-
-import logging
-from dataclasses import dataclass, field
-from typing import Any
-
-from google.adk.evaluation.eval_case import IntermediateData, Invocation
-from google.genai import types as genai_types
-
-from .extraction import (
- extract_agent_response_from_attrs,
- extract_tool_call_from_span,
- extract_tool_result_from_span,
- extract_user_text_from_attrs,
- find_adk_llm_spans_in,
- get_extractor,
- has_adk_descendant,
- is_adk_scope,
- parse_json,
-)
-from .loader.base import Span, Trace
-from .trace_attrs import (
- ADK_INVOCATION_ID,
- ADK_LLM_REQUEST,
- ADK_LLM_RESPONSE,
- OTEL_GENAI_AGENT_NAME,
-)
-
-logger = logging.getLogger(__name__)
-
-
-@dataclass
-class ConversionResult:
- trace_id: str
- invocations: list[Invocation] = field(default_factory=list)
- warnings: list[str] = field(default_factory=list)
-
-
-def convert_trace(trace: Trace, format: str | None = None) -> ConversionResult:
- """Convert a trace to Invocation objects.
-
- Args:
- trace: The trace to convert
- format: Optional explicit format ("adk" or "genai"). If None, auto-detects.
-
- Returns:
- ConversionResult with invocations and any warnings
- """
- if format is None:
- trace_format = _detect_trace_format(trace)
- logger.info(f"Auto-detected trace format: {trace_format} for trace {trace.trace_id}")
- else:
- trace_format = format
- logger.info(f"Using explicit trace format: {trace_format} for trace {trace.trace_id}")
-
- if trace_format == "genai":
- from .genai_converter import convert_genai_trace
-
- return convert_genai_trace(trace)
- else:
- return _convert_adk_trace(trace)
-
-
-def _detect_trace_format(trace: Trace) -> str:
- """Detect trace format by delegating to the extractor registry."""
- return get_extractor(trace).format_name()
-
-
-def _convert_adk_trace(trace: Trace) -> ConversionResult:
- result = ConversionResult(trace_id=trace.trace_id)
-
- invoke_spans = _find_adk_spans(trace, "invoke_agent")
- if not invoke_spans:
- result.warnings.append(f"Trace {trace.trace_id}: no invoke_agent spans found")
- return result
-
- for invoke_span in invoke_spans:
- try:
- invocation = _convert_invoke_span(invoke_span)
- result.invocations.append(invocation)
- except Exception as exc:
- msg = f"Trace {trace.trace_id}: failed to convert invoke_agent span {invoke_span.span_id}: {exc}"
- logger.warning(msg)
- result.warnings.append(msg)
-
- return result
-
-
-def convert_traces(traces: list[Trace]) -> list[ConversionResult]:
- return [convert_trace(t) for t in traces]
-
-
-def _find_adk_spans(trace: Trace, operation: str) -> list[Span]:
- """Find ADK-instrumented spans matching an operation prefix.
-
- Detection delegates to ``is_adk_scope``, which accepts either the OTel
- scope marker, the ``gen_ai.system`` semconv attribute, or any
- ``gcp.vertex.agent.*`` custom attribute. The fallbacks matter for
- Tempo-exported traces where scope info gets lost during compaction.
-
- For ``invoke_agent`` we additionally accept spans whose subtree is ADK
- instrumented even when the parent itself lost its markers — Tempo's
- compactor can strip scope info on the parent while children retain
- their ``gcp.vertex.agent.*`` attributes.
- """
- matches = []
- for span in trace.all_spans:
- if not span.operation_name.startswith(operation):
- continue
- if is_adk_scope(span):
- matches.append(span)
- continue
- if operation == "invoke_agent" and has_adk_descendant(span):
- matches.append(span)
- matches.sort(key=lambda s: s.start_time)
- return matches
-
-
-def _convert_invoke_span(invoke_span: Span) -> Invocation:
- llm_spans = find_adk_llm_spans_in(invoke_span)
- if not llm_spans:
- raise ValueError(
- f"invoke_agent span {invoke_span.span_id} has no converter-compatible ADK LLM descendants; "
- "expected call_llm or ADK generate_content spans"
- )
-
- tool_spans = _find_children_by_op(invoke_span, "execute_tool")
-
- user_content = _extract_user_content(llm_spans[0])
- final_response = _extract_final_response(llm_spans[-1])
- tool_uses, tool_responses = _extract_tool_trajectory(llm_spans, tool_spans)
-
- intermediate_data = IntermediateData(
- tool_uses=tool_uses,
- tool_responses=tool_responses,
- )
-
- invocation_id = invoke_span.get_tag(ADK_INVOCATION_ID, invoke_span.span_id)
-
- return Invocation(
- invocation_id=invocation_id,
- user_content=user_content,
- final_response=final_response,
- intermediate_data=intermediate_data,
- creation_timestamp=invoke_span.start_time / 1_000_000.0,
- )
-
-
-def _find_children_by_op(root: Span, op_prefix: str) -> list[Span]:
- results: list[Span] = []
- _walk(root, op_prefix, results)
- results.sort(key=lambda s: s.start_time)
- return results
-
-
-def _walk(span: Span, op_prefix: str, acc: list[Span]) -> None:
- for child in span.children:
- if child.operation_name.startswith(op_prefix):
- acc.append(child)
- _walk(child, op_prefix, acc)
-
-
-def _extract_user_content(first_call_llm: Span) -> genai_types.Content:
- """Extract user input from the first call_llm span's attributes via shared extractor."""
- text = extract_user_text_from_attrs(first_call_llm.tags)
- if text:
- return genai_types.Content(
- role="user",
- parts=[genai_types.Part(text=text)],
- )
- llm_request_raw = first_call_llm.get_tag(ADK_LLM_REQUEST, "{}")
- llm_request = parse_json(llm_request_raw)
- for content_dict in llm_request.get("contents", llm_request.get("Contents", [])):
- if content_dict.get("role") == "user":
- return _content_from_dict(content_dict)
- raise ValueError(f"call_llm span {first_call_llm.span_id}: no user content found in llm_request")
-
-
-def _extract_final_response(last_call_llm: Span) -> genai_types.Content:
- """Extract final text response from the last call_llm span's attributes via shared extractor."""
- text = extract_agent_response_from_attrs(last_call_llm.tags)
- if text:
- return genai_types.Content(
- role="model",
- parts=[genai_types.Part(text=text)],
- )
- llm_response_raw = last_call_llm.get_tag(ADK_LLM_RESPONSE, "{}")
- llm_response = parse_json(llm_response_raw)
- content_dict = llm_response.get("content", llm_response.get("Content", {}))
- if not content_dict:
- raise ValueError(f"call_llm span {last_call_llm.span_id}: no content in llm_response")
- logger.warning(
- "call_llm span %s: last llm_response has no text parts, may not be the actual final response",
- last_call_llm.span_id,
- )
- return _content_from_dict(content_dict)
-
-
-def _extract_tool_trajectory(
- call_llm_spans: list[Span],
- tool_spans: list[Span],
-) -> tuple[list[genai_types.FunctionCall], list[genai_types.FunctionResponse]]:
- """Extract tool calls and responses.
-
- Prefers execute_tool spans (which have actual execution results) over
- function_call parts in call_llm responses (which only have the LLM's
- request to call the tool, not the result).
- """
- tool_uses: list[genai_types.FunctionCall] = []
- tool_responses: list[genai_types.FunctionResponse] = []
-
- if tool_spans:
- for tool_span in tool_spans:
- fc, fr = _extract_from_tool_span(tool_span)
- if fc:
- tool_uses.append(fc)
- if fr:
- tool_responses.append(fr)
- else:
- for call_llm in call_llm_spans:
- fcs = _extract_function_calls_from_llm_response(call_llm)
- tool_uses.extend(fcs)
-
- return tool_uses, tool_responses
-
-
-def _extract_from_tool_span(
- tool_span: Span,
-) -> tuple[genai_types.FunctionCall | None, genai_types.FunctionResponse | None]:
- tool_call = extract_tool_call_from_span(tool_span)
- if tool_call is None:
- logger.warning("execute_tool span %s: no tool name found", tool_span.span_id)
- return None, None
-
- fc = genai_types.FunctionCall(
- name=tool_call["name"],
- args=tool_call["args"],
- id=tool_call["id"],
- )
-
- tool_result = extract_tool_result_from_span(tool_span)
- fr = None
- if tool_result:
- fr = genai_types.FunctionResponse(
- name=tool_call["name"],
- response=tool_result["response"],
- id=tool_call["id"],
- )
-
- return fc, fr
-
-
-def _extract_function_calls_from_llm_response(
- call_llm: Span,
-) -> list[genai_types.FunctionCall]:
- llm_response_raw = call_llm.get_tag(ADK_LLM_RESPONSE, "{}")
- llm_response = parse_json(llm_response_raw)
-
- content_dict = llm_response.get("content", llm_response.get("Content", {}))
- parts = content_dict.get("parts", [])
-
- calls = []
- for part in parts:
- fc_dict = part.get("function_call", part.get("functionCall"))
- if fc_dict:
- calls.append(
- genai_types.FunctionCall(
- name=fc_dict.get("name", ""),
- args=fc_dict.get("args", {}),
- id=fc_dict.get("id"),
- )
- )
- return calls
-
-
-def _content_from_dict(content_dict: dict[str, Any]) -> genai_types.Content:
- """Build a genai Content from a raw dict. Handles text, function_call, and function_response parts."""
- role = content_dict.get("role", "user")
- parts_dicts = content_dict.get("parts", [])
-
- parts: list[genai_types.Part] = []
- for p in parts_dicts:
- if "text" in p:
- parts.append(genai_types.Part(text=p.get("text")))
- elif "function_call" in p or "functionCall" in p:
- fc = p.get("function_call", p.get("functionCall"))
- parts.append(
- genai_types.Part(
- function_call=genai_types.FunctionCall(
- name=fc.get("name", ""),
- args=fc.get("args", {}),
- id=fc.get("id"),
- )
- )
- )
- elif "function_response" in p or "functionResponse" in p:
- fr = p.get("function_response", p.get("functionResponse"))
- parts.append(
- genai_types.Part(
- function_response=genai_types.FunctionResponse(
- name=fr.get("name", ""),
- response=fr.get("response", {}),
- id=fr.get("id"),
- )
- )
- )
-
- return genai_types.Content(role=role, parts=parts)
diff --git a/src/agentevals/custom_evaluators.py b/src/agentevals/custom_evaluators.py
index 95b7f5e5..058a11af 100644
--- a/src/agentevals/custom_evaluators.py
+++ b/src/agentevals/custom_evaluators.py
@@ -12,6 +12,7 @@
import abc
import asyncio
+import json
import logging
import shutil
import sys
@@ -19,9 +20,6 @@
from pathlib import Path
from typing import Any
-from google.adk.evaluation.eval_case import Invocation, get_all_tool_calls
-from google.adk.evaluation.evaluator import EvalStatus, EvaluationResult, Evaluator, PerInvocationResult
-
from agentevals._protocol import (
EvalInput,
EvalResult,
@@ -30,6 +28,9 @@
ToolCallData,
ToolResponseData,
)
+from agentevals.genai.matching import ExpectedConversation, ExpectedTurn, align
+from agentevals.genai.messages import text_of
+from agentevals.genai.model import Conversation, Turn
logger = logging.getLogger(__name__)
@@ -252,210 +253,122 @@ def register_executor(name: str, factory: Callable[..., EvaluatorBackend]) -> No
# ---------------------------------------------------------------------------
-# ADK Invocation ↔ InvocationData conversion
+# Canonical turns -> protocol InvocationData
# ---------------------------------------------------------------------------
-def _content_to_text(content) -> str:
- """Extract plain text from an ADK Content object."""
- if content is None:
+def _json_text(value: Any) -> str:
+ if value is None:
return ""
- if isinstance(content, str):
- return content
- if hasattr(content, "parts") and content.parts:
- texts = []
- for part in content.parts:
- if hasattr(part, "text") and part.text:
- texts.append(part.text)
- return " ".join(texts)
- return ""
-
-
-def _extract_tool_calls_from_invocation(inv: Invocation) -> list[ToolCallData]:
- """Extract tool calls from an Invocation's intermediate_data."""
- calls: list[ToolCallData] = []
- if not inv.intermediate_data:
- return calls
-
+ if isinstance(value, str):
+ return value
try:
- tool_uses = get_all_tool_calls(inv.intermediate_data)
- for tc in tool_uses:
- calls.append(ToolCallData(name=tc.name or "", args=tc.args or {}))
- except Exception:
- pass
-
- return calls
-
-
-def _extract_tool_responses_from_invocation(inv: Invocation) -> list[ToolResponseData]:
- """Extract tool responses from intermediate_data."""
- responses: list[ToolResponseData] = []
- if not inv.intermediate_data:
- return responses
-
- if hasattr(inv.intermediate_data, "tool_responses"):
- for tr in inv.intermediate_data.tool_responses or []:
- name = ""
- output = ""
- status = None
- if hasattr(tr, "name"):
- name = tr.name or ""
- if hasattr(tr, "response"):
- output = str(tr.response) if tr.response else ""
- elif hasattr(tr, "output"):
- output = str(tr.output) if tr.output else ""
- if hasattr(tr, "status") and tr.status:
- status = str(tr.status)
- responses.append(ToolResponseData(name=name, output=output, status=status))
-
- return responses
-
-
-def invocation_to_data(
- inv: Invocation,
- performance_metrics: dict[str, Any] | None = None,
-) -> InvocationData:
- """Convert an ADK Invocation to a simplified InvocationData for the protocol."""
+ return json.dumps(value, sort_keys=True, default=str)
+ except (TypeError, ValueError, RecursionError):
+ return str(value)
+
+
+def _args_dict(value: Any) -> dict[str, Any]:
+ if isinstance(value, dict):
+ return value
+ return {} if value is None else {"value": value}
+
+
+def turn_to_data(turn: Turn, performance_metrics: dict[str, Any] | None = None) -> InvocationData:
+ calls = [ToolCallData(name=t.name, args=_args_dict(t.arguments), id=t.call_id) for t in turn.tool_calls]
+ responses = [
+ ToolResponseData(
+ name=t.name,
+ output=_json_text(t.result),
+ status="error" if t.is_error else None,
+ id=t.call_id,
+ response=t.result,
+ )
+ for t in turn.tool_calls
+ if t.result is not None or t.is_error
+ ]
return InvocationData(
- invocation_id=inv.invocation_id or "",
- user_content=_content_to_text(inv.user_content),
- final_response=_content_to_text(inv.final_response) or None,
- intermediate_steps=IntermediateStepData(
- tool_calls=_extract_tool_calls_from_invocation(inv),
- tool_responses=_extract_tool_responses_from_invocation(inv),
- ),
+ invocation_id=turn.ref.span_id,
+ user_content=text_of(turn.user_input) or "",
+ final_response=text_of(turn.final_output),
+ intermediate_steps=IntermediateStepData(tool_calls=calls, tool_responses=responses),
performance_metrics=performance_metrics,
+ trace_id=turn.ref.trace_id,
+ span_id=turn.ref.span_id,
)
-def invocations_to_data(
- invocations: list[Invocation] | None,
- performance_metrics: dict[str, Any] | None = None,
-) -> list[InvocationData] | None:
- """Convert a list of ADK Invocations, or return None."""
- if invocations is None:
- return None
- return [invocation_to_data(inv, performance_metrics=performance_metrics) for inv in invocations]
-
-
-# ---------------------------------------------------------------------------
-# EvalResult → EvaluationResult conversion
-# ---------------------------------------------------------------------------
-
-
-def _eval_result_to_evaluation_result(
- result: EvalResult,
- threshold: float,
- actual_invocations: list[Invocation],
-) -> EvaluationResult:
- """Convert our protocol EvalResult into an ADK EvaluationResult."""
- if result.status:
- status_map = {
- "PASSED": EvalStatus.PASSED,
- "FAILED": EvalStatus.FAILED,
- "NOT_EVALUATED": EvalStatus.NOT_EVALUATED,
- }
- overall_status = status_map.get(result.status.upper(), EvalStatus.NOT_EVALUATED)
- else:
- overall_status = EvalStatus.PASSED if result.score >= threshold else EvalStatus.FAILED
-
- per_inv_results: list[PerInvocationResult] = []
- for i, inv in enumerate(actual_invocations):
- score = result.per_invocation_scores[i] if i < len(result.per_invocation_scores) else None
- per_inv_results.append(
- PerInvocationResult(
- actual_invocation=inv,
- score=score,
- eval_status=overall_status,
- )
+def expected_turn_to_data(turn: ExpectedTurn) -> InvocationData:
+ calls = [
+ ToolCallData(name=c.get("name") or "", args=_args_dict(c.get("arguments")), id=c.get("id"))
+ for c in turn.tool_calls
+ ]
+ responses = [
+ ToolResponseData(
+ name=r.get("name") or "", output=_json_text(r.get("response")), id=r.get("id"), response=r.get("response")
)
-
- return EvaluationResult(
- overall_score=result.score,
- overall_eval_status=overall_status,
- per_invocation_results=per_inv_results,
+ for r in turn.tool_responses
+ ]
+ return InvocationData(
+ invocation_id=turn.invocation_id or "",
+ user_content=turn.user_text or "",
+ final_response=turn.final_text,
+ intermediate_steps=IntermediateStepData(tool_calls=calls, tool_responses=responses),
)
-# ---------------------------------------------------------------------------
-# CustomEvaluatorRunner — ADK Evaluator adapter (backend-agnostic)
-# ---------------------------------------------------------------------------
-
-
-class CustomEvaluatorRunner(Evaluator):
- """Wraps any :class:`EvaluatorBackend` as an ADK :class:`Evaluator`.
-
- Handles the conversion between ADK ``Invocation`` objects and the
- language-agnostic ``EvalInput``/``EvalResult`` protocol.
- """
-
- def __init__(
- self,
- backend: EvaluatorBackend,
- metric_name: str,
- threshold: float = 0.5,
- config: dict[str, Any] | None = None,
- performance_metrics: dict[str, Any] | None = None,
- ):
- self._backend = backend
- self._metric_name = metric_name
- self._threshold = threshold
- self._config = config or {}
- self._performance_metrics = performance_metrics
-
- async def evaluate_invocations(
- self,
- actual_invocations: list[Invocation],
- expected_invocations: list[Invocation] | None = None,
- conversation_scenario=None,
- ) -> EvaluationResult:
-
- eval_input = EvalInput(
- metric_name=self._metric_name,
- threshold=self._threshold,
- config=self._config,
- invocations=invocations_to_data(actual_invocations, performance_metrics=self._performance_metrics) or [],
- expected_invocations=invocations_to_data(expected_invocations),
- )
-
- result = await self._backend.run(eval_input, self._metric_name)
- return _eval_result_to_evaluation_result(result, self._threshold, actual_invocations)
+def _status_of(result: EvalResult, threshold: float) -> str:
+ if result.status is not None:
+ return result.status.value
+ return "PASSED" if result.score >= threshold else "FAILED"
# ---------------------------------------------------------------------------
-# Public helper — build and run a custom evaluator from a config definition
+# Dispatcher
# ---------------------------------------------------------------------------
async def evaluate_custom_evaluator(
evaluator_def,
- actual_invocations: list[Invocation],
- expected_invocations: list[Invocation] | None,
+ actual: Conversation,
+ expected: ExpectedConversation | None,
performance_metrics: dict[str, Any] | None = None,
+ expected_reason: str | None = None,
):
- """Evaluate a single custom evaluator and return a ``MetricResult``.
+ """Evaluate one evaluator over a conversation and return a ``MetricResult``.
- This is the entry point called by the runner. It constructs the
- appropriate backend from the config definition, wraps it in a
- ``CustomEvaluatorRunner``, and runs the evaluation.
+ ``expected`` is the golden conversation selected for ``actual``, or ``None`` with
+ ``expected_reason`` explaining why there is none.
"""
- import inspect as _inspect
-
- from .builtin_metrics import evaluate_builtin_metric
from .config import BuiltinMetricDef, CodeEvaluatorDef, RemoteEvaluatorDef
from .runner import MetricResult
if isinstance(evaluator_def, BuiltinMetricDef):
- return await evaluate_builtin_metric(
+ from .adk_bridge import expected_invocations, to_adk_invocations
+ from .builtin_metrics import evaluate_builtin_metric
+
+ actual_invocations = to_adk_invocations(actual.turns)
+ golden = expected_invocations(expected)
+ alignment: dict[str, int] = {}
+ if golden is not None and len(golden) != len(actual_invocations):
+ aligned = align(actual.turns, expected.turns)
+ n = len(aligned.pairs)
+ actual_invocations, golden = actual_invocations[:n], golden[:n]
+ alignment = {"missing_turns": aligned.missing_turns, "unexpected_turns": aligned.unexpected_turns}
+ result = await evaluate_builtin_metric(
metric_name=evaluator_def.name,
actual_invocations=actual_invocations,
- expected_invocations=expected_invocations,
+ expected_invocations=golden,
judge_model=evaluator_def.judge_model,
threshold=evaluator_def.threshold,
match_type=evaluator_def.trajectory_match_type,
credential_ref=evaluator_def.credential_ref,
judge_base_url=evaluator_def.judge_base_url,
+ expected_reason=expected_reason,
)
+ if alignment:
+ result.details = {**(result.details or {}), **alignment}
+ return result
is_remote = isinstance(evaluator_def, RemoteEvaluatorDef)
if is_remote:
@@ -463,66 +376,53 @@ async def evaluate_custom_evaluator(
evaluator_def = await get_default_resolver().resolve(evaluator_def)
- if isinstance(evaluator_def, CodeEvaluatorDef):
- evaluator_path = Path(evaluator_def.path)
-
- runtime: Runtime | None = None
- if evaluator_path.suffix == ".py":
- from .evaluator.venv import ensure_venv_async
-
- try:
- venv_python = await ensure_venv_async(evaluator_path, strict_requirements=is_remote)
- except Exception as exc:
- logger.error("Failed to set up venv for '%s': %s", evaluator_def.name, exc)
- return MetricResult(
- metric_name=evaluator_def.name,
- error=f"Dependency installation failed: {exc}",
- )
- if venv_python:
- runtime = PythonRuntime(python_path=venv_python)
-
- if runtime is not None:
- backend = SubprocessBackend(evaluator_path, evaluator_def.timeout, runtime=runtime)
- else:
- backend = create_executor(evaluator_def.executor, evaluator_path, evaluator_def.timeout)
- else:
+ if not isinstance(evaluator_def, CodeEvaluatorDef):
raise ValueError(f"Unsupported custom evaluator type: {type(evaluator_def).__name__}")
- evaluator_instance = CustomEvaluatorRunner(
- backend=backend,
+ evaluator_path = Path(evaluator_def.path)
+ runtime: Runtime | None = None
+ if evaluator_path.suffix == ".py":
+ from .evaluator.venv import ensure_venv_async
+
+ try:
+ venv_python = await ensure_venv_async(evaluator_path, strict_requirements=is_remote)
+ except Exception as exc:
+ logger.error("Failed to set up venv for '%s': %s", evaluator_def.name, exc)
+ return MetricResult(
+ metric_name=evaluator_def.name,
+ error=f"Dependency installation failed: {exc}",
+ error_type=type(exc).__name__,
+ )
+ if venv_python:
+ runtime = PythonRuntime(python_path=venv_python)
+
+ if runtime is not None:
+ backend: EvaluatorBackend = SubprocessBackend(evaluator_path, evaluator_def.timeout, runtime=runtime)
+ else:
+ backend = create_executor(evaluator_def.executor, evaluator_path, evaluator_def.timeout)
+
+ eval_input = EvalInput(
metric_name=evaluator_def.name,
threshold=evaluator_def.threshold,
config=evaluator_def.config,
- performance_metrics=performance_metrics,
+ invocations=[turn_to_data(t, performance_metrics) for t in actual.turns],
+ expected_invocations=[expected_turn_to_data(t) for t in expected.turns] if expected else None,
)
-
try:
- if _inspect.iscoroutinefunction(evaluator_instance.evaluate_invocations):
- eval_result: EvaluationResult = await evaluator_instance.evaluate_invocations(
- actual_invocations=actual_invocations,
- expected_invocations=expected_invocations,
- )
- else:
- import asyncio
-
- eval_result: EvaluationResult = await asyncio.to_thread(
- evaluator_instance.evaluate_invocations,
- actual_invocations=actual_invocations,
- expected_invocations=expected_invocations,
- )
-
- per_inv_scores = [r.score for r in eval_result.per_invocation_results]
-
- return MetricResult(
- metric_name=evaluator_def.name,
- score=eval_result.overall_score,
- eval_status=eval_result.overall_eval_status.name,
- per_invocation_scores=per_inv_scores,
- )
-
+ result = await backend.run(eval_input, evaluator_def.name)
except Exception as exc:
logger.exception("Failed to evaluate custom evaluator '%s'", evaluator_def.name)
- return MetricResult(
- metric_name=evaluator_def.name,
- error=str(exc),
- )
+ return MetricResult(metric_name=evaluator_def.name, error=str(exc), error_type=type(exc).__name__)
+
+ threshold = evaluator_def.threshold
+ return MetricResult(
+ metric_name=evaluator_def.name,
+ score=result.score,
+ eval_status=_status_of(result, threshold),
+ per_invocation_scores=list(result.per_invocation_scores),
+ per_invocation_statuses=[
+ "NOT_EVALUATED" if s is None else "PASSED" if s >= threshold else "FAILED"
+ for s in result.per_invocation_scores
+ ],
+ details=result.details,
+ )
diff --git a/src/agentevals/evaluation_events.py b/src/agentevals/evaluation_events.py
new file mode 100644
index 00000000..e2d90dbb
--- /dev/null
+++ b/src/agentevals/evaluation_events.py
@@ -0,0 +1,352 @@
+"""Evaluation results as OpenTelemetry ``gen_ai.evaluation.result`` log events.
+
+Each record is parented to the GenAI span it judges, so a backend shows the score next to the
+operation, and carries no content: no user input, model output or tool arguments. Metrics with
+per turn scores give one record per turn; conversation level metrics give one record on the last
+turn. Labels are ``pass``, ``fail`` and ``not_evaluated``; an evaluator error gives ``error.type``
+and no score or label.
+
+Off unless turned on, because it sends results to an external backend. Precedence:
+
+1. ``OTEL_SDK_DISABLED=true`` or ``OTEL_LOGS_EXPORTER=none`` turns it off (the standard switches win);
+2. otherwise ``--emit-otel`` (``run``, ``serve``) or ``AGENTEVALS_EVALUATION_EVENTS=true`` turns it on;
+3. otherwise it stays off.
+
+``AGENTEVALS_EVALUATION_EVENTS`` and ``AGENTEVALS_EVALUATION_EVENTS_EXPLANATION`` accept
+true/false/1/0/yes/no/on/off; anything else is an error. The exporter is configured only by the
+standard ``OTEL_EXPORTER_OTLP_*`` variables (logs specific ones first).
+A dedicated ``LoggerProvider`` is used, never the global one, and this is the only module that
+touches ``opentelemetry._logs`` for emitting.
+"""
+
+from __future__ import annotations
+
+import logging
+import os
+import threading
+import time
+import uuid
+from collections.abc import Iterable, Mapping, Sequence
+from typing import TYPE_CHECKING, Any
+
+from .otel.identity import EMITTER_SCOPE
+from .otel.model import Span, attr_str
+
+if TYPE_CHECKING:
+ from .config import EvaluatorDef
+ from .genai.model import Conversation, Turn
+ from .runner import MetricResult
+
+logger = logging.getLogger(__name__)
+
+EVENT_NAME = "gen_ai.evaluation.result"
+SCOPE_NAME = EMITTER_SCOPE
+ENABLE_ENV = "AGENTEVALS_EVALUATION_EVENTS"
+EXPLANATION_ENV = "AGENTEVALS_EVALUATION_EVENTS_EXPLANATION"
+MAX_EXPLANATION_CHARS = 2048
+FAILURE_LOG_INTERVAL_SECONDS = 60.0
+
+LABEL_PASS = "pass"
+LABEL_FAIL = "fail"
+LABEL_NOT_EVALUATED = "not_evaluated"
+_LABELS = {"PASSED": LABEL_PASS, "FAILED": LABEL_FAIL, "NOT_EVALUATED": LABEL_NOT_EVALUATED}
+
+_TRUE = {"1", "true", "yes", "on"}
+_FALSE = {"0", "false", "no", "off"}
+
+_PROCESS_INSTANCE_ID = str(uuid.uuid4())
+
+
+def _env_true(name: str) -> bool:
+ """Lenient read for standard OTel switches, which other tools also set."""
+ return os.environ.get(name, "").strip().lower() in _TRUE
+
+
+def _env_flag(name: str) -> bool | None:
+ """Strict read for agentevals switches: ``None`` when unset, ``ValueError`` when unrecognized."""
+ raw = os.environ.get(name)
+ if raw is None or not raw.strip():
+ return None
+ value = raw.strip().lower()
+ if value in _TRUE:
+ return True
+ if value in _FALSE:
+ return False
+ raise ValueError(f"{name} must be one of true/false/1/0/yes/no/on/off (got: {raw!r})")
+
+
+def disabled_by_otel() -> bool:
+ """The standard switches that silence telemetry for the whole process."""
+ return _env_true("OTEL_SDK_DISABLED") or os.environ.get("OTEL_LOGS_EXPORTER", "").strip().lower() == "none"
+
+
+def validate_env() -> None:
+ """Fail fast on an unrecognized switch value (called when the CLI and the server start)."""
+ _env_flag(ENABLE_ENV)
+ _env_flag(EXPLANATION_ENV)
+
+
+def enabled() -> bool:
+ if disabled_by_otel():
+ return False
+ return _requested or bool(_env_flag(ENABLE_ENV))
+
+
+def _package_version() -> str:
+ from . import __version__
+
+ return __version__
+
+
+def build_resource() -> Any:
+ """Service identity as one unit; ``OTEL_RESOURCE_ATTRIBUTES`` and ``OTEL_SERVICE_NAME`` win."""
+ from opentelemetry.sdk.resources import OTELResourceDetector, Resource
+
+ ours = Resource.create(
+ {
+ "service.name": os.environ.get("OTEL_SERVICE_NAME") or "agentevals",
+ "service.version": _package_version(),
+ "service.instance.id": _PROCESS_INSTANCE_ID,
+ }
+ )
+ return ours.merge(OTELResourceDetector().detect())
+
+
+def instance_id() -> str:
+ """The ``service.instance.id`` this process emits with (used by the live feedback guard)."""
+ value = build_resource().attributes.get("service.instance.id")
+ return str(value) if value else _PROCESS_INSTANCE_ID
+
+
+def _protocol() -> str:
+ raw = (
+ os.environ.get("OTEL_EXPORTER_OTLP_LOGS_PROTOCOL") or os.environ.get("OTEL_EXPORTER_OTLP_PROTOCOL") or ""
+ ).strip()
+ if raw in ("", "http/protobuf"):
+ return "http/protobuf"
+ if raw == "grpc":
+ return "grpc"
+ logger.warning("OTLP protocol %r is not supported for evaluation events; using http/protobuf", raw)
+ return "http/protobuf"
+
+
+def _exporter_from_env() -> Any:
+ if _protocol() == "grpc":
+ from opentelemetry.exporter.otlp.proto.grpc._log_exporter import OTLPLogExporter
+ else:
+ from opentelemetry.exporter.otlp.proto.http._log_exporter import OTLPLogExporter
+ return OTLPLogExporter()
+
+
+def _evaluator_type(evaluator: EvaluatorDef | None) -> str | None:
+ if evaluator is None or evaluator.type != "builtin":
+ return None
+ from .builtin_metrics import METRICS_NEEDING_GCP, METRICS_NEEDING_LLM
+
+ return "llm_judge" if evaluator.name in METRICS_NEEDING_LLM | METRICS_NEEDING_GCP else "deterministic"
+
+
+def _explanation(metric: MetricResult) -> str | None:
+ details = metric.details or {}
+ for key in ("explanation", "rationale", "reason"):
+ value = details.get(key)
+ if isinstance(value, str) and value:
+ return value[:MAX_EXPLANATION_CHARS]
+ return None
+
+
+def _evaluated_span(turn: Turn) -> tuple[str, str]:
+ """The GenAI span a turn's results attach to: its agent or workflow anchor, else its final call.
+
+ A root anchored turn's anchor can be a non GenAI span (an HTTP server span, say); the event
+ should hang off the GenAI operation being evaluated.
+ """
+ calls = turn.llm_calls
+ if turn.anchor_kind != "root" or not calls:
+ return turn.ref.trace_id, turn.ref.span_id
+ call_refs = {(c.ref.trace_id, c.ref.span_id) for c in calls}
+ call_refs |= {(c.wrapper_ref.trace_id, c.wrapper_ref.span_id) for c in calls if c.wrapper_ref}
+ if (turn.ref.trace_id, turn.ref.span_id) in call_refs:
+ return turn.ref.trace_id, turn.ref.span_id
+ final = max(calls, key=lambda c: (c.end_ns, c.start_ns))
+ return final.ref.trace_id, final.ref.span_id
+
+
+class EvaluationEmitter:
+ def __init__(self, exporter: Any | None = None, *, explanation: bool | None = None):
+ from opentelemetry.sdk._logs import LoggerProvider
+ from opentelemetry.sdk._logs.export import BatchLogRecordProcessor
+
+ self.resource = build_resource()
+ self.explanation = bool(_env_flag(EXPLANATION_ENV)) if explanation is None else explanation
+ self._provider = LoggerProvider(resource=self.resource)
+ self._provider.add_log_record_processor(BatchLogRecordProcessor(exporter or _exporter_from_env()))
+ self._logger = self._provider.get_logger(SCOPE_NAME, _package_version())
+ self._last_failure_log: float | None = None
+ self._lock = threading.Lock()
+
+ def _record(self, span: tuple[str, str], attributes: Mapping[str, Any]) -> None:
+ """Emit one record in the evaluated span's context.
+
+ The record is always marked sampled: the span reached us, and SDK pipelines export only
+ sampled spans. The OTLP span ``flags`` cannot tell otherwise, since common encoders write
+ only the parent is remote bits there and leave the W3C trace flags at zero.
+ """
+ from opentelemetry._logs import LogRecord, SeverityNumber
+ from opentelemetry.trace import NonRecordingSpan, SpanContext, TraceFlags, set_span_in_context
+
+ trace_flags = TraceFlags(TraceFlags.SAMPLED)
+ context = set_span_in_context(
+ NonRecordingSpan(
+ SpanContext(
+ trace_id=int(span[0], 16), span_id=int(span[1], 16), is_remote=True, trace_flags=trace_flags
+ )
+ )
+ )
+ now = time.time_ns()
+ self._logger.emit(
+ LogRecord(
+ timestamp=now,
+ observed_timestamp=now,
+ context=context,
+ severity_text="INFO",
+ severity_number=SeverityNumber.INFO,
+ body=None,
+ attributes=dict(attributes),
+ event_name=EVENT_NAME,
+ )
+ )
+
+ def emit(
+ self,
+ *,
+ conversation: Conversation,
+ metrics: Sequence[MetricResult],
+ evaluators: Iterable[EvaluatorDef],
+ spans: Mapping[tuple[str, str], Span],
+ eval_case_id: str | None = None,
+ eval_set_id: str | None = None,
+ run_id: str | None = None,
+ ) -> int:
+ """Emit the records for one evaluated group. Returns how many were emitted; never raises."""
+ try:
+ return self._emit(conversation, metrics, evaluators, spans, eval_case_id, eval_set_id, run_id)
+ except Exception:
+ self._log_failure("Could not emit evaluation result events")
+ return 0
+
+ def _emit(self, conversation, metrics, evaluators, spans, eval_case_id, eval_set_id, run_id) -> int:
+ turns = conversation.turns
+ if not turns:
+ return 0
+ by_name = {e.name: e for e in evaluators}
+ common: dict[str, Any] = {}
+ for key, value in (
+ ("agentevals.eval.run.id", run_id),
+ ("agentevals.eval.case.id", eval_case_id),
+ ("agentevals.eval_set.id", eval_set_id),
+ ):
+ if value:
+ common[key] = value
+
+ emitted = 0
+ for metric in metrics:
+ if metric.metric_name not in by_name:
+ continue
+ base = {"gen_ai.evaluation.name": metric.metric_name, **common}
+ evaluator_type = _evaluator_type(by_name.get(metric.metric_name))
+ if evaluator_type:
+ base["agentevals.evaluator.type"] = evaluator_type
+ explanation = _explanation(metric) if self.explanation else None
+
+ per_turn = metric.per_invocation_scores
+ if metric.error:
+ items = [(turns[-1], None, None)]
+ elif per_turn and len(per_turn) <= len(turns):
+ statuses = metric.per_invocation_statuses
+ items = [
+ (turns[i], score, statuses[i] if i < len(statuses) else None) for i, score in enumerate(per_turn)
+ ]
+ else:
+ items = [(turns[-1], metric.score, metric.eval_status)]
+
+ for turn, score, status in items:
+ ref = _evaluated_span(turn)
+ span = spans.get(ref)
+ attrs = dict(base)
+ if metric.error:
+ attrs["error.type"] = metric.error_type or "_OTHER"
+ else:
+ if score is not None:
+ attrs["gen_ai.evaluation.score.value"] = float(score)
+ label = LABEL_NOT_EVALUATED if score is None else _LABELS.get(status or "")
+ if label:
+ attrs["gen_ai.evaluation.score.label"] = label
+ if explanation:
+ attrs["gen_ai.evaluation.explanation"] = explanation
+ if span is not None:
+ for key in ("gen_ai.agent.name", "gen_ai.conversation.id"):
+ value = attr_str(span.attributes, key)
+ if value:
+ attrs[key] = value
+ response_id = next((c.response_id for c in reversed(turn.llm_calls) if c.response_id), None)
+ if response_id:
+ attrs["gen_ai.response.id"] = response_id
+ self._record(ref, attrs)
+ emitted += 1
+ return emitted
+
+ def _log_failure(self, message: str) -> None:
+ with self._lock:
+ now = time.monotonic()
+ if self._last_failure_log is not None and now - self._last_failure_log < FAILURE_LOG_INTERVAL_SECONDS:
+ return
+ self._last_failure_log = now
+ logger.warning(message, exc_info=True)
+
+ def flush(self, timeout_millis: int = 10_000) -> None:
+ try:
+ self._provider.force_flush(timeout_millis)
+ except Exception:
+ self._log_failure("Could not flush evaluation result events")
+
+ def shutdown(self) -> None:
+ try:
+ self._provider.shutdown()
+ except Exception:
+ self._log_failure("Could not shut down the evaluation result exporter")
+
+
+_emitter: EvaluationEmitter | None = None
+_requested = False
+_emitter_lock = threading.Lock()
+
+
+def enable() -> None:
+ """Turn emitting on for this process (the ``--emit-otel`` flag)."""
+ global _requested
+ _requested = True
+
+
+def get_emitter() -> EvaluationEmitter | None:
+ """The process emitter when emitting is on, created on first use; ``None`` otherwise."""
+ global _emitter
+ if not enabled():
+ return None
+ with _emitter_lock:
+ if _emitter is None:
+ _emitter = EvaluationEmitter()
+ return _emitter
+
+
+def flush() -> None:
+ if _emitter is not None:
+ _emitter.flush()
+
+
+def shutdown() -> None:
+ global _emitter
+ with _emitter_lock:
+ emitter, _emitter = _emitter, None
+ if emitter is not None:
+ emitter.shutdown()
diff --git a/src/agentevals/evaluator/templates.py b/src/agentevals/evaluator/templates.py
index 48cb4f86..d96fcd67 100644
--- a/src/agentevals/evaluator/templates.py
+++ b/src/agentevals/evaluator/templates.py
@@ -107,8 +107,8 @@ def ${name}(input: EvalInput) -> EvalResult:
import * as fs from "fs";
interface IntermediateSteps {
- tool_calls: { name: string; args: Record }[];
- tool_responses: { name: string; output: string }[];
+ tool_calls: { name: string; args: Record; id?: string | null }[];
+ tool_responses: { name: string; output: string; status?: string | null; id?: string | null; response?: unknown }[];
}
interface Invocation {
@@ -116,6 +116,9 @@ def ${name}(input: EvalInput) -> EvalResult:
user_content: string;
final_response: string | null;
intermediate_steps: IntermediateSteps;
+ performance_metrics?: Record | null;
+ trace_id?: string | null;
+ span_id?: string | null;
}
interface EvalInput {
diff --git a/src/agentevals/extraction.py b/src/agentevals/extraction.py
deleted file mode 100644
index efcc9d68..00000000
--- a/src/agentevals/extraction.py
+++ /dev/null
@@ -1,689 +0,0 @@
-"""Shared extraction functions and format-aware extractor strategy.
-
-Provides:
-- Pure functions that extract user text, agent responses, token usage, and tool
- calls from flat attribute dictionaries (usable by both Span-based converters
- and the raw-OTLP-dict incremental processor).
-- Span classification predicates (is_llm_span, is_tool_span, etc.).
-- A lightweight TraceFormatExtractor protocol with ADK and GenAI implementations,
- plus a get_extractor() dispatcher for trace-level format selection.
-"""
-
-from __future__ import annotations
-
-import json
-import logging
-import re
-from typing import Any, Protocol, TypedDict, TypeVar
-
-from .loader.base import Span, Trace
-from .otlp_anyvalue import decode_attributes
-from .trace_attrs import (
- ADK_LLM_REQUEST,
- ADK_LLM_RESPONSE,
- ADK_SCOPE_VALUE,
- ADK_TOOL_CALL_ARGS,
- ADK_TOOL_RESPONSE,
- GENAI_ATTRIBUTE_ALIASES,
- OTEL_ERROR_TYPE,
- OTEL_GENAI_INPUT_MESSAGES,
- OTEL_GENAI_OP,
- OTEL_GENAI_OUTPUT_MESSAGES,
- OTEL_GENAI_PROVIDER_NAME,
- OTEL_GENAI_REQUEST_MAX_TOKENS,
- OTEL_GENAI_REQUEST_MODEL,
- OTEL_GENAI_REQUEST_TEMPERATURE,
- OTEL_GENAI_RESPONSE_FINISH_REASONS,
- OTEL_GENAI_RESPONSE_ID,
- OTEL_GENAI_RESPONSE_MODEL,
- OTEL_GENAI_SYSTEM,
- OTEL_GENAI_TOOL_CALL_ARGUMENTS,
- OTEL_GENAI_TOOL_CALL_ID,
- OTEL_GENAI_TOOL_CALL_RESULT,
- OTEL_GENAI_TOOL_DESCRIPTION,
- OTEL_GENAI_TOOL_NAME,
- OTEL_GENAI_TOOL_TYPE,
- OTEL_GENAI_USAGE_CACHE_CREATION_TOKENS,
- OTEL_GENAI_USAGE_CACHE_READ_TOKENS,
- OTEL_GENAI_USAGE_INPUT_TOKENS,
- OTEL_GENAI_USAGE_OUTPUT_TOKENS,
- OTEL_SCHEMA_URL,
- OTEL_SCOPE,
-)
-from .utils.genai_messages import (
- ASSISTANT_ROLES,
- USER_ROLES,
- extract_text_from_message,
- extract_tool_call_args_from_messages,
- parse_json_attr,
-)
-
-logger = logging.getLogger(__name__)
-
-FORMAT_DETECTION_SPAN_LIMIT = 10
-
-# ---------------------------------------------------------------------------
-# Alias-aware attribute resolution
-# ---------------------------------------------------------------------------
-
-# Per the OTel schema URL spec (https://opentelemetry.io/docs/specs/otel/schemas/#schema-url),
-# a schema URL has the form `http[s]://server[:port]/path/`.
-_SCHEMA_VERSION_RE = re.compile(r"^\d+\.\d+\.\d+(?:-[0-9A-Za-z.-]+)?(?:\+[0-9A-Za-z.-]+)?$")
-
-
-def resolve_attr(attrs: dict[str, Any], canonical_key: str) -> Any | None:
- """Look up *canonical_key* in *attrs*, falling back to older aliased names.
-
- Resolution order:
- 1. The canonical (current/newest) key, if present with a truthy value.
- 2. Each alias in ``GENAI_ATTRIBUTE_ALIASES[canonical_key]``, in order,
- first truthy value wins.
- 3. ``None`` if neither the canonical key nor any alias is present.
-
- The canonical value always takes precedence over aliases, even if both
- are present on the same span. This resolves only against the flat attrs
- dict at read time - it never mutates or rewrites stored/transmitted
- attributes.
- """
- value = attrs.get(canonical_key)
- if value:
- return value
-
- for alias in GENAI_ATTRIBUTE_ALIASES.get(canonical_key, []):
- alias_value = attrs.get(alias)
- if alias_value:
- return alias_value
-
- return None
-
-
-def resolve_schema_version(schema_url: str | None) -> str | None:
- """Extract the version segment from a schema URL.
-
- Per the OTel schema URL spec, the version is the last path segment
- (e.g. "1.37.0" in "https://opentelemetry.io/schemas/1.37.0").
-
- It's scoped to that URL's schema family and only equals the OTel semconv
- version for the official OTel family. Degrades gracefully to None for
- missing, empty, or malformed input - never raises.
- """
- if not schema_url or not isinstance(schema_url, str):
- return None
-
- last_segment = schema_url.rstrip("/").rsplit("/", 1)[-1]
- if _SCHEMA_VERSION_RE.match(last_segment):
- return last_segment
-
- return None
-
-
-# ---------------------------------------------------------------------------
-# Pure extraction functions (operate on flat attribute dicts)
-# ---------------------------------------------------------------------------
-
-
-def extract_user_text_from_attrs(attrs: dict[str, Any]) -> str | None:
- """Extract user input text from span attributes, ADK-first."""
- llm_request_raw = attrs.get(ADK_LLM_REQUEST)
- if llm_request_raw:
- llm_request = parse_json(llm_request_raw)
- if isinstance(llm_request, dict):
- contents = llm_request.get("contents", llm_request.get("Contents", []))
- for content_dict in reversed(contents):
- if content_dict.get("role") != "user":
- continue
- parts = content_dict.get("parts", [])
- text_parts = [p for p in parts if "text" in p]
- if text_parts:
- return " ".join(p["text"] for p in text_parts)
- for content_dict in contents:
- if content_dict.get("role") == "user":
- parts = content_dict.get("parts", [])
- if parts:
- return " ".join(p.get("text", "") for p in parts if "text" in p)
-
- messages_raw = attrs.get(OTEL_GENAI_INPUT_MESSAGES)
- if messages_raw:
- messages = parse_json_attr(messages_raw, "gen_ai.input.messages")
- if isinstance(messages, list):
- for msg in reversed(messages):
- if isinstance(msg, dict) and msg.get("role") in USER_ROLES:
- text = extract_text_from_message(msg)
- if text:
- return text
-
- return None
-
-
-def extract_agent_response_from_attrs(attrs: dict[str, Any]) -> str | None:
- """Extract agent response text from span attributes, ADK-first."""
- llm_response_raw = attrs.get(ADK_LLM_RESPONSE)
- if llm_response_raw:
- llm_response = parse_json(llm_response_raw)
- if isinstance(llm_response, dict):
- content_dict = llm_response.get("content", llm_response.get("Content", {}))
- if content_dict:
- parts_dicts = content_dict.get("parts", [])
- text_parts = [p for p in parts_dicts if "text" in p]
- if text_parts:
- return " ".join(p["text"] for p in text_parts)
-
- messages_raw = attrs.get(OTEL_GENAI_OUTPUT_MESSAGES)
- if messages_raw:
- messages = parse_json_attr(messages_raw, "gen_ai.output.messages")
- if isinstance(messages, list):
- for msg in reversed(messages):
- if isinstance(msg, dict) and msg.get("role") in ASSISTANT_ROLES:
- text = extract_text_from_message(msg)
- if text:
- return text
-
- return None
-
-
-def extract_token_usage_from_attrs(
- attrs: dict[str, Any],
-) -> tuple[int, int, str]:
- """Extract (input_tokens, output_tokens, model) from attributes, ADK-first."""
- model = attrs.get(OTEL_GENAI_REQUEST_MODEL, "unknown")
-
- llm_response_raw = attrs.get(ADK_LLM_RESPONSE)
- if llm_response_raw:
- llm_response = parse_json(llm_response_raw)
- if isinstance(llm_response, dict):
- usage = llm_response.get("usage_metadata", {})
- input_toks = usage.get("prompt_token_count", 0)
- output_toks = usage.get("candidates_token_count", 0)
- if input_toks or output_toks:
- llm_request_raw = attrs.get(ADK_LLM_REQUEST)
- if llm_request_raw:
- llm_request = parse_json(llm_request_raw)
- if isinstance(llm_request, dict) and "model" in llm_request:
- model = llm_request["model"]
- return int(input_toks), int(output_toks), model
-
- input_toks = attrs.get(OTEL_GENAI_USAGE_INPUT_TOKENS, 0)
- output_toks = attrs.get(OTEL_GENAI_USAGE_OUTPUT_TOKENS, 0)
- if isinstance(input_toks, (int, float)) and isinstance(output_toks, (int, float)):
- if input_toks or output_toks:
- return int(input_toks), int(output_toks), model
-
- return 0, 0, model
-
-
-_T = TypeVar("_T", int, float)
-
-
-def _safe_cast(value: Any, target_type: type[_T], default: _T | None = None) -> _T | None:
- """Try to cast *value* to *target_type*, returning *default* on failure."""
- if value is None:
- return default
- try:
- return target_type(value)
- except (TypeError, ValueError):
- return default
-
-
-def _parse_finish_reasons(raw: Any) -> list[str]:
- """Parse finish reasons from a list, JSON string, or plain string."""
- if isinstance(raw, list):
- return [str(r) for r in raw]
- if isinstance(raw, str):
- parsed = parse_json(raw)
- if isinstance(parsed, list):
- return [str(r) for r in parsed]
- if raw:
- return [raw]
- return []
-
-
-class ExtendedModelInfo(TypedDict):
- request_model: str | None
- response_model: str | None
- provider: str | None
- finish_reasons: list[str]
- response_id: str | None
- temperature: float | None
- max_tokens: int | None
- cache_creation_tokens: int
- cache_read_tokens: int
- error_type: str | None
- schema_version: str | None
-
-
-def extract_extended_model_info_from_attrs(attrs: dict[str, Any]) -> ExtendedModelInfo:
- """Extract extended model and provider metadata from span attributes.
-
- Uses the alias-resolving lookup for attributes with known historical
- renames (e.g. provider falls back to gen_ai.system when
- gen_ai.provider.name - the canonical, current name - is absent, for
- backward compat with pre-v1.37.0 instrumentors).
-
- ``schema_version`` is resolved from the scope's ``schema_url`` (captured
- at ingest as the ``otel.schema_url`` attribute) and is ``None`` when
- absent or malformed. This is purely informational metadata about which
- schema version emitted the span - it is never used to detect whether a
- span is GenAI (that remains the sole responsibility of the existing
- gen_ai.* presence checks).
- """
- return {
- "request_model": attrs.get(OTEL_GENAI_REQUEST_MODEL),
- "response_model": attrs.get(OTEL_GENAI_RESPONSE_MODEL),
- "provider": resolve_attr(attrs, OTEL_GENAI_PROVIDER_NAME),
- "finish_reasons": _parse_finish_reasons(attrs.get(OTEL_GENAI_RESPONSE_FINISH_REASONS)),
- "response_id": attrs.get(OTEL_GENAI_RESPONSE_ID),
- "temperature": _safe_cast(attrs.get(OTEL_GENAI_REQUEST_TEMPERATURE), float),
- "max_tokens": _safe_cast(attrs.get(OTEL_GENAI_REQUEST_MAX_TOKENS), int),
- "cache_creation_tokens": _safe_cast(attrs.get(OTEL_GENAI_USAGE_CACHE_CREATION_TOKENS), int, 0),
- "cache_read_tokens": _safe_cast(attrs.get(OTEL_GENAI_USAGE_CACHE_READ_TOKENS), int, 0),
- "error_type": attrs.get(OTEL_ERROR_TYPE),
- "schema_version": resolve_schema_version(attrs.get(OTEL_SCHEMA_URL)),
- }
-
-
-def extract_tool_call_from_attrs(
- attrs: dict[str, Any], operation_name: str = "", span_id: str = ""
-) -> dict[str, Any] | None:
- """Extract tool call info from span attributes. Returns {id, name, args} or None."""
- tool_name = attrs.get(OTEL_GENAI_TOOL_NAME)
- if not tool_name:
- if operation_name.startswith("execute_tool "):
- tool_name = operation_name[len("execute_tool ") :]
- else:
- return None
-
- tool_call_id = attrs.get(OTEL_GENAI_TOOL_CALL_ID) or span_id or "unknown"
-
- args_raw = attrs.get(OTEL_GENAI_TOOL_CALL_ARGUMENTS)
- if not args_raw:
- args_raw = attrs.get(ADK_TOOL_CALL_ARGS)
-
- args: dict = {}
- if args_raw:
- parsed = parse_json_attr(args_raw, "tool.call.arguments")
- if isinstance(parsed, dict):
- args = parsed
-
- if not args:
- messages_raw = attrs.get(OTEL_GENAI_INPUT_MESSAGES)
- if messages_raw:
- fallback_args, fallback_id = extract_tool_call_args_from_messages(messages_raw, tool_name)
- if fallback_args:
- args = fallback_args
- if fallback_id:
- tool_call_id = fallback_id
-
- result: dict[str, Any] = {"id": tool_call_id, "name": tool_name, "args": args}
-
- tool_type = attrs.get(OTEL_GENAI_TOOL_TYPE)
- if tool_type:
- result["type"] = tool_type
-
- tool_description = attrs.get(OTEL_GENAI_TOOL_DESCRIPTION)
- if tool_description:
- result["description"] = tool_description
-
- return result
-
-
-def parse_tool_response_content(content: Any) -> dict:
- """Parse raw tool response content into a response dict.
-
- Handles str (tries JSON parse), dict (pass-through), and other types (stringified).
- On JSON parse failure, wraps raw content as {"result": content}.
- """
- if isinstance(content, str):
- try:
- parsed = json.loads(content)
- return parsed if isinstance(parsed, dict) else {"result": str(parsed)}
- except (json.JSONDecodeError, TypeError):
- return {"result": content}
- elif isinstance(content, dict):
- return content
- return {"result": str(content)}
-
-
-def extract_tool_result_from_attrs(attrs: dict[str, Any]) -> dict[str, Any] | None:
- """Extract tool result from span attributes, ADK-first.
-
- Checks (in order):
- 1. ADK tool response attribute
- 2. GenAI semconv tool call result attribute
- 3. gen_ai.output.messages for tool_call_response parts (Strands format)
-
- Returns {"response": , "isError": bool} or None if no result present.
- """
- raw = attrs.get(ADK_TOOL_RESPONSE)
- if not raw:
- raw = attrs.get(OTEL_GENAI_TOOL_CALL_RESULT)
-
- if raw:
- parsed = parse_tool_response_content(raw)
- if isinstance(parsed, dict):
- is_error = bool(parsed.get("isError", False))
- return {"response": parsed, "isError": is_error}
-
- output_msgs_raw = attrs.get(OTEL_GENAI_OUTPUT_MESSAGES)
- if output_msgs_raw:
- messages = parse_json_attr(output_msgs_raw, "gen_ai.output.messages")
- if isinstance(messages, list):
- for msg in messages:
- if not isinstance(msg, dict):
- continue
- for part in msg.get("parts", []):
- if not isinstance(part, dict):
- continue
- if part.get("type") == "tool_call_response" and "response" in part:
- resp = part["response"]
- if isinstance(resp, list):
- texts = [t.get("text", "") for t in resp if isinstance(t, dict) and "text" in t]
- parsed = parse_tool_response_content(" ".join(texts))
- elif isinstance(resp, dict):
- parsed = resp
- else:
- continue
- return {"response": parsed, "isError": bool(parsed.get("isError", False))}
-
- return None
-
-
-# ---------------------------------------------------------------------------
-# Span-level convenience wrappers
-# ---------------------------------------------------------------------------
-
-
-def extract_tool_call_from_span(span: Span) -> dict[str, Any] | None:
- """Extract tool call info from a Span object.
-
- Delegates to extract_tool_call_from_attrs using the span's tags, operation
- name, and span ID. Returns {"id", "name", "args"} or None.
- """
- return extract_tool_call_from_attrs(span.tags, span.operation_name, span.span_id)
-
-
-def extract_tool_result_from_span(span: Span) -> dict[str, Any] | None:
- """Extract tool result from a Span object.
-
- Delegates to extract_tool_result_from_attrs using the span's tags.
- Returns {"response": dict, "isError": bool} or None.
- """
- return extract_tool_result_from_attrs(span.tags)
-
-
-# ---------------------------------------------------------------------------
-# Span classification helpers
-# ---------------------------------------------------------------------------
-
-
-_ADK_ATTR_MARKERS = (
- ADK_LLM_REQUEST,
- ADK_LLM_RESPONSE,
- ADK_TOOL_CALL_ARGS,
- ADK_TOOL_RESPONSE,
- "gcp.vertex.agent.invocation_id",
- "gcp.vertex.agent.session_id",
- "gcp.vertex.agent.event_id",
-)
-
-
-def has_adk_descendant(span: Span) -> bool:
- """Return True if any descendant of ``span`` is ADK-instrumented.
-
- Used to recover ADK invocation parents when round-tripped exports
- (Tempo, etc.) drop scope info on the parent but retain ADK custom
- attributes on the LLM/tool child spans.
- """
- for child in span.children:
- if is_adk_scope(child):
- return True
- if has_adk_descendant(child):
- return True
- return False
-
-
-def is_adk_scope(span: Span) -> bool:
- """Return True for spans emitted by Google ADK instrumentation.
-
- Recognized signals (any one is sufficient):
- 1. ``otel.scope.name == "gcp.vertex.agent"`` — the canonical OTel scope.
- 2. ``gen_ai.system == "gcp.vertex.agent"`` — the per-span semconv marker.
- Tempo's compactor sometimes drops/merges scope info, so this fallback
- is required for round-tripped Tempo exports.
- 3. Any ``gcp.vertex.agent.*`` custom attribute (llm_request, llm_response,
- tool_call_args, tool_response, invocation_id, session_id, event_id).
- These are unambiguous ADK markers.
- """
- if span.get_tag(OTEL_SCOPE) == ADK_SCOPE_VALUE:
- return True
- if span.get_tag(OTEL_GENAI_SYSTEM) == ADK_SCOPE_VALUE:
- return True
- for marker in _ADK_ATTR_MARKERS:
- if span.get_tag(marker) is not None:
- return True
- return False
-
-
-def is_adk_generate_content_llm_span(span: Span) -> bool:
- if not (span.operation_name.startswith("generate_content") or span.get_tag(OTEL_GENAI_OP) == "generate_content"):
- return False
- return bool(span.get_tag(ADK_LLM_REQUEST) or span.get_tag(ADK_LLM_RESPONSE))
-
-
-def is_adk_llm_span(span: Span) -> bool:
- return span.operation_name.startswith("call_llm") or is_adk_generate_content_llm_span(span)
-
-
-def find_adk_llm_spans_in(root: Span) -> list[Span]:
- call_llm_spans: list[Span] = []
- generate_content_spans: list[Span] = []
-
- def collect(span: Span) -> None:
- if span.operation_name.startswith("call_llm"):
- call_llm_spans.append(span)
- elif is_adk_generate_content_llm_span(span):
- generate_content_spans.append(span)
-
- _walk_descendants(root, collect)
- call_llm_spans.sort(key=lambda s: s.start_time)
- generate_content_spans.sort(key=lambda s: s.start_time)
- return call_llm_spans or generate_content_spans
-
-
-def _walk_descendants(span: Span, visit) -> None:
- for child in span.children:
- visit(child)
- _walk_descendants(child, visit)
-
-
-def is_llm_span(span: Span) -> bool:
- return span.get_tag(OTEL_GENAI_REQUEST_MODEL) is not None
-
-
-def is_tool_span(span: Span) -> bool:
- return span.get_tag(OTEL_GENAI_TOOL_NAME) is not None
-
-
-def is_invocation_span(span: Span) -> bool:
- """Check if a span represents an agent invocation.
-
- Checks gen_ai.operation.name first (reliable for Strands and ADK),
- then falls back to keyword heuristics on the operation name.
- """
- op_name_attr = span.get_tag(OTEL_GENAI_OP)
- if op_name_attr == "invoke_agent":
- return True
-
- op_lower = span.operation_name.lower()
- invocation_keywords = ["agent", "chain", "executor", "workflow"]
- return any(keyword in op_lower for keyword in invocation_keywords)
-
-
-# ---------------------------------------------------------------------------
-# OTLP attribute flattening (shared by incremental_processor and processor)
-# ---------------------------------------------------------------------------
-
-
-def flatten_otlp_attributes(attrs_list: list[dict]) -> dict[str, Any]:
- """Convert OTLP attributes array [{key, value: {stringValue|...}}] to flat dict.
-
- Delegates to the shared ``AnyValue`` decoder so array/kvlist/bytes
- attributes survive instead of being dropped.
- """
- return decode_attributes(attrs_list)
-
-
-# ---------------------------------------------------------------------------
-# Format-aware extractor strategy
-# ---------------------------------------------------------------------------
-
-
-class TraceFormatExtractor(Protocol):
- def detect(self, trace: Trace) -> bool: ...
- def format_name(self) -> str: ...
- def find_invocation_spans(self, trace: Trace) -> list[Span]: ...
- def find_llm_spans_in(self, root: Span) -> list[Span]: ...
- def find_tool_spans_in(self, root: Span) -> list[Span]: ...
- def classify_span(self, span: Span) -> str | None:
- """Return 'llm', 'tool', 'invocation', or None."""
- ...
-
-
-class AdkExtractor:
- def detect(self, trace: Trace) -> bool:
- for span in trace.all_spans[:FORMAT_DETECTION_SPAN_LIMIT]:
- if is_adk_scope(span):
- return True
- for span in trace.all_spans[FORMAT_DETECTION_SPAN_LIMIT:]:
- if is_adk_scope(span):
- return True
- return False
-
- def format_name(self) -> str:
- return "adk"
-
- def find_invocation_spans(self, trace: Trace) -> list[Span]:
- matches: list[Span] = []
- for s in trace.all_spans:
- if not s.operation_name.startswith("invoke_agent"):
- continue
- if is_adk_scope(s) or has_adk_descendant(s):
- matches.append(s)
- matches.sort(key=lambda s: s.start_time)
- return matches
-
- def find_llm_spans_in(self, root: Span) -> list[Span]:
- return find_adk_llm_spans_in(root)
-
- def find_tool_spans_in(self, root: Span) -> list[Span]:
- results: list[Span] = []
- self._walk(root, lambda s: s.operation_name.startswith("execute_tool"), results)
- results.sort(key=lambda s: s.start_time)
- return results
-
- def classify_span(self, span: Span) -> str | None:
- if not is_adk_scope(span):
- return None
- if span.operation_name.startswith("invoke_agent"):
- return "invocation"
- if is_adk_llm_span(span):
- return "llm"
- if span.operation_name.startswith("execute_tool"):
- return "tool"
- return None
-
- @staticmethod
- def _walk(span: Span, predicate, acc: list[Span]) -> None:
- for child in span.children:
- if predicate(child):
- acc.append(child)
- AdkExtractor._walk(child, predicate, acc)
-
-
-class GenAIExtractor:
- def detect(self, trace: Trace) -> bool:
- for span in trace.all_spans[:FORMAT_DETECTION_SPAN_LIMIT]:
- if span.get_tag(OTEL_GENAI_REQUEST_MODEL) or span.get_tag(OTEL_GENAI_INPUT_MESSAGES):
- return True
- for span in trace.all_spans[FORMAT_DETECTION_SPAN_LIMIT:]:
- if span.get_tag(OTEL_GENAI_REQUEST_MODEL) or span.get_tag(OTEL_GENAI_INPUT_MESSAGES):
- return True
- return False
-
- def format_name(self) -> str:
- return "genai"
-
- def find_invocation_spans(self, trace: Trace) -> list[Span]:
- candidates = [s for s in trace.root_spans if is_invocation_span(s)]
- if not candidates:
- candidates = [s for s in trace.root_spans if self._has_llm_children(s)]
- if not candidates and trace.root_spans:
- llm_spans = [s for s in trace.root_spans if is_llm_span(s)]
- candidates = llm_spans if llm_spans else list(trace.root_spans)
- candidates.sort(key=lambda s: s.start_time)
- return candidates
-
- def find_llm_spans_in(self, root: Span) -> list[Span]:
- results: list[Span] = []
- self._walk(root, is_llm_span, results)
- results.sort(key=lambda s: s.start_time)
- return results
-
- def find_tool_spans_in(self, root: Span) -> list[Span]:
- results: list[Span] = []
- self._walk(root, is_tool_span, results)
- results.sort(key=lambda s: s.start_time)
- return results
-
- def classify_span(self, span: Span) -> str | None:
- if is_invocation_span(span):
- return "invocation"
- if is_tool_span(span):
- return "tool"
- if is_llm_span(span):
- return "llm"
- return None
-
- @staticmethod
- def _has_llm_children(span: Span) -> bool:
- for child in span.children:
- if is_llm_span(child):
- return True
- if GenAIExtractor._has_llm_children(child):
- return True
- return False
-
- @staticmethod
- def _walk(span: Span, predicate, acc: list[Span]) -> None:
- if predicate(span):
- acc.append(span)
- for child in span.children:
- GenAIExtractor._walk(child, predicate, acc)
-
-
-# Registry: ADK checked first (richer data, more specific detection).
-_EXTRACTORS: list[TraceFormatExtractor] = [AdkExtractor(), GenAIExtractor()] # type: ignore[list-item]
-
-
-def get_extractor(trace: Trace) -> TraceFormatExtractor:
- for ext in _EXTRACTORS:
- if ext.detect(trace):
- logger.debug("Trace %s: detected format %s", trace.trace_id, ext.format_name())
- return ext
- logger.warning("Trace %s: no format detected, defaulting to ADK", trace.trace_id)
- return _EXTRACTORS[0]
-
-
-# ---------------------------------------------------------------------------
-# Internal helpers
-# ---------------------------------------------------------------------------
-
-
-def parse_json(raw: str | dict | Any) -> dict | list | Any:
- if isinstance(raw, (dict, list)):
- return raw
- if isinstance(raw, str):
- try:
- return json.loads(raw)
- except json.JSONDecodeError:
- return {}
- return {}
diff --git a/src/agentevals/genai/__init__.py b/src/agentevals/genai/__init__.py
new file mode 100644
index 00000000..f7b7d47f
--- /dev/null
+++ b/src/agentevals/genai/__init__.py
@@ -0,0 +1 @@
+"""GenAI semantic convention layer: normalization overlay, turn extraction and case matching."""
diff --git a/src/agentevals/genai/extract.py b/src/agentevals/genai/extract.py
new file mode 100644
index 00000000..5fb92c86
--- /dev/null
+++ b/src/agentevals/genai/extract.py
@@ -0,0 +1,765 @@
+"""Turn extraction from GenAI telemetry.
+
+Rules, in brief (``otel_native_core_202610.md`` sections 4.5 and 16):
+
+* Spans are classified from the overlay's operation name, never from span names.
+* A turn is anchored on a workflow or agent span with no workflow, agent or tool ancestor. An
+ agent or workflow under a tool or another agent is a delegate inside that turn.
+* A root whose inference spans no agentic anchor covers anchors its own turn, without agent
+ attribution. An anchor with no inference, no tool span and no messages is not a turn.
+* Inference spans nested without an agent or tool in between collapse into one logical call
+ when the chain has exactly one leaf (wrapper spans over provider spans); with several leaves
+ each leaf is its own call. Usage is counted once per logical call.
+* Tool spans nested in a tool span with the same tool name (or the same ``gen_ai.tool.call.id``)
+ with no agent or model call between are one logical call:
+ a framework tool span over the MCP client and MCP server spans of the call it makes. The
+ outermost span is the call's ref, since it covers what the agent observed.
+* The trajectory comes from tool spans plus the ``tool_call`` parts of the model outputs that no
+ span claims, with results joined from ``tool_call_response`` parts of later calls. Tool spans
+ without arguments or result are completed from those parts (by call id, else by tool name in
+ order), never overriding what the span carries.
+* Outputs of calls under a tool span (AgentTool delegates) are not the turn's own speech: they
+ are excluded from intermediate and final outputs, but their usage still counts.
+* Within a conversation, a root anchored turn whose first call's input ends with a tool response,
+ following a turn whose last call requested tools, continues that turn (provider only telemetry
+ puts each model call of a tool round in its own trace). When both sides carry call ids, the
+ response must answer one of the requested calls. This reads message content; with
+ content capture off the turns stay split and the later one carries a warning.
+
+Every walk is iterative, so adversarial nesting depth cannot exhaust the stack.
+"""
+
+from __future__ import annotations
+
+from collections.abc import Iterable, Sequence
+from dataclasses import dataclass, field
+from typing import Any
+
+from ..otel.model import (
+ STATUS_ERROR,
+ STATUS_OK,
+ LogRecord,
+ Span,
+ Trace,
+ attr_float,
+ attr_int,
+ attr_str,
+ parse_json_value,
+)
+from . import semconv as sc
+from .messages import (
+ Message,
+ ends_with_tool_response,
+ has_content,
+ has_text,
+ text_of,
+ tool_calls_of,
+ tool_responses_of,
+ user_turn_messages,
+)
+from .model import Conversation, ExternalEvaluation, LlmCall, ToolCall, Turn, Usage
+from .overlay import SpanView, overlay
+
+INFERENCE = "inference"
+AGENT = "agent"
+WORKFLOW = "workflow"
+TOOL = "tool"
+OTHER = "other_genai"
+NON_GENAI = "non_genai"
+IGNORED = "ignored"
+
+AGENTIC = frozenset({AGENT, WORKFLOW})
+BREAKS_INFERENCE_CHAIN = frozenset({AGENT, WORKFLOW, TOOL})
+BREAKS_TOOL_CHAIN = frozenset({AGENT, WORKFLOW, INFERENCE})
+
+TOOL_FINISH_REASONS = frozenset({"tool_calls", "tool_call", "tool_use", "function_call"})
+
+
+def classify(view: SpanView) -> str:
+ if view.ignored:
+ return IGNORED
+ op = view.operation
+ if op in sc.INFERENCE_OPERATIONS:
+ return INFERENCE
+ if op == sc.OP_INVOKE_AGENT:
+ return AGENT
+ if op == sc.OP_INVOKE_WORKFLOW:
+ return WORKFLOW
+ if op == sc.OP_EXECUTE_TOOL:
+ return TOOL
+ if op:
+ return OTHER
+ return NON_GENAI
+
+
+@dataclass(slots=True)
+class _Info:
+ kind: str
+ view: SpanView
+ covered: bool = False
+ inference_parent: str | None = None
+ tool_parent: str | None = None
+ agent_name: str | None = None
+ under_tool: bool = False
+ anchor: str | None = None
+
+
+@dataclass(slots=True)
+class TraceAnalysis:
+ trace: Trace
+ info: dict[str, _Info]
+ anchors: list[str]
+ members: dict[str, list[str]]
+ warnings: list[str] = field(default_factory=list)
+
+ def view(self, span_id: str) -> SpanView:
+ return self.info[span_id].view
+
+
+def _views(trace: Trace) -> dict[str, SpanView]:
+ views = {sid: overlay(span, trace.logs_of(sid)) for sid, span in trace.spans.items()}
+ loose = [r for r in trace.orphan_logs if not r.span_id]
+ if loose:
+ inference = [sid for sid, v in views.items() if classify(v) == INFERENCE]
+ if len(inference) == 1:
+ sid = inference[0]
+ views[sid] = overlay(trace.spans[sid], [*trace.logs_of(sid), *loose])
+ return views
+
+
+def analyze(trace: Trace) -> TraceAnalysis:
+ """Classify spans and find turn anchors. Two depth first passes, both O(spans)."""
+ views = _views(trace)
+ info = {sid: _Info(kind=classify(v), view=v) for sid, v in views.items()}
+
+ agentic_anchors: set[str] = set()
+ stack: list[tuple[str, bool, str | None, str | None, bool, str | None]] = [
+ (r, False, None, None, False, None) for r in reversed(trace.roots)
+ ]
+ while stack:
+ sid, covered, inf_parent, agent_name, under_tool, tool_parent = stack.pop()
+ node = info[sid]
+ node.covered, node.inference_parent, node.under_tool = covered, inf_parent, under_tool
+ node.tool_parent = tool_parent
+ own_agent = attr_str(node.view.attrs, sc.AGENT_NAME)
+ if node.kind in AGENTIC and own_agent:
+ agent_name = own_agent
+ node.agent_name = agent_name or (own_agent if node.kind in (INFERENCE, TOOL) else None)
+ if node.kind in AGENTIC and not covered:
+ agentic_anchors.add(sid)
+ child_covered = covered or node.kind in BREAKS_INFERENCE_CHAIN
+ if node.kind == INFERENCE:
+ child_inf = sid
+ elif node.kind in BREAKS_INFERENCE_CHAIN:
+ child_inf = None
+ else:
+ child_inf = inf_parent
+ child_tool = under_tool or node.kind == TOOL
+ if node.kind == TOOL:
+ child_tool_parent = sid
+ elif node.kind in BREAKS_TOOL_CHAIN:
+ child_tool_parent = None
+ else:
+ child_tool_parent = tool_parent
+ for child in reversed(trace.children.get(sid, ())):
+ stack.append((child, child_covered, child_inf, agent_name, child_tool, child_tool_parent))
+
+ for root in trace.roots:
+ default_anchor = None if root in agentic_anchors else root
+ stack2: list[tuple[str, str | None]] = [(root, default_anchor)]
+ while stack2:
+ sid, current = stack2.pop()
+ if sid in agentic_anchors:
+ current = sid
+ info[sid].anchor = current
+ for child in trace.children.get(sid, ()):
+ stack2.append((child, current))
+
+ members: dict[str, list[str]] = {}
+ for sid, node in info.items():
+ if node.anchor is not None:
+ members.setdefault(node.anchor, []).append(sid)
+
+ anchors = []
+ warnings = list(trace.warnings)
+ for sid in trace.walk():
+ span_id = sid.span_id
+ if span_id not in members:
+ continue
+ kinds = {info[m].kind for m in members[span_id]}
+ if span_id in agentic_anchors:
+ view = info[span_id].view
+ has_messages = view.messages(sc.INPUT_MESSAGES) or view.messages(sc.OUTPUT_MESSAGES)
+ if INFERENCE in kinds or TOOL in kinds or has_messages:
+ anchors.append(span_id)
+ else:
+ warnings.append(f"agent span {span_id} has no inference, tools or messages; not a turn")
+ elif INFERENCE in kinds:
+ anchors.append(span_id)
+ return TraceAnalysis(trace=trace, info=info, anchors=anchors, members=members, warnings=warnings)
+
+
+# ---------------------------------------------------------------- logical LLM calls
+
+
+def _usage(view: SpanView) -> Usage | None:
+ attrs = view.attrs
+ values = {
+ "input_tokens": attr_int(attrs, sc.USAGE_INPUT_TOKENS),
+ "output_tokens": attr_int(attrs, sc.USAGE_OUTPUT_TOKENS),
+ "cache_read_input_tokens": attr_int(attrs, sc.USAGE_CACHE_READ_INPUT_TOKENS),
+ "cache_write_input_tokens": attr_int(attrs, sc.USAGE_CACHE_WRITE_INPUT_TOKENS),
+ "reasoning_output_tokens": attr_int(attrs, sc.USAGE_REASONING_OUTPUT_TOKENS),
+ }
+ if values["input_tokens"] is None and values["output_tokens"] is None:
+ return None
+ return Usage(**{k: max(0, v or 0) for k, v in values.items()})
+
+
+def _status(span: Span) -> str:
+ if span.status_code == STATUS_ERROR:
+ return "error"
+ if span.status_code == STATUS_OK:
+ return "ok"
+ return "unset"
+
+
+def _chains(tops: list[str], inf_children: dict[str, list[str]]) -> list[list[str]]:
+ """Logical calls as leaf first chains of span ids. One post order pass counts leaves, so the
+ grouping is linear in the number of inference spans."""
+ leaf_count: dict[str, int] = {}
+ single_leaf: dict[str, str] = {}
+ for top in tops:
+ order: list[str] = []
+ walk = [top]
+ while walk:
+ node = walk.pop()
+ order.append(node)
+ walk.extend(inf_children.get(node, ()))
+ for node in reversed(order):
+ kids = inf_children.get(node, ())
+ if not kids:
+ leaf_count[node] = 1
+ single_leaf[node] = node
+ else:
+ leaf_count[node] = sum(leaf_count[k] for k in kids)
+ if leaf_count[node] == 1:
+ single_leaf[node] = single_leaf[kids[0]]
+
+ parent_of = {c: p for p, cs in inf_children.items() for c in cs}
+ out: list[list[str]] = []
+ pending = list(reversed(tops))
+ while pending:
+ node = pending.pop()
+ if leaf_count[node] == 1:
+ chain = [single_leaf[node]]
+ while chain[-1] != node:
+ chain.append(parent_of[chain[-1]])
+ out.append(chain)
+ else:
+ pending.extend(reversed(inf_children.get(node, [])))
+ return out
+
+
+def _first(chain: Sequence[SpanView], fn) -> Any:
+ for view in chain:
+ value = fn(view)
+ if value:
+ return value
+ return None
+
+
+def _logical_call(analysis: TraceAnalysis, chain_ids: list[str]) -> LlmCall:
+ chain = [analysis.view(s) for s in chain_ids]
+ leaf = chain[0]
+ status = _first(chain, lambda v: _status(v.span) if _status(v.span) != "unset" else None) or "unset"
+ error_type = _first(chain, lambda v: attr_str(v.attrs, sc.ERROR_TYPE))
+ if any(v.exception_event for v in chain) and status == "unset":
+ status = "error"
+ if status == "error" and not error_type:
+ error_type = sc.ERROR_TYPE_OTHER
+ info = analysis.info[chain_ids[0]]
+ finish = _first(
+ chain,
+ lambda v: (
+ v.attrs.get(sc.RESPONSE_FINISH_REASONS)
+ if isinstance(v.attrs.get(sc.RESPONSE_FINISH_REASONS), list)
+ else None
+ ),
+ )
+ return LlmCall(
+ ref=leaf.span.ref,
+ wrapper_ref=chain[-1].span.ref if len(chain) > 1 else None,
+ agent_name=info.agent_name or _first(chain, lambda v: attr_str(v.attrs, sc.AGENT_NAME)),
+ operation=leaf.operation or sc.OP_CHAT,
+ provider=_first(chain, lambda v: attr_str(v.attrs, sc.PROVIDER_NAME)),
+ request_model=_first(chain, lambda v: attr_str(v.attrs, sc.REQUEST_MODEL)),
+ response_model=_first(chain, lambda v: attr_str(v.attrs, sc.RESPONSE_MODEL)),
+ response_id=_first(chain, lambda v: attr_str(v.attrs, sc.RESPONSE_ID)),
+ usage=_first(chain, _usage),
+ finish_reasons=[str(r) for r in finish or []],
+ system_instructions=_first(chain, lambda v: v.messages(sc.SYSTEM_INSTRUCTIONS)) or [],
+ input_messages=_first(chain, lambda v: v.messages(sc.INPUT_MESSAGES)) or [],
+ output_messages=_first(chain, lambda v: v.messages(sc.OUTPUT_MESSAGES)) or [],
+ tool_definitions=_first(chain, lambda v: v.messages(sc.TOOL_DEFINITIONS)) or [],
+ status=status,
+ error_type=error_type,
+ delegated=info.under_tool,
+ start_ns=min(v.span.start_time_unix_nano for v in chain),
+ end_ns=max(v.span.end_time_unix_nano for v in chain),
+ )
+
+
+def _llm_calls(analysis: TraceAnalysis, member_ids: list[str]) -> list[LlmCall]:
+ info = analysis.info
+ inference = [m for m in member_ids if info[m].kind == INFERENCE]
+ inf_set = set(inference)
+ inf_children: dict[str, list[str]] = {}
+ tops = []
+ for sid in inference:
+ parent = info[sid].inference_parent
+ if parent in inf_set:
+ inf_children.setdefault(parent, []).append(sid)
+ else:
+ tops.append(sid)
+ calls = [_logical_call(analysis, chain) for chain in _chains(tops, inf_children)]
+ calls.sort(key=lambda c: (c.start_ns, c.end_ns))
+ return calls
+
+
+# ---------------------------------------------------------------- tool calls
+
+
+def _json_or_raw(value: Any) -> Any:
+ if isinstance(value, str):
+ parsed = parse_json_value(value)
+ return value if parsed is None else parsed
+ return value
+
+
+def _same_tool_call(outer: SpanView, inner: SpanView) -> bool:
+ """Equal names, or equal call ids. Differing ids prove nothing: each layer stamps its own (an MCP
+ server never sees the model's call id and records the JSON-RPC request id instead)."""
+ name = attr_str(outer.attrs, sc.TOOL_NAME)
+ if name is not None and name == attr_str(inner.attrs, sc.TOOL_NAME):
+ return True
+ outer_id = attr_str(outer.attrs, sc.TOOL_CALL_ID)
+ return outer_id is not None and outer_id == attr_str(inner.attrs, sc.TOOL_CALL_ID)
+
+
+def _tool_chains(analysis: TraceAnalysis, ordered: list[str]) -> list[list[str]]:
+ """Tool spans of a turn grouped into logical calls, outermost span first.
+
+ ``ordered`` is depth first, so a span's enclosing tool span is resolved before the span itself
+ and the grouping stays linear however deep the nesting. Calls come back in start order of their
+ outermost span.
+ """
+ info = analysis.info
+ outermost: dict[str, str] = {}
+ chains: dict[str, list[str]] = {}
+ for sid in ordered:
+ if info[sid].kind != TOOL:
+ continue
+ parent = info[sid].tool_parent
+ if parent in outermost and _same_tool_call(info[parent].view, info[sid].view):
+ outermost[sid] = outermost[parent]
+ else:
+ outermost[sid] = sid
+ chains.setdefault(outermost[sid], []).append(sid)
+ spans = analysis.trace.spans
+ return sorted(chains.values(), key=lambda chain: (spans[chain[0]].start_time_unix_nano, chain[0]))
+
+
+def _present(views: Sequence[SpanView], key: str) -> Any:
+ return next((v.attrs[key] for v in views if v.attrs.get(key) is not None), None)
+
+
+def _tool_calls_from_spans(analysis: TraceAnalysis, chains: list[list[str]], warnings: list[str]) -> list[ToolCall]:
+ out = []
+ for chain in chains:
+ views = [analysis.info[s].view for s in chain]
+ span = views[0].span
+ name = _first(views, lambda v: attr_str(v.attrs, sc.TOOL_NAME))
+ if not name:
+ tokens = span.name.split()
+ name = tokens[1] if len(tokens) >= 2 and tokens[0] == sc.OP_EXECUTE_TOOL else span.name
+ warnings.append(f"tool span {chain[0]} has no gen_ai.tool.name; used span name token {name!r}")
+ status = _first(views, lambda v: _status(v.span) if _status(v.span) != "unset" else None)
+ error_type = _first(views, lambda v: attr_str(v.attrs, sc.ERROR_TYPE))
+ is_error = status == "error" or error_type is not None
+ out.append(
+ ToolCall(
+ ref=span.ref,
+ inner_refs=[v.span.ref for v in views[1:]],
+ agent_name=analysis.info[chain[0]].agent_name,
+ name=name,
+ call_id=_first(views, lambda v: attr_str(v.attrs, sc.TOOL_CALL_ID)),
+ arguments=_json_or_raw(_present(views, sc.TOOL_CALL_ARGUMENTS)),
+ result=_json_or_raw(_present(views, sc.TOOL_CALL_RESULT)),
+ is_error=is_error,
+ error_type=error_type or (sc.ERROR_TYPE_OTHER if is_error else None),
+ start_ns=span.start_time_unix_nano,
+ )
+ )
+ return out
+
+
+def _tool_calls_from_parts(calls: list[LlmCall], warnings: list[str] | None = None) -> list[ToolCall]:
+ """Tool calls from ``tool_call`` parts, results from later ``tool_call_response`` parts.
+
+ A response pairs with its call by id. A response whose id matches no call in the turn (some
+ producers number call and response parts independently) pairs with the next unclaimed call
+ in order, by tool name when the response names one. Either way the response must first appear
+ in a later call's input than the one that requested the tool: a result already in a call's own
+ input answers an earlier request, never the ones that call makes.
+ """
+ responses: list[tuple[int, dict[str, Any]]] = []
+ seen: set = set()
+ for index, call in enumerate(calls):
+ for response in tool_responses_of(call.input_messages):
+ key = response["id"] or (response.get("name"), repr(response["response"]))
+ if key not in seen:
+ seen.add(key)
+ responses.append((index, response))
+ requested = [(index, call, tc) for index, call in enumerate(calls) for tc in tool_calls_of(call.output_messages)]
+ call_ids = {tc["id"] for _, _, tc in requested if tc["id"]}
+ claimed: set[int] = set()
+ out = []
+ for index, call, tc in requested:
+ open_ = [(i, r) for i, (at, r) in enumerate(responses) if i not in claimed and at > index]
+ match = next((i for i, r in open_ if tc["id"] and r["id"] == tc["id"]), None)
+ if match is None:
+ match = next(
+ (i for i, r in open_ if r["id"] not in call_ids and r.get("name") in (None, tc["name"])),
+ None,
+ )
+ if match is not None and responses[match][1]["id"] and warnings is not None:
+ warnings.append(
+ f"tool {tc['name']} result joined by order"
+ f" (response id {responses[match][1]['id']!r} matches no call)"
+ )
+ if match is not None:
+ claimed.add(match)
+ out.append(
+ ToolCall(
+ ref=None,
+ agent_name=call.agent_name,
+ name=tc["name"],
+ call_id=tc["id"],
+ arguments=tc["arguments"],
+ result=responses[match][1]["response"] if match is not None else None,
+ start_ns=call.end_ns,
+ )
+ )
+ return out
+
+
+def _is_empty(value: Any) -> bool:
+ return value is None or value == {} or value == "" or value == []
+
+
+def _fill_from_parts(span_tools: list[ToolCall], calls: list[LlmCall], warnings: list[str]) -> list[ToolCall]:
+ """Complete tool spans that carry no arguments or result from the turn's message parts, and
+ return them together with the part tool calls no span claimed (a client side tool without a
+ span, say). An unclaimed call goes right after the call requested before it, so the trajectory
+ keeps the order the model asked for.
+
+ Some producers (ADK with legacy content off) record arguments and results only as
+ ``tool_call`` / ``tool_call_response`` parts and give the span a different call id than
+ the part. Each span claims one part in order: by call id, else the first unclaimed part
+ with the same tool name. Values already on the span are never replaced.
+ """
+ part_tools = _tool_calls_from_parts(calls, warnings)
+ if not part_tools:
+ return span_tools
+ claimed: dict[int, ToolCall] = {}
+ for tool in span_tools:
+ match = next(
+ (i for i, p in enumerate(part_tools) if i not in claimed and tool.call_id and p.call_id == tool.call_id),
+ None,
+ )
+ by_name = False
+ if match is None:
+ match = next((i for i, p in enumerate(part_tools) if i not in claimed and p.name == tool.name), None)
+ by_name = match is not None
+ if match is None:
+ continue
+ claimed[match] = tool
+ part = part_tools[match]
+ filled = []
+ if _is_empty(tool.arguments) and not _is_empty(part.arguments):
+ tool.arguments = part.arguments
+ filled.append("arguments")
+ if _is_empty(tool.result) and not _is_empty(part.result):
+ tool.result = part.result
+ filled.append("result")
+ if filled and by_name:
+ warnings.append(
+ f"tool {tool.name} {' and '.join(filled)} joined from message parts by name (call ids differ)"
+ )
+ out = list(span_tools)
+ previous: ToolCall | None = None
+ for index, part in enumerate(part_tools):
+ if index in claimed:
+ previous = claimed[index]
+ continue
+ warnings.append(f"tool {part.name} appears only in message parts, without a tool span")
+ position = next(i for i, t in enumerate(out) if t is previous) + 1 if previous is not None else 0
+ out.insert(position, part)
+ previous = part
+ return out
+
+
+# ---------------------------------------------------------------- external evaluations
+
+
+def _external_evaluations(view: SpanView, logs: Iterable[LogRecord]) -> list[ExternalEvaluation]:
+ found: list[tuple[Any, str | None]] = [
+ (e.attributes, None) for e in view.span.events if e.name == sc.EVENT_EVALUATION_RESULT
+ ]
+ found += [
+ (r.attributes, attr_str(r.resource.attributes, sc.SERVICE_NAME))
+ for r in logs
+ if r.event_name == sc.EVENT_EVALUATION_RESULT
+ ]
+ out = []
+ for attrs, service in found:
+ name = attr_str(attrs, sc.EVALUATION_NAME)
+ if not name:
+ continue
+ out.append(
+ ExternalEvaluation(
+ ref=view.span.ref,
+ name=name,
+ score_value=attr_float(attrs, sc.EVALUATION_SCORE_VALUE),
+ score_label=attr_str(attrs, sc.EVALUATION_SCORE_LABEL),
+ explanation=attr_str(attrs, sc.EVALUATION_EXPLANATION),
+ source_service=service,
+ )
+ )
+ return out
+
+
+# ---------------------------------------------------------------- turns
+
+
+def _turn(analysis: TraceAnalysis, anchor: str) -> Turn:
+ trace, info = analysis.trace, analysis.info
+ member_ids = analysis.members[anchor]
+ member_set = set(member_ids)
+ ordered = [s.span_id for s in trace.walk(anchor) if s.span_id in member_set]
+ anchor_view = info[anchor].view
+ warnings: list[str] = []
+
+ calls = _llm_calls(analysis, ordered)
+ tool_chains = _tool_chains(analysis, ordered)
+ if tool_chains:
+ tools = _fill_from_parts(_tool_calls_from_spans(analysis, tool_chains, warnings), calls, warnings)
+ else:
+ tools = _tool_calls_from_parts(calls, warnings)
+
+ anchor_input = anchor_view.messages(sc.INPUT_MESSAGES)
+ if anchor_input:
+ user_input = user_turn_messages(anchor_input) or anchor_input
+ else:
+ first = next((c for c in calls if c.input_messages), None)
+ user_input = user_turn_messages(first.input_messages) if first else []
+
+ own = [c for c in calls if not c.delegated] or calls
+ speaking = [c for c in own if has_text(c.output_messages)]
+ anchor_output = anchor_view.messages(sc.OUTPUT_MESSAGES)
+ final_call = max(speaking, key=lambda c: (c.end_ns, c.start_ns)) if speaking else None
+ if anchor_output:
+ final_output: list[Message] = anchor_output
+ intermediate = [m for c in speaking for m in c.output_messages if has_text([m])]
+ if intermediate and text_of(intermediate[-1:]) == text_of(anchor_output):
+ intermediate = intermediate[:-1]
+ else:
+ final_output = final_call.output_messages if final_call else []
+ intermediate = [m for c in speaking if c is not final_call for m in c.output_messages if has_text([m])]
+
+ usage = Usage()
+ for call in calls:
+ if call.usage:
+ usage = usage + call.usage
+
+ agents: set[str] = set()
+ for m in ordered:
+ name = attr_str(info[m].view.attrs, sc.AGENT_NAME) if info[m].kind in AGENTIC else None
+ if name:
+ agents.add(name)
+ agents.update(c.agent_name for c in calls if c.agent_name)
+ agents.update(t.agent_name for t in tools if t.agent_name)
+
+ anchor_span = anchor_view.span
+ anchor_status = _status(anchor_span)
+ error_type = attr_str(anchor_view.attrs, sc.ERROR_TYPE)
+ if anchor_status == "error" and not error_type:
+ error_type = sc.ERROR_TYPE_OTHER
+
+ conversation_id = None
+ framework_ids: dict[str, str] = {}
+ external: list[ExternalEvaluation] = []
+ for m in ordered:
+ view = info[m].view
+ conversation_id = conversation_id or attr_str(view.attrs, sc.CONVERSATION_ID)
+ for k, v in view.framework_ids.items():
+ framework_ids.setdefault(k, v)
+ external.extend(_external_evaluations(view, trace.logs_of(m)))
+
+ content = (
+ bool(anchor_input or anchor_output)
+ or any(has_content(c.input_messages) or has_content(c.output_messages) for c in calls)
+ or any(t.arguments is not None or t.result is not None for t in tools)
+ )
+
+ spans = [trace.spans[m] for m in ordered]
+ return Turn(
+ ref=anchor_span.ref,
+ anchor_kind=info[anchor].kind if info[anchor].kind in AGENTIC else "root",
+ label=attr_str(anchor_view.attrs, sc.WORKFLOW_NAME) or attr_str(anchor_view.attrs, sc.AGENT_NAME),
+ agent_name=attr_str(anchor_view.attrs, sc.AGENT_NAME)
+ or next((c.agent_name for c in calls if c.agent_name), None),
+ agents=sorted(agents),
+ user_input=user_input,
+ final_output=final_output,
+ intermediate_outputs=intermediate,
+ llm_calls=calls,
+ tool_calls=tools,
+ usage=usage,
+ start_ns=min(s.start_time_unix_nano for s in spans),
+ end_ns=max(s.end_time_unix_nano for s in spans),
+ status=anchor_status,
+ error_type=error_type,
+ content_captured=content,
+ conversation_id=conversation_id,
+ framework_ids=framework_ids,
+ external_evaluations=external,
+ warnings=warnings,
+ )
+
+
+def extract_turns(trace: Trace) -> list[Turn]:
+ analysis = analyze(trace)
+ return [_turn(analysis, anchor) for anchor in analysis.anchors]
+
+
+def _last_call(turn: Turn) -> LlmCall | None:
+ return max(turn.llm_calls, key=lambda c: (c.end_ns, c.start_ns)) if turn.llm_calls else None
+
+
+def _first_call(turn: Turn) -> LlmCall | None:
+ return min(turn.llm_calls, key=lambda c: (c.start_ns, c.end_ns)) if turn.llm_calls else None
+
+
+def _continues(previous: Turn, turn: Turn) -> bool:
+ if turn.anchor_kind != "root":
+ return False
+ first, last = _first_call(turn), _last_call(previous)
+ if first is None or last is None or not ends_with_tool_response(first.input_messages):
+ return False
+ requested = tool_calls_of(last.output_messages)
+ requested_ids = {tc["id"] for tc in requested if tc["id"]}
+ answered_ids = {r["id"] for r in tool_responses_of(first.input_messages) if r["id"]}
+ if requested_ids and answered_ids:
+ return bool(requested_ids & answered_ids)
+ return bool(requested)
+
+
+def _maybe_continues(previous: Turn, turn: Turn) -> bool:
+ """A continuation that cannot be confirmed because message content was not captured."""
+ if turn.anchor_kind != "root":
+ return False
+ first, last = _first_call(turn), _last_call(previous)
+ return (
+ first is not None
+ and last is not None
+ and not first.input_messages
+ and bool(TOOL_FINISH_REASONS.intersection(last.finish_reasons))
+ )
+
+
+def _merge(previous: Turn, turn: Turn) -> Turn:
+ calls = sorted([*previous.llm_calls, *turn.llm_calls], key=lambda c: (c.start_ns, c.end_ns))
+ warnings = [*previous.warnings, *turn.warnings]
+ span_tools = [t.model_copy() for t in (*previous.tool_calls, *turn.tool_calls) if t.ref is not None]
+ if span_tools:
+ tools = _fill_from_parts(span_tools, calls, warnings)
+ else:
+ tools = _tool_calls_from_parts(calls, warnings)
+
+ if turn.final_output:
+ final_output = turn.final_output
+ intermediate = [*previous.intermediate_outputs, *previous.final_output, *turn.intermediate_outputs]
+ else:
+ final_output = previous.final_output
+ intermediate = [*previous.intermediate_outputs, *turn.intermediate_outputs]
+
+ failed = previous if previous.status == "error" else turn if turn.status == "error" else None
+ framework_ids = dict(turn.framework_ids)
+ framework_ids.update(previous.framework_ids)
+ return previous.model_copy(
+ update={
+ "agent_name": previous.agent_name or turn.agent_name,
+ "agents": sorted({*previous.agents, *turn.agents}),
+ "user_input": previous.user_input or turn.user_input,
+ "final_output": final_output,
+ "intermediate_outputs": intermediate,
+ "llm_calls": calls,
+ "tool_calls": tools,
+ "usage": previous.usage + turn.usage,
+ "start_ns": min(previous.start_ns, turn.start_ns),
+ "end_ns": max(previous.end_ns, turn.end_ns),
+ "status": failed.status if failed else previous.status,
+ "error_type": failed.error_type if failed else previous.error_type,
+ "content_captured": previous.content_captured or turn.content_captured,
+ "conversation_id": previous.conversation_id or turn.conversation_id,
+ "framework_ids": framework_ids,
+ "external_evaluations": [*previous.external_evaluations, *turn.external_evaluations],
+ "warnings": list(dict.fromkeys(warnings)),
+ }
+ )
+
+
+def _join_continuations(turns: list[Turn]) -> list[Turn]:
+ out: list[Turn] = []
+ for turn in turns:
+ if out and _continues(out[-1], turn):
+ out[-1] = _merge(out[-1], turn)
+ continue
+ if out and _maybe_continues(out[-1], turn):
+ warning = (
+ f"turn {turn.ref.span_id} may continue turn {out[-1].ref.span_id} after a tool call, "
+ "but message content was not captured; kept as its own turn"
+ )
+ turn = turn.model_copy(update={"warnings": [*turn.warnings, warning]})
+ out.append(turn)
+ return out
+
+
+def extract_conversation(traces: Iterable[Trace], key: str | None = None) -> Conversation:
+ """All turns of ``traces`` in start time order, indexed, with tool round continuations joined."""
+ traces = list(traces)
+ return conversation_from_turns(traces, [extract_turns(t) for t in traces], key)
+
+
+def conversation_from_turns(
+ traces: Sequence[Trace], turns_per_trace: Iterable[Sequence[Turn]], key: str | None = None
+) -> Conversation:
+ """Join already extracted per trace turns into a conversation. The input turns are never mutated,
+ so callers may memoize :func:`extract_turns` per trace."""
+ traces = list(traces)
+ turns = [t for per_trace in turns_per_trace for t in per_trace]
+ turns.sort(key=lambda t: (t.start_ns, t.ref.span_id))
+ turns = [t.model_copy(update={"index": i}) for i, t in enumerate(_join_continuations(turns))]
+ conversation_id = next((t.conversation_id for t in turns if t.conversation_id), None)
+ starts: dict[str, int] = {}
+ for trace in traces:
+ starts.setdefault(trace.trace_id, trace.start_time_unix_nano)
+ trace_ids = sorted(starts, key=starts.__getitem__)
+ return Conversation(
+ key=key or (traces[0].trace_id if traces else ""),
+ conversation_id=conversation_id,
+ trace_ids=trace_ids,
+ turns=turns,
+ )
diff --git a/src/agentevals/genai/grouping.py b/src/agentevals/genai/grouping.py
new file mode 100644
index 00000000..5554053e
--- /dev/null
+++ b/src/agentevals/genai/grouping.py
@@ -0,0 +1,70 @@
+"""Group traces into conversations by identity attributes.
+
+The key is the first value present, in this order:
+
+1. resource ``agentevals.session_name``
+2. ``gen_ai.conversation.id`` on a span, then on the resource
+3. ``session.id`` on a span, then on the resource
+4. the trace id
+
+Values are caller chosen, so they are coerced to text and capped before use.
+"""
+
+from __future__ import annotations
+
+from collections.abc import Iterable, Mapping
+from typing import Any, Literal
+
+from ..otel.identity import SESSION_NAME, coerce_key
+from ..otel.model import Span, Trace
+from .semconv import CONVERSATION_ID, SESSION_ID
+
+KeyKind = Literal["name", "conversation", "session_id", "trace"]
+
+
+def _first(attr_maps: Iterable[Mapping[str, Any]], key: str) -> str | None:
+ for attrs in attr_maps:
+ value = coerce_key(attrs.get(key))
+ if value:
+ return value
+ return None
+
+
+def identity_key(items: Iterable[tuple[Mapping[str, Any], Mapping[str, Any]]]) -> tuple[KeyKind, str] | None:
+ """The identity key of a set of spans or log records, given as ``(attributes, resource attributes)``."""
+ items = list(items)
+ resources = [r for _, r in items]
+ name = _first(resources, SESSION_NAME)
+ if name:
+ return "name", name
+ for key, kind in ((CONVERSATION_ID, "conversation"), (SESSION_ID, "session_id")):
+ value = _first((a for a, _ in items), key) or _first(resources, key)
+ if value:
+ return kind, value
+ return None
+
+
+def by_start(spans: Iterable[Span]) -> list[Span]:
+ """Spans in start order, so the outermost span's identity wins over a delegate's whatever order
+ the spans arrived in (an A2A sub agent can carry its own ``gen_ai.conversation.id``)."""
+ return sorted(spans, key=lambda s: (s.start_time_unix_nano, s.span_id))
+
+
+def conversation_key(trace: Trace) -> tuple[KeyKind, str]:
+ key = identity_key((s.attributes, s.resource.attributes) for s in by_start(trace.spans.values()))
+ return key or ("trace", trace.trace_id)
+
+
+def has_session_name(traces: Iterable[Trace]) -> bool:
+ return any(conversation_key(t)[0] == "name" for t in traces)
+
+
+def group_traces(traces: Iterable[Trace], by_conversation: bool) -> list[tuple[str, list[Trace]]]:
+ """Evaluation groups in first-seen order. Without conversation grouping each trace stands alone."""
+ groups: dict[str, list[Trace]] = {}
+ for trace in traces:
+ key = conversation_key(trace)[1] if by_conversation else trace.trace_id
+ groups.setdefault(key, []).append(trace)
+ for members in groups.values():
+ members.sort(key=lambda t: t.start_time_unix_nano)
+ return list(groups.items())
diff --git a/src/agentevals/genai/matching.py b/src/agentevals/genai/matching.py
new file mode 100644
index 00000000..296fed93
--- /dev/null
+++ b/src/agentevals/genai/matching.py
@@ -0,0 +1,106 @@
+"""Select the expected conversation (golden case) for an actual conversation and align turns.
+
+Selection is explicit and never guesses:
+
+1. an explicit case id (``agentevals.eval.case.id`` on the resource or anchor span);
+2. otherwise the normalized first user text (casefolded, whitespace collapsed);
+3. otherwise, when the caller paired exactly one golden case with exactly one evaluation
+ group, that case (``single_case``): the pairing is explicit, nothing is guessed;
+4. otherwise no case, with a reason. There is no fallback to the first case.
+
+When several cases share the first user text, the one with the same turn count wins; if that
+still leaves more than one, the match is ambiguous.
+"""
+
+from __future__ import annotations
+
+import re
+from collections.abc import Sequence
+from dataclasses import dataclass, field
+from typing import Any
+
+from .messages import text_of
+from .model import Conversation, Turn
+
+EVAL_CASE_ID = "agentevals.eval.case.id"
+
+_WS = re.compile(r"\s+")
+
+
+def normalize_text(value: str | None) -> str:
+ return _WS.sub(" ", value or "").strip().casefold()
+
+
+@dataclass(frozen=True, slots=True)
+class ExpectedTurn:
+ """One golden turn. Tool calls are ``{"id", "name", "arguments"}``, responses ``{"id", "name", "response"}``."""
+
+ user_text: str | None
+ final_text: str | None = None
+ tool_calls: tuple[dict[str, Any], ...] = ()
+ tool_responses: tuple[dict[str, Any], ...] = ()
+ invocation_id: str | None = None
+
+
+@dataclass(slots=True)
+class ExpectedConversation:
+ case_id: str
+ turns: list[ExpectedTurn]
+ raw: Any = None
+
+
+@dataclass(frozen=True, slots=True)
+class MatchResult:
+ case: ExpectedConversation | None
+ method: str | None = None
+ reason: str | None = None
+
+
+@dataclass(slots=True)
+class Alignment:
+ pairs: list[tuple[Turn, ExpectedTurn]] = field(default_factory=list)
+ missing_turns: int = 0
+ unexpected_turns: int = 0
+
+
+def select_case(
+ conversation: Conversation,
+ cases: Sequence[ExpectedConversation],
+ explicit_case_id: str | None = None,
+ single_pairing: bool = False,
+) -> MatchResult:
+ if explicit_case_id:
+ for case in cases:
+ if case.case_id == explicit_case_id:
+ return MatchResult(case, method="explicit")
+ return MatchResult(None, reason=f"eval case {explicit_case_id!r} not found")
+
+ if not conversation.turns:
+ return MatchResult(None, reason="no turns to match")
+ first_user = normalize_text(text_of(conversation.turns[0].user_input))
+ if not first_user:
+ if single_pairing and len(cases) == 1:
+ return MatchResult(cases[0], method="single_case")
+ return MatchResult(None, reason="no user input to match")
+
+ candidates = [c for c in cases if c.turns and normalize_text(c.turns[0].user_text) == first_user]
+ if not candidates:
+ if single_pairing and len(cases) == 1:
+ return MatchResult(cases[0], method="single_case")
+ return MatchResult(None, reason="no matching eval case")
+ if len(candidates) > 1:
+ same_length = [c for c in candidates if len(c.turns) == len(conversation.turns)]
+ if len(same_length) != 1:
+ return MatchResult(None, reason="ambiguous eval case")
+ candidates = same_length
+ return MatchResult(candidates[0], method="user_text")
+
+
+def align(actual: Sequence[Turn], expected: Sequence[ExpectedTurn]) -> Alignment:
+ """Pair turns by index and count the turns present on only one side."""
+ n = min(len(actual), len(expected))
+ return Alignment(
+ pairs=list(zip(actual[:n], expected[:n], strict=True)),
+ missing_turns=max(0, len(expected) - len(actual)),
+ unexpected_turns=max(0, len(actual) - len(expected)),
+ )
diff --git a/src/agentevals/genai/messages.py b/src/agentevals/genai/messages.py
new file mode 100644
index 00000000..90c52c7b
--- /dev/null
+++ b/src/agentevals/genai/messages.py
@@ -0,0 +1,264 @@
+"""Tolerant readers for GenAI messages and parts.
+
+Messages are plain dicts in the shape of ``gen-ai-input-messages.json`` /
+``gen-ai-output-messages.json`` (semantic-conventions-genai 4f85037): ``{"role", "parts", ...}``
+with parts such as ``text``, ``tool_call``, ``tool_call_response``, ``reasoning``, ``blob``,
+``uri``, ``file``, ``server_tool_call`` and ``compaction``. Unknown parts and extra fields are
+kept verbatim. Nothing here raises on malformed input; unusable entries are skipped.
+
+The converters at the bottom turn the legacy shapes the overlay shims read (Google Content
+from ADK, OpenAI style bodies from deprecated message events) into that shape.
+"""
+
+from __future__ import annotations
+
+import json
+from collections.abc import Iterable, Mapping
+from typing import Any
+
+from ..otel.model import parse_json_value
+from .semconv import MESSAGE_PLACEHOLDERS
+
+Message = dict[str, Any]
+Part = dict[str, Any]
+
+TEXT = "text"
+TOOL_CALL = "tool_call"
+TOOL_CALL_RESPONSE = "tool_call_response"
+REASONING = "reasoning"
+
+
+def _as_text(value: Any) -> str | None:
+ if isinstance(value, str):
+ return value
+ if value is None:
+ return None
+ try:
+ return json.dumps(value, sort_keys=True, default=str)
+ except (TypeError, ValueError, RecursionError):
+ return None
+
+
+def is_placeholder(value: Any) -> bool:
+ return isinstance(value, str) and value.strip() in MESSAGE_PLACEHOLDERS
+
+
+def text_part(content: Any) -> Part:
+ return {"type": TEXT, "content": content}
+
+
+def parse_parts(value: Any) -> list[Part] | None:
+ """A parts list (``gen_ai.system_instructions``), a JSON string of one, or plain text."""
+ data = parse_json_value(value)
+ if data is None and isinstance(value, str):
+ return None if is_placeholder(value) else [text_part(value)]
+ if isinstance(data, str):
+ return None if is_placeholder(data) else [text_part(data)]
+ if isinstance(data, Mapping):
+ data = [data]
+ if not isinstance(data, list):
+ return None
+ parts = [dict(p) for p in data if isinstance(p, Mapping) and isinstance(p.get("type"), str)]
+ return parts or None
+
+
+def normalize_message(raw: Any) -> Message | None:
+ if not isinstance(raw, Mapping):
+ return None
+ role = raw.get("role")
+ role = role if isinstance(role, str) and role else "user"
+ parts = raw.get("parts")
+ if not isinstance(parts, list):
+ parts = content_to_parts(raw.get("content")) if "content" in raw else []
+ message: Message = {k: v for k, v in raw.items() if k not in ("role", "parts", "content")}
+ message["role"] = role
+ message["parts"] = [dict(p) for p in parts if isinstance(p, Mapping)]
+ return message
+
+
+def parse_messages(value: Any) -> list[Message] | None:
+ """A message list, a JSON string of one, or a single message. ``None`` when absent or empty."""
+ if is_placeholder(value):
+ return None
+ data = value if isinstance(value, (list, tuple, Mapping)) else parse_json_value(value)
+ if isinstance(data, Mapping):
+ data = [data]
+ if not isinstance(data, (list, tuple)):
+ return None
+ out = [m for m in (normalize_message(item) for item in data) if m is not None]
+ return out if any(has_content([m]) for m in out) else None
+
+
+def _parts(messages: Iterable[Message] | None, kind: str) -> list[Part]:
+ return [p for m in messages or () for p in m.get("parts", ()) if p.get("type") == kind]
+
+
+def text_of(messages: Iterable[Message] | None) -> str | None:
+ """Joined content of the text parts. Non string content is JSON encoded, placeholders skipped."""
+ chunks = []
+ for part in _parts(messages, TEXT):
+ content = part.get("content")
+ if is_placeholder(content):
+ continue
+ text = _as_text(content)
+ if text:
+ chunks.append(text)
+ joined = "".join(chunks)
+ return joined or None
+
+
+def has_text(messages: Iterable[Message] | None) -> bool:
+ return text_of(messages) is not None
+
+
+def has_content(messages: Iterable[Message] | None) -> bool:
+ for message in messages or ():
+ for part in message.get("parts", ()):
+ kind = part.get("type")
+ if kind == TEXT:
+ if not is_placeholder(part.get("content")) and part.get("content") not in (None, ""):
+ return True
+ elif kind:
+ return True
+ return False
+
+
+def tool_calls_of(messages: Iterable[Message] | None) -> list[dict[str, Any]]:
+ """Client tool calls. ``server_tool_call`` parts run at the provider and are not included."""
+ out = []
+ for part in _parts(messages, TOOL_CALL):
+ name = part.get("name")
+ if not isinstance(name, str) or not name:
+ continue
+ args = part.get("arguments")
+ out.append(
+ {
+ "id": part.get("id") or None,
+ "name": name,
+ "arguments": parse_json_value(args) if isinstance(args, str) else args,
+ }
+ )
+ return out
+
+
+def tool_responses_of(messages: Iterable[Message] | None) -> list[dict[str, Any]]:
+ out = []
+ for part in _parts(messages, TOOL_CALL_RESPONSE):
+ response = part.get("response")
+ if isinstance(response, str):
+ parsed = parse_json_value(response)
+ response = response if parsed is None else parsed
+ out.append({"id": part.get("id") or None, "name": part.get("name"), "response": response})
+ return out
+
+
+def ends_with_tool_response(messages: Iterable[Message] | None) -> bool:
+ """True when the last message returns tool results: role ``tool``, or only ``tool_call_response`` parts."""
+ items = list(messages or ())
+ if not items:
+ return False
+ last = items[-1]
+ if last.get("role") == "tool":
+ return True
+ parts = last.get("parts") or []
+ return bool(parts) and all(isinstance(p, dict) and p.get("type") == TOOL_CALL_RESPONSE for p in parts)
+
+
+def user_turn_messages(messages: Iterable[Message] | None) -> list[Message]:
+ """The trailing run of user messages that carry text (tool response messages do not count)."""
+ out: list[Message] = []
+ for message in reversed(list(messages or ())):
+ if message.get("role") == "user" and has_text([message]):
+ out.append(message)
+ elif out:
+ break
+ return list(reversed(out))
+
+
+# ---------------------------------------------------------------- legacy converters
+
+
+def content_to_parts(content: Any) -> list[Part]:
+ """OpenAI style ``content``: a string, a list of typed items, or Google Content."""
+ if content is None or is_placeholder(content):
+ return []
+ if isinstance(content, str):
+ return [text_part(content)]
+ if isinstance(content, Mapping):
+ if isinstance(content.get("parts"), list):
+ return google_parts(content["parts"])
+ return [text_part(_as_text(content))]
+ if isinstance(content, list):
+ parts: list[Part] = []
+ for item in content:
+ if isinstance(item, str):
+ parts.append(text_part(item))
+ elif isinstance(item, Mapping):
+ kind = item.get("type")
+ if kind == TEXT and "content" in item:
+ parts.append(dict(item))
+ elif kind == TEXT or "text" in item:
+ parts.append(text_part(item.get("text")))
+ elif isinstance(kind, str):
+ parts.append(dict(item))
+ return parts
+ return [text_part(_as_text(content))]
+
+
+def openai_tool_calls_to_parts(tool_calls: Any) -> list[Part]:
+ parts: list[Part] = []
+ for call in tool_calls if isinstance(tool_calls, list) else []:
+ if not isinstance(call, Mapping):
+ continue
+ fn = call.get("function") if isinstance(call.get("function"), Mapping) else call
+ name = fn.get("name")
+ if not isinstance(name, str):
+ continue
+ args = fn.get("arguments")
+ parsed = parse_json_value(args) if isinstance(args, str) else args
+ parts.append(
+ {"type": TOOL_CALL, "id": call.get("id"), "name": name, "arguments": args if parsed is None else parsed}
+ )
+ return parts
+
+
+def google_parts(parts: Iterable[Any]) -> list[Part]:
+ """Google ``Content.parts`` to semconv parts. Inline data keeps only its mime type; URIs are never fetched."""
+ out: list[Part] = []
+ for part in parts:
+ if not isinstance(part, Mapping):
+ continue
+ if part.get("text") is not None:
+ kind = REASONING if part.get("thought") else TEXT
+ out.append({"type": kind, "content": part["text"]})
+ elif isinstance(part.get("function_call"), Mapping):
+ fc = part["function_call"]
+ out.append({"type": TOOL_CALL, "id": fc.get("id"), "name": fc.get("name"), "arguments": fc.get("args")})
+ elif isinstance(part.get("function_response"), Mapping):
+ fr = part["function_response"]
+ out.append(
+ {"type": TOOL_CALL_RESPONSE, "id": fr.get("id"), "name": fr.get("name"), "response": fr.get("response")}
+ )
+ elif isinstance(part.get("inline_data"), Mapping):
+ out.append({"type": "blob", "mime_type": part["inline_data"].get("mime_type")})
+ elif isinstance(part.get("file_data"), Mapping):
+ fd = part["file_data"]
+ out.append({"type": "uri", "uri": fd.get("file_uri"), "mime_type": fd.get("mime_type")})
+ else:
+ known = {k: v for k, v in part.items() if v is not None}
+ if known:
+ kind = next(iter(known))
+ out.append({"type": kind, kind: known[kind]})
+ return out
+
+
+def google_content_to_message(content: Any, default_role: str = "user") -> Message | None:
+ if not isinstance(content, Mapping):
+ return None
+ parts = google_parts(content.get("parts") or [])
+ role = content.get("role") if isinstance(content.get("role"), str) else default_role
+ if role == "model":
+ role = "assistant"
+ if parts and all(p["type"] == TOOL_CALL_RESPONSE for p in parts):
+ role = "tool"
+ return {"role": role, "parts": parts}
diff --git a/src/agentevals/genai/model.py b/src/agentevals/genai/model.py
new file mode 100644
index 00000000..5e6dc565
--- /dev/null
+++ b/src/agentevals/genai/model.py
@@ -0,0 +1,117 @@
+"""Canonical conversation model extracted from GenAI telemetry.
+
+Every turn, logical LLM call and tool call is keyed by the span it came from (``SpanRef``),
+so results can be attached back to the exact telemetry they judged.
+"""
+
+from __future__ import annotations
+
+from typing import Any, Literal
+
+from pydantic import BaseModel, ConfigDict, Field
+
+from ..otel.model import SpanRef
+
+Status = Literal["unset", "ok", "error"]
+AnchorKind = Literal["agent", "workflow", "root"]
+
+
+class Usage(BaseModel):
+ input_tokens: int = 0
+ output_tokens: int = 0
+ cache_read_input_tokens: int = 0
+ cache_write_input_tokens: int = 0
+ reasoning_output_tokens: int = 0
+
+ def __add__(self, other: Usage) -> Usage:
+ return Usage(**{k: getattr(self, k) + getattr(other, k) for k in Usage.model_fields})
+
+
+class LlmCall(BaseModel):
+ """One logical model call: a leaf inference span, collapsed with its single-leaf wrappers."""
+
+ model_config = ConfigDict(arbitrary_types_allowed=True)
+
+ ref: SpanRef
+ wrapper_ref: SpanRef | None = None
+ agent_name: str | None = None
+ operation: str
+ provider: str | None = None
+ request_model: str | None = None
+ response_model: str | None = None
+ response_id: str | None = None
+ usage: Usage | None = None
+ finish_reasons: list[str] = Field(default_factory=list)
+ system_instructions: list[dict[str, Any]] = Field(default_factory=list)
+ input_messages: list[dict[str, Any]] = Field(default_factory=list)
+ output_messages: list[dict[str, Any]] = Field(default_factory=list)
+ tool_definitions: list[dict[str, Any]] = Field(default_factory=list)
+ status: Status = "unset"
+ error_type: str | None = None
+ delegated: bool = False
+ start_ns: int = 0
+ end_ns: int = 0
+
+
+class ToolCall(BaseModel):
+ """One logical tool call. ``ref`` is its outermost tool span; ``inner_refs`` are the tool spans
+ nested in it for the same call (MCP client and server spans, say)."""
+
+ model_config = ConfigDict(arbitrary_types_allowed=True)
+
+ ref: SpanRef | None = None
+ inner_refs: list[SpanRef] = Field(default_factory=list)
+ agent_name: str | None = None
+ name: str
+ call_id: str | None = None
+ arguments: Any = None
+ result: Any = None
+ is_error: bool = False
+ error_type: str | None = None
+ start_ns: int | None = None
+
+
+class ExternalEvaluation(BaseModel):
+ """A ``gen_ai.evaluation.result`` produced by someone else and found in the telemetry."""
+
+ model_config = ConfigDict(arbitrary_types_allowed=True)
+
+ ref: SpanRef
+ name: str
+ score_value: float | None = None
+ score_label: str | None = None
+ explanation: str | None = None
+ source_service: str | None = None
+
+
+class Turn(BaseModel):
+ model_config = ConfigDict(arbitrary_types_allowed=True)
+
+ ref: SpanRef
+ anchor_kind: AnchorKind = "agent"
+ index: int = 0
+ label: str | None = None
+ agent_name: str | None = None
+ agents: list[str] = Field(default_factory=list)
+ user_input: list[dict[str, Any]] = Field(default_factory=list)
+ final_output: list[dict[str, Any]] = Field(default_factory=list)
+ intermediate_outputs: list[dict[str, Any]] = Field(default_factory=list)
+ llm_calls: list[LlmCall] = Field(default_factory=list)
+ tool_calls: list[ToolCall] = Field(default_factory=list)
+ usage: Usage = Field(default_factory=Usage)
+ start_ns: int = 0
+ end_ns: int = 0
+ status: Status = "unset"
+ error_type: str | None = None
+ content_captured: bool = False
+ conversation_id: str | None = None
+ framework_ids: dict[str, str] = Field(default_factory=dict)
+ external_evaluations: list[ExternalEvaluation] = Field(default_factory=list)
+ warnings: list[str] = Field(default_factory=list)
+
+
+class Conversation(BaseModel):
+ key: str
+ conversation_id: str | None = None
+ trace_ids: list[str] = Field(default_factory=list)
+ turns: list[Turn] = Field(default_factory=list)
diff --git a/src/agentevals/genai/overlay.py b/src/agentevals/genai/overlay.py
new file mode 100644
index 00000000..79aa3681
--- /dev/null
+++ b/src/agentevals/genai/overlay.py
@@ -0,0 +1,407 @@
+"""Read only normalization overlay: one canonical view per span.
+
+The overlay never mutates telemetry. It starts from the span's own attributes and fills
+canonical keys that are missing, from these sources in order (first hit wins, and a message
+list is always taken whole from one source):
+
+1. the current semantic convention key on the span
+2. a deprecated alias on the span (:data:`semconv.DEPRECATED_ALIASES`)
+3. the ``gen_ai.client.inference.operation.details`` event: span event first, then a log
+ record on the same span
+4. deprecated per message events (``gen_ai.user.message``, ``gen_ai.choice``, ...): span
+ events first, then log records on the same span
+5. Google ADK legacy attributes (``gcp.vertex.agent.*``), only on ADK spans
+6. legacy indexed attributes (``gen_ai.prompt.N.*`` / ``gen_ai.completion.N.*``), see
+ :func:`_legacy_indexed`
+
+The long tail of other dialects is normalized in the Collector (``gen_ai_normalizer``,
+``transform``), not here.
+"""
+
+from __future__ import annotations
+
+from collections.abc import Mapping, Sequence
+from dataclasses import dataclass, field
+from typing import Any
+
+from ..otel.model import LogRecord, Span, SpanEvent, attr_str, parse_json_value
+from . import semconv as sc
+from .messages import (
+ Message,
+ content_to_parts,
+ google_content_to_message,
+ google_parts,
+ openai_tool_calls_to_parts,
+ parse_messages,
+ parse_parts,
+ text_part,
+)
+
+ADK_SCOPE = "gcp.vertex.agent"
+ADK_PREFIX = "gcp.vertex.agent."
+ADK_LLM_REQUEST = "gcp.vertex.agent.llm_request"
+ADK_LLM_RESPONSE = "gcp.vertex.agent.llm_response"
+ADK_TOOL_ARGS = "gcp.vertex.agent.tool_call_args"
+ADK_TOOL_RESPONSE = "gcp.vertex.agent.tool_response"
+ADK_INVOCATION_ID = "gcp.vertex.agent.invocation_id"
+ADK_SESSION_ID = "gcp.vertex.agent.session_id"
+ADK_MERGED_TOOL_NAME = "(merged tools)"
+ADK_MERGED_SPAN_NAME = "execute_tool (merged)"
+
+MESSAGE_KEYS = (sc.INPUT_MESSAGES, sc.OUTPUT_MESSAGES, sc.SYSTEM_INSTRUCTIONS, sc.TOOL_DEFINITIONS)
+DETAILS_SCALAR_KEYS = (
+ sc.REQUEST_MODEL,
+ sc.RESPONSE_MODEL,
+ sc.RESPONSE_ID,
+ sc.RESPONSE_FINISH_REASONS,
+ sc.PROVIDER_NAME,
+ sc.USAGE_INPUT_TOKENS,
+ sc.USAGE_OUTPUT_TOKENS,
+ sc.USAGE_CACHE_READ_INPUT_TOKENS,
+ sc.USAGE_CACHE_WRITE_INPUT_TOKENS,
+ sc.USAGE_REASONING_OUTPUT_TOKENS,
+)
+
+
+@dataclass(frozen=True, slots=True)
+class SpanView:
+ """Canonical attributes of one span. Message keys hold parsed lists (or ``None``)."""
+
+ span: Span
+ attrs: Mapping[str, Any]
+ operation: str | None
+ ignored: bool
+ is_adk: bool
+ sources: Mapping[str, str] = field(default_factory=dict)
+ framework_ids: Mapping[str, str] = field(default_factory=dict)
+ exception_event: bool = False
+
+ def messages(self, key: str) -> list[Message] | None:
+ value = self.attrs.get(key)
+ return value if isinstance(value, list) and value else None
+
+
+def _is_adk(span: Span) -> bool:
+ return span.scope.name == ADK_SCOPE or any(k.startswith(ADK_PREFIX) for k in span.attributes)
+
+
+def _parse_message_key(key: str, value: Any) -> list | None:
+ if value is None:
+ return None
+ if key == sc.SYSTEM_INSTRUCTIONS:
+ return parse_parts(value)
+ if key == sc.TOOL_DEFINITIONS:
+ data = parse_json_value(value)
+ data = [data] if isinstance(data, Mapping) else data
+ defs = [dict(d) for d in data if isinstance(d, Mapping)] if isinstance(data, list) else []
+ return defs or None
+ return parse_messages(value)
+
+
+class _Filler:
+ def __init__(self, raw: Mapping[str, Any]):
+ self.attrs: dict[str, Any] = dict(raw)
+ self.sources: dict[str, str] = {}
+ for key in MESSAGE_KEYS:
+ parsed = _parse_message_key(key, raw.get(key))
+ if parsed is None:
+ self.attrs.pop(key, None)
+ else:
+ self.attrs[key] = parsed
+ self.sources[key] = "span"
+
+ def missing(self, key: str) -> bool:
+ return self.attrs.get(key) in (None, [], "")
+
+ def fill(self, key: str, value: Any, source: str) -> None:
+ if value is None or value == [] or not self.missing(key):
+ return
+ self.attrs[key] = value
+ self.sources[key] = source
+
+
+def _event_attrs(span: Span, logs: Sequence[LogRecord], name: str) -> list[tuple[str, Mapping[str, Any]]]:
+ found: list[tuple[str, Mapping[str, Any]]] = [("span_event", e.attributes) for e in span.events if e.name == name]
+ found += [("log", r.attributes) for r in logs if r.event_name == name]
+ return found
+
+
+def _apply_details(f: _Filler, span: Span, logs: Sequence[LogRecord]) -> None:
+ for where, attrs in _event_attrs(span, logs, sc.EVENT_INFERENCE_DETAILS):
+ for key in MESSAGE_KEYS:
+ f.fill(key, _parse_message_key(key, attrs.get(key)), f"details_{where}")
+ for key in DETAILS_SCALAR_KEYS:
+ f.fill(key, attrs.get(key), f"details_{where}")
+
+
+def _body(value: Any) -> Any:
+ if isinstance(value, str):
+ parsed = parse_json_value(value)
+ return parsed if isinstance(parsed, Mapping) else {"content": value}
+ return value if isinstance(value, Mapping) else {}
+
+
+def _legacy_event_messages(span: Span, logs: Sequence[LogRecord]) -> tuple[list, list, list]:
+ """Deprecated message events: span events first, then logs on this span, each in time order."""
+ events: list[tuple[str, Any]] = []
+ for ev in span.events:
+ if ev.name in sc.LEGACY_MESSAGE_EVENTS:
+ events.append((ev.name, dict(ev.attributes)))
+ if not events:
+ ordered = sorted(
+ (r for r in logs if r.event_name in sc.LEGACY_MESSAGE_EVENTS),
+ key=lambda r: r.time_unix_nano or r.observed_time_unix_nano or 0,
+ )
+ events = [(r.event_name, r.body) for r in ordered]
+
+ system: list = []
+ inputs: list[Message] = []
+ outputs: list[Message] = []
+ for name, raw in events:
+ body = _body(raw)
+ content = body.get("content")
+ if name == sc.EVENT_SYSTEM_MESSAGE:
+ system.extend(content_to_parts(content))
+ elif name == sc.EVENT_USER_MESSAGE:
+ message = (
+ google_content_to_message(content) if isinstance(content, Mapping) and "parts" in content else None
+ )
+ inputs.append(message or {"role": "user", "parts": content_to_parts(content)})
+ elif name == sc.EVENT_ASSISTANT_MESSAGE:
+ parts = content_to_parts(content) + openai_tool_calls_to_parts(body.get("tool_calls"))
+ inputs.append({"role": "assistant", "parts": parts})
+ elif name == sc.EVENT_TOOL_MESSAGE:
+ parsed = parse_json_value(content) if isinstance(content, str) else content
+ response = content if parsed is None else parsed
+ inputs.append(
+ {"role": "tool", "parts": [{"type": "tool_call_response", "id": body.get("id"), "response": response}]}
+ )
+ elif name == sc.EVENT_CHOICE:
+ message = body.get("message") if isinstance(body.get("message"), Mapping) else None
+ if message is not None:
+ parts = content_to_parts(message.get("content")) + openai_tool_calls_to_parts(message.get("tool_calls"))
+ elif isinstance(content, Mapping) and "parts" in content:
+ parts = google_parts(content["parts"])
+ else:
+ parts = content_to_parts(content)
+ out: Message = {"role": "assistant", "parts": parts}
+ if body.get("finish_reason") is not None:
+ out["finish_reason"] = body["finish_reason"]
+ outputs.append(out)
+ return [p for p in system if p], [m for m in inputs if m["parts"]], [m for m in outputs if m["parts"]]
+
+
+def _apply_legacy_events(f: _Filler, span: Span, logs: Sequence[LogRecord]) -> None:
+ system, inputs, outputs = _legacy_event_messages(span, logs)
+ f.fill(sc.SYSTEM_INSTRUCTIONS, parse_parts(system) if system else None, "legacy_events")
+ f.fill(sc.INPUT_MESSAGES, parse_messages(inputs) if inputs else None, "legacy_events")
+ f.fill(sc.OUTPUT_MESSAGES, parse_messages(outputs) if outputs else None, "legacy_events")
+ reasons = [m["finish_reason"] for m in outputs if isinstance(m.get("finish_reason"), str)]
+ f.fill(sc.RESPONSE_FINISH_REASONS, [r.lower() for r in reasons] or None, "legacy_events")
+
+
+def _apply_adk(f: _Filler, raw: Mapping[str, Any]) -> None:
+ request = parse_json_value(raw.get(ADK_LLM_REQUEST))
+ if isinstance(request, Mapping):
+ contents = request.get("contents")
+ if isinstance(contents, list):
+ messages = [m for m in (google_content_to_message(c) for c in contents) if m and m["parts"]]
+ f.fill(sc.INPUT_MESSAGES, parse_messages(messages) if messages else None, "adk")
+ config = request.get("config") if isinstance(request.get("config"), Mapping) else {}
+ instruction = config.get("system_instruction")
+ if isinstance(instruction, Mapping):
+ instruction_parts = google_parts(instruction.get("parts") or [])
+ elif isinstance(instruction, str) and instruction:
+ instruction_parts = [text_part(instruction)]
+ else:
+ instruction_parts = []
+ f.fill(sc.SYSTEM_INSTRUCTIONS, instruction_parts or None, "adk")
+ tools = []
+ for entry in config.get("tools") or []:
+ for decl in (entry.get("function_declarations") or []) if isinstance(entry, Mapping) else []:
+ if isinstance(decl, Mapping) and decl.get("name"):
+ tools.append(
+ {
+ "type": "function",
+ "name": decl["name"],
+ "description": decl.get("description"),
+ "parameters": decl.get("parameters") or decl.get("parameters_json_schema"),
+ }
+ )
+ f.fill(sc.TOOL_DEFINITIONS, tools or None, "adk")
+ if isinstance(request.get("model"), str):
+ f.fill(sc.REQUEST_MODEL, request["model"], "adk")
+
+ response = parse_json_value(raw.get(ADK_LLM_RESPONSE))
+ if isinstance(response, Mapping):
+ message = google_content_to_message(response.get("content"), default_role="assistant")
+ if message and message["parts"]:
+ f.fill(sc.OUTPUT_MESSAGES, parse_messages([message]), "adk")
+ if isinstance(response.get("finish_reason"), str):
+ f.fill(sc.RESPONSE_FINISH_REASONS, [response["finish_reason"].lower()], "adk")
+ if isinstance(response.get("model_version"), str):
+ f.fill(sc.RESPONSE_MODEL, response["model_version"], "adk")
+ usage = response.get("usage_metadata") if isinstance(response.get("usage_metadata"), Mapping) else {}
+ for src, dst in (
+ ("prompt_token_count", sc.USAGE_INPUT_TOKENS),
+ ("candidates_token_count", sc.USAGE_OUTPUT_TOKENS),
+ ("cached_content_token_count", sc.USAGE_CACHE_READ_INPUT_TOKENS),
+ ("thoughts_token_count", sc.USAGE_REASONING_OUTPUT_TOKENS),
+ ):
+ if isinstance(usage.get(src), int):
+ f.fill(dst, usage[src], "adk")
+
+ args = raw.get(ADK_TOOL_ARGS)
+ if args is not None and args != "N/A":
+ parsed = parse_json_value(args)
+ f.fill(sc.TOOL_CALL_ARGUMENTS, args if parsed is None else parsed, "adk")
+ result = raw.get(ADK_TOOL_RESPONSE)
+ if result is not None:
+ parsed = parse_json_value(result)
+ value = result if parsed is None else parsed
+ if not _is_tool_placeholder(value):
+ f.fill(sc.TOOL_CALL_RESULT, value, "adk")
+
+
+def _is_tool_placeholder(value: Any) -> bool:
+ if isinstance(value, str):
+ return value in sc.TOOL_PLACEHOLDERS
+ if isinstance(value, Mapping) and set(value) == {"result"}:
+ return value["result"] in sc.TOOL_PLACEHOLDERS
+ return False
+
+
+def _legacy_indexed(f: _Filler, raw: Mapping[str, Any]) -> None:
+ """OpenLLMetry indexed messages: ``gen_ai.prompt.N.*`` and ``gen_ai.completion.N.*``.
+
+ Legacy shim, kept for producers on OpenLLMetry 0.52 (kagent Python agents as of kagent
+ v1.0.0-alpha8) and for traces already stored in that shape. Remove once no supported
+ kagent release emits it (kagent#2907, "Moving Python off OpenLLMetry") and the Collector
+ ``gen_ai_normalizer`` is the documented path for OpenLLMetry producers.
+ """
+ for prefix, key in (("gen_ai.prompt.", sc.INPUT_MESSAGES), ("gen_ai.completion.", sc.OUTPUT_MESSAGES)):
+ if not f.missing(key):
+ continue
+ by_index: dict[int, dict[str, Any]] = {}
+ for name, value in raw.items():
+ if not name.startswith(prefix):
+ continue
+ index, _, sub = name[len(prefix) :].partition(".")
+ if index.isdigit() and sub:
+ by_index.setdefault(int(index), {})[sub] = value
+ messages: list[Message] = []
+ for index in sorted(by_index):
+ entry = by_index[index]
+ role = entry.get("role") if isinstance(entry.get("role"), str) else "user"
+ content = entry.get("content")
+ if role == "tool":
+ parsed = parse_json_value(content) if isinstance(content, str) else content
+ parts = [
+ {
+ "type": "tool_call_response",
+ "id": entry.get("tool_call_id"),
+ "response": content if parsed is None else parsed,
+ }
+ ]
+ else:
+ parts = content_to_parts(content)
+ calls: dict[int, dict[str, Any]] = {}
+ for sub, value in entry.items():
+ head, _, rest = sub.partition(".")
+ if head == "tool_calls":
+ number, _, field_name = rest.partition(".")
+ if number.isdigit() and field_name:
+ calls.setdefault(int(number), {})[field_name] = value
+ for number in sorted(calls):
+ call = calls[number]
+ args = call.get("arguments")
+ parsed_args = parse_json_value(args) if isinstance(args, str) else args
+ if isinstance(call.get("name"), str):
+ parts.append(
+ {
+ "type": "tool_call",
+ "id": call.get("id"),
+ "name": call["name"],
+ "arguments": args if parsed_args is None else parsed_args,
+ }
+ )
+ message: Message = {"role": role, "parts": parts}
+ if isinstance(entry.get("finish_reason"), str):
+ message["finish_reason"] = entry["finish_reason"]
+ messages.append(message)
+ f.fill(key, parse_messages(messages) if messages else None, "legacy_indexed")
+
+
+def _operation(span: Span, is_adk: bool) -> str | None:
+ op = attr_str(span.attributes, sc.OPERATION_NAME)
+ if op:
+ return op
+ if is_adk:
+ if span.name == "call_llm":
+ return sc.OP_GENERATE_CONTENT
+ if span.name == "invocation":
+ return sc.OP_INVOKE_WORKFLOW
+ raw = span.attributes
+ if raw.get(sc.REQUEST_MODEL) and (raw.get("gen_ai.system") or raw.get(sc.PROVIDER_NAME)) and _records_a_call(raw):
+ return sc.OP_CHAT
+ return None
+
+
+_CALL_RECORD_PREFIXES = ("gen_ai.usage.", "gen_ai.prompt.", "gen_ai.completion.")
+
+
+def _records_a_call(raw: Mapping[str, Any]) -> bool:
+ """Usage or messages on the span itself. Model and provider alone are identity: some producers
+ copy their resource attributes onto every span, which would make each of them a model call."""
+ return any(k.startswith(_CALL_RECORD_PREFIXES) or k in (sc.INPUT_MESSAGES, sc.OUTPUT_MESSAGES) for k in raw)
+
+
+def overlay(span: Span, logs: Sequence[LogRecord] = ()) -> SpanView:
+ """Build the canonical view of ``span``. ``logs`` are the log records joined to it."""
+ raw = span.attributes
+ f = _Filler(raw)
+ is_adk = _is_adk(span)
+
+ for alias, key in sc.DEPRECATED_ALIASES.items():
+ if alias not in raw:
+ continue
+ value = raw[alias]
+ if alias == "gen_ai.system" and value in sc.FRAMEWORK_SYSTEM_VALUES:
+ continue
+ if key == sc.RESPONSE_FINISH_REASONS and isinstance(value, str):
+ value = [value]
+ f.fill(key, value, f"alias:{alias}")
+
+ _apply_details(f, span, logs)
+ _apply_legacy_events(f, span, logs)
+ if is_adk:
+ _apply_adk(f, raw)
+ _legacy_indexed(f, raw)
+
+ for key in (sc.TOOL_NAME, sc.TOOL_CALL_ID):
+ if f.attrs.get(key) in sc.TOOL_PLACEHOLDERS:
+ f.attrs.pop(key)
+
+ ignored = span.name == ADK_MERGED_SPAN_NAME or raw.get(sc.TOOL_NAME) == ADK_MERGED_TOOL_NAME
+ framework_ids = {}
+ for key, label in ((ADK_INVOCATION_ID, "adk.invocation_id"), (ADK_SESSION_ID, "adk.session_id")):
+ value = attr_str(raw, key)
+ if value:
+ framework_ids[label] = value
+ exception_event = any(e.name == sc.EVENT_OPERATION_EXCEPTION for e in span.events) or any(
+ r.event_name == sc.EVENT_OPERATION_EXCEPTION for r in logs
+ )
+ return SpanView(
+ span=span,
+ attrs=f.attrs,
+ operation=_operation(span, is_adk),
+ ignored=ignored,
+ is_adk=is_adk,
+ sources=f.sources,
+ framework_ids=framework_ids,
+ exception_event=exception_event,
+ )
+
+
+def span_events_named(span: Span, name: str) -> list[SpanEvent]:
+ return [e for e in span.events if e.name == name]
diff --git a/src/agentevals/genai/routing.py b/src/agentevals/genai/routing.py
new file mode 100644
index 00000000..f0421b6a
--- /dev/null
+++ b/src/agentevals/genai/routing.py
@@ -0,0 +1,62 @@
+"""The routing policy the live store uses for GenAI telemetry.
+
+The store (``otel.store``) knows nothing about GenAI. It asks this policy for a session key, whether
+a trace without a key is worth a session, which log records to keep, and which records are
+agentevals' own output coming back through a pipeline.
+"""
+
+from __future__ import annotations
+
+from collections.abc import Iterable, Mapping, Sequence
+from types import MappingProxyType
+from typing import Any
+
+from ..otel.identity import EMITTER_SCOPE
+from ..otel.model import LogRecord, Span
+from .extract import IGNORED, NON_GENAI, classify
+from .grouping import KeyKind, identity_key
+from .overlay import overlay
+from .semconv import EVENT_EVALUATION_RESULT
+
+SERVICE_INSTANCE_ID = "service.instance.id"
+
+
+class GenAIRoutingPolicy:
+ """Sessions keyed by ``agentevals.session_name``, ``gen_ai.conversation.id`` or ``session.id``.
+
+ Only ``agentevals.session_name`` sessions split into ``name-2`` on a rerun; conversation and
+ ``session.id`` keys always rejoin. ``key_strength`` follows the precedence of
+ :func:`~agentevals.genai.grouping.identity_key`: a session keyed by ``session.id`` moves to the
+ conversation once a span of its trace carries ``gen_ai.conversation.id``, which happens when a
+ subprocess (such as a coding agent harness) exports before the span that owns the turn.
+ ``emitter_instance_id`` is the ``service.instance.id`` this process emits evaluation results
+ with, when it emits them.
+ """
+
+ rerun_kinds: frozenset[str] = frozenset({"name"})
+ key_strength: Mapping[str, int] = MappingProxyType({"session_id": 1, "conversation": 2, "name": 3})
+
+ def __init__(self, emitter_instance_id: str | None = None):
+ self.emitter_instance_id = emitter_instance_id
+
+ def session_key(self, items: Iterable[tuple[Mapping[str, Any], Mapping[str, Any]]]) -> tuple[KeyKind, str] | None:
+ return identity_key(items)
+
+ def opens_session(self, spans: Sequence[Span]) -> bool:
+ return any(classify(overlay(s)) not in (NON_GENAI, IGNORED) for s in spans)
+
+ def log_drop_reason(self, log: LogRecord) -> str | None:
+ if not log.event_name or not log.event_name.startswith("gen_ai."):
+ return "not a gen_ai event"
+ return None
+
+ def is_own_record(self, log: LogRecord) -> bool:
+ """An evaluation result agentevals emitted. Only evaluation results qualify: a producer may
+ share this process's ``service.instance.id`` (one ``OTEL_RESOURCE_ATTRIBUTES`` for both),
+ and its own telemetry must still be kept."""
+ if log.event_name != EVENT_EVALUATION_RESULT:
+ return False
+ if log.scope.name == EMITTER_SCOPE:
+ return True
+ instance = log.resource.attributes.get(SERVICE_INSTANCE_ID)
+ return self.emitter_instance_id is not None and instance == self.emitter_instance_id
diff --git a/src/agentevals/genai/semconv.py b/src/agentevals/genai/semconv.py
new file mode 100644
index 00000000..259761f7
--- /dev/null
+++ b/src/agentevals/genai/semconv.py
@@ -0,0 +1,105 @@
+"""GenAI semantic convention keys read and written by agentevals.
+
+Pinned to open-telemetry/semantic-conventions-genai at 4f85037 (main, 2026-10-06; the
+repository has no releases yet and its manifest declares ``gen-ai-dev/1.42.0-dev``). Every key
+here is at stability *development*, so this module is revisited when GenAI conventions are
+released. Classification never relies on ``schema_url`` because producers stamp unrelated
+versions.
+"""
+
+from __future__ import annotations
+
+OPERATION_NAME = "gen_ai.operation.name"
+PROVIDER_NAME = "gen_ai.provider.name"
+CONVERSATION_ID = "gen_ai.conversation.id"
+AGENT_NAME = "gen_ai.agent.name"
+AGENT_ID = "gen_ai.agent.id"
+WORKFLOW_NAME = "gen_ai.workflow.name"
+
+REQUEST_MODEL = "gen_ai.request.model"
+RESPONSE_MODEL = "gen_ai.response.model"
+RESPONSE_ID = "gen_ai.response.id"
+RESPONSE_FINISH_REASONS = "gen_ai.response.finish_reasons"
+
+INPUT_MESSAGES = "gen_ai.input.messages"
+OUTPUT_MESSAGES = "gen_ai.output.messages"
+SYSTEM_INSTRUCTIONS = "gen_ai.system_instructions"
+TOOL_DEFINITIONS = "gen_ai.tool.definitions"
+
+USAGE_INPUT_TOKENS = "gen_ai.usage.input_tokens"
+USAGE_OUTPUT_TOKENS = "gen_ai.usage.output_tokens"
+USAGE_CACHE_READ_INPUT_TOKENS = "gen_ai.usage.cache_read.input_tokens"
+USAGE_CACHE_WRITE_INPUT_TOKENS = "gen_ai.usage.cache_write.input_tokens"
+USAGE_REASONING_OUTPUT_TOKENS = "gen_ai.usage.reasoning.output_tokens"
+
+TOOL_NAME = "gen_ai.tool.name"
+TOOL_TYPE = "gen_ai.tool.type"
+TOOL_CALL_ID = "gen_ai.tool.call.id"
+TOOL_CALL_ARGUMENTS = "gen_ai.tool.call.arguments"
+TOOL_CALL_RESULT = "gen_ai.tool.call.result"
+
+EVALUATION_NAME = "gen_ai.evaluation.name"
+EVALUATION_SCORE_VALUE = "gen_ai.evaluation.score.value"
+EVALUATION_SCORE_LABEL = "gen_ai.evaluation.score.label"
+EVALUATION_EXPLANATION = "gen_ai.evaluation.explanation"
+
+ERROR_TYPE = "error.type"
+ERROR_TYPE_OTHER = "_OTHER"
+SESSION_ID = "session.id"
+SERVICE_NAME = "service.name"
+
+OP_CHAT = "chat"
+OP_GENERATE_CONTENT = "generate_content"
+OP_TEXT_COMPLETION = "text_completion"
+OP_INVOKE_AGENT = "invoke_agent"
+OP_INVOKE_WORKFLOW = "invoke_workflow"
+OP_EXECUTE_TOOL = "execute_tool"
+
+INFERENCE_OPERATIONS = frozenset({OP_CHAT, OP_GENERATE_CONTENT, OP_TEXT_COMPLETION})
+AGENTIC_OPERATIONS = frozenset({OP_INVOKE_AGENT, OP_INVOKE_WORKFLOW})
+OTHER_GENAI_OPERATIONS = frozenset(
+ {
+ "embeddings",
+ "retrieval",
+ "fetch_response",
+ "create_agent",
+ "plan",
+ "search_memory",
+ "create_memory",
+ "update_memory",
+ "upsert_memory",
+ "delete_memory",
+ "create_memory_store",
+ "delete_memory_store",
+ }
+)
+
+EVENT_INFERENCE_DETAILS = "gen_ai.client.inference.operation.details"
+EVENT_EVALUATION_RESULT = "gen_ai.evaluation.result"
+EVENT_OPERATION_EXCEPTION = "gen_ai.client.operation.exception"
+
+EVENT_SYSTEM_MESSAGE = "gen_ai.system.message"
+EVENT_USER_MESSAGE = "gen_ai.user.message"
+EVENT_ASSISTANT_MESSAGE = "gen_ai.assistant.message"
+EVENT_TOOL_MESSAGE = "gen_ai.tool.message"
+EVENT_CHOICE = "gen_ai.choice"
+LEGACY_MESSAGE_EVENTS = frozenset(
+ {EVENT_SYSTEM_MESSAGE, EVENT_USER_MESSAGE, EVENT_ASSISTANT_MESSAGE, EVENT_TOOL_MESSAGE, EVENT_CHOICE}
+)
+
+# Deprecated attribute -> current key. Values are copied as is unless the overlay applies a
+# shape rule (finish_reason is a scalar wrapped in a list).
+DEPRECATED_ALIASES: dict[str, str] = {
+ "gen_ai.system": PROVIDER_NAME,
+ "gen_ai.usage.prompt_tokens": USAGE_INPUT_TOKENS,
+ "gen_ai.usage.completion_tokens": USAGE_OUTPUT_TOKENS,
+ "gen_ai.usage.cache_creation.input_tokens": USAGE_CACHE_WRITE_INPUT_TOKENS,
+ "gen_ai.response.finish_reason": RESPONSE_FINISH_REASONS,
+}
+
+# gen_ai.system values that name a framework rather than a model provider.
+FRAMEWORK_SYSTEM_VALUES = frozenset({"gcp.vertex.agent"})
+
+# Placeholders producers write when content is not captured or not known.
+MESSAGE_PLACEHOLDERS = frozenset({"", "", ""})
+TOOL_PLACEHOLDERS = frozenset({""})
diff --git a/src/agentevals/genai_converter.py b/src/agentevals/genai_converter.py
deleted file mode 100644
index b6355192..00000000
--- a/src/agentevals/genai_converter.py
+++ /dev/null
@@ -1,477 +0,0 @@
-"""Convert trace spans using GenAI semantic conventions into ADK Invocation objects.
-
-Supports traces from frameworks using OpenTelemetry GenAI semantic conventions:
-- LangChain (via LANGSMITH_OTEL_ENABLED)
-- Any framework using standard gen_ai.* attributes
-"""
-
-from __future__ import annotations
-
-import logging
-from dataclasses import dataclass, field
-
-from google.adk.evaluation.eval_case import IntermediateData, Invocation
-from google.genai import types as genai_types
-
-from .converter import ConversionResult
-from .extraction import (
- GenAIExtractor,
- extract_agent_response_from_attrs,
- extract_tool_call_from_span,
- extract_tool_result_from_span,
- extract_user_text_from_attrs,
- is_invocation_span,
- is_llm_span,
-)
-from .loader.base import Span, Trace
-from .trace_attrs import (
- OTEL_GENAI_INPUT_MESSAGES,
- OTEL_GENAI_OUTPUT_MESSAGES,
-)
-from .utils.genai_messages import (
- ASSISTANT_ROLES,
- USER_ROLES,
- extract_text_from_message,
- extract_tool_calls_from_message,
- parse_json_attr,
-)
-
-logger = logging.getLogger(__name__)
-
-
-@dataclass
-class _ToolCall:
- name: str
- args: dict
- id: str | None = None
-
-
-@dataclass
-class _ToolResponse:
- name: str
- response: dict
- id: str | None = None
-
-
-@dataclass
-class _ConversationTurn:
- invocation_id: str
- user_text: str
- assistant_text: str
- tool_calls: list[_ToolCall] = field(default_factory=list)
- tool_responses: list[_ToolResponse] = field(default_factory=list)
- start_time: float = 0.0
-
-
-def convert_genai_trace(trace: Trace) -> ConversionResult:
- result = ConversionResult(trace_id=trace.trace_id)
-
- logger.debug(f"Converting GenAI trace {trace.trace_id} ({len(trace.all_spans)} spans)")
-
- llm_root_spans = [s for s in trace.root_spans if is_llm_span(s)]
-
- if llm_root_spans:
- has_messages = any(
- s.get_tag(OTEL_GENAI_INPUT_MESSAGES) or s.get_tag(OTEL_GENAI_OUTPUT_MESSAGES) for s in llm_root_spans
- )
- if not has_messages:
- msg = (
- f"Trace {trace.trace_id}: GenAI LLM spans found but missing message content. "
- "This usually means logs were not enriched into spans. "
- "Conversion may fail or produce incomplete results."
- )
- logger.warning(msg)
- result.warnings.append(msg)
-
- if len(llm_root_spans) > 1:
- if not any(is_invocation_span(s) for s in llm_root_spans):
- has_enriched = any(
- s.get_tag(OTEL_GENAI_INPUT_MESSAGES) and s.get_tag(OTEL_GENAI_OUTPUT_MESSAGES) for s in llm_root_spans
- )
-
- if has_enriched and _is_broadcast_enriched(llm_root_spans[0]):
- logger.debug(f"Multi-turn conversation: {len(llm_root_spans)} LLM spans")
- try:
- turns = _extract_multiturn_turns(llm_root_spans)
- for turn in turns:
- result.invocations.append(_turn_to_invocation(turn))
- except Exception as exc:
- msg = f"Trace {trace.trace_id}: failed to convert multi-turn conversation: {exc}"
- logger.warning(msg)
- result.warnings.append(msg)
- return result
-
- invocation_spans = _find_genai_invocation_spans(trace)
- logger.debug(f"Found {len(invocation_spans)} invocation spans")
-
- if not invocation_spans:
- result.warnings.append(f"Trace {trace.trace_id}: no GenAI invocation spans found")
- return result
-
- for inv_span in invocation_spans:
- try:
- turn = _extract_single_turn(inv_span)
- result.invocations.append(_turn_to_invocation(turn))
- except Exception as exc:
- msg = f"Failed to convert span {inv_span.span_id}: {exc}"
- logger.warning(msg)
- result.warnings.append(msg)
-
- result.invocations = _deduplicate_invocations(result.invocations)
- return result
-
-
-def _find_genai_invocation_spans(trace: Trace) -> list[Span]:
- candidates = []
-
- for span in trace.root_spans:
- if is_invocation_span(span):
- candidates.append(span)
-
- if not candidates:
- for span in trace.root_spans:
- if _has_llm_children(span):
- candidates.append(span)
-
- if not candidates and trace.root_spans:
- llm_spans = [s for s in trace.root_spans if is_llm_span(s)]
-
- if len(llm_spans) > 1:
- has_enriched_messages = any(
- s.get_tag(OTEL_GENAI_INPUT_MESSAGES) or s.get_tag(OTEL_GENAI_OUTPUT_MESSAGES) for s in llm_spans
- )
-
- if has_enriched_messages and _is_broadcast_enriched(llm_spans[0]):
- logger.debug(
- f"Found {len(llm_spans)} LLM spans with broadcast-enriched messages, treating as single multi-turn conversation"
- )
- return [llm_spans[0]]
-
- logger.debug("No clear invocation spans found, treating each root span as invocation")
- candidates = llm_spans if llm_spans else trace.root_spans
-
- if not candidates and trace.root_spans:
- logger.debug("Falling back to all root spans")
- candidates = list(trace.root_spans)
-
- candidates.sort(key=lambda s: s.start_time)
- return candidates
-
-
-def _extract_single_turn(inv_span: Span) -> _ConversationTurn:
- llm_spans = _find_llm_spans(inv_span)
-
- logger.debug(f"Converting invocation span: {inv_span.operation_name}")
- logger.debug(f"Found {len(llm_spans)} LLM spans")
-
- if not llm_spans:
- if is_llm_span(inv_span):
- llm_spans = [inv_span]
- else:
- raise ValueError(f"Invocation span {inv_span.span_id} has no LLM call spans")
-
- tool_spans = _find_tool_spans(inv_span)
- logger.debug(f"Found {len(tool_spans)} tool spans")
-
- user_text = _extract_user_text(llm_spans[0])
- assistant_text = _extract_assistant_text(llm_spans[-1])
- tool_calls, tool_responses = _extract_tool_calls(tool_spans, llm_spans)
-
- return _ConversationTurn(
- invocation_id=f"genai-{inv_span.span_id}",
- user_text=user_text,
- assistant_text=assistant_text,
- tool_calls=tool_calls,
- tool_responses=tool_responses,
- start_time=float(inv_span.start_time),
- )
-
-
-def _extract_multiturn_turns(llm_spans: list[Span]) -> list[_ConversationTurn]:
- messages_raw = llm_spans[0].get_tag(OTEL_GENAI_INPUT_MESSAGES, "[]")
- all_input_messages = parse_json_attr(messages_raw, "gen_ai.input.messages")
-
- output_messages_raw = llm_spans[0].get_tag(OTEL_GENAI_OUTPUT_MESSAGES, "[]")
- all_output_messages = parse_json_attr(output_messages_raw, "gen_ai.output.messages")
-
- if not isinstance(all_input_messages, list) or not isinstance(all_output_messages, list):
- logger.warning("Messages are not lists, falling back to single invocation")
- user_text = _extract_user_text(llm_spans[0])
- assistant_text = _extract_assistant_text(llm_spans[-1])
- return [
- _ConversationTurn(
- invocation_id=f"genai-{llm_spans[0].span_id}",
- user_text=user_text,
- assistant_text=assistant_text,
- start_time=float(llm_spans[0].start_time),
- )
- ]
-
- user_messages = [msg for msg in all_input_messages if msg.get("role") in USER_ROLES]
- assistant_messages = [msg for msg in all_output_messages if msg.get("role") in ASSISTANT_ROLES]
-
- logger.debug(f"Multi-turn: {len(user_messages)} user, {len(assistant_messages)} assistant messages")
- for i, msg in enumerate(assistant_messages):
- has_content = bool(msg.get("content"))
- has_tools = bool(msg.get("tool_calls"))
- logger.debug(f" Assistant msg {i}: has_content={has_content}, has_tools={has_tools}")
-
- turns = []
- assistant_idx = 0
-
- for user_idx, user_msg in enumerate(user_messages):
- user_text = extract_text_from_message(user_msg)
- if not user_text:
- continue
-
- tool_calls: list[_ToolCall] = []
- assistant_text = ""
-
- while assistant_idx < len(assistant_messages):
- assistant_msg = assistant_messages[assistant_idx]
-
- for tc in extract_tool_calls_from_message(assistant_msg):
- tool_calls.append(_ToolCall(name=tc["name"], args=tc["arguments"], id=tc["id"]))
-
- content = extract_text_from_message(assistant_msg)
- if content:
- assistant_text = content
- assistant_idx += 1
- break
-
- assistant_idx += 1
-
- turns.append(
- _ConversationTurn(
- invocation_id=f"genai-turn-{user_idx + 1}-{llm_spans[0].span_id[:8]}",
- user_text=user_text if isinstance(user_text, str) else "",
- assistant_text=assistant_text,
- tool_calls=tool_calls,
- start_time=float(llm_spans[0].start_time),
- )
- )
-
- return turns
-
-
-def _deduplicate_invocations(invocations: list[Invocation]) -> list[Invocation]:
- """Deduplicate invocations with the same user text, keeping the best one.
-
- The OpenAI instrumentor creates separate LLM calls for tool-use loops within
- a single conversation turn. Each call logs the full conversation history, so
- multiple spans produce invocations with the same user text. We keep the last
- one per unique user text — it has the final response (not the intermediate
- tool-call-only response).
- """
- if len(invocations) <= 1:
- return invocations
-
- def _user_text(inv: Invocation) -> str:
- if inv.user_content and inv.user_content.parts:
- return inv.user_content.parts[0].text or ""
- return ""
-
- seen: dict[str, int] = {}
- always_keep: set[int] = set()
- for i, inv in enumerate(invocations):
- text = _user_text(inv)
- if not text.strip():
- always_keep.add(i)
- else:
- seen[text] = i
-
- if len(seen) + len(always_keep) == len(invocations):
- return invocations
-
- keep = always_keep | set(seen.values())
- return [inv for i, inv in enumerate(invocations) if i in keep]
-
-
-def _turn_to_invocation(turn: _ConversationTurn) -> Invocation:
- user_content = genai_types.Content(
- role="user",
- parts=[genai_types.Part(text=turn.user_text)],
- )
- final_response = genai_types.Content(
- role="model",
- parts=[genai_types.Part(text=turn.assistant_text)],
- )
- tool_uses = [genai_types.FunctionCall(name=tc.name, args=tc.args, id=tc.id) for tc in turn.tool_calls]
- tool_responses = [
- genai_types.FunctionResponse(name=tr.name, response=tr.response, id=tr.id) for tr in turn.tool_responses
- ]
- return Invocation(
- invocation_id=turn.invocation_id,
- user_content=user_content,
- final_response=final_response,
- intermediate_data=IntermediateData(tool_uses=tool_uses, tool_responses=tool_responses),
- creation_timestamp=turn.start_time / 1_000_000.0,
- )
-
-
-def _extract_user_text(llm_span: Span) -> str:
- text = extract_user_text_from_attrs(llm_span.tags)
- if text:
- return text
- raise ValueError(
- f"LLM span {llm_span.span_id}: no user message found (checked gen_ai.input.messages and ADK llm_request)"
- )
-
-
-def _extract_assistant_text(llm_span: Span) -> str:
- text = extract_agent_response_from_attrs(llm_span.tags)
- if text:
- return text
- logger.warning(
- "LLM span %s: no assistant message with content in span attributes",
- llm_span.span_id,
- )
- return ""
-
-
-def _trim_cumulative_output(llm_span: Span, output_messages: list[dict]) -> list[dict]:
- """For cumulative-history traces, return only the current turn's output messages.
-
- The OpenAI instrumentor v2 stores the full conversation history in each span.
- Each span's output includes ALL previous turns' assistant responses. Given N
- user messages in input, the current turn is N. We skip past the first (N-1)
- assistant text responses in the output — everything after that belongs to the
- current turn.
- """
- input_raw = llm_span.get_tag(OTEL_GENAI_INPUT_MESSAGES)
- if not input_raw:
- return output_messages
-
- input_messages = parse_json_attr(input_raw, "gen_ai.input.messages")
- if not isinstance(input_messages, list):
- return output_messages
-
- user_count = sum(1 for m in input_messages if isinstance(m, dict) and m.get("role") in USER_ROLES)
- if user_count <= 1:
- return output_messages
-
- previous_turns = user_count - 1
- text_responses_seen = 0
-
- for i, msg in enumerate(output_messages):
- if not isinstance(msg, dict) or msg.get("role") not in ASSISTANT_ROLES:
- continue
- content = extract_text_from_message(msg)
- if content:
- text_responses_seen += 1
- if text_responses_seen >= previous_turns:
- trimmed = output_messages[i + 1 :]
- logger.debug(
- "Trimmed cumulative output: %d → %d messages (skipped %d previous turns)",
- len(output_messages),
- len(trimmed),
- previous_turns,
- )
- return trimmed
-
- return output_messages
-
-
-def _extract_tool_calls(
- tool_spans: list[Span],
- llm_spans: list[Span] | None = None,
-) -> tuple[list[_ToolCall], list[_ToolResponse]]:
- tool_calls_by_id: dict[str, _ToolCall] = {}
- tool_calls_no_id: list[_ToolCall] = []
- tool_responses: list[_ToolResponse] = []
-
- for tool_span in tool_spans:
- tool_call = extract_tool_call_from_span(tool_span)
- if tool_call is None:
- logger.warning(f"Tool span missing tool name: {tool_span.operation_name}")
- continue
-
- # The shared function returns span_id or "unknown" as fallback IDs.
- # For dedup against LLM-message tool calls, only real IDs are usable.
- tc_id = tool_call["id"]
- is_placeholder = tc_id in ("unknown", tool_span.span_id)
- dedup_id = None if is_placeholder else tc_id
-
- tc = _ToolCall(name=tool_call["name"], args=tool_call["args"], id=dedup_id)
- if dedup_id:
- tool_calls_by_id[dedup_id] = tc
- else:
- tool_calls_no_id.append(tc)
-
- tool_result = extract_tool_result_from_span(tool_span)
- if tool_result:
- logger.debug(f"Tool {tool_call['name']} result: {str(tool_result['response'])[:100]}")
- tool_responses.append(
- _ToolResponse(
- name=tool_call["name"],
- response=tool_result["response"],
- id=dedup_id,
- )
- )
-
- if llm_spans:
- for llm_span in llm_spans:
- messages_raw = llm_span.get_tag(OTEL_GENAI_OUTPUT_MESSAGES, "[]")
- messages = parse_json_attr(messages_raw, "gen_ai.output.messages")
-
- if not isinstance(messages, list):
- continue
-
- messages = _trim_cumulative_output(llm_span, messages)
-
- for msg in messages:
- if not isinstance(msg, dict):
- continue
- if msg.get("role") not in ASSISTANT_ROLES:
- continue
- for tc in extract_tool_calls_from_message(msg):
- tc_id = tc["id"]
- new_tc = _ToolCall(
- name=tc["name"],
- args=tc["arguments"],
- id=tc_id,
- )
- if tc_id and tc_id in tool_calls_by_id:
- # Prefer LLM message version if it has richer args
- existing = tool_calls_by_id[tc_id]
- if tc["arguments"] and not existing.args:
- tool_calls_by_id[tc_id] = new_tc
- elif tc_id:
- tool_calls_by_id[tc_id] = new_tc
- else:
- tool_calls_no_id.append(new_tc)
-
- tool_calls = list(tool_calls_by_id.values()) + tool_calls_no_id
- logger.debug(f"Extracted {len(tool_calls)} tool calls, {len(tool_responses)} responses")
- return tool_calls, tool_responses
-
-
-_genai_extractor = GenAIExtractor()
-
-
-def _is_broadcast_enriched(span: Span) -> bool:
- """Detect whether a span was enriched via broadcast (all messages in every span).
-
- Broadcast enrichment (WebSocket path) injects the full conversation history
- into every span, so the first span has multiple user messages.
- Per-span enrichment (OTLP path) gives each span only its own messages,
- so each span has at most 1 user message.
- """
- messages_raw = span.get_tag(OTEL_GENAI_INPUT_MESSAGES, "[]")
- messages = parse_json_attr(messages_raw, "gen_ai.input.messages")
- if not isinstance(messages, list):
- return False
- user_count = sum(1 for m in messages if isinstance(m, dict) and m.get("role") in USER_ROLES)
- return user_count > 1
-
-
-def _find_llm_spans(root: Span) -> list[Span]:
- return _genai_extractor.find_llm_spans_in(root)
-
-
-def _find_tool_spans(root: Span) -> list[Span]:
- return _genai_extractor.find_tool_spans_in(root)
-
-
-def _has_llm_children(span: Span) -> bool:
- return _genai_extractor._has_llm_children(span)
diff --git a/src/agentevals/loader/__init__.py b/src/agentevals/loader/__init__.py
index d9c4245c..ffc55e7c 100644
--- a/src/agentevals/loader/__init__.py
+++ b/src/agentevals/loader/__init__.py
@@ -6,24 +6,33 @@
dispatches to the right underlying loader.
"""
+from ..otel.model import Span, Trace
from .auto import (
JAEGER_JSON,
OTLP_JSON,
+ TelemetryFile,
+ TraceLoader,
detect_format,
get_loader_for_format,
+ load_telemetry,
load_traces,
+ load_traces_from_obj,
)
-from .base import TraceLoader
from .jaeger import JaegerJsonLoader
from .otlp import OtlpJsonLoader
__all__ = [
+ "TelemetryFile",
+ "load_telemetry",
"JAEGER_JSON",
"OTLP_JSON",
"JaegerJsonLoader",
"OtlpJsonLoader",
+ "Span",
+ "Trace",
"TraceLoader",
"detect_format",
"get_loader_for_format",
"load_traces",
+ "load_traces_from_obj",
]
diff --git a/src/agentevals/loader/auto.py b/src/agentevals/loader/auto.py
index c50f3df5..bcef3d12 100644
--- a/src/agentevals/loader/auto.py
+++ b/src/agentevals/loader/auto.py
@@ -1,108 +1,147 @@
-"""Format auto-detection and unified trace-loading entrypoint.
-
-The public surface of this module is intentionally tiny:
-
-- :func:`load_traces` — load traces from a file. Auto-detects the on-disk
- shape (Jaeger native JSON, OTLP JSON document, OTLP JSONL, Tempo v1
- ``batches``, Tempo v2 ``trace`` wrapper) and dispatches to the right
- underlying loader. Callers don't need to know what tracing system
- exported the file.
-- :func:`detect_format` — peek at a file and return its format name, or
- ``None`` if the shape isn't recognized. Useful for surfacing detection
- results to a user without committing to loading.
-
-The format-specific :class:`JaegerJsonLoader` and :class:`OtlpJsonLoader`
-classes remain for callers that already know which format they have
-(streaming OTLP receivers, in-memory dict ingest, tests).
+"""Format detection and the file loading entry points.
+
+* :func:`load_telemetry` reads a file into envelope traces (``agentevals.otel.model``) plus the
+ log records that belong to no trace in the file.
+* :func:`load_traces` returns just the traces.
+* :func:`detect_format` sniffs content, so a ``.jsonl`` file holding Collector exports, bare
+ spans or anything else is classified by what it contains.
"""
from __future__ import annotations
import json
import logging
+from collections import Counter
+from dataclasses import dataclass, field
+from typing import Protocol
-from .base import Trace, TraceLoader
-from .jaeger import JaegerJsonLoader
-from .otlp import OtlpJsonLoader
+from ..otel.decode import decode_bare_spans_json, decode_json_document, is_otlp_document
+from ..otel.model import LogRecord, Trace, build_traces
+from .jaeger import JaegerJsonLoader, decode_jaeger_document
+from .otlp import OtlpJsonLoader, decode_otlp_text
logger = logging.getLogger(__name__)
JAEGER_JSON = "jaeger-json"
OTLP_JSON = "otlp-json"
+
+class TraceLoader(Protocol):
+ def format_name(self) -> str: ...
+
+ def load(self, source: str) -> list[Trace]: ...
+
+
_LOADERS: dict[str, type[TraceLoader]] = {
JAEGER_JSON: JaegerJsonLoader,
OTLP_JSON: OtlpJsonLoader,
}
-def detect_format(path: str) -> str | None:
- """Return the format name for ``path`` (``"jaeger-json"`` or ``"otlp-json"``).
-
- Order:
- 1. The file must exist and be readable. Missing/unreadable files always
- return ``None`` regardless of extension.
- 2. ``.jsonl`` extension implies OTLP (one span per line).
- 3. Otherwise read and inspect top-level keys:
- - ``resourceSpans`` / ``batches`` / wrapped ``trace.{...}`` → OTLP
- - ``data`` → Jaeger
- Returns ``None`` when the file is missing, unreadable, not valid JSON,
- or the shape isn't recognized; callers that still want to attempt a
- load can fall back to a default.
- """
- try:
- with open(path, encoding="utf-8") as f:
- if path.lower().endswith(".jsonl"):
- return OTLP_JSON
- data = json.load(f)
- except (OSError, json.JSONDecodeError):
- return None
+@dataclass
+class TelemetryFile:
+ format: str
+ traces: list[Trace]
+ unattributed_logs: list[LogRecord] = field(default_factory=list)
+ warnings: Counter = field(default_factory=Counter)
- if not isinstance(data, dict):
- return None
- if "resourceSpans" in data or "batches" in data:
- return OTLP_JSON
+_UNPARSED = object()
+
- inner = data.get("trace")
- if isinstance(inner, dict) and ("resourceSpans" in inner or "batches" in inner):
- return OTLP_JSON
+def _looks_like_span(obj: object) -> bool:
+ return isinstance(obj, dict) and ("spanId" in obj or "traceId" in obj)
- if "data" in data:
- return JAEGER_JSON
- return None
+def _classify(content: str) -> tuple[str | None, object]:
+ """Return the format and the parsed document (``_UNPARSED`` for JSON lines)."""
+ text = content.strip()
+ if not text:
+ return None, _UNPARSED
+ try:
+ data = json.loads(text)
+ except (ValueError, RecursionError):
+ first = text.split("\n", 1)[0].strip()
+ try:
+ head = json.loads(first)
+ except (ValueError, RecursionError):
+ return None, _UNPARSED
+ ok = isinstance(head, dict) and (is_otlp_document(head) or _looks_like_span(head))
+ return (OTLP_JSON if ok else None), _UNPARSED
+ if isinstance(data, dict):
+ if is_otlp_document(data) or _looks_like_span(data):
+ return OTLP_JSON, data
+ if "data" in data:
+ return JAEGER_JSON, data
+ if isinstance(data, list) and data and all(_looks_like_span(i) for i in data):
+ return OTLP_JSON, data
+ return None, data
+
+
+def detect_format(path: str) -> str | None:
+ """Return ``"otlp-json"``, ``"jaeger-json"``, or ``None`` when unreadable or unrecognized."""
+ try:
+ with open(path, encoding="utf-8") as f:
+ content = f.read()
+ except (OSError, UnicodeDecodeError):
+ return None
+ return _classify(content)[0]
def get_loader_for_format(format_name: str) -> TraceLoader:
- """Return a loader instance for an explicit format name."""
if format_name not in _LOADERS:
raise ValueError(f"Unknown trace format {format_name!r}. Supported: {sorted(_LOADERS)}")
return _LOADERS[format_name]()
-def load_traces(path: str, *, format: str | None = None) -> list[Trace]:
- """Load traces from a file with auto-detection.
-
- Args:
- path: Path to a Jaeger or OTLP JSON file (any extension).
- format: Optional explicit format override. When omitted, detection
- runs on file contents and extension. Useful for non-standard
- exports where sniffing fails.
-
- Raises:
- ValueError: If ``format`` is unknown or detection fails on a file
- whose shape can't be matched and no default is sensible.
- """
- if format is not None:
- return get_loader_for_format(format).load(path)
-
- detected = detect_format(path)
- if detected is None:
+def load_telemetry(path: str, *, format: str | None = None) -> TelemetryFile:
+ """Read a trace file into envelopes. Raises ``ValueError`` when the content is not recognized."""
+ with open(path, encoding="utf-8") as f:
+ content = f.read()
+ detected, data = _classify(content)
+ fmt = format or detected
+ if fmt not in _LOADERS:
+ if format is not None:
+ raise ValueError(f"Unknown trace format {format!r}. Supported: {sorted(_LOADERS)}")
raise ValueError(
f"Could not detect trace format for {path!r}. "
'Expected Jaeger JSON ({"data": [...]}) or OTLP JSON '
'({"resourceSpans": [...]} / {"batches": [...]}). '
"Pass an explicit format= override if needed."
)
- return get_loader_for_format(detected).load(path)
+ if data is _UNPARSED:
+ if fmt == JAEGER_JSON:
+ raise ValueError(f"Invalid Jaeger JSON in {path!r}")
+ result = decode_otlp_text(content)
+ else:
+ result = _decode_obj(data, fmt)
+ traces, unattributed = build_traces(result.spans, result.logs)
+ if result.reasons:
+ logger.warning("Skipped items in %s: %s", path, result.error_message)
+ return TelemetryFile(format=fmt, traces=traces, unattributed_logs=unattributed, warnings=result.warnings)
+
+
+def _decode_obj(data: object, fmt: str):
+ if fmt == JAEGER_JSON:
+ return decode_jaeger_document(data)
+ if isinstance(data, dict) and is_otlp_document(data):
+ return decode_json_document(data, strict=False)
+ if isinstance(data, list) or _looks_like_span(data):
+ return decode_bare_spans_json(data if isinstance(data, list) else [data], strict=False)
+ raise ValueError("not an OTLP JSON document: expected resourceSpans, resourceLogs or batches")
+
+
+def load_traces_from_obj(data: object, *, format: str | None = None) -> list[Trace]:
+ """Traces from an already parsed JSON document (Jaeger or OTLP)."""
+ if format is not None and format not in _LOADERS:
+ raise ValueError(f"Unknown trace format {format!r}. Supported: {sorted(_LOADERS)}")
+ fmt = format or (
+ JAEGER_JSON if isinstance(data, dict) and "data" in data and not is_otlp_document(data) else OTLP_JSON
+ )
+ result = _decode_obj(data, fmt)
+ traces, _ = build_traces(result.spans, result.logs)
+ return traces
+
+
+def load_traces(path: str, *, format: str | None = None) -> list[Trace]:
+ return load_telemetry(path, format=format).traces
diff --git a/src/agentevals/loader/base.py b/src/agentevals/loader/base.py
deleted file mode 100644
index 29fa92df..00000000
--- a/src/agentevals/loader/base.py
+++ /dev/null
@@ -1,53 +0,0 @@
-"""Abstract base class for trace loaders."""
-
-from __future__ import annotations
-
-from abc import ABC, abstractmethod
-from dataclasses import dataclass, field
-from typing import Any
-
-
-@dataclass
-class Span:
- """Normalized representation of a trace span."""
-
- trace_id: str
- span_id: str
- parent_span_id: str | None
- operation_name: str
- start_time: int # microseconds
- duration: int # microseconds
- tags: dict[str, Any] = field(default_factory=dict)
- children: list[Span] = field(default_factory=list)
-
- def get_tag(self, key: str, default: Any = None) -> Any:
- return self.tags.get(key, default)
-
- @property
- def end_time(self) -> int:
- return self.start_time + self.duration
-
-
-@dataclass
-class Trace:
- trace_id: str
- root_spans: list[Span] = field(default_factory=list)
- all_spans: list[Span] = field(default_factory=list)
-
- def find_spans_by_operation(self, operation_prefix: str) -> list[Span]:
- return [s for s in self.all_spans if s.operation_name.startswith(operation_prefix)]
-
- def find_spans_by_tag(self, key: str, value: Any) -> list[Span]:
- return [s for s in self.all_spans if s.get_tag(key) == value]
-
-
-class TraceLoader(ABC):
- @abstractmethod
- def load(self, source: str) -> list[Trace]:
- """Load traces from a source (file path, URL, etc.)."""
- ...
-
- @abstractmethod
- def format_name(self) -> str:
- """Return the name of the trace format this loader handles."""
- ...
diff --git a/src/agentevals/loader/jaeger.py b/src/agentevals/loader/jaeger.py
index 14a27fdc..21c35533 100644
--- a/src/agentevals/loader/jaeger.py
+++ b/src/agentevals/loader/jaeger.py
@@ -1,112 +1,175 @@
-"""Jaeger JSON trace loader."""
+"""Jaeger JSON reader (legacy import format).
+
+Jaeger stores OTLP fields as span tags when it ingests OTLP: span kind, status, and the
+instrumentation scope. They are mapped back to envelope fields here, so the attributes hold
+only what the producer set. ``processes`` become resources (``service.name`` plus process
+tags) and span ``logs`` become span events.
+"""
from __future__ import annotations
+import base64
+import binascii
import json
import logging
+from types import MappingProxyType
from typing import Any
-from .base import Span, Trace, TraceLoader
+from ..otel.decode import SPAN_ID_BYTES, TRACE_ID_BYTES, DecodeResult, normalize_id
+from ..otel.model import (
+ EMPTY_ATTRS,
+ STATUS_ERROR,
+ STATUS_OK,
+ STATUS_UNSET,
+ Resource,
+ Scope,
+ Span,
+ SpanEvent,
+ SpanLink,
+ Trace,
+ build_traces,
+)
logger = logging.getLogger(__name__)
+_KINDS = {"internal": 1, "server": 2, "client": 3, "producer": 4, "consumer": 5}
+_STATUS = {"OK": STATUS_OK, "ERROR": STATUS_ERROR, "UNSET": STATUS_UNSET}
+_SCOPE_NAME_TAGS = ("otel.scope.name", "otel.library.name")
+_SCOPE_VERSION_TAGS = ("otel.scope.version", "otel.library.version")
+_FIELD_TAGS = frozenset(
+ {"span.kind", "otel.status_code", "otel.status_description", *_SCOPE_NAME_TAGS, *_SCOPE_VERSION_TAGS}
+)
+
+
+def _tag_value(tag: dict) -> Any:
+ value = tag.get("value")
+ kind = tag.get("type")
+ if kind == "binary" and isinstance(value, str):
+ try:
+ return base64.b64decode(value)
+ except (binascii.Error, ValueError):
+ return value
+ if kind == "int64" and isinstance(value, str):
+ try:
+ return int(value)
+ except ValueError:
+ return value
+ if kind == "float64" and isinstance(value, str):
+ try:
+ return float(value)
+ except ValueError:
+ return value
+ return value
+
+
+def _tags(raw: Any) -> dict[str, Any]:
+ out: dict[str, Any] = {}
+ for tag in raw or []:
+ if isinstance(tag, dict) and isinstance(tag.get("key"), str):
+ out[tag["key"]] = _tag_value(tag)
+ return out
+
+
+def decode_jaeger_document(data: Any) -> DecodeResult:
+ result = DecodeResult()
+ if not isinstance(data, dict) or not isinstance(data.get("data"), list):
+ raise ValueError("Invalid Jaeger JSON format: expected top-level 'data' key")
+ for trace_data in data["data"]:
+ if not isinstance(trace_data, dict):
+ continue
+ resources: dict[str, Resource] = {}
+ for pid, proc in (trace_data.get("processes") or {}).items():
+ if not isinstance(proc, dict):
+ continue
+ attrs = _tags(proc.get("tags"))
+ if isinstance(proc.get("serviceName"), str):
+ attrs = {"service.name": proc["serviceName"], **attrs}
+ resources[pid] = Resource(attributes=MappingProxyType(attrs) if attrs else EMPTY_ATTRS)
+ scopes: dict[tuple[str, str | None], Scope] = {}
+ for raw in trace_data.get("spans") or []:
+ if not isinstance(raw, dict):
+ continue
+ span = _span(raw, resources, scopes, result)
+ if span is not None:
+ result.spans.append(span)
+ return result
+
+
+def _span(raw: dict, resources: dict[str, Resource], scopes: dict, result: DecodeResult) -> Span | None:
+ trace_id = normalize_id(raw.get("traceID"), TRACE_ID_BYTES, False, result, "trace id")
+ span_id = normalize_id(raw.get("spanID"), SPAN_ID_BYTES, False, result, "span id")
+ if trace_id is None or span_id is None:
+ result.reject_span("span(s) rejected: invalid trace or span id")
+ return None
+ tags = _tags(raw.get("tags"))
+ parent_id = None
+ links = []
+ for ref in raw.get("references") or []:
+ if not isinstance(ref, dict):
+ continue
+ ref_span = normalize_id(ref.get("spanID"), SPAN_ID_BYTES, False, result, "parent span id")
+ if ref_span is None:
+ continue
+ if ref.get("refType") == "CHILD_OF" and parent_id is None:
+ parent_id = ref_span
+ else:
+ ref_trace = normalize_id(ref.get("traceID"), TRACE_ID_BYTES, False, result, "link trace id") or trace_id
+ links.append(SpanLink(trace_id=ref_trace, span_id=ref_span))
+
+ status = _STATUS.get(str(tags.get("otel.status_code", "")).upper(), STATUS_UNSET)
+ if status == STATUS_UNSET and tags.get("error") is True:
+ status = STATUS_ERROR
+ scope_name = next((tags[k] for k in _SCOPE_NAME_TAGS if isinstance(tags.get(k), str)), "")
+ scope_version = next((tags[k] for k in _SCOPE_VERSION_TAGS if isinstance(tags.get(k), str)), None)
+ scope_key = (scope_name, scope_version)
+ if scope_key not in scopes:
+ scopes[scope_key] = Scope(name=scope_name, version=scope_version)
+
+ events = []
+ for log in raw.get("logs") or []:
+ if not isinstance(log, dict):
+ continue
+ fields = _tags(log.get("fields"))
+ name = fields.pop("event", "log")
+ events.append(
+ SpanEvent(
+ name=str(name),
+ time_unix_nano=int(log.get("timestamp") or 0) * 1000,
+ attributes=MappingProxyType(fields),
+ )
+ )
-class JaegerJsonLoader(TraceLoader):
- """Loads traces from Jaeger JSON export files.
-
- Expected format::
-
- {
- "data": [
- {
- "traceID": "...",
- "spans": [
- {
- "traceID": "...",
- "spanID": "...",
- "operationName": "...",
- "references": [{"refType": "CHILD_OF", "spanID": "..."}],
- "startTime": ,
- "duration": ,
- "tags": [{"key": "...", "type": "...", "value": ...}],
- ...
- },
- ...
- ]
- },
- ...
- ]
- }
- """
-
+ start_us = int(raw.get("startTime") or 0)
+ duration_us = int(raw.get("duration") or 0)
+ status_message = tags.get("otel.status_description")
+ return Span(
+ trace_id=trace_id,
+ span_id=span_id,
+ parent_span_id=parent_id,
+ name=raw.get("operationName") if isinstance(raw.get("operationName"), str) else "",
+ kind=_KINDS.get(str(tags.get("span.kind", "")).lower(), 0),
+ start_time_unix_nano=start_us * 1000,
+ end_time_unix_nano=(start_us + duration_us) * 1000,
+ attributes=MappingProxyType({k: v for k, v in tags.items() if k not in _FIELD_TAGS}),
+ status_code=status,
+ status_message=status_message if isinstance(status_message, str) else None,
+ events=tuple(events),
+ links=tuple(links),
+ resource=resources.get(raw.get("processID"), Resource()),
+ scope=scopes[scope_key],
+ )
+
+
+class JaegerJsonLoader:
def format_name(self) -> str:
return "jaeger-json"
def load(self, source: str) -> list[Trace]:
with open(source, encoding="utf-8") as f:
raw = json.load(f)
-
if not isinstance(raw, dict) or "data" not in raw:
raise ValueError(f"Invalid Jaeger JSON format: expected top-level 'data' key in {source}")
-
- traces: list[Trace] = []
- for trace_data in raw["data"]:
- trace = self._parse_trace(trace_data)
- if trace:
- traces.append(trace)
-
+ result = decode_jaeger_document(raw)
+ traces, _ = build_traces(result.spans)
logger.info("Loaded %d trace(s) from %s", len(traces), source)
return traces
-
- def _parse_trace(self, trace_data: dict[str, Any]) -> Trace | None:
- trace_id = trace_data.get("traceID", "")
- raw_spans = trace_data.get("spans", [])
-
- if not raw_spans:
- logger.warning("Trace %s has no spans, skipping", trace_id)
- return None
-
- spans_by_id: dict[str, Span] = {}
- for raw_span in raw_spans:
- span = self._parse_span(raw_span)
- spans_by_id[span.span_id] = span
-
- root_spans: list[Span] = []
- for span in spans_by_id.values():
- if span.parent_span_id and span.parent_span_id in spans_by_id:
- spans_by_id[span.parent_span_id].children.append(span)
- else:
- root_spans.append(span)
-
- for span in spans_by_id.values():
- span.children.sort(key=lambda s: s.start_time)
-
- root_spans.sort(key=lambda s: s.start_time)
-
- return Trace(
- trace_id=trace_id,
- root_spans=root_spans,
- all_spans=list(spans_by_id.values()),
- )
-
- def _parse_span(self, raw_span: dict[str, Any]) -> Span:
- parent_span_id: str | None = None
- for ref in raw_span.get("references", []):
- if ref.get("refType") == "CHILD_OF":
- parent_span_id = ref.get("spanID")
- break
-
- # Jaeger tags are an array of {key, type, value} — flatten to dict
- tags: dict[str, Any] = {}
- for tag in raw_span.get("tags", []):
- tags[tag["key"]] = tag["value"]
-
- return Span(
- trace_id=raw_span.get("traceID", ""),
- span_id=raw_span.get("spanID", ""),
- parent_span_id=parent_span_id,
- operation_name=raw_span.get("operationName", ""),
- start_time=raw_span.get("startTime", 0),
- duration=raw_span.get("duration", 0),
- tags=tags,
- )
diff --git a/src/agentevals/loader/otlp.py b/src/agentevals/loader/otlp.py
index de680fd2..2c1bcfb5 100644
--- a/src/agentevals/loader/otlp.py
+++ b/src/agentevals/loader/otlp.py
@@ -1,252 +1,89 @@
-"""OTLP/JSON trace loader for native OpenTelemetry format."""
+"""OTLP/JSON file reader.
+
+Accepted shapes:
+
+1. An OTLP export document: ``{"resourceSpans": [...], "resourceLogs": [...]}``.
+2. Tempo v1 ``{"batches": [...]}`` with ``instrumentationLibrarySpans``, and the Tempo v2
+ ``{"trace": {...}}`` wrapper.
+3. JSON lines where each line is an export document, which is what the Collector ``file``
+ exporter writes (traces and logs may be mixed).
+4. JSON lines where each line is a bare OTLP span, or a single bare span or list of spans.
+"""
from __future__ import annotations
import json
import logging
+from typing import Any
-from ..otlp_anyvalue import decode_attribute, decode_attributes, is_any_value
-from ..trace_attrs import (
- OTEL_GENAI_INPUT_MESSAGES,
- OTEL_GENAI_OUTPUT_MESSAGES,
- OTEL_SCHEMA_URL,
- OTEL_SCOPE,
- OTEL_SCOPE_VERSION,
-)
-from .base import Span, Trace, TraceLoader
+from ..otel.decode import DecodeResult, decode_bare_spans_json, decode_json_document, is_otlp_document
+from ..otel.model import Trace, build_traces
logger = logging.getLogger(__name__)
+_NOT_JSON = object()
+
+
+def _looks_like_span(obj: Any) -> bool:
+ return isinstance(obj, dict) and ("spanId" in obj or "traceId" in obj)
+
+
+def decode_otlp_text(content: str) -> DecodeResult:
+ """Decode OTLP/JSON file content leniently. Raises ``ValueError`` for content that is not OTLP."""
+ content = content.strip()
+ if not content:
+ return DecodeResult()
+ try:
+ data = json.loads(content)
+ except ValueError:
+ data = _NOT_JSON
+ except RecursionError as exc:
+ raise ValueError("JSON nested too deeply") from exc
+
+ if data is not _NOT_JSON:
+ if is_otlp_document(data):
+ return decode_json_document(data, strict=False)
+ if _looks_like_span(data):
+ return decode_bare_spans_json([data], strict=False)
+ if isinstance(data, list) and all(_looks_like_span(item) for item in data):
+ return decode_bare_spans_json(data, strict=False)
+ raise ValueError("not an OTLP JSON document: expected resourceSpans, resourceLogs or batches")
+
+ result = DecodeResult()
+ bare: list[dict] = []
+ for number, line in enumerate(content.splitlines(), start=1):
+ line = line.strip()
+ if not line:
+ continue
+ try:
+ obj = json.loads(line)
+ except (ValueError, RecursionError) as exc:
+ raise ValueError(f"line {number}: invalid JSON") from exc
+ if is_otlp_document(obj):
+ result.extend(decode_json_document(obj, strict=False))
+ elif _looks_like_span(obj):
+ bare.append(obj)
+ else:
+ raise ValueError(f"line {number}: expected an OTLP export document or a span")
+ if bare:
+ result.extend(decode_bare_spans_json(bare, strict=False))
+ return result
-class OtlpJsonLoader(TraceLoader):
- """Loads traces from OTLP/JSON format (native OpenTelemetry format).
-
- Supports several shapes:
- 1. Standard OTLP export: ``{"resourceSpans": [...]}``
- 2. Legacy/Tempo v1 export: ``{"batches": [...]}`` with
- ``instrumentationLibrarySpans`` instead of ``scopeSpans``
- 3. Tempo v2 wrapper: ``{"trace": {"resourceSpans": [...]}}``
- 4. JSONL: one span per line (for streaming use cases)
-
- OTLP uses nanosecond timestamps - these are converted to microseconds
- to match the internal Span representation.
- """
+class OtlpJsonLoader:
def format_name(self) -> str:
return "otlp-json"
def load(self, source: str) -> list[Trace]:
- """Load OTLP JSON file or JSONL (one span per line)."""
with open(source, encoding="utf-8") as f:
- content = f.read().strip()
-
- if not content:
- logger.warning("Empty trace file: %s", source)
- return []
-
- if content.startswith("{"):
- try:
- data = json.loads(content)
- if self._is_otlp_export(data):
- traces = self._parse_otlp_export(data)
- else:
- raise ValueError("Not a full OTLP export, trying JSONL")
- except (json.JSONDecodeError, ValueError):
- spans_list = [json.loads(line) for line in content.split("\n") if line.strip()]
- traces = self._parse_otlp_spans(spans_list)
- else:
- spans_list = [json.loads(line) for line in content.split("\n") if line.strip()]
- traces = self._parse_otlp_spans(spans_list)
-
+ result = decode_otlp_text(f.read())
+ traces, _ = build_traces(result.spans, result.logs)
logger.info("Loaded %d trace(s) from %s", len(traces), source)
return traces
def load_from_dict(self, data: dict) -> list[Trace]:
- """Load traces from an OTLP JSON dict.
-
- Accepts ``resourceSpans``, legacy ``batches``, and Tempo v2's
- ``{"trace": {...}}`` wrapper.
- """
- if not self._is_otlp_export(data):
+ if not isinstance(data, dict) or not is_otlp_document(data):
raise ValueError("Expected OTLP JSON with 'resourceSpans' or 'batches' key (or wrapped under 'trace')")
- return self._parse_otlp_export(data)
-
- @staticmethod
- def _is_otlp_export(data: dict) -> bool:
- """Return True if ``data`` looks like a full OTLP export in any of the
- supported shapes (resourceSpans, batches, or Tempo v2 trace wrapper)."""
- if "resourceSpans" in data or "batches" in data:
- return True
- inner = data.get("trace")
- if isinstance(inner, dict) and ("resourceSpans" in inner or "batches" in inner):
- return True
- return False
-
- def _parse_otlp_export(self, data: dict) -> list[Trace]:
- """Parse full OTLP export structure (resourceSpans / batches / Tempo wrapper)."""
- # Tempo v2 wraps OTLP under {"trace": {...}}; unwrap before parsing.
- inner = data.get("trace")
- if isinstance(inner, dict) and ("resourceSpans" in inner or "batches" in inner):
- data = inner
-
- # Older OTLP/Tempo exports use "batches" instead of "resourceSpans".
- resource_spans = data.get("resourceSpans") or data.get("batches", [])
-
- all_spans = []
- for resource_span in resource_spans:
- resource_attrs = self._extract_attributes(resource_span.get("resource", {}).get("attributes", []))
- resource_schema_url = resource_span.get("schemaUrl", "")
- scope_spans = resource_span.get("scopeSpans") or resource_span.get("instrumentationLibrarySpans", [])
- for scope_span in scope_spans:
- scope = scope_span.get("scope") or scope_span.get("instrumentationLibrary") or {}
- scope_name = scope.get("name", "")
- scope_version = scope.get("version", "")
- schema_url = scope_span.get("schemaUrl", "") or resource_schema_url
-
- for span_data in scope_span.get("spans", []):
- span = self._parse_span(span_data, resource_attrs, scope_name, scope_version, schema_url)
- all_spans.append(span)
-
- return self._build_traces(all_spans)
-
- def _parse_otlp_spans(self, spans_data: list[dict]) -> list[Trace]:
- """Parse flat list of OTLP spans (JSONL format for streaming)."""
- all_spans = [self._parse_span(span_data, {}, "", "", "") for span_data in spans_data]
- return self._build_traces(all_spans)
-
- _GENAI_EVENT_KEYS = {OTEL_GENAI_INPUT_MESSAGES, OTEL_GENAI_OUTPUT_MESSAGES}
-
- def _parse_span(
- self,
- span_data: dict,
- resource_attrs: dict,
- scope_name: str,
- scope_version: str,
- schema_url: str = "",
- ) -> Span:
- """Convert OTLP span to normalized Span object."""
- attributes = self._extract_attributes(span_data.get("attributes", []))
-
- if scope_name:
- attributes[OTEL_SCOPE] = scope_name
- if scope_version:
- attributes[OTEL_SCOPE_VERSION] = scope_version
- if schema_url:
- attributes[OTEL_SCHEMA_URL] = schema_url
-
- self._promote_genai_event_attributes(span_data, attributes)
-
- attributes.update(resource_attrs)
-
- start_time_ns = int(span_data.get("startTimeUnixNano", "0"))
- end_time_ns = int(span_data.get("endTimeUnixNano", "0"))
- start_time_us = start_time_ns // 1000
- duration_us = (end_time_ns - start_time_ns) // 1000
-
- parent_span_id = span_data.get("parentSpanId") or None
-
- return Span(
- trace_id=span_data.get("traceId", ""),
- span_id=span_data.get("spanId", ""),
- parent_span_id=parent_span_id,
- operation_name=span_data.get("name", ""),
- start_time=start_time_us,
- duration=duration_us,
- tags=attributes,
- )
-
- def _promote_genai_event_attributes(self, span_data: dict, attributes: dict) -> None:
- """Promote gen_ai.input/output.messages from span events to attributes.
-
- Some SDKs (e.g. Strands) store message content in span events rather
- than span attributes. This promotes those values so the converter can
- find them via normal attribute lookups.
-
- Accepts events in OTLP array format or flat/nested dict format.
- """
- for event in span_data.get("events", []):
- event_attrs = event.get("attributes", [])
- if isinstance(event_attrs, dict):
- flat = self._flatten_nested_dict(event_attrs)
- for key in self._GENAI_EVENT_KEYS:
- if key in flat and key not in attributes:
- attributes[key] = flat[key]
- else:
- for attr in event_attrs:
- key = attr.get("key", "")
- if key in self._GENAI_EVENT_KEYS and key not in attributes:
- value_obj = attr.get("value", {})
- if is_any_value(value_obj):
- keep, value = decode_attribute(key, value_obj)
- if keep:
- attributes[key] = value
-
- def _extract_attributes(self, attrs) -> dict:
- """Convert attributes to a flat ``{key: value}`` dict.
-
- Accepts three formats:
- 1. OTLP array: ``[{key, value: {stringValue|intValue|...}}]``
- 2. Flat dict: ``{"gen_ai.operation.name": "chat"}``
- 3. Nested dict (ClickHouse JSON column): ``{"gen_ai": {"operation": {"name": "chat"}}}``
-
- Formats 2 and 3 are auto-detected by checking whether *attrs* is a dict.
- Nested dicts are recursively flattened to dot-notation keys.
- """
- if isinstance(attrs, dict):
- return self._flatten_nested_dict(attrs)
-
- return decode_attributes(attrs)
-
- @staticmethod
- def _flatten_nested_dict(d: dict, prefix: str = "") -> dict:
- """Recursively flatten a nested dict to dot-notation keys.
-
- ``{"gen_ai": {"operation": {"name": "chat"}}}``
- becomes ``{"gen_ai.operation.name": "chat"}``.
-
- Already-flat keys (e.g. ``{"service.name": "agent"}``) pass through
- unchanged.
- """
- result = {}
- for key, value in d.items():
- full_key = f"{prefix}{key}" if not prefix else f"{prefix}.{key}"
- if isinstance(value, dict):
- result.update(OtlpJsonLoader._flatten_nested_dict(value, full_key))
- else:
- result[full_key] = value
- return result
-
- def _build_traces(self, all_spans: list[Span]) -> list[Trace]:
- """Group spans by trace_id and build parent-child relationships."""
- traces_by_id: dict[str, list[Span]] = {}
-
- for span in all_spans:
- if span.trace_id not in traces_by_id:
- traces_by_id[span.trace_id] = []
- traces_by_id[span.trace_id].append(span)
-
- traces = []
- for trace_id, spans in traces_by_id.items():
- spans_by_id = {s.span_id: s for s in spans}
- root_spans = []
-
- for span in spans:
- if span.parent_span_id and span.parent_span_id in spans_by_id:
- spans_by_id[span.parent_span_id].children.append(span)
- else:
- root_spans.append(span)
-
- for span in spans:
- span.children.sort(key=lambda s: s.start_time)
-
- root_spans.sort(key=lambda s: s.start_time)
-
- traces.append(
- Trace(
- trace_id=trace_id,
- root_spans=root_spans,
- all_spans=spans,
- )
- )
-
+ result = decode_json_document(data, strict=False)
+ traces, _ = build_traces(result.spans, result.logs)
return traces
diff --git a/src/agentevals/mcp_server.py b/src/agentevals/mcp_server.py
index 4025ea03..62ba67c2 100644
--- a/src/agentevals/mcp_server.py
+++ b/src/agentevals/mcp_server.py
@@ -1,8 +1,8 @@
from __future__ import annotations
import os
-import tempfile
from typing import Any
+from urllib.parse import quote
import httpx
from mcp.server import FastMCP
@@ -137,12 +137,13 @@ def _unwrap(response_json: dict) -> Any:
raise RuntimeError(f"API error: {response_json['error']}")
return response_json["data"]
- async def _get(path: str) -> Any:
+ async def _get(path: str, *, envelope: bool = True) -> Any:
+ """``envelope=False`` for routes that return a bare document, such as the OTLP export."""
try:
async with httpx.AsyncClient(timeout=30) as client:
r = await client.get(f"{_url}{path}")
r.raise_for_status()
- return _unwrap(r.json())
+ return _unwrap(r.json()) if envelope else r.json()
except httpx.ConnectError as exc:
raise RuntimeError(
f"Cannot reach agentevals server at {_url}. Start it with: uv run agentevals serve --dev"
@@ -373,45 +374,31 @@ async def summarize_session(session_id: str) -> SummarizeSessionResponse:
- tool: the tool/function name
- args: arguments passed to the tool
"""
- from agentevals.converter import convert_traces
- from agentevals.loader.otlp import OtlpJsonLoader
-
- raw = await _post("/api/streaming/get-trace", {"session_id": session_id})
-
- with tempfile.NamedTemporaryFile(mode="w", suffix=".jsonl", delete=False, encoding="utf-8") as f:
- f.write(raw["traceContent"])
- tmp_path = f.name
-
- traces = OtlpJsonLoader().load(tmp_path)
- if not traces:
- return SummarizeSessionResponse(
- session_id=session_id,
- num_spans=raw["numSpans"],
- invocations=[],
+ from agentevals.genai.extract import extract_conversation
+ from agentevals.genai.messages import text_of
+ from agentevals.otel.decode import decode_json_document
+ from agentevals.otel.model import build_traces
+
+ document = await _get(f"/api/streaming/sessions/{quote(session_id, safe='')}/otlp", envelope=False)
+ decoded = decode_json_document(document, strict=False)
+ traces, _ = build_traces(decoded.spans, decoded.logs)
+ conversation = extract_conversation(traces, session_id)
+
+ invocations = [
+ InvocationSummaryResponse(
+ user=text_of(turn.user_input) or "",
+ response=text_of(turn.final_output) or "",
+ tool_calls=[
+ ToolCallResponse(tool=t.name, args=t.arguments if isinstance(t.arguments, dict) else {})
+ for t in turn.tool_calls
+ ],
)
-
- invocations = []
- for conv in convert_traces(traces):
- for inv in conv.invocations:
- tool_calls = []
- if inv.intermediate_data:
- tool_calls = [
- ToolCallResponse(tool=tu.name, args=getattr(tu, "args", {}))
- for tu in inv.intermediate_data.tool_uses
- ]
- invocations.append(
- InvocationSummaryResponse(
- user=next((p.text for p in inv.user_content.parts if p.text), "") if inv.user_content else "",
- response=next((p.text for p in inv.final_response.parts if p.text), "")
- if inv.final_response
- else "",
- tool_calls=tool_calls,
- )
- )
+ for turn in conversation.turns
+ ]
return SummarizeSessionResponse(
session_id=session_id,
- num_spans=raw["numSpans"],
+ num_spans=sum(len(t.spans) for t in traces),
num_invocations=len(invocations),
invocations=invocations,
)
@@ -429,7 +416,8 @@ async def evaluate_sessions(
This is the primary tool for regression testing streamed agent sessions.
The server automatically builds an eval set from the golden session's
- trace, then evaluates every other completed session against it. No file
+ trace, then evaluates every completed session against it, the golden
+ session included (it should score as a match against itself). No file
creation or pre-existing eval set is needed.
Typical workflow:
diff --git a/src/agentevals/otel/__init__.py b/src/agentevals/otel/__init__.py
new file mode 100644
index 00000000..8d5cda5a
--- /dev/null
+++ b/src/agentevals/otel/__init__.py
@@ -0,0 +1 @@
+"""OpenTelemetry data model, OTLP decoding and encoding."""
diff --git a/src/agentevals/otel/decode.py b/src/agentevals/otel/decode.py
new file mode 100644
index 00000000..32c558c0
--- /dev/null
+++ b/src/agentevals/otel/decode.py
@@ -0,0 +1,678 @@
+"""Decode OTLP traces and logs into envelopes.
+
+Two inputs, one result shape:
+
+* OTLP/JSON documents (dicts), including legacy and vendor variants: protobuf field names
+ (``resource_spans``, ``trace_id``), ``batches`` and
+ ``instrumentationLibrarySpans`` (Tempo v1), the ``{"trace": {...}}`` wrapper (Tempo v2),
+ attributes given as flat or nested dicts (ClickHouse JSON columns), enum names instead of
+ numbers, and bare spans with no resource envelope (one span per line).
+* Protobuf ``Export{Trace,Logs}ServiceRequest`` messages, read field by field. ``MessageToDict``
+ is never used: it base64 encodes ids and costs a full extra copy.
+
+Decoders never raise for bad data. Items that cannot be represented are counted in
+:class:`DecodeResult` so receivers can report them through ``partialSuccess``.
+
+Id handling depends on ``strict``. Receivers decode strictly: a trace id must be 16 bytes and a
+span id 8 bytes (32 and 16 hex characters in JSON) and not all zero, otherwise the item is
+rejected. File loaders decode leniently: well formed hex is lowercased, base64 of the right
+length is converted to hex, and any other non empty id is kept as is with a warning, so old
+exports (64 bit Jaeger ids, base64 ids) still load.
+"""
+
+from __future__ import annotations
+
+import base64
+import binascii
+import logging
+from collections import Counter
+from collections.abc import Iterable, Mapping
+from dataclasses import dataclass, field
+from types import MappingProxyType
+from typing import Any
+
+from .model import (
+ EMPTY_ATTRS,
+ EMPTY_RESOURCE,
+ EMPTY_SCOPE,
+ LogRecord,
+ Resource,
+ Scope,
+ Span,
+ SpanEvent,
+ SpanLink,
+)
+
+logger = logging.getLogger(__name__)
+
+MAX_ANY_VALUE_DEPTH = 64
+TRACE_ID_BYTES = 16
+SPAN_ID_BYTES = 8
+
+EVENT_NAME_ATTRIBUTES = ("otel.event.name", "event.name")
+
+_HEX = frozenset("0123456789abcdef")
+
+_SPAN_KINDS = {
+ "SPAN_KIND_UNSPECIFIED": 0,
+ "SPAN_KIND_INTERNAL": 1,
+ "SPAN_KIND_SERVER": 2,
+ "SPAN_KIND_CLIENT": 3,
+ "SPAN_KIND_PRODUCER": 4,
+ "SPAN_KIND_CONSUMER": 5,
+}
+_STATUS_CODES = {"STATUS_CODE_UNSET": 0, "STATUS_CODE_OK": 1, "STATUS_CODE_ERROR": 2}
+
+
+@dataclass(slots=True)
+class DecodeResult:
+ spans: list[Span] = field(default_factory=list)
+ logs: list[LogRecord] = field(default_factory=list)
+ rejected_spans: int = 0
+ rejected_logs: int = 0
+ reasons: Counter = field(default_factory=Counter)
+ warnings: Counter = field(default_factory=Counter)
+
+ def reject_span(self, reason: str) -> None:
+ self.rejected_spans += 1
+ self.reasons[reason] += 1
+
+ def reject_log(self, reason: str) -> None:
+ self.rejected_logs += 1
+ self.reasons[reason] += 1
+
+ def warn(self, message: str) -> None:
+ self.warnings[message] += 1
+
+ def extend(self, other: DecodeResult) -> None:
+ self.spans.extend(other.spans)
+ self.logs.extend(other.logs)
+ self.rejected_spans += other.rejected_spans
+ self.rejected_logs += other.rejected_logs
+ self.reasons.update(other.reasons)
+ self.warnings.update(other.warnings)
+
+ @property
+ def error_message(self) -> str:
+ return "; ".join(f"{n} {reason}" for reason, n in self.reasons.items())
+
+
+def _frozen(d: dict[str, Any]) -> Mapping[str, Any]:
+ return MappingProxyType(d) if d else EMPTY_ATTRS
+
+
+# ---------------------------------------------------------------- ids
+
+
+def _is_hex(s: str) -> bool:
+ return bool(s) and all(c in _HEX for c in s)
+
+
+def normalize_id(raw: Any, nbytes: int, strict: bool, result: DecodeResult, what: str) -> str | None:
+ """Return the id as lowercase hex, or ``None`` when it must be treated as absent or invalid."""
+ if raw is None or raw == "":
+ return None
+ if isinstance(raw, (bytes, bytearray)):
+ valid = len(raw) == nbytes and any(raw)
+ if not raw or (strict and not valid):
+ return None
+ return bytes(raw).hex()
+ if not isinstance(raw, str):
+ return None
+ lowered = raw.strip().lower()
+ if len(lowered) == 2 * nbytes and _is_hex(lowered):
+ if set(lowered) == {"0"}:
+ return None
+ return lowered
+ if strict:
+ return None
+ try:
+ decoded = base64.b64decode(raw, validate=True)
+ except (binascii.Error, ValueError):
+ decoded = b""
+ if len(decoded) == nbytes and any(decoded):
+ return decoded.hex()
+ result.warn(f"non standard {what} kept as is")
+ return lowered or None
+
+
+# ---------------------------------------------------------------- scalars
+
+
+def _int(value: Any) -> int:
+ if isinstance(value, bool):
+ return 0
+ if isinstance(value, int):
+ return value
+ if isinstance(value, float):
+ return int(value)
+ if isinstance(value, str):
+ try:
+ return int(value)
+ except ValueError:
+ try:
+ return int(float(value))
+ except ValueError:
+ return 0
+ return 0
+
+
+def _opt_int(value: Any) -> int | None:
+ if value is None or value == "":
+ return None
+ n = _int(value)
+ return n or None
+
+
+def _enum(value: Any, names: Mapping[str, int]) -> int:
+ if isinstance(value, str) and value in names:
+ return names[value]
+ return _int(value)
+
+
+def _opt_str(value: Any) -> str | None:
+ if isinstance(value, str) and value:
+ return value
+ return None
+
+
+# ---------------------------------------------------------------- AnyValue (JSON)
+
+
+def any_value_from_json(obj: Any, result: DecodeResult, depth: int = 0) -> Any:
+ """Decode an OTLP/JSON ``AnyValue``. Objects without a union field decode to ``None``."""
+ if not isinstance(obj, Mapping):
+ return None
+ if depth > MAX_ANY_VALUE_DEPTH:
+ result.warn("value nested deeper than the decoder limit was dropped")
+ return None
+ if "stringValue" in obj:
+ v = obj["stringValue"]
+ return v if isinstance(v, str) else str(v)
+ if "boolValue" in obj:
+ return bool(obj["boolValue"])
+ if "intValue" in obj:
+ return _int(obj["intValue"])
+ if "doubleValue" in obj:
+ try:
+ return float(obj["doubleValue"])
+ except (TypeError, ValueError):
+ return None
+ if "bytesValue" in obj:
+ raw = obj["bytesValue"]
+ if isinstance(raw, str):
+ try:
+ return base64.b64decode(raw, validate=False)
+ except (binascii.Error, ValueError):
+ return raw.encode()
+ return None
+ if "arrayValue" in obj:
+ arr = obj["arrayValue"] or {}
+ values = arr.get("values", []) if isinstance(arr, Mapping) else []
+ return [any_value_from_json(v, result, depth + 1) for v in values if isinstance(v, Mapping)]
+ if "kvlistValue" in obj:
+ kv = obj["kvlistValue"] or {}
+ values = kv.get("values", []) if isinstance(kv, Mapping) else []
+ out = {}
+ for item in values:
+ if isinstance(item, Mapping) and isinstance(item.get("key"), str):
+ out[item["key"]] = any_value_from_json(item.get("value", {}), result, depth + 1)
+ return out
+ return None
+
+
+def _has_any_value(obj: Any) -> bool:
+ return isinstance(obj, Mapping) and any(
+ k in obj
+ for k in ("stringValue", "boolValue", "intValue", "doubleValue", "bytesValue", "arrayValue", "kvlistValue")
+ )
+
+
+def _flatten_dict(d: Mapping, prefix: str, out: dict, depth: int) -> None:
+ for key, value in d.items():
+ full = f"{prefix}.{key}" if prefix else str(key)
+ if isinstance(value, Mapping) and depth < MAX_ANY_VALUE_DEPTH:
+ _flatten_dict(value, full, out, depth + 1)
+ else:
+ out[full] = value
+
+
+def attributes_from_json(attrs: Any, result: DecodeResult) -> Mapping[str, Any]:
+ """OTLP ``[{key, value}]`` lists, or dicts (flat or nested, flattened to dotted keys).
+
+ List entries whose value carries no ``AnyValue`` field are skipped, as OTLP readers do.
+ """
+ out: dict[str, Any] = {}
+ if isinstance(attrs, Mapping):
+ _flatten_dict(attrs, "", out, 0)
+ return _frozen(out)
+ if not isinstance(attrs, list):
+ return EMPTY_ATTRS
+ for item in attrs:
+ if not isinstance(item, Mapping):
+ continue
+ key = item.get("key")
+ value = item.get("value")
+ if not isinstance(key, str) or not _has_any_value(value):
+ continue
+ out[key] = any_value_from_json(value, result)
+ return _frozen(out)
+
+
+# ---------------------------------------------------------------- JSON documents
+
+
+def _resource_from_json(obj: Any, schema_url: Any, result: DecodeResult) -> Resource:
+ if not isinstance(obj, Mapping) and not schema_url:
+ return EMPTY_RESOURCE
+ obj = obj if isinstance(obj, Mapping) else {}
+ attrs = attributes_from_json(obj.get("attributes", []), result)
+ return Resource(
+ attributes=attrs,
+ schema_url=_opt_str(schema_url),
+ dropped_attributes_count=_int(obj.get("droppedAttributesCount")),
+ )
+
+
+def _scope_from_json(obj: Any, schema_url: Any, result: DecodeResult) -> Scope:
+ if not isinstance(obj, Mapping):
+ obj = {}
+ name = obj.get("name") if isinstance(obj.get("name"), str) else ""
+ if not name and not obj and not schema_url:
+ return EMPTY_SCOPE
+ return Scope(
+ name=name,
+ version=_opt_str(obj.get("version")),
+ schema_url=_opt_str(schema_url),
+ attributes=attributes_from_json(obj.get("attributes", []), result),
+ dropped_attributes_count=_int(obj.get("droppedAttributesCount")),
+ )
+
+
+def span_from_json(
+ data: Any,
+ resource: Resource,
+ scope: Scope,
+ strict: bool,
+ result: DecodeResult,
+) -> Span | None:
+ if not isinstance(data, Mapping):
+ result.reject_span("span(s) rejected: not an object")
+ return None
+ trace_id = normalize_id(data.get("traceId"), TRACE_ID_BYTES, strict, result, "trace id")
+ span_id = normalize_id(data.get("spanId"), SPAN_ID_BYTES, strict, result, "span id")
+ if trace_id is None or span_id is None:
+ if data.get("traceId") in (None, "") or data.get("spanId") in (None, ""):
+ result.reject_span("span(s) rejected: no traceId or spanId field")
+ else:
+ result.reject_span("span(s) rejected: invalid trace or span id")
+ return None
+ parent = data.get("parentSpanId")
+ parent_id = normalize_id(parent, SPAN_ID_BYTES, strict, result, "parent span id") if parent else None
+ if parent and parent_id is None:
+ result.warn("invalid parent span id ignored")
+
+ status = data.get("status") if isinstance(data.get("status"), Mapping) else {}
+ events = []
+ for ev in data.get("events") or []:
+ if not isinstance(ev, Mapping):
+ continue
+ events.append(
+ SpanEvent(
+ name=ev.get("name") if isinstance(ev.get("name"), str) else "",
+ time_unix_nano=_int(ev.get("timeUnixNano")),
+ attributes=attributes_from_json(ev.get("attributes", []), result),
+ dropped_attributes_count=_int(ev.get("droppedAttributesCount")),
+ )
+ )
+ links = []
+ for ln in data.get("links") or []:
+ if not isinstance(ln, Mapping):
+ continue
+ lt = normalize_id(ln.get("traceId"), TRACE_ID_BYTES, strict, result, "link trace id")
+ ls = normalize_id(ln.get("spanId"), SPAN_ID_BYTES, strict, result, "link span id")
+ if lt is None or ls is None:
+ result.warn("link with invalid ids dropped")
+ continue
+ links.append(
+ SpanLink(
+ trace_id=lt,
+ span_id=ls,
+ trace_state=_opt_str(ln.get("traceState")),
+ attributes=attributes_from_json(ln.get("attributes", []), result),
+ flags=_opt_int(ln.get("flags")),
+ dropped_attributes_count=_int(ln.get("droppedAttributesCount")),
+ )
+ )
+ return Span(
+ trace_id=trace_id,
+ span_id=span_id,
+ parent_span_id=parent_id,
+ name=data.get("name") if isinstance(data.get("name"), str) else "",
+ kind=_enum(data.get("kind"), _SPAN_KINDS),
+ start_time_unix_nano=_int(data.get("startTimeUnixNano")),
+ end_time_unix_nano=_int(data.get("endTimeUnixNano")),
+ attributes=attributes_from_json(data.get("attributes", []), result),
+ status_code=_enum(status.get("code"), _STATUS_CODES),
+ status_message=_opt_str(status.get("message")),
+ events=tuple(events),
+ links=tuple(links),
+ trace_state=_opt_str(data.get("traceState")),
+ flags=_opt_int(data.get("flags")),
+ resource=resource,
+ scope=scope,
+ dropped_attributes_count=_int(data.get("droppedAttributesCount")),
+ dropped_events_count=_int(data.get("droppedEventsCount")),
+ dropped_links_count=_int(data.get("droppedLinksCount")),
+ )
+
+
+def resolve_event_name(event_name: Any, attributes: Mapping[str, Any]) -> str | None:
+ """OTLP ``eventName`` first, then the ``otel.event.name`` and legacy ``event.name`` attributes."""
+ if isinstance(event_name, str) and event_name:
+ return event_name
+ for key in EVENT_NAME_ATTRIBUTES:
+ value = attributes.get(key)
+ if isinstance(value, str) and value:
+ return value
+ return None
+
+
+def log_from_json(data: Any, resource: Resource, scope: Scope, strict: bool, result: DecodeResult) -> LogRecord | None:
+ if not isinstance(data, Mapping):
+ result.reject_log("log record(s) rejected: not an object")
+ return None
+ raw_trace, raw_span = data.get("traceId"), data.get("spanId")
+ trace_id = normalize_id(raw_trace, TRACE_ID_BYTES, strict, result, "trace id")
+ span_id = normalize_id(raw_span, SPAN_ID_BYTES, strict, result, "span id")
+ if (raw_trace and trace_id is None) or (raw_span and span_id is None):
+ if strict:
+ result.reject_log("log record(s) rejected: invalid trace or span id")
+ return None
+ attributes = attributes_from_json(data.get("attributes", []), result)
+ body = data.get("body")
+ return LogRecord(
+ time_unix_nano=_opt_int(data.get("timeUnixNano")),
+ observed_time_unix_nano=_opt_int(data.get("observedTimeUnixNano")),
+ event_name=resolve_event_name(data.get("eventName"), attributes),
+ severity_number=_severity(data.get("severityNumber")),
+ severity_text=_opt_str(data.get("severityText")),
+ body=any_value_from_json(body, result) if _has_any_value(body) else None,
+ attributes=attributes,
+ trace_id=trace_id,
+ span_id=span_id if trace_id else None,
+ flags=_opt_int(data.get("flags")),
+ resource=resource,
+ scope=scope,
+ dropped_attributes_count=_int(data.get("droppedAttributesCount")),
+ )
+
+
+_SEVERITY_NAMES = {
+ f"SEVERITY_NUMBER_{name}{suffix}": base + i
+ for base, name in ((1, "TRACE"), (5, "DEBUG"), (9, "INFO"), (13, "WARN"), (17, "ERROR"), (21, "FATAL"))
+ for i, suffix in enumerate(("", "2", "3", "4"))
+}
+
+
+def _severity(value: Any) -> int | None:
+ if isinstance(value, str) and not value.isdigit():
+ return _SEVERITY_NAMES.get(value)
+ return _opt_int(value)
+
+
+_PROTO_NAME_ROOTS = ("resource_spans", "resource_logs")
+
+
+def _camel(name: str) -> str:
+ head, *rest = name.split("_")
+ return head + "".join(part[:1].upper() + part[1:] for part in rest)
+
+
+def proto_names_to_json(data: Any) -> Any:
+ """Rename protobuf field names (``resource_spans``, ``trace_id``) to their OTLP/JSON spelling, in place.
+
+ protojson with proto names (Go ``UseProtoNames``) writes them and the Collector reads both.
+ Only documents rooted at ``resource_spans`` / ``resource_logs`` are touched. Keys of dict valued
+ ``attributes`` are attribute names and are kept as they are. Iterative, so nesting depth is no
+ concern.
+ """
+ if not isinstance(data, dict) or not any(k in data for k in _PROTO_NAME_ROOTS):
+ return data
+ stack: list[Any] = [data]
+ while stack:
+ item = stack.pop()
+ if isinstance(item, dict):
+ for key in [k for k in item if isinstance(k, str) and "_" in k]:
+ item[_camel(key)] = item.pop(key)
+ for key, value in item.items():
+ if isinstance(value, (dict, list)) and not (key == "attributes" and isinstance(value, dict)):
+ stack.append(value)
+ else:
+ stack.extend(v for v in item if isinstance(v, (dict, list)))
+ return data
+
+
+def is_otlp_document(data: Any) -> bool:
+ if not isinstance(data, Mapping):
+ return False
+ if any(k in data for k in ("resourceSpans", "resourceLogs", "batches", *_PROTO_NAME_ROOTS)):
+ return True
+ inner = data.get("trace")
+ return isinstance(inner, Mapping) and ("resourceSpans" in inner or "batches" in inner)
+
+
+def decode_json_document(data: Any, *, strict: bool) -> DecodeResult:
+ """Decode an OTLP/JSON export document (traces, logs, or both)."""
+ result = DecodeResult()
+ if not isinstance(data, Mapping):
+ return result
+ data = proto_names_to_json(data)
+ inner = data.get("trace")
+ if isinstance(inner, Mapping) and ("resourceSpans" in inner or "batches" in inner):
+ data = inner
+
+ resource_spans = data.get("resourceSpans") or data.get("batches") or []
+ for rs in resource_spans if isinstance(resource_spans, list) else []:
+ if not isinstance(rs, Mapping):
+ continue
+ resource = _resource_from_json(rs.get("resource"), rs.get("schemaUrl"), result)
+ scope_spans = rs.get("scopeSpans") or rs.get("instrumentationLibrarySpans") or []
+ for ss in scope_spans if isinstance(scope_spans, list) else []:
+ if not isinstance(ss, Mapping):
+ continue
+ scope = _scope_from_json(ss.get("scope") or ss.get("instrumentationLibrary"), ss.get("schemaUrl"), result)
+ for sp in ss.get("spans") or []:
+ span = span_from_json(sp, resource, scope, strict, result)
+ if span is not None:
+ result.spans.append(span)
+
+ resource_logs = data.get("resourceLogs") or []
+ for rl in resource_logs if isinstance(resource_logs, list) else []:
+ if not isinstance(rl, Mapping):
+ continue
+ resource = _resource_from_json(rl.get("resource"), rl.get("schemaUrl"), result)
+ scope_logs = rl.get("scopeLogs") or rl.get("instrumentationLibraryLogs") or []
+ for sl in scope_logs if isinstance(scope_logs, list) else []:
+ if not isinstance(sl, Mapping):
+ continue
+ scope = _scope_from_json(sl.get("scope") or sl.get("instrumentationLibrary"), sl.get("schemaUrl"), result)
+ for lr in sl.get("logRecords") or []:
+ log = log_from_json(lr, resource, scope, strict, result)
+ if log is not None:
+ result.logs.append(log)
+ return result
+
+
+def decode_bare_spans_json(items: Iterable[Any], *, strict: bool) -> DecodeResult:
+ """Spans without a resource envelope (one OTLP span object per line)."""
+ result = DecodeResult()
+ for item in items:
+ span = span_from_json(item, EMPTY_RESOURCE, EMPTY_SCOPE, strict, result)
+ if span is not None:
+ result.spans.append(span)
+ return result
+
+
+# ---------------------------------------------------------------- protobuf
+
+
+def any_value_from_proto(av: Any, result: DecodeResult, depth: int = 0) -> Any:
+ if depth > MAX_ANY_VALUE_DEPTH:
+ result.warn("value nested deeper than the decoder limit was dropped")
+ return None
+ which = av.WhichOneof("value")
+ if which is None:
+ return None
+ if which == "string_value":
+ return av.string_value
+ if which == "bool_value":
+ return av.bool_value
+ if which == "int_value":
+ return av.int_value
+ if which == "double_value":
+ return av.double_value
+ if which == "bytes_value":
+ return bytes(av.bytes_value)
+ if which == "array_value":
+ return [any_value_from_proto(v, result, depth + 1) for v in av.array_value.values]
+ if which == "kvlist_value":
+ return {kv.key: any_value_from_proto(kv.value, result, depth + 1) for kv in av.kvlist_value.values}
+ return None
+
+
+def attributes_from_proto(kvs: Iterable[Any], result: DecodeResult) -> Mapping[str, Any]:
+ out = {}
+ for kv in kvs:
+ if kv.value.WhichOneof("value") is None:
+ continue
+ out[kv.key] = any_value_from_proto(kv.value, result)
+ return _frozen(out)
+
+
+def _resource_from_proto(rs: Any, result: DecodeResult) -> Resource:
+ attrs = attributes_from_proto(rs.resource.attributes, result)
+ schema_url = rs.schema_url or None
+ dropped = rs.resource.dropped_attributes_count
+ if not attrs and not schema_url and not dropped:
+ return EMPTY_RESOURCE
+ return Resource(attributes=attrs, schema_url=schema_url, dropped_attributes_count=dropped)
+
+
+def _scope_from_proto(ss: Any, result: DecodeResult) -> Scope:
+ sc = ss.scope
+ attrs = attributes_from_proto(sc.attributes, result)
+ if not sc.name and not sc.version and not attrs and not ss.schema_url and not sc.dropped_attributes_count:
+ return EMPTY_SCOPE
+ return Scope(
+ name=sc.name,
+ version=sc.version or None,
+ schema_url=ss.schema_url or None,
+ attributes=attrs,
+ dropped_attributes_count=sc.dropped_attributes_count,
+ )
+
+
+def decode_traces_proto(request: Any) -> DecodeResult:
+ """Decode an ``ExportTraceServiceRequest``. Always strict: protobuf only arrives on receivers."""
+ result = DecodeResult()
+ for rs in request.resource_spans:
+ resource = _resource_from_proto(rs, result)
+ for ss in rs.scope_spans:
+ scope = _scope_from_proto(ss, result)
+ for sp in ss.spans:
+ trace_id = normalize_id(sp.trace_id, TRACE_ID_BYTES, True, result, "trace id")
+ span_id = normalize_id(sp.span_id, SPAN_ID_BYTES, True, result, "span id")
+ if trace_id is None or span_id is None:
+ result.reject_span("span(s) rejected: invalid trace or span id")
+ continue
+ parent_id = (
+ normalize_id(sp.parent_span_id, SPAN_ID_BYTES, True, result, "parent span id")
+ if sp.parent_span_id
+ else None
+ )
+ if sp.parent_span_id and parent_id is None:
+ result.warn("invalid parent span id ignored")
+ links = []
+ for ln in sp.links:
+ lt = normalize_id(ln.trace_id, TRACE_ID_BYTES, True, result, "link trace id")
+ ls = normalize_id(ln.span_id, SPAN_ID_BYTES, True, result, "link span id")
+ if lt is None or ls is None:
+ result.warn("link with invalid ids dropped")
+ continue
+ links.append(
+ SpanLink(
+ lt,
+ ls,
+ ln.trace_state or None,
+ attributes_from_proto(ln.attributes, result),
+ ln.flags or None,
+ ln.dropped_attributes_count,
+ )
+ )
+ result.spans.append(
+ Span(
+ trace_id=trace_id,
+ span_id=span_id,
+ parent_span_id=parent_id,
+ name=sp.name,
+ kind=int(sp.kind),
+ start_time_unix_nano=sp.start_time_unix_nano,
+ end_time_unix_nano=sp.end_time_unix_nano,
+ attributes=attributes_from_proto(sp.attributes, result),
+ status_code=int(sp.status.code),
+ status_message=sp.status.message or None,
+ events=tuple(
+ SpanEvent(
+ ev.name,
+ ev.time_unix_nano,
+ attributes_from_proto(ev.attributes, result),
+ ev.dropped_attributes_count,
+ )
+ for ev in sp.events
+ ),
+ links=tuple(links),
+ trace_state=sp.trace_state or None,
+ flags=sp.flags or None,
+ resource=resource,
+ scope=scope,
+ dropped_attributes_count=sp.dropped_attributes_count,
+ dropped_events_count=sp.dropped_events_count,
+ dropped_links_count=sp.dropped_links_count,
+ )
+ )
+ return result
+
+
+def decode_logs_proto(request: Any) -> DecodeResult:
+ """Decode an ``ExportLogsServiceRequest``. Always strict."""
+ result = DecodeResult()
+ for rl in request.resource_logs:
+ resource = _resource_from_proto(rl, result)
+ for sl in rl.scope_logs:
+ scope = _scope_from_proto(sl, result)
+ for lr in sl.log_records:
+ trace_id = normalize_id(lr.trace_id, TRACE_ID_BYTES, True, result, "trace id") if lr.trace_id else None
+ span_id = normalize_id(lr.span_id, SPAN_ID_BYTES, True, result, "span id") if lr.span_id else None
+ if (lr.trace_id and trace_id is None) or (lr.span_id and span_id is None):
+ result.reject_log("log record(s) rejected: invalid trace or span id")
+ continue
+ attributes = attributes_from_proto(lr.attributes, result)
+ result.logs.append(
+ LogRecord(
+ time_unix_nano=lr.time_unix_nano or None,
+ observed_time_unix_nano=lr.observed_time_unix_nano or None,
+ event_name=resolve_event_name(getattr(lr, "event_name", ""), attributes),
+ severity_number=int(lr.severity_number) or None,
+ severity_text=lr.severity_text or None,
+ body=any_value_from_proto(lr.body, result) if lr.HasField("body") else None,
+ attributes=attributes,
+ trace_id=trace_id,
+ span_id=span_id if trace_id else None,
+ flags=lr.flags or None,
+ resource=resource,
+ scope=scope,
+ dropped_attributes_count=lr.dropped_attributes_count,
+ )
+ )
+ return result
diff --git a/src/agentevals/otel/encode.py b/src/agentevals/otel/encode.py
new file mode 100644
index 00000000..036cebc3
--- /dev/null
+++ b/src/agentevals/otel/encode.py
@@ -0,0 +1,190 @@
+"""Encode envelopes back to OTLP/JSON.
+
+Used for session export and debug bundles. Spans and logs are grouped under the resource and
+scope objects they were decoded with, and every id is written as decoded: the raw
+``parentSpanId`` is kept even when the derived tree broke that link.
+"""
+
+from __future__ import annotations
+
+import base64
+from collections.abc import Iterable, Mapping
+from typing import Any
+
+from .model import LogRecord, Resource, Scope, Span, Trace
+
+
+def any_value_to_json(value: Any) -> dict:
+ if isinstance(value, bool):
+ return {"boolValue": value}
+ if isinstance(value, int):
+ return {"intValue": str(value)}
+ if isinstance(value, float):
+ return {"doubleValue": value}
+ if isinstance(value, str):
+ return {"stringValue": value}
+ if isinstance(value, (bytes, bytearray)):
+ return {"bytesValue": base64.b64encode(bytes(value)).decode("ascii")}
+ if isinstance(value, (list, tuple)):
+ return {"arrayValue": {"values": [any_value_to_json(v) for v in value]}}
+ if isinstance(value, Mapping):
+ return {"kvlistValue": {"values": [{"key": str(k), "value": any_value_to_json(v)} for k, v in value.items()]}}
+ return {}
+
+
+def attributes_to_json(attrs: Mapping[str, Any]) -> list[dict]:
+ return [{"key": k, "value": any_value_to_json(v)} for k, v in attrs.items()]
+
+
+def _dropped(out: dict, **counts: int) -> dict:
+ """Write non zero ``dropped*Count`` fields, the producer's only sign that it truncated something."""
+ for name, value in counts.items():
+ if value:
+ out[name] = value
+ return out
+
+
+def _resource_json(resource: Resource) -> dict:
+ return _dropped(
+ {"attributes": attributes_to_json(resource.attributes)},
+ droppedAttributesCount=resource.dropped_attributes_count,
+ )
+
+
+def _scope_json(scope: Scope) -> dict:
+ out: dict[str, Any] = {"name": scope.name}
+ if scope.version:
+ out["version"] = scope.version
+ if scope.attributes:
+ out["attributes"] = attributes_to_json(scope.attributes)
+ return _dropped(out, droppedAttributesCount=scope.dropped_attributes_count)
+
+
+def span_to_json(span: Span) -> dict:
+ out: dict[str, Any] = {
+ "traceId": span.trace_id,
+ "spanId": span.span_id,
+ "name": span.name,
+ "kind": span.kind,
+ "startTimeUnixNano": str(span.start_time_unix_nano),
+ "endTimeUnixNano": str(span.end_time_unix_nano),
+ "attributes": attributes_to_json(span.attributes),
+ }
+ if span.parent_span_id:
+ out["parentSpanId"] = span.parent_span_id
+ if span.trace_state:
+ out["traceState"] = span.trace_state
+ if span.flags is not None:
+ out["flags"] = span.flags
+ if span.events:
+ out["events"] = [
+ _dropped(
+ {"name": e.name, "timeUnixNano": str(e.time_unix_nano), "attributes": attributes_to_json(e.attributes)},
+ droppedAttributesCount=e.dropped_attributes_count,
+ )
+ for e in span.events
+ ]
+ if span.links:
+ links = []
+ for link in span.links:
+ item: dict[str, Any] = {
+ "traceId": link.trace_id,
+ "spanId": link.span_id,
+ "attributes": attributes_to_json(link.attributes),
+ }
+ if link.trace_state:
+ item["traceState"] = link.trace_state
+ if link.flags is not None:
+ item["flags"] = link.flags
+ links.append(_dropped(item, droppedAttributesCount=link.dropped_attributes_count))
+ out["links"] = links
+ if span.status_code or span.status_message:
+ status: dict[str, Any] = {"code": span.status_code}
+ if span.status_message:
+ status["message"] = span.status_message
+ out["status"] = status
+ return _dropped(
+ out,
+ droppedAttributesCount=span.dropped_attributes_count,
+ droppedEventsCount=span.dropped_events_count,
+ droppedLinksCount=span.dropped_links_count,
+ )
+
+
+def log_to_json(log: LogRecord) -> dict:
+ out: dict[str, Any] = {"attributes": attributes_to_json(log.attributes)}
+ if log.time_unix_nano is not None:
+ out["timeUnixNano"] = str(log.time_unix_nano)
+ if log.observed_time_unix_nano is not None:
+ out["observedTimeUnixNano"] = str(log.observed_time_unix_nano)
+ if log.severity_number is not None:
+ out["severityNumber"] = log.severity_number
+ if log.severity_text:
+ out["severityText"] = log.severity_text
+ if log.event_name:
+ out["eventName"] = log.event_name
+ if log.body is not None:
+ out["body"] = any_value_to_json(log.body)
+ if log.trace_id:
+ out["traceId"] = log.trace_id
+ if log.span_id:
+ out["spanId"] = log.span_id
+ if log.flags is not None:
+ out["flags"] = log.flags
+ return _dropped(out, droppedAttributesCount=log.dropped_attributes_count)
+
+
+def _group(items: Iterable[Any]) -> list[tuple[Resource, list[tuple[Scope, list[Any]]]]]:
+ """Group by the resource and scope objects items were decoded with, in first-seen order."""
+ resources: dict[int, tuple[Resource, dict[int, tuple[Scope, list[Any]]]]] = {}
+ for item in items:
+ res_entry = resources.setdefault(id(item.resource), (item.resource, {}))
+ scope_entry = res_entry[1].setdefault(id(item.scope), (item.scope, []))
+ scope_entry[1].append(item)
+ return [(res, list(scopes.values())) for res, scopes in resources.values()]
+
+
+def encode_document(spans: Iterable[Span] = (), logs: Iterable[LogRecord] = ()) -> dict:
+ """Build one OTLP/JSON document holding ``resourceSpans`` and ``resourceLogs``."""
+ resource_spans = []
+ for resource, scopes in _group(spans):
+ entry: dict[str, Any] = {
+ "resource": _resource_json(resource),
+ "scopeSpans": [],
+ }
+ if resource.schema_url:
+ entry["schemaUrl"] = resource.schema_url
+ for scope, items in scopes:
+ scope_entry: dict[str, Any] = {"scope": _scope_json(scope), "spans": [span_to_json(s) for s in items]}
+ if scope.schema_url:
+ scope_entry["schemaUrl"] = scope.schema_url
+ entry["scopeSpans"].append(scope_entry)
+ resource_spans.append(entry)
+
+ resource_logs = []
+ for resource, scopes in _group(logs):
+ entry = {"resource": _resource_json(resource), "scopeLogs": []}
+ if resource.schema_url:
+ entry["schemaUrl"] = resource.schema_url
+ for scope, items in scopes:
+ scope_entry = {"scope": _scope_json(scope), "logRecords": [log_to_json(r) for r in items]}
+ if scope.schema_url:
+ scope_entry["schemaUrl"] = scope.schema_url
+ entry["scopeLogs"].append(scope_entry)
+ resource_logs.append(entry)
+
+ doc: dict[str, Any] = {"resourceSpans": resource_spans}
+ if resource_logs:
+ doc["resourceLogs"] = resource_logs
+ return doc
+
+
+def encode_traces(traces: Iterable[Trace], extra_logs: Iterable[LogRecord] = ()) -> dict:
+ """Encode traces with every joined and orphan log they hold."""
+ traces = list(traces)
+ spans = [s for t in traces for s in t.spans.values()]
+ logs = [r for t in traces for recs in t.logs.values() for r in recs]
+ logs += [r for t in traces for r in t.orphan_logs]
+ logs += list(extra_logs)
+ logs.sort(key=lambda r: r.time_unix_nano or r.observed_time_unix_nano or 0)
+ return encode_document(spans, logs)
diff --git a/src/agentevals/otel/identity.py b/src/agentevals/otel/identity.py
new file mode 100644
index 00000000..04538476
--- /dev/null
+++ b/src/agentevals/otel/identity.py
@@ -0,0 +1,30 @@
+"""Resource attributes agentevals reads to route telemetry into sessions.
+
+``agentevals.session_name`` names a session (reruns of a finished name become ``name-2``).
+``agentevals.session.run_id`` separates runs that reuse a name; only the SDK sets it.
+``agentevals.eval_set_id`` and ``agentevals.metadata.*`` are shown with the session.
+"""
+
+from __future__ import annotations
+
+from typing import Any
+
+SESSION_NAME = "agentevals.session_name"
+SESSION_RUN_ID = "agentevals.session.run_id"
+EVAL_SET_ID = "agentevals.eval_set_id"
+METADATA_PREFIX = "agentevals.metadata."
+
+# Instrumentation scope of the evaluation result records agentevals emits.
+EMITTER_SCOPE = "agentevals"
+
+MAX_KEY_LENGTH = 256
+
+
+def coerce_key(value: Any) -> str | None:
+ """A usable identity value: scalar, printable, at most 256 characters; otherwise ``None``."""
+ if isinstance(value, bool) or not isinstance(value, (str, int, float)):
+ return None
+ text = str(value).strip()
+ if not text or len(text) > MAX_KEY_LENGTH or not text.isprintable():
+ return None
+ return text
diff --git a/src/agentevals/otel/model.py b/src/agentevals/otel/model.py
new file mode 100644
index 00000000..3337b5da
--- /dev/null
+++ b/src/agentevals/otel/model.py
@@ -0,0 +1,350 @@
+"""Lossless envelope model for OpenTelemetry data.
+
+These types mirror OTLP closely enough that a document decoded into them and encoded back
+round-trips. Ids and attributes are never rewritten. Anything derived (the span tree, joined
+logs, cycle breaking) lives on :class:`Trace` as indexes, so spans themselves stay immutable
+and a trace can be snapshotted by copying its dicts.
+
+Attribute values are decoded OTLP ``AnyValue``: ``str``, ``bool``, ``int``, ``float``,
+``bytes``, ``list`` or ``dict`` (nested to the decoder's depth limit).
+"""
+
+from __future__ import annotations
+
+import json
+from collections.abc import Iterable, Mapping
+from dataclasses import dataclass, field
+from types import MappingProxyType
+from typing import Any
+
+EMPTY_ATTRS: Mapping[str, Any] = MappingProxyType({})
+
+
+def _empty_attrs() -> Mapping[str, Any]:
+ return EMPTY_ATTRS
+
+
+(
+ SPAN_KIND_UNSPECIFIED,
+ SPAN_KIND_INTERNAL,
+ SPAN_KIND_SERVER,
+ SPAN_KIND_CLIENT,
+ SPAN_KIND_PRODUCER,
+ SPAN_KIND_CONSUMER,
+) = range(6)
+STATUS_UNSET, STATUS_OK, STATUS_ERROR = 0, 1, 2
+
+# W3C trace flags bits carried on OTLP spans (proto field `flags`): bit 8 says the
+# parent-is-remote bit is known, bit 9 says the parent is remote.
+FLAG_HAS_IS_REMOTE = 0x100
+FLAG_IS_REMOTE = 0x200
+
+MAX_JSON_PARSE_BYTES = 4 * 1024 * 1024
+
+
+@dataclass(frozen=True, slots=True)
+class SpanRef:
+ trace_id: str
+ span_id: str
+
+
+@dataclass(frozen=True, slots=True)
+class Resource:
+ attributes: Mapping[str, Any] = field(default_factory=_empty_attrs)
+ schema_url: str | None = None
+ dropped_attributes_count: int = 0
+
+
+@dataclass(frozen=True, slots=True)
+class Scope:
+ name: str = ""
+ version: str | None = None
+ schema_url: str | None = None
+ attributes: Mapping[str, Any] = field(default_factory=_empty_attrs)
+ dropped_attributes_count: int = 0
+
+
+EMPTY_RESOURCE = Resource()
+EMPTY_SCOPE = Scope()
+
+
+@dataclass(frozen=True, slots=True)
+class SpanEvent:
+ name: str
+ time_unix_nano: int
+ attributes: Mapping[str, Any] = field(default_factory=_empty_attrs)
+ dropped_attributes_count: int = 0
+
+
+@dataclass(frozen=True, slots=True)
+class SpanLink:
+ trace_id: str
+ span_id: str
+ trace_state: str | None = None
+ attributes: Mapping[str, Any] = field(default_factory=_empty_attrs)
+ flags: int | None = None
+ dropped_attributes_count: int = 0
+
+
+@dataclass(frozen=True, slots=True)
+class LogRecord:
+ time_unix_nano: int | None
+ observed_time_unix_nano: int | None
+ event_name: str | None
+ severity_number: int | None
+ severity_text: str | None
+ body: Any
+ attributes: Mapping[str, Any]
+ trace_id: str | None
+ span_id: str | None
+ flags: int | None
+ resource: Resource
+ scope: Scope
+ dropped_attributes_count: int = 0
+
+ @property
+ def ref(self) -> SpanRef | None:
+ if self.trace_id and self.span_id:
+ return SpanRef(self.trace_id, self.span_id)
+ return None
+
+
+@dataclass(frozen=True, slots=True)
+class Span:
+ trace_id: str
+ span_id: str
+ parent_span_id: str | None
+ name: str
+ kind: int
+ start_time_unix_nano: int
+ end_time_unix_nano: int
+ attributes: Mapping[str, Any]
+ status_code: int = STATUS_UNSET
+ status_message: str | None = None
+ events: tuple[SpanEvent, ...] = ()
+ links: tuple[SpanLink, ...] = ()
+ trace_state: str | None = None
+ flags: int | None = None
+ resource: Resource = EMPTY_RESOURCE
+ scope: Scope = EMPTY_SCOPE
+ dropped_attributes_count: int = 0
+ dropped_events_count: int = 0
+ dropped_links_count: int = 0
+
+ @property
+ def ref(self) -> SpanRef:
+ return SpanRef(self.trace_id, self.span_id)
+
+ @property
+ def has_remote_parent(self) -> bool:
+ return self.flags is not None and self.flags & (FLAG_HAS_IS_REMOTE | FLAG_IS_REMOTE) == (
+ FLAG_HAS_IS_REMOTE | FLAG_IS_REMOTE
+ )
+
+ @property
+ def duration_unix_nano(self) -> int:
+ return max(0, self.end_time_unix_nano - self.start_time_unix_nano)
+
+
+@dataclass(slots=True)
+class Trace:
+ """Spans of one trace plus derived indexes.
+
+ ``parents`` holds the effective parent used for the tree: the raw ``parent_span_id``
+ unless that parent is absent from the trace or the link was broken to resolve a cycle.
+ """
+
+ trace_id: str
+ spans: dict[str, Span] = field(default_factory=dict)
+ parents: dict[str, str | None] = field(default_factory=dict)
+ children: dict[str, list[str]] = field(default_factory=dict)
+ roots: list[str] = field(default_factory=list)
+ logs: dict[str, list[LogRecord]] = field(default_factory=dict)
+ orphan_logs: list[LogRecord] = field(default_factory=list)
+ warnings: list[str] = field(default_factory=list)
+
+ def root_spans(self) -> list[Span]:
+ return [self.spans[s] for s in self.roots]
+
+ def children_of(self, span: Span | str) -> list[Span]:
+ span_id = span if isinstance(span, str) else span.span_id
+ return [self.spans[c] for c in self.children.get(span_id, ())]
+
+ def parent_of(self, span: Span | str) -> Span | None:
+ span_id = span if isinstance(span, str) else span.span_id
+ parent = self.parents.get(span_id)
+ return self.spans.get(parent) if parent else None
+
+ def logs_of(self, span: Span | str) -> list[LogRecord]:
+ span_id = span if isinstance(span, str) else span.span_id
+ return self.logs.get(span_id, [])
+
+ def ancestors(self, span: Span | str) -> list[Span]:
+ """Nearest first. Terminates because the effective parent graph is acyclic."""
+ out = []
+ current = self.parent_of(span)
+ while current is not None:
+ out.append(current)
+ current = self.parent_of(current)
+ return out
+
+ def walk(self, start: Span | str | None = None) -> list[Span]:
+ """Depth first, children in start-time order. Iterative."""
+ if start is None:
+ stack = list(reversed(self.roots))
+ else:
+ stack = [start if isinstance(start, str) else start.span_id]
+ out = []
+ while stack:
+ span_id = stack.pop()
+ out.append(self.spans[span_id])
+ stack.extend(reversed(self.children.get(span_id, ())))
+ return out
+
+ @property
+ def start_time_unix_nano(self) -> int:
+ return min((s.start_time_unix_nano for s in self.spans.values()), default=0)
+
+
+def attr_str(attrs: Mapping[str, Any], key: str) -> str | None:
+ value = attrs.get(key)
+ if isinstance(value, str):
+ return value
+ if isinstance(value, (bool, int, float)):
+ return str(value)
+ return None
+
+
+def attr_int(attrs: Mapping[str, Any], key: str) -> int | None:
+ value = attrs.get(key)
+ if isinstance(value, bool):
+ return None
+ if isinstance(value, int):
+ return value
+ if isinstance(value, float) and value.is_integer():
+ return int(value)
+ if isinstance(value, str):
+ try:
+ return int(value)
+ except ValueError:
+ return None
+ return None
+
+
+def attr_float(attrs: Mapping[str, Any], key: str) -> float | None:
+ value = attrs.get(key)
+ if isinstance(value, bool):
+ return None
+ if isinstance(value, (int, float)):
+ return float(value)
+ if isinstance(value, str):
+ try:
+ return float(value)
+ except ValueError:
+ return None
+ return None
+
+
+def parse_json_value(value: Any) -> Any:
+ """Structured values pass through; strings are parsed as JSON within a size cap.
+
+ Returns ``None`` for anything that cannot be parsed. Never raises.
+ """
+ if value is None or isinstance(value, (dict, list, bool, int, float)):
+ return value
+ if isinstance(value, bytes):
+ return None
+ if not isinstance(value, str) or len(value) > MAX_JSON_PARSE_BYTES:
+ return None
+ try:
+ return json.loads(value)
+ except (ValueError, RecursionError):
+ return None
+
+
+def attr_json(attrs: Mapping[str, Any], key: str) -> Any:
+ return parse_json_value(attrs.get(key))
+
+
+def _order_key(span: Span) -> tuple[int, str]:
+ return (span.start_time_unix_nano, span.span_id)
+
+
+def _link_tree(trace: Trace) -> None:
+ """Derive effective parents, children and roots. Never mutates spans.
+
+ A parent outside the trace leaves the span a root. A self parent becomes a root. In a
+ cycle, the member that started first (ties: lowest span id) becomes a root, so the result
+ does not depend on arrival order. Each break is recorded in ``trace.warnings``.
+ """
+ spans = trace.spans
+ parents: dict[str, str | None] = {}
+ for span_id, span in spans.items():
+ parent = span.parent_span_id
+ if parent == span_id:
+ trace.warnings.append(f"span {span_id} names itself as parent; treated as a root")
+ parent = None
+ parents[span_id] = parent if parent in spans else None
+
+ state: dict[str, int] = {}
+ for start in spans:
+ if state.get(start):
+ continue
+ path: list[str] = []
+ on_path: dict[str, int] = {}
+ node: str | None = start
+ while node is not None and not state.get(node):
+ if node in on_path:
+ cycle = path[on_path[node] :]
+ root = min(cycle, key=lambda s: _order_key(spans[s]))
+ parents[root] = None
+ trace.warnings.append(f"parent cycle through {len(cycle)} spans broken at {root}")
+ break
+ on_path[node] = len(path)
+ path.append(node)
+ node = parents[node]
+ for visited in path:
+ state[visited] = 1
+
+ children: dict[str, list[str]] = {}
+ roots: list[str] = []
+ for span_id, parent in parents.items():
+ if parent is None:
+ roots.append(span_id)
+ else:
+ children.setdefault(parent, []).append(span_id)
+ for kids in children.values():
+ kids.sort(key=lambda s: _order_key(spans[s]))
+ roots.sort(key=lambda s: _order_key(spans[s]))
+ trace.parents, trace.children, trace.roots = parents, children, roots
+
+
+def build_traces(spans: Iterable[Span], logs: Iterable[LogRecord] = ()) -> tuple[list[Trace], list[LogRecord]]:
+ """Group spans into traces and join logs to spans by (trace_id, span_id).
+
+ Returns the traces in first-seen order and the logs that belong to no trace in this batch
+ (no trace context, or a trace with no spans here). For a duplicated span id the first copy
+ wins, which is what an exporter retry needs.
+ """
+ traces: dict[str, Trace] = {}
+ for span in spans:
+ trace = traces.get(span.trace_id)
+ if trace is None:
+ trace = traces[span.trace_id] = Trace(trace_id=span.trace_id)
+ if span.span_id in trace.spans:
+ trace.warnings.append(f"duplicate span {span.span_id} ignored")
+ continue
+ trace.spans[span.span_id] = span
+ for trace in traces.values():
+ _link_tree(trace)
+
+ unattributed: list[LogRecord] = []
+ for log in logs:
+ trace = traces.get(log.trace_id) if log.trace_id else None
+ if trace is None:
+ unattributed.append(log)
+ elif log.span_id and log.span_id in trace.spans:
+ trace.logs.setdefault(log.span_id, []).append(log)
+ else:
+ trace.orphan_logs.append(log)
+ return list(traces.values()), unattributed
diff --git a/src/agentevals/otel/sdk_export.py b/src/agentevals/otel/sdk_export.py
new file mode 100644
index 00000000..01610700
--- /dev/null
+++ b/src/agentevals/otel/sdk_export.py
@@ -0,0 +1,353 @@
+"""OTLP export of SDK sessions to the agentevals receiver, isolated from the application's pipeline.
+
+Sessions run one after another on a shared ``TracerProvider`` whose resource is fixed, so the
+session cannot live on the provider resource. Instead one :class:`SessionSpanProcessor` per
+provider decides which session a span belongs to when it starts, and when it ends forwards a copy
+whose resource carries the session identity (``agentevals.session_name``,
+``agentevals.eval_set_id``, ``agentevals.session.run_id``, ``agentevals.metadata.*``) to its own
+OTLP exporter. Spans outside every session are not exported, and the application's own
+exporters never see these attributes. Baggage is not used, because it would propagate into
+outbound requests.
+
+The exporters are built with an explicit endpoint, explicit headers, an explicit session and
+gzip, and never read ``OTEL_EXPORTER_OTLP_*``: the OTLP exporters fall back to those variables for
+anything left unset, which would send the application's backend credentials to agentevals.
+"""
+
+from __future__ import annotations
+
+import atexit
+import contextvars
+import logging
+import os
+import threading
+import warnings
+import weakref
+from collections import OrderedDict
+from collections.abc import Mapping
+from dataclasses import dataclass, field
+from typing import Any
+from urllib.parse import urlsplit, urlunsplit
+
+from opentelemetry.sdk._logs import LogRecordProcessor
+from opentelemetry.sdk.trace import SpanProcessor
+
+from .identity import EVAL_SET_ID, METADATA_PREFIX, SESSION_NAME, SESSION_RUN_ID
+
+logger = logging.getLogger(__name__)
+
+DEFAULT_ENDPOINT = "http://localhost:4318"
+ENDPOINT_ENV = "AGENTEVALS_OTLP_ENDPOINT"
+LEGACY_WS_URL = "ws://localhost:8001/ws/traces"
+TRACE_MAP_SIZE = 10_000
+FLUSH_TIMEOUT_MILLIS = 5_000
+PREFLIGHT_TIMEOUT_SECONDS = 2.0
+EXPORT_TIMEOUT_SECONDS = 10.0
+_SDK_HEADER = {"x-agentevals-sdk": "1"}
+
+
+@dataclass(frozen=True, slots=True)
+class SessionContext:
+ name: str
+ run_id: str
+ eval_set_id: str | None = None
+ metadata: Mapping[str, Any] = field(default_factory=dict)
+
+ def resource_attributes(self) -> dict[str, Any]:
+ attrs: dict[str, Any] = {SESSION_NAME: self.name, SESSION_RUN_ID: self.run_id}
+ if self.eval_set_id:
+ attrs[EVAL_SET_ID] = self.eval_set_id
+ for key, value in self.metadata.items():
+ attrs[f"{METADATA_PREFIX}{key}"] = _attribute_value(value)
+ return attrs
+
+
+def _attribute_value(value: Any) -> Any:
+ if isinstance(value, (str, bool, int, float)):
+ return value
+ if isinstance(value, (list, tuple)) and all(isinstance(v, (str, bool, int, float)) for v in value):
+ return list(value)
+ return str(value)
+
+
+_current: contextvars.ContextVar[SessionContext | None] = contextvars.ContextVar("agentevals_session", default=None)
+
+
+class _Registry:
+ """Active sessions and the trace to session map, shared by every processor in the process."""
+
+ def __init__(self) -> None:
+ self._lock = threading.Lock()
+ self._active: dict[str, SessionContext] = {}
+ self._traces: OrderedDict[int, SessionContext] = OrderedDict()
+
+ def activate(self, session: SessionContext) -> None:
+ with self._lock:
+ self._active[session.run_id] = session
+
+ def deactivate(self, session: SessionContext) -> None:
+ with self._lock:
+ self._active.pop(session.run_id, None)
+
+ def resolve(self, trace_id: int) -> SessionContext | None:
+ """The contextvar session, else the trace's session, else the only active session."""
+ session = _current.get()
+ with self._lock:
+ if session is None:
+ session = self._traces.get(trace_id)
+ if session is None and len(self._active) == 1:
+ session = next(iter(self._active.values()))
+ if session is not None:
+ self._traces[trace_id] = session
+ self._traces.move_to_end(trace_id)
+ while len(self._traces) > TRACE_MAP_SIZE:
+ self._traces.popitem(last=False)
+ return session
+
+ def of_trace(self, trace_id: int) -> SessionContext | None:
+ with self._lock:
+ return self._traces.get(trace_id)
+
+
+registry = _Registry()
+
+
+def resolve_endpoint(endpoint: str | None = None, ws_url: str | None = None) -> str:
+ """``endpoint``, then ``AGENTEVALS_OTLP_ENDPOINT``, then a non default ``ws_url`` mapped to
+ OTLP/HTTP on port 4318 (deprecated), then ``http://localhost:4318``."""
+ if endpoint:
+ return endpoint.rstrip("/")
+ from_env = os.environ.get(ENDPOINT_ENV)
+ if from_env:
+ return from_env.rstrip("/")
+ if ws_url and ws_url != LEGACY_WS_URL:
+ warnings.warn(
+ "ws_url is deprecated: agentevals now receives OTLP. Pass endpoint='http://host:4318' instead.",
+ DeprecationWarning,
+ stacklevel=3,
+ )
+ parts = urlsplit(ws_url)
+ scheme = "https" if parts.scheme == "wss" else "http"
+ return urlunsplit((scheme, f"{parts.hostname or 'localhost'}:4318", "", "", ""))
+ return DEFAULT_ENDPOINT
+
+
+def _isolated(exporter: Any) -> Any:
+ """Never present the application's TLS client identity, which the exporter reads from the
+ environment when it is not passed explicitly."""
+ for attr in ("_client_key_file", "_client_certificate_file"):
+ if hasattr(exporter, attr):
+ setattr(exporter, attr, None)
+ return exporter
+
+
+def _http_session() -> Any:
+ """A requests session that ignores ``.netrc`` and proxy variables, so nothing configured for
+ other hosts is applied to the agentevals endpoint."""
+ import requests
+
+ session = requests.Session()
+ session.trust_env = False
+ return session
+
+
+def _span_exporter(endpoint: str) -> Any:
+ from opentelemetry.exporter.otlp.proto.http import Compression
+ from opentelemetry.exporter.otlp.proto.http.trace_exporter import OTLPSpanExporter
+
+ return _isolated(
+ OTLPSpanExporter(
+ endpoint=f"{endpoint}/v1/traces",
+ headers=dict(_SDK_HEADER),
+ timeout=EXPORT_TIMEOUT_SECONDS,
+ compression=Compression.Gzip,
+ session=_http_session(),
+ )
+ )
+
+
+def _log_exporter(endpoint: str) -> Any:
+ from opentelemetry.exporter.otlp.proto.http import Compression
+ from opentelemetry.exporter.otlp.proto.http._log_exporter import OTLPLogExporter
+
+ return _isolated(
+ OTLPLogExporter(
+ endpoint=f"{endpoint}/v1/logs",
+ headers=dict(_SDK_HEADER),
+ timeout=EXPORT_TIMEOUT_SECONDS,
+ compression=Compression.Gzip,
+ session=_http_session(),
+ )
+ )
+
+
+def preflight(endpoint: str) -> None:
+ """POST an empty trace export; raise ``ConnectionError`` unless the receiver answers 200."""
+ import requests
+
+ try:
+ response = _http_session().post(
+ f"{endpoint}/v1/traces",
+ data=b"",
+ headers={"Content-Type": "application/x-protobuf", **_SDK_HEADER},
+ timeout=PREFLIGHT_TIMEOUT_SECONDS,
+ )
+ except requests.RequestException as exc:
+ raise ConnectionError(str(exc)) from exc
+ if response.status_code != 200:
+ raise ConnectionError(f"OTLP receiver at {endpoint} answered {response.status_code}")
+
+
+class SessionSpanProcessor(SpanProcessor):
+ """Assigns spans to sessions and exports a session stamped copy of each."""
+
+ def __init__(self, endpoint: str, exporter: Any | None = None):
+ from opentelemetry.sdk.trace.export import BatchSpanProcessor
+
+ self.endpoint = endpoint
+ self._batch = BatchSpanProcessor(exporter or _span_exporter(endpoint))
+ self._resources: dict[tuple[int, str], Any] = {}
+ self._lock = threading.Lock()
+
+ def on_start(self, span: Any, parent_context: Any = None) -> None:
+ context = span.get_span_context()
+ if context is not None:
+ registry.resolve(context.trace_id)
+
+ def _resource(self, base: Any, session: SessionContext) -> Any:
+ from opentelemetry.sdk.resources import Resource
+
+ key = (id(base), session.run_id)
+ with self._lock:
+ cached = self._resources.get(key)
+ if cached is None:
+ cached = (base or Resource.get_empty()).merge(Resource(session.resource_attributes()))
+ if len(self._resources) > 256:
+ self._resources.clear()
+ self._resources[key] = cached
+ return cached
+
+ def on_end(self, span: Any) -> None:
+ context = span.get_span_context()
+ session = registry.of_trace(context.trace_id) if context is not None else None
+ if session is None:
+ return
+ from opentelemetry.sdk.trace import ReadableSpan
+
+ self._batch.on_end(
+ ReadableSpan(
+ name=span.name,
+ context=span.context,
+ parent=span.parent,
+ resource=self._resource(span.resource, session),
+ attributes=span.attributes,
+ events=span.events,
+ links=span.links,
+ kind=span.kind,
+ status=span.status,
+ start_time=span.start_time,
+ end_time=span.end_time,
+ instrumentation_scope=span.instrumentation_scope,
+ )
+ )
+
+ def force_flush(self, timeout_millis: int = FLUSH_TIMEOUT_MILLIS) -> bool:
+ return self._batch.force_flush(timeout_millis)
+
+ def shutdown(self) -> None:
+ self._batch.shutdown()
+
+
+class SessionLogProcessor(LogRecordProcessor):
+ """Exports log records that belong to a session (by contextvar or trace id) to agentevals."""
+
+ def __init__(self, endpoint: str, exporter: Any | None = None):
+ from opentelemetry.sdk._logs.export import BatchLogRecordProcessor
+
+ self._batch = BatchLogRecordProcessor(exporter or _log_exporter(endpoint))
+
+ @staticmethod
+ def _trace_id(record: Any) -> int | None:
+ inner = getattr(record, "log_record", record)
+ trace_id = getattr(inner, "trace_id", None)
+ return trace_id if isinstance(trace_id, int) and trace_id else None
+
+ def on_emit(self, record: Any) -> None:
+ trace_id = self._trace_id(record)
+ if _current.get() is None and (trace_id is None or registry.of_trace(trace_id) is None):
+ return
+ self._batch.on_emit(record)
+
+ def emit(self, record: Any) -> None:
+ self.on_emit(record)
+
+ def force_flush(self, timeout_millis: int = FLUSH_TIMEOUT_MILLIS) -> bool:
+ return self._batch.force_flush(timeout_millis)
+
+ def shutdown(self) -> None:
+ self._batch.shutdown()
+
+
+@dataclass(slots=True)
+class _Export:
+ endpoint: str
+ span_processor: SessionSpanProcessor
+ log_processor: SessionLogProcessor | None
+
+
+_exports: weakref.WeakKeyDictionary = weakref.WeakKeyDictionary()
+_exports_lock = threading.Lock()
+_shutdown_registered = False
+
+
+def _shutdown_all() -> None:
+ for export in list(_exports.values()):
+ try:
+ export.span_processor.shutdown()
+ if export.log_processor is not None:
+ export.log_processor.shutdown()
+ except Exception:
+ logger.debug("agentevals exporter shutdown failed", exc_info=True)
+
+
+def install(tracer_provider: Any, endpoint: str, logger_provider: Any | None = None) -> _Export:
+ """Register the session processors on ``tracer_provider`` (once per provider and endpoint)."""
+ global _shutdown_registered
+ with _exports_lock:
+ export = _exports.get(tracer_provider)
+ if export is not None and export.endpoint == endpoint:
+ if export.log_processor is None and logger_provider is not None:
+ export.log_processor = SessionLogProcessor(endpoint)
+ logger_provider.add_log_record_processor(export.log_processor)
+ return export
+ span_processor = SessionSpanProcessor(endpoint)
+ tracer_provider.add_span_processor(span_processor)
+ log_processor = None
+ if logger_provider is not None:
+ log_processor = SessionLogProcessor(endpoint)
+ logger_provider.add_log_record_processor(log_processor)
+ export = _Export(endpoint, span_processor, log_processor)
+ _exports[tracer_provider] = export
+ if not _shutdown_registered:
+ atexit.register(_shutdown_all)
+ _shutdown_registered = True
+ return export
+
+
+def flush(export: _Export) -> None:
+ export.span_processor.force_flush(FLUSH_TIMEOUT_MILLIS)
+ if export.log_processor is not None:
+ export.log_processor.force_flush(FLUSH_TIMEOUT_MILLIS)
+
+
+def enter(session: SessionContext) -> contextvars.Token:
+ registry.activate(session)
+ return _current.set(session)
+
+
+def leave(session: SessionContext, token: contextvars.Token) -> None:
+ try:
+ _current.reset(token)
+ except ValueError:
+ _current.set(None)
+ registry.deactivate(session)
diff --git a/src/agentevals/otel/store.py b/src/agentevals/otel/store.py
new file mode 100644
index 00000000..bca681d1
--- /dev/null
+++ b/src/agentevals/otel/store.py
@@ -0,0 +1,948 @@
+"""In memory store for live telemetry: traces, sessions, routing, completion and bounds.
+
+Synchronous on purpose. Every public method applies its input as one unit with no suspension
+point, so concurrent HTTP and gRPC exports cannot interleave inside a routing decision or a cap
+check. The caller (``streaming.manager``) owns the event loop, timers and recompute; this module
+only records what happened in :attr:`TelemetryStore.events`.
+
+What the telemetry means is the :class:`RoutingPolicy`'s business (``genai.routing`` for GenAI);
+this module holds only the mechanics. Routing (``otel_native_core_202610.md`` 16.2), for spans of
+trace T with session key K from the policy:
+
+* R1, membership first: a trace already in a session stays there, with two exceptions. A session
+ that learns a stronger key from its own trace (any key, for a provisional session) is promoted
+ into the head session for that key. A trace that receives a span starting before every span it
+ holds, with a different key of the same kind, moves to that key's head: the earliest span owns
+ the trace. Spans reopen a complete session; logs never do.
+* R2, a new trace with a key joins the head session for the key. A new SDK run id starts a new
+ generation (``name-2``) at once. A complete head whose key kind splits on reruns starts a new
+ generation for a rerun: a different ``service.instance.id`` when both sides carry one, otherwise
+ a trace arriving once the head has been complete for the rerun window. Turns of one run that
+ are further apart than the completion grace therefore stay together. Heads of other key kinds
+ are always joined again.
+* R3, a new trace without a key becomes a provisional session if the policy says it opens one,
+ otherwise it is staged (not listed) until such a span or a key arrives for it.
+"""
+
+from __future__ import annotations
+
+import hashlib
+import heapq
+import time
+from collections import Counter, OrderedDict
+from collections.abc import Callable, Iterable, Mapping, Sequence
+from dataclasses import dataclass, field
+from datetime import UTC, datetime
+from typing import Any, Protocol
+
+from .identity import EVAL_SET_ID, METADATA_PREFIX, SESSION_RUN_ID, coerce_key
+from .model import LogRecord, Span
+
+SessionKey = tuple[str, str]
+
+SERVICE_INSTANCE_ID = "service.instance.id"
+
+
+class RoutingPolicy(Protocol):
+ """What the store asks about the telemetry it routes."""
+
+ rerun_kinds: frozenset[str]
+ """Key kinds whose complete sessions split into ``name-2`` on a rerun instead of rejoining."""
+
+ key_strength: Mapping[str, int]
+ """Rank of key kinds, higher wins. A session whose key is outranked by a later batch of one of
+ its traces is promoted into the head for the stronger key. Unlisted kinds rank lowest."""
+
+ def session_key(self, items: Iterable[tuple[Mapping[str, Any], Mapping[str, Any]]]) -> SessionKey | None:
+ """The key of spans or log records given as ``(attributes, resource attributes)``. Spans come
+ in start order, so the result does not depend on the order they arrived in."""
+ ...
+
+ def opens_session(self, spans: Sequence[Span]) -> bool:
+ """Whether a trace without a key is listed as a session, rather than staged."""
+ ...
+
+ def log_drop_reason(self, log: LogRecord) -> str | None:
+ """Why a log record is accepted but not stored, or ``None`` to store it."""
+ ...
+
+ def is_own_record(self, log: LogRecord) -> bool:
+ """A record agentevals emitted itself, refused so a pipeline loop cannot feed it back."""
+ ...
+
+
+REASON_TRACE_SPANS = "span(s) rejected: trace span limit reached"
+REASON_SESSION_SPANS = "span(s) rejected: session span limit reached"
+REASON_SESSION_TRACES = "span(s) rejected: session trace limit reached"
+REASON_SPAN_MEMORY = "span(s) rejected: live store memory budget exhausted"
+REASON_SPAN_SESSIONS = "span(s) rejected: session limit reached and no complete session to evict"
+REASON_MERGE_REFUSED = "span(s) rejected: target session is full, merge refused"
+REASON_TRACE_LOGS = "log record(s) rejected: trace log limit reached"
+REASON_SESSION_LOGS = "log record(s) rejected: session log limit reached"
+REASON_LOG_MEMORY = "log record(s) rejected: live store memory budget exhausted"
+REASON_LOG_SESSIONS = "log record(s) rejected: session limit reached and no complete session to evict"
+REASON_PENDING_FULL = "log record(s) rejected: pending log buffer full"
+REASON_FEEDBACK = "log record(s) rejected: evaluation result emitted by agentevals"
+
+# Refusals that may clear on their own (memory and session slots free up as sessions complete
+# and expire), so an export with any of these is answered as retryable overload. Per trace and per
+# session caps are permanent and are reported through partial success instead.
+TRANSIENT_REASONS = frozenset(
+ {
+ REASON_SPAN_MEMORY,
+ REASON_SPAN_SESSIONS,
+ REASON_LOG_MEMORY,
+ REASON_LOG_SESSIONS,
+ REASON_PENDING_FULL,
+ }
+)
+
+
+@dataclass(frozen=True, slots=True)
+class Limits:
+ spans_per_trace: int = 10_000
+ logs_per_trace: int = 5_000
+ traces_per_session: int = 1_000
+ spans_per_session: int = 50_000
+ logs_per_session: int = 20_000
+ max_sessions: int = 100
+ max_bytes: int = 1024 * 1024 * 1024
+ staged_traces: int = 1_000
+ staged_ttl_seconds: float = 120.0
+ pending_logs: int = 5_000
+ pending_logs_per_trace: int = 1_000
+ pending_log_bytes: int = 64 * 1024 * 1024
+ pending_log_ttl_seconds: float = 300.0
+ session_ttl_seconds: float = 2 * 3600.0
+ completion_grace_seconds: float = 3.0
+ idle_timeout_seconds: float = 30.0
+ rerun_window_seconds: float = 30.0
+
+
+@dataclass(slots=True)
+class IngestResult:
+ accepted: int = 0
+ rejected: int = 0
+ reasons: Counter = field(default_factory=Counter)
+ dropped: Counter = field(default_factory=Counter)
+
+ def reject(self, reason: str, n: int = 1) -> None:
+ if n:
+ self.rejected += n
+ self.reasons[reason] += n
+
+ def extend(self, other: IngestResult) -> None:
+ self.accepted += other.accepted
+ self.rejected += other.rejected
+ self.reasons.update(other.reasons)
+ self.dropped.update(other.dropped)
+
+ @property
+ def overloaded(self) -> bool:
+ """Some item was refused for a transient capacity reason. The whole export is then answered as
+ retryable: partial success would tell the client never to resend those items, and resending
+ the ones already stored is harmless because spans and logs are deduplicated."""
+ return any(r in TRANSIENT_REASONS for r in self.reasons)
+
+
+@dataclass(slots=True)
+class LiveTrace:
+ trace_id: str
+ spans: dict[str, Span] = field(default_factory=dict)
+ logs: list[LogRecord] = field(default_factory=list)
+ log_keys: set[bytes] = field(default_factory=set)
+ session_id: str | None = None
+ version: int = 0
+ nbytes: int = 0
+ has_root: bool = False
+ remote_roots: list[tuple[int, int]] = field(default_factory=list)
+ min_start: int | None = None
+ max_end: int | None = None
+ last_span_at: float | None = None
+ staged_at: float = 0.0
+ complete: bool = False
+
+ @property
+ def has_spans(self) -> bool:
+ return bool(self.spans)
+
+ def note_span(self, span: Span) -> None:
+ start, end = span.start_time_unix_nano, span.end_time_unix_nano
+ self.min_start = start if self.min_start is None else min(self.min_start, start)
+ self.max_end = end if self.max_end is None else max(self.max_end, end)
+ if not span.parent_span_id:
+ self.has_root = True
+ elif span.has_remote_parent:
+ self.remote_roots.append((start, end))
+
+ @property
+ def has_local_root(self) -> bool:
+ """A span with no parent, or a span with a remote parent that encloses every span received
+ for the trace. A remote parent span that does not is one process's share of a longer
+ trace (a backend call, a harness subprocess) and ends before the trace does."""
+ if self.has_root:
+ return True
+ return any(start <= self.min_start and end >= self.max_end for start, end in self.remote_roots)
+
+ @property
+ def start_time_unix_nano(self) -> int:
+ return min((s.start_time_unix_nano for s in self.spans.values()), default=0)
+
+
+@dataclass(slots=True)
+class LiveSession:
+ session_id: str
+ key: SessionKey | None
+ run_id: str | None = None
+ instance_id: str | None = None
+ eval_set_id: str | None = None
+ metadata: dict[str, Any] = field(default_factory=dict)
+ started_at: datetime = field(default_factory=lambda: datetime.now(UTC))
+ trace_ids: list[str] = field(default_factory=list)
+ is_complete: bool = False
+ completed_at: datetime | None = None
+ completed_mono: float | None = None
+ completed_once: bool = False
+ span_count: int = 0
+ log_count: int = 0
+ nbytes: int = 0
+ last_activity: float = 0.0
+ invocations: list[dict[str, Any]] = field(default_factory=list)
+
+ @property
+ def provisional(self) -> bool:
+ return self.key is None
+
+
+@dataclass(frozen=True, slots=True)
+class TraceSnapshot:
+ trace_id: str
+ version: int
+ spans: tuple[Span, ...]
+ logs: tuple[LogRecord, ...]
+ complete: bool
+
+
+def estimate_size(value: Any) -> int:
+ """Rough decoded size in bytes, used for the memory budget. Iterative; never raises."""
+ total = 0
+ stack = [value]
+ while stack:
+ item = stack.pop()
+ if isinstance(item, (str, bytes, bytearray)):
+ total += len(item) + 16
+ elif isinstance(item, Mapping):
+ total += 32
+ for k, v in item.items():
+ total += len(k) + 16 if isinstance(k, str) else 16
+ stack.append(v)
+ elif isinstance(item, (list, tuple)):
+ total += 16 + 8 * len(item)
+ stack.extend(item)
+ else:
+ total += 16
+ return total
+
+
+def span_size(span: Span) -> int:
+ size = 256 + len(span.name) + estimate_size(span.attributes)
+ for event in span.events:
+ size += 64 + len(event.name) + estimate_size(event.attributes)
+ for link in span.links:
+ size += 96 + estimate_size(link.attributes)
+ return size
+
+
+def log_size(log: LogRecord) -> int:
+ return 192 + estimate_size(log.body) + estimate_size(log.attributes)
+
+
+def envelope_size(items: Iterable[Span | LogRecord]) -> int:
+ """Bytes of the resources and scopes of decoded items, each distinct object once.
+
+ Every export decodes its own resource and scope objects and stored items keep them alive, so
+ large resources (Kubernetes attributes, say) count against the budget like the items do.
+ """
+ seen: set[int] = set()
+ total = 0
+ for item in items:
+ for part in (item.resource, item.scope):
+ if id(part) not in seen:
+ seen.add(id(part))
+ total += 64 + estimate_size(part.attributes)
+ return total
+
+
+def log_fingerprint(log: LogRecord) -> bytes:
+ """Identity of a log record for retry deduplication. OTLP log records carry no id, and an
+ exporter that retries after a lost response sends the same batch again."""
+ material = (
+ log.span_id,
+ log.time_unix_nano,
+ log.observed_time_unix_nano,
+ log.event_name,
+ log.severity_number,
+ log.body,
+ dict(log.attributes),
+ )
+ return hashlib.blake2b(repr(material).encode(), digest_size=16).digest()
+
+
+def session_metadata(resource_attrs: Mapping[str, Any]) -> dict[str, Any]:
+ """Resource attributes shown with the session; ``agentevals.metadata.*`` is unprefixed."""
+ out: dict[str, Any] = {}
+ for k, v in resource_attrs.items():
+ if k.startswith(METADATA_PREFIX):
+ out[k[len(METADATA_PREFIX) :]] = v
+ elif not k.startswith("agentevals."):
+ out[k] = v
+ return out
+
+
+class _PendingLogs:
+ """Logs whose trace is not known yet, replayed when the trace appears. Bounded and expiring;
+ a full buffer rejects the newcomer instead of evicting buffered records."""
+
+ def __init__(self, limits: Limits):
+ self._limits = limits
+ self._by_trace: OrderedDict[str, list[tuple[float, LogRecord, int]]] = OrderedDict()
+ self.count = 0
+ self.nbytes = 0
+
+ def add(self, trace_id: str, log: LogRecord, now: float) -> bool:
+ size = log_size(log)
+ bucket = self._by_trace.get(trace_id)
+ if (
+ self.count >= self._limits.pending_logs
+ or self.nbytes + size > self._limits.pending_log_bytes
+ or (bucket is not None and len(bucket) >= self._limits.pending_logs_per_trace)
+ ):
+ return False
+ if bucket is None:
+ bucket = self._by_trace[trace_id] = []
+ bucket.append((now, log, size))
+ self.count += 1
+ self.nbytes += size
+ return True
+
+ def take(self, trace_id: str) -> list[LogRecord]:
+ bucket = self._by_trace.pop(trace_id, None) or []
+ self.count -= len(bucket)
+ self.nbytes -= sum(size for _, _, size in bucket)
+ return [log for _, log, _ in bucket]
+
+ def expire(self, now: float) -> None:
+ cutoff = now - self._limits.pending_log_ttl_seconds
+ for trace_id in list(self._by_trace):
+ bucket = self._by_trace[trace_id]
+ kept = [entry for entry in bucket if entry[0] >= cutoff]
+ if len(kept) != len(bucket):
+ self.count -= len(bucket) - len(kept)
+ self.nbytes -= sum(size for t, _, size in bucket if t < cutoff)
+ if kept:
+ self._by_trace[trace_id] = kept
+ else:
+ del self._by_trace[trace_id]
+
+
+class TelemetryStore:
+ def __init__(
+ self,
+ policy: RoutingPolicy,
+ limits: Limits | None = None,
+ clock: Callable[[], float] = time.monotonic,
+ ):
+ self.policy = policy
+ self.limits = limits or Limits()
+ self.clock = clock
+ self.sessions: dict[str, LiveSession] = {}
+ self.traces: dict[str, LiveTrace] = {}
+ self.staged: OrderedDict[str, LiveTrace] = OrderedDict()
+ self.pending = _PendingLogs(self.limits)
+ self.heads: dict[SessionKey, str] = {}
+ self.events: list[tuple] = []
+ self.counters: Counter = Counter()
+ self.nbytes = 0
+ self._deadlines: list[tuple[float, str, str]] = []
+
+ # ------------------------------------------------------------ lookups
+
+ def session_of_trace(self, trace_id: str) -> LiveSession | None:
+ trace = self.traces.get(trace_id)
+ return self.sessions.get(trace.session_id) if trace and trace.session_id else None
+
+ def primary_trace_id(self, session: LiveSession) -> str:
+ """The earliest span bearing trace, else the first member."""
+ with_spans = [self.traces[t] for t in session.trace_ids if self.traces[t].has_spans]
+ if with_spans:
+ return min(with_spans, key=lambda t: (t.start_time_unix_nano, t.trace_id)).trace_id
+ return session.trace_ids[0] if session.trace_ids else ""
+
+ def snapshot(self, session_id: str) -> list[TraceSnapshot]:
+ session = self.sessions.get(session_id)
+ if session is None:
+ return []
+ out = []
+ for trace_id in session.trace_ids:
+ trace = self.traces[trace_id]
+ out.append(
+ TraceSnapshot(trace_id, trace.version, tuple(trace.spans.values()), tuple(trace.logs), trace.complete)
+ )
+ return out
+
+ # ------------------------------------------------------------ sessions
+
+ def _unique_id(self, base: str) -> str:
+ if base not in self.sessions:
+ return base
+ n = 2
+ while f"{base}-{n}" in self.sessions:
+ n += 1
+ return f"{base}-{n}"
+
+ def _new_session(
+ self,
+ base_id: str,
+ key: SessionKey | None,
+ run_id: str | None,
+ resource: Mapping,
+ exclude: str | None = None,
+ ) -> LiveSession | None:
+ if len(self.sessions) >= self.limits.max_sessions and not self._evict_oldest_complete(exclude):
+ return None
+ session = LiveSession(
+ session_id=self._unique_id(base_id),
+ key=key,
+ run_id=run_id,
+ instance_id=coerce_key(resource.get(SERVICE_INSTANCE_ID)),
+ eval_set_id=coerce_key(resource.get(EVAL_SET_ID)),
+ metadata=session_metadata(resource),
+ last_activity=self.clock(),
+ )
+ self.sessions[session.session_id] = session
+ if key is not None:
+ self.heads[key] = session.session_id
+ self.events.append(("started", session.session_id))
+ return session
+
+ def _is_rerun(self, head: LiveSession, resource: Mapping) -> bool:
+ if not head.is_complete or head.key is None or head.key[0] not in self.policy.rerun_kinds:
+ return False
+ instance = coerce_key(resource.get(SERVICE_INSTANCE_ID))
+ if instance is not None and head.instance_id is not None:
+ return instance != head.instance_id
+ return self.clock() - (head.completed_mono or 0.0) >= self.limits.rerun_window_seconds
+
+ def _outranks(self, key: SessionKey, other: SessionKey | None) -> bool:
+ if other is None:
+ return True
+ strength = self.policy.key_strength
+ return strength.get(key[0], 0) > strength.get(other[0], 0)
+
+ def _head(
+ self, key: SessionKey, run_id: str | None, resource: Mapping, exclude: str | None = None
+ ) -> LiveSession | None:
+ """The session for ``key``, created when needed. ``exclude`` is never evicted to make room."""
+ head = self.sessions.get(self.heads.get(key, ""))
+ if head is not None:
+ new_run = run_id is not None and head.run_id != run_id
+ if not new_run and not self._is_rerun(head, resource):
+ return head
+ return self._new_session(key[1], key, run_id, resource, exclude)
+
+ def _discard_if_empty(self, session: LiveSession) -> None:
+ """Drop a session this call created when it ends up holding nothing. Its start was never
+ observed outside the store, so its ``started`` event is withdrawn rather than answered with
+ a removal."""
+ if session.trace_ids:
+ return
+ self.sessions.pop(session.session_id, None)
+ if session.key is not None and self.heads.get(session.key) == session.session_id:
+ del self.heads[session.key]
+ started = ("started", session.session_id)
+ if started in self.events:
+ self.events.remove(started)
+ else:
+ self.events.append(("removed", session.session_id, None))
+
+ def _detach_if_empty(self, trace: LiveTrace, session: LiveSession) -> None:
+ if trace.spans or trace.logs:
+ return
+ if trace.trace_id in session.trace_ids:
+ session.trace_ids.remove(trace.trace_id)
+ if self.traces.get(trace.trace_id) is trace:
+ del self.traces[trace.trace_id]
+ self._discard_if_empty(session)
+
+ def _remove_session(self, session_id: str, absorbed_by: str | None) -> None:
+ session = self.sessions.pop(session_id, None)
+ if session is None:
+ return
+ for trace_id in session.trace_ids:
+ trace = self.traces.get(trace_id)
+ if trace is not None and trace.session_id == session_id:
+ del self.traces[trace_id]
+ self.nbytes -= trace.nbytes
+ if session.key is not None and self.heads.get(session.key) == session_id:
+ del self.heads[session.key]
+ self.events.append(("removed", session_id, absorbed_by))
+
+ def remove_session(self, session_id: str) -> None:
+ self._remove_session(session_id, None)
+
+ def _evict_oldest_complete(self, exclude: str | None) -> bool:
+ candidates = [s for s in self.sessions.values() if s.is_complete and s.session_id != exclude]
+ if not candidates:
+ return False
+ oldest = min(candidates, key=lambda s: s.completed_mono or 0.0)
+ self.counters["sessions evicted"] += 1
+ self._remove_session(oldest.session_id, None)
+ return True
+
+ def _make_room(self, size: int, exclude: str | None, keep_staged: str | None = None) -> bool:
+ """Evict staged traces, then complete sessions, until ``size`` fits. Neither the session
+ ``exclude`` nor the staged trace ``keep_staged`` (the one being written) is evicted."""
+ while self.nbytes + size > self.limits.max_bytes:
+ victim = next((t for t in self.staged if t != keep_staged), None)
+ if victim is not None:
+ trace = self.staged.pop(victim)
+ self.nbytes -= trace.nbytes
+ self.counters["staged traces evicted"] += 1
+ elif not self._evict_oldest_complete(exclude):
+ return False
+ return True
+
+ def _attach(self, trace: LiveTrace, session: LiveSession) -> None:
+ trace.session_id = session.session_id
+ self.traces[trace.trace_id] = trace
+ session.trace_ids.append(trace.trace_id)
+ session.span_count += len(trace.spans)
+ session.log_count += len(trace.logs)
+ session.nbytes += trace.nbytes
+
+ def _fits(self, target: LiveSession, traces: int, spans: int, logs: int) -> bool:
+ return (
+ len(target.trace_ids) + traces <= self.limits.traces_per_session
+ and target.span_count + spans <= self.limits.spans_per_session
+ and target.log_count + logs <= self.limits.logs_per_session
+ )
+
+ def _merge_into(self, source: LiveSession, target: LiveSession) -> bool:
+ if not self._fits(target, len(source.trace_ids), source.span_count, source.log_count):
+ return False
+ for trace_id in list(source.trace_ids):
+ self._move_trace(self.traces[trace_id], source, target)
+ return True
+
+ def _move_trace(self, trace: LiveTrace, source: LiveSession, target: LiveSession) -> None:
+ """Move one trace between sessions. A source left with no trace is absorbed by the target."""
+ source.trace_ids.remove(trace.trace_id)
+ source.span_count -= len(trace.spans)
+ source.log_count -= len(trace.logs)
+ source.nbytes -= trace.nbytes
+ self._attach(trace, target)
+ if source.trace_ids:
+ self._dirty(source)
+ else:
+ self._remove_session(source.session_id, target.session_id)
+ target.last_activity = self.clock()
+ if target.is_complete and not trace.complete:
+ self._reopen(target)
+ if not target.is_complete:
+ heapq.heappush(self._deadlines, (target.last_activity, "session", target.session_id))
+ self._dirty(target)
+
+ def _reopen(self, session: LiveSession) -> None:
+ session.is_complete = False
+ session.completed_at = None
+ session.completed_mono = None
+ self.events.append(("reopened", session.session_id))
+
+ def _dirty(self, session: LiveSession) -> None:
+ self.events.append(("dirty", session.session_id))
+
+ # ------------------------------------------------------------ spans
+
+ def ingest_spans(self, spans: Sequence[Span]) -> IngestResult:
+ """Apply spans of one trace sharing one resource (one routing unit)."""
+ result = IngestResult()
+ if not spans:
+ return result
+ now = self.clock()
+ trace_id = spans[0].trace_id
+ resource = spans[0].resource.attributes
+ in_start_order = sorted(spans, key=lambda s: (s.start_time_unix_nano, s.span_id))
+ key = self.policy.session_key((s.attributes, resource) for s in in_start_order)
+ run_id = coerce_key(resource.get(SESSION_RUN_ID))
+
+ trace = self.traces.get(trace_id)
+ session = self.sessions.get(trace.session_id) if trace and trace.session_id else None
+ attached_now = False
+ if session is not None:
+ if key is not None and self._outranks(key, session.key):
+ target = self._head(key, run_id, resource, exclude=session.session_id)
+ if target is None:
+ result.reject(REASON_SPAN_SESSIONS, len(spans))
+ return result
+ if target is not session:
+ if not self._merge_into(session, target):
+ self._discard_if_empty(target)
+ result.reject(REASON_MERGE_REFUSED, len(spans))
+ return result
+ session = target
+ elif key is not None and key != session.key and not self._outranks(session.key, key):
+ if trace.min_start is None or in_start_order[0].start_time_unix_nano >= trace.min_start:
+ self.counters["session key conflicts"] += 1
+ else:
+ # Spans export as they end, so a delegate with its own conversation id usually
+ # arrives before the span that encloses it; the earliest span owns the trace.
+ target = self._head(key, run_id, resource, exclude=session.session_id)
+ if target is None:
+ result.reject(REASON_SPAN_SESSIONS, len(spans))
+ return result
+ if target is not session:
+ if not self._fits(target, 1, len(trace.spans), len(trace.logs)):
+ self._discard_if_empty(target)
+ result.reject(REASON_MERGE_REFUSED, len(spans))
+ return result
+ self._move_trace(trace, session, target)
+ session = target
+ else:
+ staged = self.staged.pop(trace_id, None)
+ if staged is not None:
+ self.nbytes -= staged.nbytes
+ if key is not None:
+ session = self._head(key, run_id, resource)
+ elif self.policy.opens_session(spans):
+ session = self._new_session(f"otlp-{trace_id[:12]}", None, None, resource)
+ else:
+ return self._stage(staged or LiveTrace(trace_id=trace_id), spans, now, result)
+ if session is None:
+ if staged is not None:
+ self._restage(staged)
+ result.reject(REASON_SPAN_SESSIONS, len(spans))
+ return result
+ if len(session.trace_ids) >= self.limits.traces_per_session:
+ if staged is not None:
+ self._restage(staged)
+ result.reject(REASON_SESSION_TRACES, len(spans))
+ return result
+ trace = staged or LiveTrace(trace_id=trace_id)
+ if staged is not None:
+ self.nbytes += staged.nbytes
+ self._attach(trace, session)
+ attached_now = True
+ pending = self.pending.take(trace_id)
+ envelope = envelope_size(pending)
+ for log in pending:
+ if self._add_log(trace, session, log, IngestResult(), extra=envelope):
+ envelope = 0
+
+ added: list[Span] = []
+ envelope = envelope_size(spans)
+ for span in spans:
+ if span.span_id in trace.spans:
+ result.accepted += 1
+ continue
+ if len(trace.spans) >= self.limits.spans_per_trace:
+ result.reject(REASON_TRACE_SPANS)
+ continue
+ if session.span_count >= self.limits.spans_per_session:
+ result.reject(REASON_SESSION_SPANS)
+ continue
+ size = span_size(span) + envelope
+ if not self._make_room(size, exclude=session.session_id):
+ result.reject(REASON_SPAN_MEMORY)
+ continue
+ envelope = 0
+ trace.spans[span.span_id] = span
+ trace.nbytes += size
+ session.nbytes += size
+ self.nbytes += size
+ session.span_count += 1
+ trace.note_span(span)
+ result.accepted += 1
+ added.append(span)
+ if attached_now:
+ self._detach_if_empty(trace, session)
+ if added:
+ if session.is_complete:
+ self._reopen(session)
+ trace.version += 1
+ trace.last_span_at = now
+ trace.complete = False
+ session.last_activity = now
+ self._schedule_trace(trace)
+ self.events.append(("spans", session.session_id, added))
+ self._dirty(session)
+ return result
+
+ def _stage(self, trace: LiveTrace, spans: Sequence[Span], now: float, result: IngestResult) -> IngestResult:
+ envelope = envelope_size(spans)
+ for span in spans:
+ if span.span_id in trace.spans:
+ result.accepted += 1
+ continue
+ if len(trace.spans) >= self.limits.spans_per_trace:
+ result.reject(REASON_TRACE_SPANS)
+ continue
+ size = span_size(span) + envelope
+ if not self._make_room(size + trace.nbytes, exclude=None):
+ result.reject(REASON_SPAN_MEMORY)
+ continue
+ envelope = 0
+ trace.spans[span.span_id] = span
+ trace.nbytes += size
+ trace.note_span(span)
+ result.accepted += 1
+ trace.staged_at = now
+ trace.last_span_at = now
+ trace.version += 1
+ self._restage(trace)
+ return result
+
+ def _restage(self, trace: LiveTrace) -> None:
+ self.staged[trace.trace_id] = trace
+ self.staged.move_to_end(trace.trace_id)
+ self.nbytes += trace.nbytes
+ while len(self.staged) > self.limits.staged_traces:
+ _, dropped = self.staged.popitem(last=False)
+ self.nbytes -= dropped.nbytes
+ self.counters["staged traces evicted"] += 1
+
+ # ------------------------------------------------------------ logs
+
+ def _add_log(
+ self,
+ trace: LiveTrace,
+ session: LiveSession | None,
+ log: LogRecord,
+ result: IngestResult,
+ extra: int = 0,
+ ) -> bool:
+ """Store ``log`` in ``trace``; ``extra`` bytes (its export's envelope) are charged with it.
+ A staged ``trace`` (``session`` is None) is protected from the eviction that makes room."""
+ key = log_fingerprint(log)
+ if key in trace.log_keys:
+ result.accepted += 1
+ return False
+ if len(trace.logs) >= self.limits.logs_per_trace:
+ result.reject(REASON_TRACE_LOGS)
+ return False
+ if session is not None and session.log_count >= self.limits.logs_per_session:
+ result.reject(REASON_SESSION_LOGS)
+ return False
+ size = log_size(log) + extra
+ keep = trace.trace_id if session is None else None
+ if not self._make_room(size, exclude=session.session_id if session else None, keep_staged=keep):
+ result.reject(REASON_LOG_MEMORY)
+ return False
+ trace.logs.append(log)
+ trace.log_keys.add(key)
+ trace.nbytes += size
+ self.nbytes += size
+ trace.version += 1
+ if session is not None:
+ session.log_count += 1
+ session.nbytes += size
+ result.accepted += 1
+ return True
+
+ def ingest_logs(self, logs: Sequence[LogRecord]) -> IngestResult:
+ """Apply log records of one trace (or of no trace) sharing one resource."""
+ result = IngestResult()
+ kept: list[LogRecord] = []
+ for log in logs:
+ if self.policy.is_own_record(log):
+ result.reject(REASON_FEEDBACK)
+ elif reason := self.policy.log_drop_reason(log):
+ result.accepted += 1
+ result.dropped[reason] += 1
+ elif not log.trace_id:
+ result.accepted += 1
+ result.dropped["no trace context"] += 1
+ else:
+ kept.append(log)
+ self.counters.update(result.dropped)
+ if not kept:
+ return result
+
+ now = self.clock()
+ trace_id = kept[0].trace_id
+ trace = self.traces.get(trace_id)
+ session = self.sessions.get(trace.session_id) if trace and trace.session_id else None
+ envelope = envelope_size(kept)
+ if trace is None and trace_id in self.staged:
+ trace = self.staged[trace_id]
+ for log in kept:
+ if self._add_log(trace, None, log, result, extra=envelope):
+ envelope = 0
+ return result
+ if trace is None:
+ resource = kept[0].resource.attributes
+ key = self.policy.session_key((log.attributes, resource) for log in kept)
+ if key is None:
+ for log in kept:
+ if self.pending.add(trace_id, log, now):
+ result.accepted += 1
+ else:
+ result.reject(REASON_PENDING_FULL)
+ return result
+ session = self._head(key, coerce_key(resource.get(SESSION_RUN_ID)), resource)
+ if session is None:
+ result.reject(REASON_LOG_SESSIONS, len(kept))
+ return result
+ trace = LiveTrace(trace_id=trace_id)
+ self._attach(trace, session)
+ self._schedule_session(session, now)
+ attached_now = True
+ else:
+ attached_now = False
+
+ before = result.accepted
+ for log in kept:
+ if self._add_log(trace, session, log, result, extra=envelope):
+ envelope = 0
+ if attached_now:
+ self._detach_if_empty(trace, session)
+ if trace.trace_id not in self.traces:
+ return result
+ if result.accepted > before and session is not None:
+ if not session.is_complete:
+ session.last_activity = now
+ if not any(self.traces[t].has_spans for t in session.trace_ids):
+ self._schedule_session(session, now)
+ self._dirty(session)
+ return result
+
+ # ------------------------------------------------------------ completion
+
+ def _schedule_trace(self, trace: LiveTrace) -> None:
+ delay = self.limits.completion_grace_seconds if trace.has_local_root else self.limits.idle_timeout_seconds
+ heapq.heappush(self._deadlines, ((trace.last_span_at or 0.0) + delay, "trace", trace.trace_id))
+
+ def _schedule_session(self, session: LiveSession, now: float) -> None:
+ heapq.heappush(self._deadlines, (now + self.limits.idle_timeout_seconds, "session", session.session_id))
+
+ def next_deadline(self) -> float | None:
+ return self._deadlines[0][0] if self._deadlines else None
+
+ def _trace_due(self, trace: LiveTrace) -> float:
+ delay = self.limits.completion_grace_seconds if trace.has_local_root else self.limits.idle_timeout_seconds
+ return (trace.last_span_at or 0.0) + delay
+
+ def tick(self) -> list[str]:
+ """Complete what is due. Returns the ids of sessions that completed in this call."""
+ now = self.clock()
+ touched: set[str] = set()
+ while self._deadlines and self._deadlines[0][0] <= now:
+ _, kind, ident = heapq.heappop(self._deadlines)
+ if kind == "trace":
+ trace = self.traces.get(ident)
+ if trace is None or trace.complete or trace.session_id is None:
+ continue
+ due = self._trace_due(trace)
+ if due > now:
+ heapq.heappush(self._deadlines, (due, "trace", ident))
+ continue
+ trace.complete = True
+ touched.add(trace.session_id)
+ else:
+ session = self.sessions.get(ident)
+ if session is None or session.is_complete:
+ continue
+ if any(self.traces[t].has_spans for t in session.trace_ids):
+ touched.add(ident)
+ continue
+ due = session.last_activity + self.limits.idle_timeout_seconds
+ if due > now:
+ heapq.heappush(self._deadlines, (due, "session", ident))
+ continue
+ touched.add(ident)
+
+ completed = []
+ for session_id in touched:
+ session = self.sessions.get(session_id)
+ if session is None or session.is_complete:
+ continue
+ bearing = [self.traces[t] for t in session.trace_ids if self.traces[t].has_spans]
+ if all(t.complete for t in bearing):
+ session.is_complete = True
+ session.completed_at = datetime.now(UTC)
+ session.completed_mono = now
+ completed.append(session_id)
+ return completed
+
+ def expire(self) -> None:
+ """Drop expired staged traces, pending logs and sessions past their TTL."""
+ now = self.clock()
+ self.pending.expire(now)
+ cutoff = now - self.limits.staged_ttl_seconds
+ while self.staged:
+ trace_id, trace = next(iter(self.staged.items()))
+ if trace.staged_at >= cutoff:
+ break
+ del self.staged[trace_id]
+ self.nbytes -= trace.nbytes
+ session_cutoff = now - self.limits.session_ttl_seconds
+ for session in list(self.sessions.values()):
+ if session.is_complete and (session.completed_mono or now) < session_cutoff:
+ self._remove_session(session.session_id, None)
+
+ # ------------------------------------------------------------ debug load
+
+ def load_session(
+ self,
+ session_id: str,
+ spans: Iterable[Span],
+ logs: Iterable[LogRecord],
+ *,
+ eval_set_id: str | None = None,
+ metadata: Mapping[str, Any] | None = None,
+ ) -> LiveSession | None:
+ """Insert a complete session as is, bypassing key routing (bug report replay)."""
+ if len(self.sessions) >= self.limits.max_sessions and not self._evict_oldest_complete(exclude=None):
+ return None
+ now = self.clock()
+ session = LiveSession(
+ session_id=self._unique_id(session_id),
+ key=None,
+ eval_set_id=eval_set_id,
+ metadata=dict(metadata or {}),
+ last_activity=now,
+ )
+ by_trace: dict[str, LiveTrace] = {}
+ for span in spans:
+ trace = by_trace.setdefault(span.trace_id, LiveTrace(trace_id=span.trace_id))
+ if span.span_id in trace.spans or len(trace.spans) >= self.limits.spans_per_trace:
+ continue
+ trace.spans[span.span_id] = span
+ trace.nbytes += span_size(span)
+ trace.note_span(span)
+ for log in logs:
+ if not log.trace_id:
+ continue
+ trace = by_trace.setdefault(log.trace_id, LiveTrace(trace_id=log.trace_id))
+ if len(trace.logs) < self.limits.logs_per_trace:
+ trace.logs.append(log)
+ trace.nbytes += log_size(log)
+ for trace in by_trace.values():
+ trace.nbytes += envelope_size([*trace.spans.values(), *trace.logs])
+ size = sum(t.nbytes for t in by_trace.values())
+ if not self._make_room(size, exclude=None):
+ return None
+ self.sessions[session.session_id] = session
+ for trace in by_trace.values():
+ if trace.trace_id in self.traces:
+ continue
+ trace.complete = True
+ trace.last_span_at = now
+ trace.version = 1
+ self._attach(trace, session)
+ self.nbytes += trace.nbytes
+ session.is_complete = True
+ session.completed_once = True
+ session.completed_at = datetime.now(UTC)
+ session.completed_mono = now
+ self.events.append(("started", session.session_id))
+ return session
diff --git a/src/agentevals/otlp_anyvalue.py b/src/agentevals/otlp_anyvalue.py
deleted file mode 100644
index 923a6a77..00000000
--- a/src/agentevals/otlp_anyvalue.py
+++ /dev/null
@@ -1,118 +0,0 @@
-"""Shared decoder for the OTLP ``AnyValue`` union.
-
-OTLP encodes every attribute value, log body and nested element as an
-``AnyValue``: a one-of wrapper such as ``{"stringValue": "chat"}`` or
-``{"arrayValue": {"values": [...]}}``. The protobuf receiver (via
-``MessageToDict``) and OTLP/JSON payloads deliver that same dict shape, so
-every consumer needs identical decoding rules.
-
-This module depends only on the standard library and ``trace_attrs`` (a leaf
-constants module), so ``extraction``, ``loader.otlp`` and ``api.otlp_processing``
-can all use it without creating an import cycle.
-"""
-
-from __future__ import annotations
-
-import logging
-from typing import Any
-
-from .trace_attrs import SPEC_CONTAINER_ATTRS
-
-logger = logging.getLogger(__name__)
-
-ANY_VALUE_FIELDS = (
- "stringValue",
- "intValue",
- "doubleValue",
- "boolValue",
- "kvlistValue",
- "arrayValue",
- "bytesValue",
-)
-
-
-def decode_any_value(value_obj: dict) -> Any:
- """Recursively decode an OTLP ``AnyValue`` to a native Python value.
-
- Handles the full union: stringValue, intValue (OTLP sends it as a
- string), doubleValue, boolValue, kvlistValue (→ dict), arrayValue
- (→ list), bytesValue.
-
- ``bytesValue`` is returned unchanged. ``MessageToDict`` base64-encodes
- protobuf bytes fields and OTLP/JSON does the same, so callers already
- receive a str; decoding it here would change the value they see today.
-
- A value carrying none of the union fields is returned as-is.
- """
- if "stringValue" in value_obj:
- return value_obj["stringValue"]
- if "intValue" in value_obj:
- return int(value_obj["intValue"])
- if "doubleValue" in value_obj:
- return float(value_obj["doubleValue"])
- if "boolValue" in value_obj:
- return value_obj["boolValue"]
- if "kvlistValue" in value_obj:
- kv = value_obj["kvlistValue"]
- return {item.get("key", ""): decode_any_value(item.get("value", {})) for item in kv.get("values", [])}
- if "arrayValue" in value_obj:
- arr = value_obj["arrayValue"]
- return [decode_any_value(v) for v in arr.get("values", [])]
- if "bytesValue" in value_obj:
- return value_obj["bytesValue"]
- return value_obj
-
-
-def is_any_value(value_obj: dict) -> bool:
- """Return True when *value_obj* carries one of the ``AnyValue`` fields."""
- for field in ANY_VALUE_FIELDS:
- if field in value_obj:
- return True
- return False
-
-
-def decode_attribute(key: str, value_obj: dict) -> tuple[bool, Any]:
- """Decode one attribute, applying the container allowlist.
-
- Returns ``(keep, value)``. Scalars are always kept. A list or dict is kept
- only when *key* is in :data:`SPEC_CONTAINER_ATTRS`; otherwise it is dropped,
- which is what ``extraction.py`` did with containers before this decoder was
- shared.
-
- Dropping rather than serialising is deliberate: JSON-dumping the value would
- put a blob back into user-visible output, which is the symptom #173 is
- about. What the default *should* be is tracked in #208.
- """
- value = decode_any_value(value_obj)
- if isinstance(value, (list, dict)) and key not in SPEC_CONTAINER_ATTRS:
- logger.warning(
- "Dropping container value for %s (got %s); only spec container attributes are kept",
- key,
- type(value).__name__,
- )
- return False, None
- return True, value
-
-
-def decode_attributes(attrs_list: list[dict]) -> dict[str, Any]:
- """Decode an OTLP attributes array to a flat ``{key: value}`` dict.
-
- Entries whose value carries no ``AnyValue`` field are skipped, matching the
- behaviour every call site had before they shared this decoder.
-
- Container values survive only for the keys in
- :data:`~agentevals.trace_attrs.SPEC_CONTAINER_ATTRS`. Keeping the allowlist
- here rather than narrowing per consumer means an attribute nobody has
- thought about cannot become an unhashable dict key downstream - there is
- nothing to remember, because it was never widened in the first place.
- """
- result: dict[str, Any] = {}
- for attr in attrs_list:
- value_obj = attr.get("value", {})
- if not is_any_value(value_obj):
- continue
- key = attr.get("key", "")
- keep, value = decode_attribute(key, value_obj)
- if keep:
- result[key] = value
- return result
diff --git a/src/agentevals/run/fetcher.py b/src/agentevals/run/fetcher.py
index d5c20d85..b7058ca8 100644
--- a/src/agentevals/run/fetcher.py
+++ b/src/agentevals/run/fetcher.py
@@ -8,16 +8,13 @@
from __future__ import annotations
-import json
import logging
-import tempfile
-from pathlib import Path
from typing import Protocol
import httpx
-from ..loader import load_traces
-from ..loader.base import Trace
+from ..loader import load_traces_from_obj
+from ..otel.model import Trace
from ..storage.models import TraceTarget
logger = logging.getLogger(__name__)
@@ -28,22 +25,12 @@ async def fetch(self, target: TraceTarget, context: dict) -> list[Trace]: ...
class InlineTraceFetcher:
- """Materializes inline JSON to a temp file and parses it via the existing loader.
-
- The temp file dance reuses :func:`agentevals.loader.load_traces` (which
- auto-detects format) without a special-case in the loader for dict input.
- """
+ """Decodes the JSON document embedded in the run spec."""
async def fetch(self, target: TraceTarget, context: dict) -> list[Trace]:
if not target.inline:
raise ValueError("InlineTraceFetcher requires target.inline to be set")
- with tempfile.NamedTemporaryFile(mode="w", suffix=".json", delete=False, encoding="utf-8") as f:
- json.dump(target.inline, f)
- path = Path(f.name)
- try:
- return load_traces(str(path), format=target.trace_format)
- finally:
- path.unlink(missing_ok=True) # noqa: ASYNC240
+ return load_traces_from_obj(target.inline, format=target.trace_format)
class HttpTraceFetcher:
@@ -61,13 +48,7 @@ async def fetch(self, target: TraceTarget, context: dict) -> list[Trace]:
resp = await client.get(url, headers=headers)
resp.raise_for_status()
payload = resp.json()
- with tempfile.NamedTemporaryFile(mode="w", suffix=".json", delete=False, encoding="utf-8") as f:
- json.dump(payload, f)
- path = Path(f.name)
- try:
- return load_traces(str(path), format=target.trace_format)
- finally:
- path.unlink(missing_ok=True) # noqa: ASYNC240
+ return load_traces_from_obj(payload, format=target.trace_format)
def resolve_fetcher(target: TraceTarget) -> TraceFetcher:
diff --git a/src/agentevals/run/result_builder.py b/src/agentevals/run/result_builder.py
index 40f4fc40..5bc9749b 100644
--- a/src/agentevals/run/result_builder.py
+++ b/src/agentevals/run/result_builder.py
@@ -37,6 +37,7 @@ def result_from_metric_result(
trace_id: str | None,
evaluator_type: EvaluatorType,
metric_result: MetricResult,
+ span_id: str | None = None,
) -> Result:
"""Project an ADK :class:`MetricResult` onto a persistable :class:`Result`.
@@ -67,6 +68,7 @@ def result_from_metric_result(
score=metric_result.score,
per_invocation_scores=list(metric_result.per_invocation_scores or []),
trace_id=trace_id,
+ span_id=span_id,
details=metric_result.details or {},
error_text=metric_result.error,
latency_ms=latency_ms,
@@ -77,14 +79,15 @@ def build_results(run_id: UUID, params: EvalParams, run_result: RunResult) -> li
"""Flatten ``run_result.trace_results[*].metric_results[*]`` into a list
of persistable :class:`Result` rows.
- The ``eval_set_item_id`` and ``eval_set_item_name`` both default to the
- trace_id, since OSS doesn't currently extract a stable per-eval-case
- identifier from the ADK :class:`EvalSet`. Callers may post-process to
- attach their own identifiers.
+ ``eval_set_item_id`` and ``eval_set_item_name`` are the evaluation group key: the trace
+ id for single trace groups, the conversation key otherwise. ``span_id`` is the turn's
+ anchor span when the group has exactly one turn. Callers may post-process to attach
+ their own identifiers.
"""
out: list[Result] = []
for trace_result in run_result.trace_results:
- item_id = trace_result.trace_id
+ item_id = trace_result.group_key or trace_result.trace_id
+ span_id = trace_result.turn_refs[0].span_id if len(trace_result.turn_refs) == 1 else None
for mr in trace_result.metric_results:
out.append(
result_from_metric_result(
@@ -94,6 +97,7 @@ def build_results(run_id: UUID, params: EvalParams, run_result: RunResult) -> li
trace_id=trace_result.trace_id,
evaluator_type=classify_evaluator(mr.metric_name, params),
metric_result=mr,
+ span_id=span_id,
)
)
return out
diff --git a/src/agentevals/run/worker.py b/src/agentevals/run/worker.py
index af012f62..480389af 100644
--- a/src/agentevals/run/worker.py
+++ b/src/agentevals/run/worker.py
@@ -18,8 +18,8 @@
from datetime import timedelta
from uuid import UUID
-from google.adk.evaluation.eval_set import EvalSet
-
+from .. import evaluation_events as emit
+from ..adk_bridge import EvalSet, load_eval_set_from_dict
from ..config import EvalParams
from ..resolvers import (
reset_resolved_credentials,
@@ -146,7 +146,7 @@ async def _run_evaluation(self, run: Run, sinks: SinkFanout, cancel_event: async
params = EvalParams.model_validate(run.spec.eval_config or {})
eval_set: EvalSet | None = None
if run.spec.eval_set:
- eval_set = EvalSet.model_validate(run.spec.eval_set)
+ eval_set = load_eval_set_from_dict(run.spec.eval_set)
fetcher = resolve_fetcher(run.spec.target)
@@ -166,7 +166,9 @@ async def _trace_progress(trace_result: TraceResult) -> None:
config=params,
eval_set=eval_set,
trace_progress_callback=_trace_progress,
+ run_id=str(run.run_id),
)
+ await asyncio.to_thread(emit.flush)
results = build_results(run.run_id, params, run_result)
await self._results.upsert_many(run.run_id, results)
diff --git a/src/agentevals/runner.py b/src/agentevals/runner.py
index eae4066d..a91bd297 100644
--- a/src/agentevals/runner.py
+++ b/src/agentevals/runner.py
@@ -1,29 +1,45 @@
-"""Evaluation runner — orchestrates trace loading, conversion, and scoring."""
+"""Evaluation runner: groups traces into conversations, selects goldens, runs evaluators."""
from __future__ import annotations
import asyncio
-import json
import logging
import time
from collections.abc import Awaitable, Callable
from typing import Any
-from google.adk.evaluation.eval_case import Invocation
-from google.adk.evaluation.eval_set import EvalSet
from pydantic import BaseModel, ConfigDict, Field
from pydantic.alias_generators import to_camel
-from .config import (
- EvalParams,
- EvalRunConfig,
- EvaluatorDef,
+from . import evaluation_events as emit
+from .adk_bridge import (
+ EvalSet,
+ expected_conversations,
+ load_eval_set,
+ load_eval_set_from_dict,
+ multi_turn_cases,
)
-from .converter import ConversionResult, convert_traces
+from .config import EvalParams, EvalRunConfig, EvaluatorDef
+from .genai.extract import extract_conversation
+from .genai.grouping import group_traces, has_session_name
+from .genai.matching import EVAL_CASE_ID, ExpectedConversation, select_case
+from .genai.model import Conversation
from .loader import load_traces
-from .loader.base import Trace
+from .otel.identity import coerce_key
+from .otel.model import Trace
from .trace_metrics import _calc_percentiles, extract_agent_identity, extract_performance_metrics
+__all__ = [
+ "MetricResult",
+ "RunResult",
+ "TraceResult",
+ "evaluation_groups",
+ "load_eval_set",
+ "load_eval_set_from_dict",
+ "run_evaluation",
+ "run_evaluation_from_traces",
+]
+
logger = logging.getLogger(__name__)
ProgressCallback = Callable[[str], Awaitable[None]]
@@ -37,12 +53,26 @@ class MetricResult(BaseModel):
score: float | None = None
eval_status: str = "NOT_EVALUATED"
per_invocation_scores: list[float | None] = Field(default_factory=list)
+ per_invocation_statuses: list[str] = Field(default_factory=list)
error: str | None = None
+ error_type: str | None = None
details: dict[str, Any] | None = None
duration_ms: float | None = None
+class TurnRef(BaseModel):
+ model_config = ConfigDict(alias_generator=to_camel, populate_by_name=True)
+
+ trace_id: str
+ span_id: str
+
+
class TraceResult(BaseModel):
+ """Results for one evaluation group: a trace, or a conversation of several traces.
+
+ ``trace_id`` is the group's earliest trace, so single trace groups read as before.
+ """
+
model_config = ConfigDict(alias_generator=to_camel, populate_by_name=True)
trace_id: str
@@ -52,6 +82,12 @@ class TraceResult(BaseModel):
performance_metrics: dict[str, Any] | None = None
service_name: str | None = None
agent_name: str | None = None
+ trace_ids: list[str] = Field(default_factory=list)
+ conversation_id: str | None = None
+ group_key: str | None = None
+ eval_case_id: str | None = None
+ eval_case_match: str | None = None
+ turn_refs: list[TurnRef] = Field(default_factory=list)
class RunResult(BaseModel):
@@ -63,15 +99,30 @@ class RunResult(BaseModel):
run_id: str | None = None
-def load_eval_set(path: str) -> EvalSet:
- with open(path, encoding="utf-8") as f:
- data = json.load(f)
- return EvalSet.model_validate(data)
+def evaluation_groups(
+ traces: list[Trace], group_by: str, eval_set: EvalSet | None = None
+) -> list[tuple[str, list[Trace]]]:
+ """The evaluation groups for ``group_by``: one per trace, or one per conversation key.
+
+ ``auto`` groups by conversation when any trace carries ``agentevals.session_name`` or the eval
+ set has a case with more than one invocation. Every view of the same traces (results, early
+ performance events, ``/api/convert`` with ``group_by``) uses this, so they line up by trace id.
+ """
+ if group_by == "auto":
+ by_conversation = has_session_name(traces) or multi_turn_cases(eval_set)
+ else:
+ by_conversation = group_by == "conversation"
+ return group_traces(traces, by_conversation)
-def load_eval_set_from_dict(data: dict) -> EvalSet:
- """Parse an ADK EvalSet from a dict (for programmatic / API use)."""
- return EvalSet.model_validate(data)
+def _explicit_case_id(traces: list[Trace]) -> str | None:
+ for trace in traces:
+ for span in trace.spans.values():
+ for attrs in (span.attributes, span.resource.attributes):
+ value = coerce_key(attrs.get(EVAL_CASE_ID))
+ if value:
+ return value
+ return None
async def run_evaluation_from_traces(
@@ -80,130 +131,64 @@ async def run_evaluation_from_traces(
eval_set: EvalSet | None = None,
progress_callback: ProgressCallback | None = None,
trace_progress_callback: TraceProgressCallback | None = None,
+ group_key: str | None = None,
+ run_id: str | None = None,
) -> RunResult:
- """Evaluate pre-loaded traces. Skips file loading."""
- result = RunResult()
+ """Evaluate already loaded traces. ``group_key`` evaluates all of them as one conversation.
+ When evaluation result events are on (:mod:`agentevals.evaluation_events`), each group's results are
+ emitted as ``gen_ai.evaluation.result`` events parented to the evaluated spans; ``run_id`` is
+ attached to them when known.
+ """
+ result = RunResult()
if not traces:
result.errors.append("No traces provided.")
return result
- conversion_results = convert_traces(traces)
-
- trace_map = {t.trace_id: t for t in traces}
-
- perf_metrics_map: dict[str, dict[str, Any]] = {}
- for trace in traces:
- perf_metrics_map[trace.trace_id] = extract_performance_metrics(trace)
-
- total_traces = len(conversion_results)
+ cases = expected_conversations(eval_set)
+ if group_key is not None:
+ groups = [(group_key, sorted(traces, key=lambda t: t.start_time_unix_nano))]
+ else:
+ groups = evaluation_groups(traces, config.group_by, eval_set)
+ total = len(groups)
if progress_callback:
- await progress_callback(f"Evaluating {total_traces} trace{'s' if total_traces != 1 else ''}...")
+ await progress_callback(f"Evaluating {total} trace{'s' if total != 1 else ''}...")
- trace_semaphore = asyncio.Semaphore(config.max_concurrent_traces)
+ group_semaphore = asyncio.Semaphore(config.max_concurrent_traces)
eval_semaphore = asyncio.Semaphore(config.max_concurrent_evals)
- async def _evaluate_trace_bounded(idx: int, conv_result: ConversionResult) -> TraceResult:
- async with trace_semaphore:
+ async def _bounded(idx: int, key: str, members: list[Trace]) -> TraceResult:
+ async with group_semaphore:
if progress_callback:
- trace_id_short = (
- conv_result.trace_id[:12] + "..." if len(conv_result.trace_id) > 12 else conv_result.trace_id
- )
- await progress_callback(f"Trace {idx + 1}/{total_traces}: {trace_id_short}")
-
- trace = trace_map.get(conv_result.trace_id)
-
- trace_result = await _evaluate_trace(
- conv_result=conv_result,
+ short = key[:12] + "..." if len(key) > 12 else key
+ await progress_callback(f"Trace {idx + 1}/{total}: {short}")
+ return await _evaluate_group(
+ key=key,
+ traces=members,
evaluators=config.evaluators,
eval_set=eval_set,
+ cases=cases,
+ single_pairing=len(cases) == 1 and total == 1,
eval_semaphore=eval_semaphore,
progress_callback=progress_callback,
trace_progress_callback=trace_progress_callback,
- trace=trace,
- performance_metrics=perf_metrics_map.get(conv_result.trace_id),
+ run_id=run_id,
)
- if trace is not None:
- identity = extract_agent_identity(trace)
- trace_result.service_name = identity["service_name"]
- trace_result.agent_name = identity["agent_name"]
- return trace_result
-
- trace_results = await asyncio.gather(
- *[_evaluate_trace_bounded(idx, conv_result) for idx, conv_result in enumerate(conversion_results)],
+
+ outcomes = await asyncio.gather(
+ *[_bounded(i, key, members) for i, (key, members) in enumerate(groups)],
return_exceptions=True,
)
-
- for tr in trace_results:
- if isinstance(tr, Exception):
- logger.error("Unexpected error evaluating trace: %s", tr)
- result.errors.append(str(tr))
+ for outcome in outcomes:
+ if isinstance(outcome, BaseException):
+ logger.error("Unexpected error evaluating trace group: %s", outcome)
+ result.errors.append(str(outcome))
else:
- result.trace_results.append(tr)
+ result.trace_results.append(outcome)
if progress_callback:
await progress_callback("Evaluation complete")
-
- if result.trace_results:
- all_tokens: dict[str, list[int]] = {"prompt": [], "output": [], "total": []}
- all_overall_latencies: list[float] = []
- total_llm_calls = 0
- total_tool_calls = 0
- all_models: set[str] = set()
- total_cache_creation = 0
- total_cache_read = 0
-
- for tr in result.trace_results:
- if tr.performance_metrics:
- perf = tr.performance_metrics
- all_tokens["prompt"].append(perf["tokens"]["total_prompt"])
- all_tokens["output"].append(perf["tokens"]["total_output"])
- all_tokens["total"].append(perf["tokens"]["total"])
-
- overall_lat = perf["latency"]["overall"]
- if overall_lat.get("count", 0) > 0:
- all_overall_latencies.append(overall_lat["median"])
-
- counts = perf.get("counts", {})
- total_llm_calls += counts.get("llm_calls", 0)
- total_tool_calls += counts.get("tool_calls", 0)
-
- for m in perf.get("models", []):
- all_models.add(m)
-
- total_cache_creation += perf["tokens"].get("cache_creation_tokens", 0)
- total_cache_read += perf["tokens"].get("cache_read_tokens", 0)
-
- if all_tokens["total"]:
- trace_count = len(result.trace_results)
- result.performance_metrics = {
- "tokens": {
- "total_prompt": sum(all_tokens["prompt"]),
- "total_output": sum(all_tokens["output"]),
- "total": sum(all_tokens["total"]),
- "avg_per_trace": {
- "prompt": sum(all_tokens["prompt"]) / len(all_tokens["prompt"]),
- "output": sum(all_tokens["output"]) / len(all_tokens["output"]),
- },
- "cache_creation_tokens": total_cache_creation,
- "cache_read_tokens": total_cache_read,
- },
- "latency": {
- "overall_per_trace": _calc_percentiles(all_overall_latencies),
- }
- if all_overall_latencies
- else {},
- "counts": {
- "traces": trace_count,
- "total_llm_calls": total_llm_calls,
- "total_tool_calls": total_tool_calls,
- "avg_llm_calls_per_trace": total_llm_calls / trace_count,
- "avg_tool_calls_per_trace": total_tool_calls / trace_count,
- },
- "models": sorted(all_models) if all_models else [],
- "trace_count": trace_count,
- }
-
+ result.performance_metrics = _aggregate_performance(result.trace_results)
return result
@@ -212,9 +197,8 @@ async def run_evaluation(
progress_callback: ProgressCallback | None = None,
trace_progress_callback: TraceProgressCallback | None = None,
) -> RunResult:
- """Load traces from files, then evaluate. Delegates to ``run_evaluation_from_traces``."""
+ """Load trace files, then evaluate them with :func:`run_evaluation_from_traces`."""
load_errors: list[str] = []
-
all_traces: list[Trace] = []
for trace_file in config.trace_files:
try:
@@ -248,110 +232,118 @@ async def run_evaluation(
return result
-async def _evaluate_trace(
- conv_result: ConversionResult,
+async def _evaluate_group(
+ key: str,
+ traces: list[Trace],
evaluators: list[EvaluatorDef],
eval_set: EvalSet | None,
+ cases: list[ExpectedConversation],
eval_semaphore: asyncio.Semaphore,
progress_callback: ProgressCallback | None = None,
trace_progress_callback: TraceProgressCallback | None = None,
- trace=None,
- performance_metrics: dict[str, Any] | None = None,
+ single_pairing: bool = False,
+ run_id: str | None = None,
) -> TraceResult:
- trace_result = TraceResult(
- trace_id=conv_result.trace_id,
- num_invocations=len(conv_result.invocations),
- conversion_warnings=conv_result.warnings,
- )
+ trace_result = TraceResult(trace_id=traces[0].trace_id, group_key=key, trace_ids=[t.trace_id for t in traces])
+ try:
+ conversation: Conversation = extract_conversation(traces, key)
+ trace_result.performance_metrics = extract_performance_metrics(conversation, traces)
+ identity = extract_agent_identity(traces, conversation)
+ except Exception as exc:
+ logger.exception("Failed to extract turns for trace group %s", key)
+ trace_result.metric_results.append(MetricResult(metric_name="(all)", error=f"Turn extraction failed: {exc}"))
+ return trace_result
- if performance_metrics:
- trace_result.performance_metrics = performance_metrics
+ trace_result.service_name = identity["service_name"]
+ trace_result.agent_name = identity["agent_name"]
+ trace_result.num_invocations = len(conversation.turns)
+ trace_result.conversation_id = conversation.conversation_id
+ trace_result.turn_refs = [TurnRef(trace_id=t.ref.trace_id, span_id=t.ref.span_id) for t in conversation.turns]
+ trace_result.conversion_warnings = sorted(
+ {w for trace in traces for w in trace.warnings} | {w for t in conversation.turns for w in t.warnings}
+ )
- if not conv_result.invocations:
+ if not conversation.turns:
trace_result.metric_results.append(
- MetricResult(
- metric_name="(all)",
- error="No invocations extracted from trace.",
- )
+ MetricResult(metric_name="(all)", error="No invocations extracted from trace.")
)
return trace_result
- actual_invocations = conv_result.invocations
-
- expected_invocations: list[Invocation] | None = None
- if eval_set:
- expected_invocations = _find_expected_invocations(actual_invocations, eval_set)
-
- async def _append_result(result: MetricResult) -> MetricResult:
- trace_result.metric_results.append(result)
- if trace_progress_callback:
- await trace_progress_callback(trace_result)
- return result
+ expected: ExpectedConversation | None = None
+ expected_reason: str | None = "no eval set provided"
+ if eval_set is not None:
+ match = select_case(conversation, cases, _explicit_case_id(traces), single_pairing=single_pairing)
+ expected, expected_reason = match.case, match.reason
+ if expected is not None:
+ trace_result.eval_case_id = expected.case_id
+ trace_result.eval_case_match = match.method
+ else:
+ logger.warning("Trace group %s: %s", key, match.reason)
- async def _eval_with_semaphore(evaluator_def: EvaluatorDef) -> MetricResult:
+ async def _run(evaluator_def: EvaluatorDef) -> None:
async with eval_semaphore:
if progress_callback:
await progress_callback(f"Running {evaluator_def.name}...")
from .custom_evaluators import evaluate_custom_evaluator
t0 = time.monotonic()
- result = await evaluate_custom_evaluator(
+ metric = await evaluate_custom_evaluator(
evaluator_def=evaluator_def,
- actual_invocations=actual_invocations,
- expected_invocations=expected_invocations,
- performance_metrics=performance_metrics,
+ actual=conversation,
+ expected=expected,
+ performance_metrics=trace_result.performance_metrics,
+ expected_reason=expected_reason,
)
- result.duration_ms = (time.monotonic() - t0) * 1000
- return await _append_result(result)
-
- tasks = [_eval_with_semaphore(evaluator_def) for evaluator_def in evaluators]
-
- await asyncio.gather(*tasks)
+ metric.duration_ms = (time.monotonic() - t0) * 1000
+ trace_result.metric_results.append(metric)
+ if trace_progress_callback:
+ await trace_progress_callback(trace_result)
+ await asyncio.gather(*[_run(e) for e in evaluators])
+
+ emitter = emit.get_emitter()
+ if emitter is not None:
+ emitter.emit(
+ conversation=conversation,
+ metrics=trace_result.metric_results,
+ evaluators=evaluators,
+ spans={(s.trace_id, s.span_id): s for t in traces for s in t.spans.values()},
+ eval_case_id=trace_result.eval_case_id,
+ eval_set_id=eval_set.eval_set_id if eval_set is not None else None,
+ run_id=run_id,
+ )
return trace_result
-def _find_expected_invocations(
- actual_invocations: list[Invocation],
- eval_set: EvalSet,
-) -> list[Invocation] | None:
- """Match actual invocations to an eval case. Uses the sole eval case if
- there's only one, otherwise matches by user content text."""
- if not eval_set.eval_cases:
- return None
-
- if len(eval_set.eval_cases) == 1:
- case = eval_set.eval_cases[0]
- if case.conversation:
- return case.conversation
- return None
-
- actual_user_text = _get_user_text(actual_invocations[0]) if actual_invocations else None
- if not actual_user_text:
- case = eval_set.eval_cases[0]
- return case.conversation if case.conversation else None
-
- for case in eval_set.eval_cases:
- if not case.conversation:
- continue
- expected_user_text = _get_user_text(case.conversation[0])
- if expected_user_text and _text_matches(actual_user_text, expected_user_text):
- return case.conversation
-
- logger.warning(
- "No matching eval case found for user text: '%s'. Using first eval case.",
- actual_user_text[:100],
- )
- case = eval_set.eval_cases[0]
- return case.conversation if case.conversation else None
-
-
-def _get_user_text(invocation: Invocation) -> str | None:
- if not invocation.user_content or not invocation.user_content.parts:
+def _aggregate_performance(trace_results: list[TraceResult]) -> dict[str, Any] | None:
+ perfs = [tr.performance_metrics for tr in trace_results if tr.performance_metrics]
+ if not perfs:
return None
- texts = [p.text for p in invocation.user_content.parts if p.text]
- return " ".join(texts) if texts else None
-
-
-def _text_matches(a: str, b: str) -> bool:
- return a.strip().lower() == b.strip().lower()
+ prompt = [p["tokens"]["total_prompt"] for p in perfs]
+ output = [p["tokens"]["total_output"] for p in perfs]
+ total = [p["tokens"]["total"] for p in perfs]
+ latencies = [p["latency"]["overall"]["median"] for p in perfs if p["latency"]["overall"].get("count", 0) > 0]
+ llm_calls = sum(p["counts"].get("llm_calls", 0) for p in perfs)
+ tool_calls = sum(p["counts"].get("tool_calls", 0) for p in perfs)
+ models = sorted({m for p in perfs for m in p.get("models", [])})
+ count = len(trace_results)
+ return {
+ "tokens": {
+ "total_prompt": sum(prompt),
+ "total_output": sum(output),
+ "total": sum(total),
+ "avg_per_trace": {"prompt": sum(prompt) / len(prompt), "output": sum(output) / len(output)},
+ "cache_creation_tokens": sum(p["tokens"].get("cache_creation_tokens", 0) for p in perfs),
+ "cache_read_tokens": sum(p["tokens"].get("cache_read_tokens", 0) for p in perfs),
+ },
+ "latency": {"overall_per_trace": _calc_percentiles(latencies)} if latencies else {},
+ "counts": {
+ "traces": count,
+ "total_llm_calls": llm_calls,
+ "total_tool_calls": tool_calls,
+ "avg_llm_calls_per_trace": llm_calls / count,
+ "avg_tool_calls_per_trace": tool_calls / count,
+ },
+ "models": models,
+ "trace_count": count,
+ }
diff --git a/src/agentevals/sdk.py b/src/agentevals/sdk.py
index 77ddd14f..a50c15ef 100644
--- a/src/agentevals/sdk.py
+++ b/src/agentevals/sdk.py
@@ -1,9 +1,10 @@
"""High-level SDK for streaming agent traces to the agentevals UI.
-Wraps OpenTelemetry, WebSocket, and processor boilerplate into a simple
-context manager or decorator API.
+Each session exports the spans and GenAI log events produced inside it to the agentevals OTLP
+receiver (``agentevals serve``, port 4318), stamped with the session name, eval set id and run
+id. The application's own OpenTelemetry exporters are unaffected.
-Usage (context manager — primary API):
+Usage (context manager, the primary API):
from agentevals import AgentEvals
@@ -12,7 +13,7 @@
with app.session(eval_set_id="my-eval"):
result = my_agent.invoke("Hello!")
-Usage (decorator — shorthand for simple agents):
+Usage (decorator, shorthand for simple agents):
app = AgentEvals(eval_set_id="my-eval")
@@ -23,21 +24,15 @@ def my_agent(prompt):
app.run(["Hello!", "Tell me a joke"])
Disabling streaming:
- Pass ``streaming=False`` to skip all WebSocket/OTel setup. The context
- managers become no-ops and your agent code runs without any agentevals
- connection. Useful for gating on an env var so the SDK stays wired up
- in code but only streams when the dev server is running::
+ Pass ``streaming=False`` to skip all export setup. The context managers become no-ops and
+ your agent code runs without any agentevals connection::
app = AgentEvals(streaming=os.getenv("AGENTEVALS_STREAM", "1") == "1")
-Provider lifecycle:
- The SDK adds an ``AgentEvalsStreamingProcessor`` to the active
- ``TracerProvider`` for the duration of a session. After shutdown the
- processor is inert (``on_end`` short-circuits) but remains registered
- because OTel's ``TracerProvider`` has no ``remove_span_processor``
- API. This is harmless for typical dev workflows. If you need a clean
- provider between sessions, pass a fresh ``TracerProvider`` via the
- ``tracer_provider`` parameter.
+Endpoint:
+ ``endpoint=`` wins, then ``AGENTEVALS_OTLP_ENDPOINT``, then ``http://localhost:4318``.
+ ``OTEL_EXPORTER_OTLP_*`` is never read, so credentials meant for another backend are never
+ sent to agentevals.
"""
from __future__ import annotations
@@ -46,7 +41,6 @@ def my_agent(prompt):
import inspect
import logging
import os
-import threading
import uuid
from collections.abc import Callable
from contextlib import asynccontextmanager, contextmanager
@@ -54,25 +48,25 @@ def my_agent(prompt):
from datetime import datetime
from typing import TYPE_CHECKING, Any
+from .otel import sdk_export
+from .otel.sdk_export import LEGACY_WS_URL
+
if TYPE_CHECKING:
from opentelemetry.sdk._logs import LoggerProvider
from opentelemetry.sdk.trace import TracerProvider as SdkTracerProvider
- from .streaming.processor import AgentEvalsLogStreamingProcessor, AgentEvalsStreamingProcessor
-
__all__ = ["AgentEvals"]
logger = logging.getLogger(__name__)
-_DEFAULT_WS_URL = "ws://localhost:8001/ws/traces"
+_DEFAULT_WS_URL = LEGACY_WS_URL
@dataclass(slots=True)
class _OtelSetup:
tracer_provider: SdkTracerProvider
- processor: AgentEvalsStreamingProcessor
+ export: Any
logger_provider: LoggerProvider | None = field(default=None)
- log_processor: AgentEvalsLogStreamingProcessor | None = field(default=None)
class AgentEvals:
@@ -86,8 +80,10 @@ def __init__(
auto_instrument: bool = True,
capture_message_content: bool = True,
streaming: bool = True,
+ endpoint: str | None = None,
):
self.ws_url = ws_url
+ self.endpoint = endpoint
self.eval_set_id = eval_set_id
self.metadata = metadata or {}
self.auto_instrument = auto_instrument
@@ -146,66 +142,28 @@ def session(
metadata: dict[str, Any] | None = None,
tracer_provider: SdkTracerProvider | None = None,
):
- """Sync context manager that sets up OTel streaming.
+ """Sync context manager that exports the spans and GenAI events produced inside it.
Args:
eval_set_id: Evaluation set ID for matching against a golden session.
session_name: Custom session name (auto-generated if omitted).
- metadata: Custom metadata sent with the session.
+ metadata: Custom metadata shown with the session.
tracer_provider: Explicit TracerProvider to use (e.g. from StrandsTelemetry).
Falls back to the global provider, then creates a new one.
"""
eff_session_name = session_name or self._generate_session_id()
-
if not self.streaming:
logger.debug("Streaming disabled, running without agentevals connection")
yield eff_session_name
return
- eff_eval_set_id = eval_set_id or self.eval_set_id
- eff_metadata = {**self.metadata, **(metadata or {})}
-
- setup = self._setup_otel(eff_session_name, tracer_provider)
-
- loop = asyncio.new_event_loop()
- thread = threading.Thread(
- target=lambda: (asyncio.set_event_loop(loop), loop.run_forever()),
- daemon=True,
- )
- thread.start()
-
- try:
- future = asyncio.run_coroutine_threadsafe(
- setup.processor.connect(eval_set_id=eff_eval_set_id, metadata=eff_metadata),
- loop,
- )
- future.result(timeout=10)
- except Exception as exc:
- loop.call_soon_threadsafe(loop.stop)
- thread.join(timeout=5)
- raise ConnectionError(
- f"[agentevals] Could not connect to {self.ws_url}. Is 'agentevals serve --dev' running?\n {exc}"
- ) from exc
-
- setup.tracer_provider.add_span_processor(setup.processor)
- if setup.logger_provider and setup.log_processor:
- setup.logger_provider.add_log_record_processor(setup.log_processor)
-
- logger.info("Streaming to %s (session: %s)", self.ws_url, eff_session_name)
-
+ context, setup = self._open(eff_session_name, eval_set_id, metadata, tracer_provider)
+ token = sdk_export.enter(context)
try:
yield eff_session_name
finally:
- setup.tracer_provider.force_flush()
- if setup.logger_provider:
- setup.logger_provider.force_flush()
- fut = asyncio.run_coroutine_threadsafe(setup.processor.shutdown_async(), loop)
- try:
- fut.result(timeout=10)
- except Exception as exc:
- logger.warning("Shutdown error: %s", exc)
- loop.call_soon_threadsafe(loop.stop)
- thread.join(timeout=5)
+ sdk_export.leave(context, token)
+ sdk_export.flush(setup.export)
@asynccontextmanager
async def session_async(
@@ -215,50 +173,53 @@ async def session_async(
metadata: dict[str, Any] | None = None,
tracer_provider: SdkTracerProvider | None = None,
):
- """Async context manager that sets up OTel streaming.
+ """Async context manager that exports the spans and GenAI events produced inside it.
Args:
eval_set_id: Evaluation set ID for matching against a golden session.
session_name: Custom session name (auto-generated if omitted).
- metadata: Custom metadata sent with the session.
+ metadata: Custom metadata shown with the session.
tracer_provider: Explicit TracerProvider to use. Falls back to the global
provider, then creates a new one.
"""
eff_session_name = session_name or self._generate_session_id()
-
if not self.streaming:
logger.debug("Streaming disabled, running without agentevals connection")
yield eff_session_name
return
- eff_eval_set_id = eval_set_id or self.eval_set_id
- eff_metadata = {**self.metadata, **(metadata or {})}
-
- setup = self._setup_otel(eff_session_name, tracer_provider)
+ context, setup = await asyncio.to_thread(self._open, eff_session_name, eval_set_id, metadata, tracer_provider)
+ token = sdk_export.enter(context)
+ try:
+ yield eff_session_name
+ finally:
+ sdk_export.leave(context, token)
+ await asyncio.to_thread(sdk_export.flush, setup.export)
+ def _open(
+ self,
+ session_name: str,
+ eval_set_id: str | None,
+ metadata: dict[str, Any] | None,
+ tracer_provider: SdkTracerProvider | None,
+ ) -> tuple[sdk_export.SessionContext, _OtelSetup]:
+ endpoint = sdk_export.resolve_endpoint(self.endpoint, self.ws_url)
try:
- await setup.processor.connect(eval_set_id=eff_eval_set_id, metadata=eff_metadata)
- except Exception as exc:
+ sdk_export.preflight(endpoint)
+ except ConnectionError as exc:
raise ConnectionError(
- f"[agentevals] Could not connect to {self.ws_url}. Is 'agentevals serve --dev' running?\n {exc}"
+ f"[agentevals] Could not reach the OTLP receiver at {endpoint}. "
+ f"Is 'agentevals serve --dev' running?\n {exc}"
) from exc
-
- setup.tracer_provider.add_span_processor(setup.processor)
- if setup.logger_provider and setup.log_processor:
- setup.logger_provider.add_log_record_processor(setup.log_processor)
-
- logger.info("Streaming to %s (session: %s)", self.ws_url, eff_session_name)
-
- try:
- yield eff_session_name
- finally:
- setup.tracer_provider.force_flush()
- if setup.logger_provider:
- setup.logger_provider.force_flush()
- try:
- await setup.processor.shutdown_async()
- except Exception as exc:
- logger.warning("Shutdown error: %s", exc)
+ setup = self._setup_otel(session_name, tracer_provider, endpoint=endpoint)
+ context = sdk_export.SessionContext(
+ name=session_name,
+ run_id=uuid.uuid4().hex,
+ eval_set_id=eval_set_id or self.eval_set_id,
+ metadata={**self.metadata, **(metadata or {})},
+ )
+ logger.info("Streaming to %s (session: %s)", endpoint, session_name)
+ return context, setup
# --- Decorator run helpers ---
@@ -320,23 +281,22 @@ def _setup_otel(
self,
session_name: str,
explicit_tracer_provider: SdkTracerProvider | None = None,
+ *,
+ endpoint: str | None = None,
) -> _OtelSetup:
- """Configure OTel providers and create a streaming processor.
+ """Resolve the providers and register the session exporters on them (once per provider).
Provider resolution order:
1. ``explicit_tracer_provider`` if given
2. Existing global ``TracerProvider`` (e.g. set by StrandsTelemetry)
3. New ``TracerProvider`` created and set globally
- A ``LoggerProvider`` is only created when the OpenAI OTel instrumentor
- is installed, since it's the only pattern that emits message content
- via OTel log records rather than span events.
+ The global SDK ``LoggerProvider`` is reused, or created and set, so GenAI events emitted
+ as log records (OpenAI v2, util-genai based instrumentations) reach agentevals too.
"""
from opentelemetry import trace
from opentelemetry.sdk.trace import TracerProvider
- from .streaming.processor import AgentEvalsLogStreamingProcessor, AgentEvalsStreamingProcessor
-
if self.capture_message_content:
os.environ.setdefault("OTEL_INSTRUMENTATION_GENAI_CAPTURE_MESSAGE_CONTENT", "true")
@@ -348,54 +308,30 @@ def _setup_otel(
tracer_provider = TracerProvider()
trace.set_tracer_provider(tracer_provider)
- processor = AgentEvalsStreamingProcessor(
- ws_url=self.ws_url,
- session_id=session_name,
- trace_id=uuid.uuid4().hex,
- )
-
logger_provider = None
- log_processor = None
- if self._should_setup_log_provider():
- try:
- from opentelemetry._logs import get_logger_provider, set_logger_provider
- from opentelemetry.sdk._logs import LoggerProvider
-
- existing_lp = get_logger_provider()
- if isinstance(existing_lp, LoggerProvider):
- logger_provider = existing_lp
- else:
- logger_provider = LoggerProvider()
- set_logger_provider(logger_provider)
-
- log_processor = AgentEvalsLogStreamingProcessor(processor)
- except ImportError:
- pass
-
- if self.auto_instrument:
- self._auto_instrument()
+ try:
+ from opentelemetry._logs import get_logger_provider, set_logger_provider
+ from opentelemetry.sdk._logs import LoggerProvider
+
+ existing = get_logger_provider()
+ if isinstance(existing, LoggerProvider):
+ logger_provider = existing
+ else:
+ logger_provider = LoggerProvider()
+ set_logger_provider(logger_provider)
+ except ImportError:
+ pass
- return _OtelSetup(
- tracer_provider=tracer_provider,
- processor=processor,
- logger_provider=logger_provider,
- log_processor=log_processor,
+ export = sdk_export.install(
+ tracer_provider,
+ endpoint or sdk_export.resolve_endpoint(self.endpoint, self.ws_url),
+ logger_provider,
)
- def _should_setup_log_provider(self) -> bool:
- """Check whether the OpenAI OTel instrumentor is installed.
-
- Only the logs-based GenAI semconv pattern (used by
- ``opentelemetry-instrumentation-openai-v2``) requires a
- ``LoggerProvider``. Strands and ADK emit content via span
- events or native attributes and don't need one.
- """
- try:
- import opentelemetry.instrumentation.openai_v2 # noqa: F401
+ if self.auto_instrument:
+ self._auto_instrument()
- return True
- except ImportError:
- return False
+ return _OtelSetup(tracer_provider=tracer_provider, export=export, logger_provider=logger_provider)
def _auto_instrument(self) -> None:
"""Best-effort discovery and activation of OTel instrumentors.
diff --git a/src/agentevals/streaming/__init__.py b/src/agentevals/streaming/__init__.py
index 9db25ace..5c39e065 100644
--- a/src/agentevals/streaming/__init__.py
+++ b/src/agentevals/streaming/__init__.py
@@ -1,120 +1,67 @@
-"""Live streaming support for agentevals."""
+"""Live streaming support for agentevals.
+
+``enable_streaming`` and ``enable_streaming_sync`` are deprecated wrappers kept for existing
+callers; use :class:`agentevals.AgentEvals` sessions instead.
+"""
from __future__ import annotations
-import asyncio
-import logging
-import uuid
+import warnings
from contextlib import asynccontextmanager
+from typing import Any
+
+from ..otel.sdk_export import LEGACY_WS_URL
+
-logger = logging.getLogger(__name__)
+def _deprecated(name: str) -> None:
+ warnings.warn(
+ f"{name} is deprecated and will be removed in a future version. "
+ "Use AgentEvals().session() or AgentEvals().session_async() instead.",
+ DeprecationWarning,
+ stacklevel=3,
+ )
@asynccontextmanager
async def enable_streaming(
- ws_url: str = "ws://localhost:8001/ws/traces",
+ ws_url: str = LEGACY_WS_URL,
eval_set_id: str | None = None,
session_name: str | None = None,
):
- """Enable live streaming of OTel spans to agentevals dev server.
+ """Deprecated: stream the spans produced inside the block to the agentevals dev server."""
+ from ..sdk import AgentEvals
- Usage:
- from agentevals.streaming import enable_streaming
+ _deprecated("enable_streaming")
+ async with AgentEvals(ws_url=ws_url, auto_instrument=False).session_async(
+ eval_set_id=eval_set_id, session_name=session_name
+ ) as name:
+ yield name
- async with enable_streaming("ws://localhost:8001/ws/traces", eval_set_id="my-eval"):
- # Your agent code here
- agent.invoke("...")
- """
- try:
- from opentelemetry import trace
- from opentelemetry.sdk.trace import TracerProvider
- from .processor import AgentEvalsStreamingProcessor
- except ImportError:
- logger.error("opentelemetry-sdk required for streaming. Install with: pip install opentelemetry-sdk websockets")
- raise
+class StreamingHandle:
+ """An open session started by :func:`enable_streaming_sync`; call :meth:`shutdown` to end it."""
- session_id = session_name or f"session-{uuid.uuid4().hex[:8]}"
- trace_id = uuid.uuid4().hex
+ def __init__(self, cm: Any, session_id: str):
+ self._cm = cm
+ self.session_id = session_id
- processor = AgentEvalsStreamingProcessor(ws_url, session_id, trace_id)
- await processor.connect(eval_set_id=eval_set_id)
-
- tracer_provider = trace.get_tracer_provider()
- if isinstance(tracer_provider, TracerProvider):
- tracer_provider.add_span_processor(processor)
- else:
- logger.warning(
- "No TracerProvider found. Streaming may not work. Ensure OpenTelemetry is configured in your agent."
- )
-
- try:
- yield session_id
- finally:
- await processor.shutdown_async()
+ def shutdown(self) -> None:
+ if self._cm is not None:
+ cm, self._cm = self._cm, None
+ cm.__exit__(None, None, None)
def enable_streaming_sync(
- ws_url: str = "ws://localhost:8001/ws/traces",
+ ws_url: str = LEGACY_WS_URL,
eval_set_id: str | None = None,
session_name: str | None = None,
-):
- """Synchronous wrapper for enable_streaming (sets up processor but doesn't manage lifecycle).
-
- .. deprecated:: 0.2.0
- Use the async :func:`enable_streaming` context manager instead.
- This function modifies the global event loop and can interfere with existing async code.
-
- For use in non-async code. Note: You need to manually manage the event loop.
-
- Args:
- ws_url: WebSocket URL of the agentevals dev server
- eval_set_id: Optional ID of eval set to use for evaluation
- session_name: Optional custom session name
-
- Returns:
- AgentEvalsStreamingProcessor instance that must be manually shut down
-
- Warning:
- This function is deprecated and will be removed in a future version.
- Prefer using the async version for better compatibility.
- """
- import warnings
-
- warnings.warn(
- "enable_streaming_sync is deprecated and will be removed in a future version. "
- "Use the async enable_streaming() context manager instead.",
- DeprecationWarning,
- stacklevel=2,
- )
- try:
- from opentelemetry import trace
- from opentelemetry.sdk.trace import TracerProvider
-
- from .processor import AgentEvalsStreamingProcessor
- except ImportError:
- logger.error("opentelemetry-sdk required for streaming. Install with: pip install opentelemetry-sdk websockets")
- return
-
- session_id = session_name or f"session-{uuid.uuid4().hex[:8]}"
- trace_id = uuid.uuid4().hex
-
- processor = AgentEvalsStreamingProcessor(ws_url, session_id, trace_id)
-
- loop = asyncio.new_event_loop()
- asyncio.set_event_loop(loop)
- loop.run_until_complete(processor.connect(eval_set_id=eval_set_id))
-
- tracer_provider = trace.get_tracer_provider()
- if isinstance(tracer_provider, TracerProvider):
- tracer_provider.add_span_processor(processor)
-
- print("[agentevals] Connected to dev server")
- print(f"[agentevals] Session: {session_id}")
- if eval_set_id:
- print(f"[agentevals] Eval set: {eval_set_id}")
+) -> StreamingHandle:
+ """Deprecated: start a session in the current context and return a handle that ends it."""
+ from ..sdk import AgentEvals
- return processor
+ _deprecated("enable_streaming_sync")
+ cm = AgentEvals(ws_url=ws_url, auto_instrument=False).session(eval_set_id=eval_set_id, session_name=session_name)
+ return StreamingHandle(cm, cm.__enter__())
-__all__ = ["enable_streaming", "enable_streaming_sync"]
+__all__ = ["StreamingHandle", "enable_streaming", "enable_streaming_sync"]
diff --git a/src/agentevals/streaming/incremental_processor.py b/src/agentevals/streaming/incremental_processor.py
deleted file mode 100644
index c380987d..00000000
--- a/src/agentevals/streaming/incremental_processor.py
+++ /dev/null
@@ -1,341 +0,0 @@
-"""Incremental span processor for extracting conversation elements in real-time.
-
-Processes OTLP spans as they arrive and extracts:
-- User input from call_llm spans
-- Tool calls from execute_tool spans
-- Agent responses from call_llm spans
-- Token usage information
-
-This enables real-time display of agent execution progress without waiting for
-session completion.
-"""
-
-from __future__ import annotations
-
-import logging
-
-from ..extraction import (
- extract_agent_response_from_attrs,
- extract_token_usage_from_attrs,
- extract_tool_call_from_attrs,
- extract_tool_result_from_attrs,
- extract_user_text_from_attrs,
- flatten_otlp_attributes,
- parse_tool_response_content,
-)
-from ..trace_attrs import (
- ADK_INVOCATION_ID,
- ADK_SCOPE_VALUE,
- OTEL_GENAI_REQUEST_MODEL,
- OTEL_GENAI_TOOL_NAME,
- OTEL_SCOPE,
-)
-from ..utils.genai_messages import parse_json_attr
-
-logger = logging.getLogger(__name__)
-
-
-def _normalize_ts(raw_ts) -> float:
- """Normalize a contemporary Unix timestamp by inferring its unit from magnitude."""
- try:
- timestamp = int(raw_ts)
- except (TypeError, ValueError):
- return 0.0
- if timestamp >= 1e17:
- return timestamp / 1e9
- if timestamp >= 1e14:
- return timestamp / 1e6
- if timestamp >= 1e11:
- return timestamp / 1e3
- return float(timestamp)
-
-
-class IncrementalInvocationExtractor:
- """Extracts conversation elements from spans and logs as they arrive."""
-
- def __init__(self):
- self.seen_user_input = set()
- self.seen_tool_calls = {}
- self.seen_agent_response = set()
- self.llm_spans_by_invocation = {}
- self.token_totals = {}
- self.current_invocation_id = None
- self.seen_message_contents = set() # Track message contents to avoid duplicates
- self.tool_names_by_id: dict[str, str] = {} # tool_call_id -> tool_name
-
- def process_span(self, span: dict) -> list[dict]:
- """Process a single OTLP span and return conversation updates to broadcast.
-
- Args:
- span: OTLP JSON span dictionary
-
- Returns:
- List of update events to broadcast via SSE
- """
- updates = []
- operation_name = span.get("name", "")
-
- attributes = flatten_otlp_attributes(span.get("attributes", []))
-
- is_adk = attributes.get(OTEL_SCOPE) == ADK_SCOPE_VALUE
- is_genai_llm = bool(attributes.get(OTEL_GENAI_REQUEST_MODEL))
- is_genai_tool = bool(attributes.get(OTEL_GENAI_TOOL_NAME))
-
- if not (is_adk or is_genai_llm or is_genai_tool):
- return updates
-
- invocation_id = self._get_invocation_id(span, attributes)
- if not invocation_id:
- return updates
-
- self.current_invocation_id = invocation_id
-
- is_llm = operation_name.startswith("call_llm") or is_genai_llm
- if is_llm:
- if invocation_id not in self.llm_spans_by_invocation:
- self.llm_spans_by_invocation[invocation_id] = []
- self.llm_spans_by_invocation[invocation_id].append(span)
-
- if invocation_id not in self.seen_user_input:
- user_text = extract_user_text_from_attrs(attributes)
- if user_text:
- message_key = f"user:{user_text.strip()}"
- if message_key not in self.seen_message_contents:
- logger.debug(f"Extracted user input for invocation {invocation_id}")
- updates.append(
- {
- "type": "user_input",
- "invocationId": invocation_id,
- "text": user_text,
- "timestamp": int(span.get("startTimeUnixNano", 0)) / 1e9,
- }
- )
- self.seen_message_contents.add(message_key)
- self.seen_user_input.add(invocation_id)
-
- agent_text = extract_agent_response_from_attrs(attributes)
- if agent_text and invocation_id not in self.seen_agent_response:
- message_key = f"agent:{agent_text.strip()}"
- if message_key not in self.seen_message_contents:
- logger.debug(f"Extracted agent response for invocation {invocation_id}")
- updates.append(
- {
- "type": "agent_response",
- "invocationId": invocation_id,
- "text": agent_text,
- "timestamp": int(span.get("endTimeUnixNano", 0)) / 1e9,
- }
- )
- self.seen_message_contents.add(message_key)
- self.seen_agent_response.add(invocation_id)
-
- in_toks, out_toks, model = extract_token_usage_from_attrs(attributes)
- if in_toks or out_toks:
- if invocation_id not in self.token_totals:
- self.token_totals[invocation_id] = {
- "inputTokens": 0,
- "outputTokens": 0,
- "model": model,
- }
-
- self.token_totals[invocation_id]["inputTokens"] += in_toks
- self.token_totals[invocation_id]["outputTokens"] += out_toks
-
- logger.debug("Token update for %s: +%d input, +%d output", invocation_id, in_toks, out_toks)
-
- updates.append(
- {
- "type": "token_update",
- "invocationId": invocation_id,
- "inputTokens": in_toks,
- "outputTokens": out_toks,
- "model": model,
- }
- )
-
- elif operation_name.startswith("execute_tool") or is_genai_tool:
- span_id = span.get("spanId", "")
- tool_call = extract_tool_call_from_attrs(attributes, operation_name, span_id=span_id)
- if tool_call:
- call_id = tool_call["id"]
- if invocation_id not in self.seen_tool_calls:
- self.seen_tool_calls[invocation_id] = set()
-
- self.tool_names_by_id[call_id] = tool_call["name"]
-
- if call_id not in self.seen_tool_calls[invocation_id]:
- updates.append(
- {
- "type": "tool_call",
- "invocationId": invocation_id,
- "toolCall": tool_call,
- "timestamp": int(span.get("startTimeUnixNano", 0)) / 1e9,
- }
- )
- self.seen_tool_calls[invocation_id].add(call_id)
-
- tool_result = extract_tool_result_from_attrs(attributes)
- if tool_result:
- updates.append(
- {
- "type": "tool_result",
- "invocationId": invocation_id,
- "toolCallId": call_id,
- "toolName": tool_call["name"],
- "response": tool_result["response"],
- "isError": tool_result["isError"],
- "timestamp": int(span.get("endTimeUnixNano", 0)) / 1e9,
- }
- )
-
- return updates
-
- def process_log(self, log_event: dict) -> list[dict]:
- """Process a GenAI log event and extract conversation updates.
-
- Args:
- log_event: Log event dict with event_name, body, attributes
-
- Returns:
- List of update events to broadcast via SSE
- """
- updates = []
- event_name = log_event.get("event_name", "")
- body = log_event.get("body", {})
-
- invocation_id = log_event.get("span_id")
- if not invocation_id:
- invocation_id = self.current_invocation_id
- if not invocation_id:
- return updates
-
- # Extract user messages (gen_ai.user.message)
- if event_name == "gen_ai.user.message":
- if isinstance(body, dict) and "content" in body:
- user_text = body["content"]
- message_key = f"user:{user_text.strip() if isinstance(user_text, str) else user_text}"
- if user_text and message_key not in self.seen_message_contents:
- logger.debug(f"Extracted user input from log for invocation {invocation_id}")
- updates.append(
- {
- "type": "user_input",
- "invocationId": invocation_id,
- "text": user_text,
- "timestamp": _normalize_ts(log_event.get("timestamp", 0)),
- }
- )
- self.seen_message_contents.add(message_key)
- self.seen_user_input.add(invocation_id)
-
- # Extract assistant messages (gen_ai.assistant.message or gen_ai.choice)
- elif event_name in ("gen_ai.assistant.message", "gen_ai.choice"):
- agent_text = None
-
- if isinstance(body, dict):
- # Check for direct content
- if "content" in body:
- agent_text = body["content"]
- # Check for message.content (gen_ai.choice format)
- elif "message" in body and isinstance(body["message"], dict):
- if "content" in body["message"]:
- agent_text = body["message"]["content"]
-
- if agent_text:
- message_key = f"agent:{agent_text.strip() if isinstance(agent_text, str) else agent_text}"
- if message_key not in self.seen_message_contents:
- logger.debug(f"Extracted agent response from log for invocation {invocation_id}")
- updates.append(
- {
- "type": "agent_response",
- "invocationId": invocation_id,
- "text": agent_text,
- "timestamp": _normalize_ts(log_event.get("timestamp", 0)),
- }
- )
- self.seen_message_contents.add(message_key)
- self.seen_agent_response.add(invocation_id)
-
- # Extract tool calls from assistant message
- if isinstance(body, dict):
- tool_calls = None
- if "tool_calls" in body:
- tool_calls = body["tool_calls"]
- elif "message" in body and isinstance(body["message"], dict) and "tool_calls" in body["message"]:
- tool_calls = body["message"]["tool_calls"]
-
- if tool_calls and isinstance(tool_calls, list):
- for tc in tool_calls:
- if isinstance(tc, dict):
- tool_id = tc.get("id", "unknown")
- tool_key = f"tool:{tool_id}"
-
- tc_name = (
- tc.get("function", {}).get("name", "unknown")
- if "function" in tc
- else tc.get("name", "unknown")
- )
- self.tool_names_by_id[tool_id] = tc_name
-
- if tool_key not in self.seen_message_contents:
- tool_call = {
- "id": tool_id,
- "name": tc_name,
- "args": {},
- }
-
- if "function" in tc and "arguments" in tc["function"]:
- parsed = parse_json_attr(
- tc["function"]["arguments"], "tool_call.function.arguments"
- )
- if isinstance(parsed, dict):
- tool_call["args"] = parsed
-
- logger.debug(f"Extracted tool call from log for invocation {invocation_id}")
- updates.append(
- {
- "type": "tool_call",
- "invocationId": invocation_id,
- "toolCall": tool_call,
- "timestamp": _normalize_ts(log_event.get("timestamp", 0)),
- }
- )
- self.seen_message_contents.add(tool_key)
-
- if invocation_id not in self.seen_tool_calls:
- self.seen_tool_calls[invocation_id] = set()
- self.seen_tool_calls[invocation_id].add(tool_id)
-
- # Extract tool results from gen_ai.tool.message logs
- elif event_name == "gen_ai.tool.message":
- if isinstance(body, dict):
- tool_id = body.get("id", "unknown")
- tool_name = body.get("name") or self.tool_names_by_id.get(tool_id, "unknown")
- content = body.get("content")
- if content is not None:
- response = parse_tool_response_content(content)
- result_key = f"tool_result:{tool_id}"
- if result_key not in self.seen_message_contents:
- is_error = bool(response.get("isError", False))
- updates.append(
- {
- "type": "tool_result",
- "invocationId": invocation_id,
- "toolCallId": tool_id,
- "toolName": tool_name,
- "response": response,
- "isError": is_error,
- "timestamp": _normalize_ts(log_event.get("timestamp", 0)),
- }
- )
- self.seen_message_contents.add(result_key)
-
- return updates
-
- def _get_invocation_id(self, span: dict, attributes: dict) -> str | None:
- invocation_id = attributes.get(ADK_INVOCATION_ID)
- if invocation_id:
- return invocation_id
- parent_span_id = span.get("parentSpanId")
- if parent_span_id:
- return parent_span_id
- return span.get("spanId")
diff --git a/src/agentevals/streaming/manager.py b/src/agentevals/streaming/manager.py
new file mode 100644
index 00000000..5ea4ba81
--- /dev/null
+++ b/src/agentevals/streaming/manager.py
@@ -0,0 +1,578 @@
+"""Live session manager: ingest into the store, completion ticker, recompute and the SSE diff.
+
+The store is synchronous; this module owns the event loop side. Exports are applied one routing
+unit at a time, yielding the loop on a time budget so a large export never holds it. Conversations
+are recomputed on frozen snapshots in a worker thread, with turns memoized per trace version, and
+the result is diffed against what each session already sent. The diff only appends: every live
+element has an identity, so a span arriving late never repeats or retracts an element. After a
+session has completed once, only ``session_complete`` is sent for it.
+"""
+
+from __future__ import annotations
+
+import asyncio
+import contextlib
+import dataclasses
+import logging
+import os
+import threading
+import time
+from collections import OrderedDict
+from collections.abc import Iterable, Sequence
+from dataclasses import dataclass, field
+from typing import Any
+
+from ..api.models import (
+ SessionInfo,
+ WSSessionCompleteEvent,
+ WSSessionRemovedEvent,
+ WSSessionStartedEvent,
+)
+from ..genai.extract import conversation_from_turns, extract_turns
+from ..genai.grouping import SESSION_NAME
+from ..genai.messages import has_text, text_of, user_turn_messages
+from ..genai.model import Conversation, ToolCall, Turn
+from ..genai.routing import GenAIRoutingPolicy
+from ..otel.decode import DecodeResult
+from ..otel.encode import encode_traces
+from ..otel.model import LogRecord, Span, SpanRef, Trace, attr_float, attr_int, build_traces
+from ..otel.store import IngestResult, Limits, LiveSession, TelemetryStore, TraceSnapshot
+
+logger = logging.getLogger(__name__)
+
+YIELD_INTERVAL_SECONDS = 0.01
+SSE_QUEUE_SIZE = 1_000
+MAX_EMITTED_KEYS = 10_000
+DEBOUNCE_MIN_SECONDS = 0.25
+DEBOUNCE_MAX_SECONDS = 5.0
+DEBOUNCE_MAX_WAIT_SECONDS = 1.0
+EXPIRE_INTERVAL_SECONDS = 10.0
+MAX_TICK_SECONDS = 1.0
+# A recompute can produce thousands of elements at once; handing the loop back between batches
+# lets SSE writers drain, so the queue bound drops only clients that are really behind.
+BROADCAST_BATCH = 100
+
+
+MAX_BYTES_ENV = "AGENTEVALS_LIVE_MAX_BYTES"
+
+
+def _max_bytes_from_env() -> int | None:
+ """The live store memory budget in bytes, from ``AGENTEVALS_LIVE_MAX_BYTES``."""
+ raw = os.environ.get(MAX_BYTES_ENV, "").strip()
+ if not raw:
+ return None
+ if not raw.isdigit() or int(raw) <= 0:
+ raise ValueError(f"{MAX_BYTES_ENV} must be a positive number of bytes (got: {raw!r})")
+ return int(raw)
+
+
+def _resource_groups(items: Iterable[Any]) -> list[list[Any]]:
+ """Split decoded spans or logs into routing units: one trace under one resource, in arrival order."""
+ groups: dict[tuple[int, str | None], list[Any]] = {}
+ for item in items:
+ groups.setdefault((id(item.resource), item.trace_id), []).append(item)
+ return list(groups.values())
+
+
+def _span_stub(span: Span) -> dict[str, Any]:
+ return {"traceId": span.trace_id, "spanId": span.span_id, "parentSpanId": span.parent_span_id, "name": span.name}
+
+
+def model_info(turn: Turn, spans: dict[tuple[str, str], Span]) -> dict[str, Any]:
+ """Per turn model metadata; usage counts each logical call once."""
+ info: dict[str, Any] = {}
+ calls = turn.llm_calls
+ usage = turn.usage
+ leaf = spans.get((calls[0].ref.trace_id, calls[0].ref.span_id)) if calls else None
+ for key, value in (
+ ("models", sorted({c.request_model for c in calls if c.request_model})),
+ ("inputTokens", usage.input_tokens),
+ ("outputTokens", usage.output_tokens),
+ ("provider", next((c.provider for c in calls if c.provider), None)),
+ ("responseModels", sorted({c.response_model for c in calls if c.response_model})),
+ ("finishReasons", sorted({r for c in calls for r in c.finish_reasons})),
+ ("cacheCreationTokens", usage.cache_write_input_tokens),
+ ("cacheReadTokens", usage.cache_read_input_tokens),
+ ("temperature", attr_float(leaf.attributes, "gen_ai.request.temperature") if leaf else None),
+ ("maxTokens", attr_int(leaf.attributes, "gen_ai.request.max_tokens") if leaf else None),
+ ("errorTypes", sorted({c.error_type for c in calls if c.error_type})),
+ ):
+ if value:
+ info[key] = value
+ return info
+
+
+def invocation_dict(turn: Turn, spans: dict[tuple[str, str], Span]) -> dict[str, Any]:
+ """A turn as the ``session_complete`` invocation the live UI renders."""
+ return {
+ "invocationId": turn.ref.span_id,
+ "traceId": turn.ref.trace_id,
+ "userText": text_of(turn.user_input) or "",
+ "agentText": text_of(turn.final_output) or "",
+ "toolCalls": [{"name": t.name, "args": t.arguments or {}, "id": t.call_id} for t in turn.tool_calls],
+ "toolResponses": [
+ {"name": t.name, "response": t.result, "id": t.call_id} for t in turn.tool_calls if t.result is not None
+ ],
+ "modelInfo": model_info(turn, spans),
+ "externalEvaluations": [
+ {
+ "name": e.name,
+ "scoreValue": e.score_value,
+ "scoreLabel": e.score_label,
+ "explanation": e.explanation,
+ "spanId": e.ref.span_id,
+ "sourceService": e.source_service,
+ }
+ for e in turn.external_evaluations
+ ],
+ }
+
+
+@dataclass(slots=True)
+class LiveState:
+ """What one session already sent over SSE."""
+
+ keys: set = field(default_factory=set)
+ input_tokens: int = 0
+ output_tokens: int = 0
+
+ def seen(self, key: Any) -> bool:
+ return key in self.keys
+
+ def mark(self, *keys: Any) -> bool:
+ """Record keys; False when the cap is reached (the element is then left to ``session_complete``)."""
+ if len(self.keys) + len(keys) > MAX_EMITTED_KEYS:
+ return False
+ self.keys.update(keys)
+ return True
+
+
+def _ref_key(kind: str, ref: SpanRef | None) -> tuple | None:
+ return (kind, ref.trace_id, ref.span_id) if ref else None
+
+
+def _tool_idents(tool: ToolCall) -> list[str]:
+ """Every identity a tool call has had so far: its call id, then each of its spans.
+
+ The layers of one call (framework tool span, MCP client, MCP server) can arrive in separate
+ exports, so the call's outermost span, and with it ``ref``, changes as they come in.
+ """
+ idents = [tool.call_id] if tool.call_id else []
+ idents += [r.span_id for r in (tool.ref, *tool.inner_refs) if r is not None]
+ return idents or [f"{tool.name}@{tool.start_ns}"]
+
+
+def _first_sighting(state: LiveState, keys: list) -> bool:
+ """True the first time any of ``keys`` is seen. Later sightings record the keys they add, so
+ an element that gains an identity is still recognized under it."""
+ if any(state.seen(k) for k in keys):
+ state.mark(*(k for k in keys if not state.seen(k)))
+ return False
+ return state.mark(*keys)
+
+
+def live_events(session_id: str, conversation: Conversation, state: LiveState, incomplete: set[str]) -> list[dict]:
+ """Elements of ``conversation`` not sent yet, as the SSE events the live UI consumes."""
+ events: list[dict] = []
+ last_invocation = None
+ for turn in conversation.turns:
+ invocation = turn.ref.trace_id if turn.ref.trace_id in incomplete else turn.ref.span_id
+ last_invocation = invocation
+ base = {"sessionId": session_id, "invocationId": invocation}
+
+ text = text_of(turn.user_input)
+ if text:
+ source = next((c for c in turn.llm_calls if user_turn_messages(c.input_messages)), None)
+ keys = [("user-text", turn.ref.trace_id, text), _ref_key("user", turn.ref)]
+ if source is not None:
+ keys += [_ref_key("user", source.ref), _ref_key("user", source.wrapper_ref)]
+ keys = [k for k in keys if k]
+ if not any(state.seen(k) for k in keys) and state.mark(*keys):
+ events.append({"type": "user_input", **base, "text": text, "timestamp": turn.start_ns / 1e9})
+
+ spoke = False
+ for call in turn.llm_calls:
+ if call.delegated or not has_text(call.output_messages):
+ continue
+ spoke = True
+ keys = [k for k in (_ref_key("agent", call.ref), _ref_key("agent", call.wrapper_ref)) if k]
+ if any(state.seen(k) for k in keys) or not state.mark(*keys):
+ continue
+ events.append(
+ {
+ "type": "agent_response",
+ **base,
+ "text": text_of(call.output_messages) or "",
+ "timestamp": call.end_ns / 1e9,
+ }
+ )
+ final = text_of(turn.final_output)
+ if not spoke and final:
+ key = _ref_key("agent-final", turn.ref)
+ if not state.seen(key) and state.mark(key):
+ events.append({"type": "agent_response", **base, "text": final, "timestamp": turn.end_ns / 1e9})
+
+ for tool in turn.tool_calls:
+ idents = _tool_idents(tool)
+ ident = idents[0]
+ if _first_sighting(state, [("tool", i) for i in idents]):
+ events.append(
+ {
+ "type": "tool_call",
+ **base,
+ "toolCall": {"id": ident, "name": tool.name, "args": tool.arguments or {}},
+ "timestamp": (tool.start_ns or turn.start_ns) / 1e9,
+ }
+ )
+ if tool.result is not None and _first_sighting(state, [("result", i) for i in idents]):
+ events.append(
+ {
+ "type": "tool_result",
+ **base,
+ "toolCallId": tool.call_id or ident,
+ "toolName": tool.name,
+ "response": tool.result,
+ "isError": tool.is_error,
+ "timestamp": (tool.start_ns or turn.end_ns) / 1e9,
+ }
+ )
+
+ total_in = sum(t.usage.input_tokens for t in conversation.turns)
+ total_out = sum(t.usage.output_tokens for t in conversation.turns)
+ if total_in != state.input_tokens or total_out != state.output_tokens:
+ model = next(
+ (c.response_model or c.request_model for t in reversed(conversation.turns) for c in reversed(t.llm_calls)),
+ None,
+ )
+ events.append(
+ {
+ "type": "token_update",
+ "sessionId": session_id,
+ "invocationId": last_invocation,
+ "inputTokens": total_in - state.input_tokens,
+ "outputTokens": total_out - state.output_tokens,
+ "model": model,
+ }
+ )
+ state.input_tokens, state.output_tokens = total_in, total_out
+ return events
+
+
+class SseClient:
+ def __init__(self) -> None:
+ self.queue: asyncio.Queue = asyncio.Queue(maxsize=SSE_QUEUE_SIZE)
+ self.dropped = False
+
+
+@dataclass(slots=True)
+class _Pending:
+ first: float
+ last: float
+ complete: bool = False
+
+
+class LiveManager:
+ """Live ingestion, sessions and UI updates on top of :class:`TelemetryStore`."""
+
+ def __init__(
+ self,
+ limits: Limits | None = None,
+ *,
+ completion_grace_seconds: float | None = None,
+ idle_timeout_seconds: float | None = None,
+ rerun_window_seconds: float | None = None,
+ emitter_instance_id: str | None = None,
+ ):
+ overrides = {
+ name: value
+ for name, value in (
+ ("completion_grace_seconds", completion_grace_seconds),
+ ("idle_timeout_seconds", idle_timeout_seconds),
+ ("rerun_window_seconds", rerun_window_seconds),
+ )
+ if value is not None
+ }
+ if limits is None and "max_bytes" not in overrides:
+ budget = _max_bytes_from_env()
+ if budget is not None:
+ overrides["max_bytes"] = budget
+ limits = dataclasses.replace(limits or Limits(), **overrides)
+ self.store = TelemetryStore(GenAIRoutingPolicy(emitter_instance_id), limits)
+ self.clients: list[SseClient] = []
+ self._states: dict[str, LiveState] = {}
+ self._pending: dict[str, _Pending] = {}
+ self._running: dict[str, asyncio.Task] = {}
+ self._durations: dict[str, float] = {}
+ self._memo: OrderedDict[str, tuple[int, Trace | None, list[Turn]]] = OrderedDict()
+ self._memo_lock = threading.Lock()
+ self._wake: asyncio.Event | None = None
+ self._ticker: asyncio.Task | None = None
+ self._last_expire = 0.0
+
+ # ------------------------------------------------------------ lifecycle
+
+ @property
+ def sessions(self) -> dict[str, LiveSession]:
+ return self.store.sessions
+
+ def start(self) -> None:
+ if self._ticker is None:
+ self._wake = asyncio.Event()
+ self._ticker = asyncio.create_task(self._run())
+
+ async def shutdown(self) -> None:
+ for client in list(self.clients):
+ self._close(client)
+ tasks = [t for t in (self._ticker, *self._running.values()) if t is not None]
+ self._ticker = None
+ for task in tasks:
+ task.cancel()
+ if tasks:
+ await asyncio.gather(*tasks, return_exceptions=True)
+ self._running.clear()
+
+ def _poke(self) -> None:
+ if self._wake is not None:
+ self._wake.set()
+
+ # ------------------------------------------------------------ SSE
+
+ def register_sse_client(self) -> SseClient:
+ client = SseClient()
+ self.clients.append(client)
+ return client
+
+ def unregister_sse_client(self, client: SseClient) -> None:
+ if client in self.clients:
+ self.clients.remove(client)
+
+ def _close(self, client: SseClient) -> None:
+ self.unregister_sse_client(client)
+ while not client.queue.empty():
+ client.queue.get_nowait()
+ client.queue.put_nowait(None)
+
+ def broadcast(self, event: dict) -> None:
+ """Queue an event for every client. A client whose queue is full is dropped; the UI
+ reconnects and refetches the session list."""
+ for client in list(self.clients):
+ try:
+ client.queue.put_nowait(event)
+ except asyncio.QueueFull:
+ client.dropped = True
+ logger.warning("SSE client fell behind by %d events; disconnecting it", SSE_QUEUE_SIZE)
+ self._close(client)
+
+ # ------------------------------------------------------------ views
+
+ def session_info(self, session: LiveSession, *, with_invocations: bool = False) -> SessionInfo:
+ return SessionInfo(
+ session_id=session.session_id,
+ trace_id=self.store.primary_trace_id(session),
+ eval_set_id=session.eval_set_id,
+ span_count=session.span_count,
+ is_complete=session.is_complete,
+ started_at=session.started_at.isoformat(),
+ metadata=session.metadata,
+ invocations=session.invocations if with_invocations else None,
+ )
+
+ def session_traces(self, session: LiveSession | str) -> list[Trace]:
+ session_id = session if isinstance(session, str) else session.session_id
+ spans: list[Span] = []
+ logs: list[LogRecord] = []
+ for snap in self.store.snapshot(session_id):
+ spans.extend(snap.spans)
+ logs.extend(snap.logs)
+ traces, _ = build_traces(spans, logs)
+ return traces
+
+ def session_document(self, session: LiveSession | str) -> dict:
+ """The session as one OTLP/JSON document, every resource stamped with ``agentevals.session_name``."""
+ session_id = session if isinstance(session, str) else session.session_id
+ document = encode_traces(self.session_traces(session_id))
+ stamp = {"key": SESSION_NAME, "value": {"stringValue": session_id}}
+ for group in (*document.get("resourceSpans", []), *document.get("resourceLogs", [])):
+ attrs = group.setdefault("resource", {}).setdefault("attributes", [])
+ if not any(a.get("key") == SESSION_NAME for a in attrs):
+ attrs.append(stamp)
+ return document
+
+ # ------------------------------------------------------------ ingest
+
+ async def ingest_spans(self, decoded: DecodeResult) -> IngestResult:
+ return await self._ingest(decoded.spans, self.store.ingest_spans)
+
+ async def ingest_logs(self, decoded: DecodeResult) -> IngestResult:
+ return await self._ingest(decoded.logs, self.store.ingest_logs)
+
+ async def _ingest(self, items: Sequence[Any], apply) -> IngestResult:
+ result = IngestResult()
+ last_yield = time.monotonic()
+ for group in _resource_groups(items):
+ if time.monotonic() - last_yield >= YIELD_INTERVAL_SECONDS:
+ await asyncio.sleep(0)
+ last_yield = time.monotonic()
+ result.extend(apply(group))
+ self._drain()
+ self._poke()
+ return result
+
+ def load_session(self, session_id: str, spans, logs, *, eval_set_id=None, metadata=None) -> LiveSession | None:
+ session = self.store.load_session(session_id, spans, logs, eval_set_id=eval_set_id, metadata=metadata)
+ self._drain()
+ if session is not None:
+ self._request(session.session_id, complete=True)
+ self._poke()
+ return session
+
+ def _drain(self) -> None:
+ events, self.store.events = self.store.events, []
+ now = time.monotonic()
+ for event in events:
+ kind, session_id = event[0], event[1]
+ if kind == "started":
+ session = self.store.sessions.get(session_id)
+ if session is not None:
+ self._states[session_id] = LiveState()
+ self.broadcast(WSSessionStartedEvent(session=self.session_info(session)).model_dump(by_alias=True))
+ elif kind == "removed":
+ self._forget(session_id)
+ self.broadcast(
+ WSSessionRemovedEvent(session_id=session_id, absorbed_by=event[2]).model_dump(by_alias=True)
+ )
+ elif kind == "spans":
+ stubs = [_span_stub(s) for s in event[2]]
+ self.broadcast({"type": "span_received", "sessionId": session_id, "span": stubs[0], "spans": stubs})
+ elif kind == "dirty":
+ pending = self._pending.get(session_id)
+ if pending is None:
+ self._pending[session_id] = _Pending(first=now, last=now)
+ else:
+ pending.last = now
+ elif kind == "reopened":
+ logger.info("Session %s reopened by new spans", session_id)
+
+ def _forget(self, session_id: str) -> None:
+ self._states.pop(session_id, None)
+ self._pending.pop(session_id, None)
+ self._durations.pop(session_id, None)
+ task = self._running.pop(session_id, None)
+ if task is not None:
+ task.cancel()
+ live = set(self.store.traces)
+ with self._memo_lock:
+ for trace_id in [t for t in self._memo if t not in live]:
+ del self._memo[trace_id]
+
+ def _request(self, session_id: str, *, complete: bool = False) -> None:
+ now = time.monotonic()
+ pending = self._pending.setdefault(session_id, _Pending(first=now, last=now))
+ if complete:
+ pending.complete = True
+
+ # ------------------------------------------------------------ ticker and recompute
+
+ def _due(self, session_id: str, pending: _Pending) -> float:
+ if pending.complete:
+ return pending.first
+ debounce = min(max(4 * self._durations.get(session_id, 0.0), DEBOUNCE_MIN_SECONDS), DEBOUNCE_MAX_SECONDS)
+ return min(pending.last + debounce, pending.first + DEBOUNCE_MAX_WAIT_SECONDS)
+
+ async def _run(self) -> None:
+ assert self._wake is not None
+ while True:
+ try:
+ now = time.monotonic()
+ wake_at = [now + MAX_TICK_SECONDS]
+ deadline = self.store.next_deadline()
+ if deadline is not None:
+ wake_at.append(deadline)
+ wake_at += [self._due(s, p) for s, p in self._pending.items() if s not in self._running]
+ timeout = max(0.0, min(wake_at) - now)
+ with contextlib.suppress(TimeoutError):
+ await asyncio.wait_for(self._wake.wait(), timeout)
+ self._wake.clear()
+ self.tick()
+ except asyncio.CancelledError:
+ raise
+ except Exception:
+ logger.exception("Live session ticker failed; continuing")
+
+ def tick(self) -> None:
+ """Complete what is due and start the recomputes that are due. Called by the ticker."""
+ for session_id in self.store.tick():
+ self._request(session_id, complete=True)
+ now = time.monotonic()
+ if now - self._last_expire >= EXPIRE_INTERVAL_SECONDS:
+ self._last_expire = now
+ self.store.expire()
+ self._drain()
+ for session_id, pending in list(self._pending.items()):
+ if session_id in self._running or self._due(session_id, pending) > now:
+ continue
+ del self._pending[session_id]
+ if session_id not in self.store.sessions:
+ continue
+ task = asyncio.create_task(self._recompute(session_id, pending.complete))
+ self._running[session_id] = task
+
+ async def _recompute(self, session_id: str, completed_now: bool) -> None:
+ try:
+ snapshots = self.store.snapshot(session_id)
+ started = time.monotonic()
+ conversation, spans = await asyncio.to_thread(self._conversation, session_id, snapshots)
+ invocations = await asyncio.to_thread(lambda: [invocation_dict(t, spans) for t in conversation.turns])
+ self._durations[session_id] = time.monotonic() - started
+ session = self.store.sessions.get(session_id)
+ if session is None:
+ return
+ session.invocations = invocations
+ if not session.completed_once:
+ state = self._states.setdefault(session_id, LiveState())
+ incomplete = {s.trace_id for s in snapshots if not s.complete}
+ for n, event in enumerate(live_events(session_id, conversation, state, incomplete), start=1):
+ self.broadcast(event)
+ if n % BROADCAST_BATCH == 0:
+ await asyncio.sleep(0)
+ if session.is_complete and (completed_now or session.completed_once):
+ session.completed_once = True
+ logger.info(
+ "Session complete: %s (%d spans, %d logs, %d turns)",
+ session_id,
+ session.span_count,
+ session.log_count,
+ len(invocations),
+ )
+ self.broadcast(
+ WSSessionCompleteEvent(session_id=session_id, invocations=invocations).model_dump(by_alias=True)
+ )
+ except asyncio.CancelledError:
+ raise
+ except Exception:
+ logger.exception("Failed to recompute session %s", session_id)
+ finally:
+ if self._running.get(session_id) is asyncio.current_task():
+ del self._running[session_id]
+ if session_id in self._pending:
+ self._poke()
+
+ def _conversation(
+ self, session_id: str, snapshots: list[TraceSnapshot]
+ ) -> tuple[Conversation, dict[tuple[str, str], Span]]:
+ traces: list[Trace] = []
+ turns: list[list[Turn]] = []
+ for snap in snapshots:
+ with self._memo_lock:
+ cached = self._memo.get(snap.trace_id)
+ if cached is None or cached[0] != snap.version:
+ built, _ = build_traces(snap.spans, snap.logs)
+ trace = built[0] if built else None
+ cached = (snap.version, trace, extract_turns(trace) if trace else [])
+ with self._memo_lock:
+ self._memo[snap.trace_id] = cached
+ if cached[1] is not None:
+ traces.append(cached[1])
+ turns.append(cached[2])
+ spans = {(s.trace_id, s.span_id): s for t in traces for s in t.spans.values()}
+ return conversation_from_turns(traces, turns, session_id), spans
diff --git a/src/agentevals/streaming/processor.py b/src/agentevals/streaming/processor.py
deleted file mode 100644
index 51160288..00000000
--- a/src/agentevals/streaming/processor.py
+++ /dev/null
@@ -1,288 +0,0 @@
-"""OpenTelemetry SpanProcessor and LogRecordProcessor for streaming to agentevals dev server."""
-
-from __future__ import annotations
-
-import asyncio
-import json
-import logging
-from typing import Any
-
-try:
- import websockets
- from opentelemetry.sdk.trace import ReadableSpan, SpanProcessor
- from opentelemetry.trace import SpanKind
-except ImportError:
- websockets = None
- ReadableSpan = None
- SpanProcessor = None
- SpanKind = None
-
-logger = logging.getLogger(__name__)
-
-
-class AgentEvalsStreamingProcessor:
- """OTel span processor that streams spans to agentevals dev server via WebSocket."""
-
- def __init__(self, ws_url: str, session_id: str, trace_id: str):
- if websockets is None or SpanProcessor is None:
- raise ImportError(
- "websockets and opentelemetry-sdk required for streaming. "
- "Install with: pip install websockets opentelemetry-sdk"
- )
-
- self.ws_url = ws_url
- self.session_id = session_id
- self.trace_id = trace_id
- self.websocket: Any | None = None
- self.loop: asyncio.AbstractEventLoop | None = None
- self._connected = False
- self._span_buffer: list[dict] = []
- self._failed_spans: list[dict] = []
- self._pending_sends: set[asyncio.Task] = set()
-
- async def connect(self, eval_set_id: str | None = None, metadata: dict | None = None):
- try:
- self.websocket = await websockets.connect(self.ws_url)
- self.loop = asyncio.get_running_loop()
-
- await self.websocket.send(
- json.dumps(
- {
- "type": "session_start",
- "session_id": self.session_id,
- "trace_id": self.trace_id,
- "eval_set_id": eval_set_id,
- "metadata": metadata or {},
- }
- )
- )
-
- self._connected = True
- logger.info("Connected to agentevals dev server: %s", self.session_id)
-
- except Exception as exc:
- logger.error("Failed to connect to agentevals server: %s", exc)
- self._connected = False
-
- def on_start(self, span: ReadableSpan, parent_context=None) -> None:
- pass
-
- def on_end(self, span: ReadableSpan) -> None:
- if not self._connected or not self.websocket or not self.loop:
- logger.debug(f"Skipping span {span.name}: not connected")
- return
-
- try:
- otlp_span = self._span_to_otlp(span)
- self._span_buffer.append(otlp_span)
-
- future = asyncio.run_coroutine_threadsafe(self._send_span(otlp_span), self.loop)
- self._pending_sends.add(future)
-
- def handle_send_complete(fut):
- self._pending_sends.discard(fut)
- try:
- fut.result()
- logger.debug(f"Sent span: {span.name}")
- except Exception as exc:
- logger.error(f"Failed to send span {span.name}: {exc}")
- self._failed_spans.append(otlp_span)
-
- future.add_done_callback(handle_send_complete)
-
- except Exception as exc:
- logger.warning("Failed to convert span: %s", exc)
-
- def shutdown(self) -> None:
- pass
-
- async def shutdown_async(self) -> None:
- if self.websocket and self._connected:
- try:
- await self._send_session_end()
- except Exception as exc:
- logger.warning("Failed to shutdown cleanly: %s", exc)
-
- async def _send_span(self, otlp_span: dict) -> None:
- if not self.websocket:
- raise ConnectionError("WebSocket not connected")
-
- message = {
- "type": "span",
- "session_id": self.session_id,
- "span": otlp_span,
- }
- await self.websocket.send(json.dumps(message))
- logger.debug(f"Sent span: {otlp_span.get('name')}")
-
- async def _send_session_end(self) -> None:
- try:
- if not self.websocket:
- return
-
- if self._pending_sends:
- logger.info("Waiting for %d pending span sends to complete...", len(self._pending_sends))
- for future in list(self._pending_sends):
- try:
- await asyncio.wrap_future(future)
- except Exception as exc:
- logger.warning("Pending send failed during shutdown: %s", exc)
- logger.info("All pending sends completed")
-
- if self._failed_spans:
- logger.info("Retrying %d failed spans at shutdown", len(self._failed_spans))
- for otlp_span in self._failed_spans:
- try:
- await self._send_span(otlp_span)
- except Exception as exc:
- logger.error("Failed to send span even at shutdown: %s", exc)
-
- self._failed_spans.clear()
- self._span_buffer.clear()
- self._pending_sends.clear()
-
- await self.websocket.send(json.dumps({"type": "session_end", "session_id": self.session_id}))
-
- await self.websocket.close()
- self._connected = False
- except Exception as exc:
- logger.error("Failed to send session_end: %s", exc)
-
- def force_flush(self, timeout_millis: int = 30000) -> bool:
- return True
-
- def _span_to_otlp(self, span: ReadableSpan) -> dict:
- scope_name = span.instrumentation_scope.name if span.instrumentation_scope else ""
- scope_version = span.instrumentation_scope.version if span.instrumentation_scope else ""
- schema_url = span.instrumentation_scope.schema_url if span.instrumentation_scope else ""
-
- attributes = []
- if scope_name:
- attributes.append({"key": "otel.scope.name", "value": {"stringValue": scope_name}})
- if scope_version:
- attributes.append({"key": "otel.scope.version", "value": {"stringValue": scope_version}})
- if schema_url:
- attributes.append({"key": "otel.schema_url", "value": {"stringValue": schema_url}})
-
- if span.attributes:
- for key, value in span.attributes.items():
- attributes.append(self._to_otlp_attribute(key, value))
-
- self._promote_genai_event_attributes(span, attributes)
-
- parent_span_id = None
- if span.parent and hasattr(span.parent, "span_id"):
- parent_span_id = format(span.parent.span_id, "016x")
-
- return {
- "traceId": format(span.context.trace_id, "032x"),
- "spanId": format(span.context.span_id, "016x"),
- "parentSpanId": parent_span_id,
- "name": span.name,
- "kind": span.kind.value if span.kind else 1,
- "startTimeUnixNano": str(span.start_time),
- "endTimeUnixNano": str(span.end_time),
- "attributes": attributes,
- "status": {"code": span.status.status_code.value} if span.status else {},
- }
-
- def _promote_genai_event_attributes(self, span: ReadableSpan, attributes: list[dict]) -> None:
- """Promote OTel GenAI message attributes from span events to span attributes.
-
- OTel GenAI semantic convention frameworks may store message content
- (gen_ai.input.messages, gen_ai.output.messages) in span events rather
- than span attributes. This promotes those event attributes so downstream
- processors can access them uniformly from span attributes alone.
- """
- if not hasattr(span, "events") or not span.events:
- return
-
- from ..trace_attrs import OTEL_GENAI_INPUT_MESSAGES, OTEL_GENAI_OUTPUT_MESSAGES
-
- _genai_event_keys = {OTEL_GENAI_INPUT_MESSAGES, OTEL_GENAI_OUTPUT_MESSAGES}
- existing_keys = {a["key"] for a in attributes}
-
- for event in span.events:
- if not event.attributes:
- continue
- for key, value in event.attributes.items():
- if key in _genai_event_keys and key not in existing_keys:
- attributes.append(self._to_otlp_attribute(key, value))
- existing_keys.add(key)
-
- def _to_otlp_attribute(self, key: str, value: Any) -> dict:
- if isinstance(value, bool):
- return {"key": key, "value": {"boolValue": value}}
- elif isinstance(value, int):
- return {"key": key, "value": {"intValue": value}}
- elif isinstance(value, float):
- return {"key": key, "value": {"doubleValue": value}}
- else:
- return {"key": key, "value": {"stringValue": str(value)}}
-
-
-class AgentEvalsLogStreamingProcessor:
- """OTel log processor that streams GenAI logs to agentevals dev server via WebSocket.
-
- This processor shares the same WebSocket connection and session as AgentEvalsStreamingProcessor.
- It extracts input/output messages from GenAI semantic convention logs and streams them.
- """
-
- def __init__(self, span_processor: AgentEvalsStreamingProcessor):
- """Initialize with a reference to the span processor for shared connection."""
- self.span_processor = span_processor
-
- def on_emit(self, log_data):
- """Called when a log record is emitted."""
- log_record = log_data.log_record
-
- # Only process GenAI message logs
- if not log_record.event_name or not log_record.event_name.startswith("gen_ai."):
- return
-
- logger.info(f"Log emitted: event={log_record.event_name}")
-
- if not self.span_processor._connected or not self.span_processor.websocket or not self.span_processor.loop:
- return
-
- try:
- log_json = {
- "event_name": log_record.event_name,
- "timestamp": str(log_record.timestamp) if log_record.timestamp else None,
- "body": log_record.body,
- "attributes": {},
- }
-
- if log_record.attributes:
- for key, value in log_record.attributes.items():
- log_json["attributes"][key] = value
-
- future = asyncio.run_coroutine_threadsafe(self._send_log(log_json), self.span_processor.loop)
-
- def handle_send_complete(fut):
- try:
- fut.result()
- except Exception as exc:
- logger.error(f"Failed to send log: {exc}")
-
- future.add_done_callback(handle_send_complete)
-
- except Exception as exc:
- logger.warning("Failed to process log: %s", exc)
-
- async def _send_log(self, log_json: dict) -> None:
- if not self.span_processor.websocket:
- raise ConnectionError("WebSocket not connected")
-
- message = {
- "type": "log",
- "session_id": self.span_processor.session_id,
- "log": log_json,
- }
- await self.span_processor.websocket.send(json.dumps(message))
-
- def shutdown(self):
- pass
-
- def force_flush(self, timeout_millis: int = 30000):
- return True
diff --git a/src/agentevals/streaming/ws_server.py b/src/agentevals/streaming/ws_server.py
deleted file mode 100644
index 741b145a..00000000
--- a/src/agentevals/streaming/ws_server.py
+++ /dev/null
@@ -1,926 +0,0 @@
-"""WebSocket server for streaming OTel spans from agents."""
-
-from __future__ import annotations
-
-import asyncio
-import json
-import logging
-import tempfile
-from datetime import UTC, datetime, timedelta
-from pathlib import Path
-from typing import Any
-
-from fastapi import WebSocket, WebSocketDisconnect
-
-from ..api.models import (
- SessionInfo,
- WSSessionCompleteEvent,
- WSSessionRemovedEvent,
- WSSessionStartedEvent,
- WSSpanReceivedEvent,
-)
-from ..converter import convert_traces
-from ..extraction import (
- extract_extended_model_info_from_attrs,
- extract_token_usage_from_attrs,
- is_llm_span,
- parse_tool_response_content,
-)
-from ..loader.base import Trace
-from ..loader.otlp import OtlpJsonLoader
-from ..trace_attrs import OTEL_GENAI_INPUT_MESSAGES, OTEL_GENAI_REQUEST_MODEL, OTEL_SERVICE_NAME
-from ..utils.log_enrichment import enrich_spans_with_logs
-from .exports import EXPORT_DIR, export_name
-from .incremental_processor import IncrementalInvocationExtractor
-from .session import TraceSession
-
-logger = logging.getLogger(__name__)
-
-
-class StreamingTraceManager:
- """Manages active trace sessions from WebSocket clients.
-
- Args:
- session_ttl_hours: How long to keep completed sessions in memory (default: 2 hours)
- max_sessions: Maximum number of sessions to keep (default: 100)
- completion_grace_seconds: Delay after root span before completing session (default: 3.0)
- idle_timeout_seconds: Complete session after this many seconds of inactivity (default: 30.0)
- reextraction_delay_seconds: Debounce delay for late-log re-extraction (default: 2.0)
- """
-
- def __init__(
- self,
- session_ttl_hours: int = 2,
- max_sessions: int = 100,
- completion_grace_seconds: float = 3.0,
- idle_timeout_seconds: float = 30.0,
- reextraction_delay_seconds: float = 2.0,
- ):
- self.sessions: dict[str, TraceSession] = {}
- self.incremental_extractors: dict[str, IncrementalInvocationExtractor] = {}
- self.sse_queues: list[asyncio.Queue] = []
- self.session_ttl = timedelta(hours=session_ttl_hours)
- self.max_sessions = max_sessions
- self.completion_grace_seconds = completion_grace_seconds
- self.idle_timeout_seconds = idle_timeout_seconds
- self.reextraction_delay_seconds = reextraction_delay_seconds
- self._cleanup_task: asyncio.Task | None = None
- self._completion_timers: dict[str, asyncio.Task] = {}
- self._idle_timers: dict[str, asyncio.Task] = {}
- self._orphan_logs: list[dict] = []
- self._orphan_log_max_age = timedelta(seconds=60)
- self._active_session_for_name: dict[str, str] = {}
-
- def register_sse_client(self) -> asyncio.Queue:
- """Register a new SSE client and return its queue."""
- queue: asyncio.Queue = asyncio.Queue()
- self.sse_queues.append(queue)
- return queue
-
- def unregister_sse_client(self, queue: asyncio.Queue) -> None:
- """Unregister an SSE client."""
- if queue in self.sse_queues:
- self.sse_queues.remove(queue)
-
- def start_cleanup_task(self) -> None:
- """Start the background task for cleaning up old sessions."""
- if self._cleanup_task is None:
- self._cleanup_task = asyncio.create_task(self._cleanup_old_sessions_loop())
- logger.info("Started session cleanup task (TTL: %s, max: %d)", self.session_ttl, self.max_sessions)
-
- async def shutdown(self) -> None:
- """Gracefully shut down: close SSE clients and cancel background tasks."""
- for queue in self.sse_queues:
- queue.put_nowait(None)
- pending = list(self._completion_timers.values()) + list(self._idle_timers.values())
- if self._cleanup_task:
- pending.append(self._cleanup_task)
- self._cleanup_task = None
- for task in pending:
- task.cancel()
- if pending:
- await asyncio.gather(*pending, return_exceptions=True)
- self._completion_timers.clear()
- self._idle_timers.clear()
-
- async def _cleanup_old_sessions_loop(self) -> None:
- """Periodically clean up old sessions to prevent memory leak."""
- while True:
- try:
- await asyncio.sleep(3600)
- removed_count = self._cleanup_old_sessions()
- if removed_count > 0:
- logger.info("Cleaned up %d old sessions", removed_count)
- except asyncio.CancelledError:
- break
- except Exception as exc:
- logger.exception("Error in cleanup task: %s", exc)
-
- def _cleanup_old_sessions(self) -> int:
- """Remove sessions older than TTL or enforce max session limit.
-
- Returns:
- Number of sessions removed
- """
- now = datetime.now(UTC)
- to_remove = []
-
- for session_id, session in self.sessions.items():
- age = now - session.started_at
- if session.is_complete and age > self.session_ttl:
- to_remove.append(session_id)
-
- if len(self.sessions) - len(to_remove) > self.max_sessions:
- sorted_sessions = sorted(
- [(sid, s) for sid, s in self.sessions.items() if s.is_complete and sid not in to_remove],
- key=lambda x: x[1].started_at,
- )
- excess_count = len(self.sessions) - len(to_remove) - self.max_sessions
- for i in range(min(excess_count, len(sorted_sessions))):
- to_remove.append(sorted_sessions[i][0])
-
- for session_id in to_remove:
- del self.sessions[session_id]
- if session_id in self.incremental_extractors:
- del self.incremental_extractors[session_id]
- for key in (session_id, f"_reextract_{session_id}"):
- if key in self._completion_timers:
- self._completion_timers.pop(key).cancel()
- if session_id in self._idle_timers:
- self._idle_timers.pop(session_id).cancel()
- logger.debug("Removed old session: %s", session_id)
-
- cutoff = now - self._orphan_log_max_age
- self._orphan_logs = [e for e in self._orphan_logs if e["buffered_at"] >= cutoff]
-
- return len(to_remove)
-
- async def broadcast_to_ui(self, event: dict) -> None:
- """Broadcast event to all connected SSE clients."""
- for queue in self.sse_queues:
- try:
- await queue.put(event)
- except Exception as exc:
- logger.warning("Failed to broadcast to SSE client: %s", exc)
-
- def buffer_orphan_log(self, trace_id: str, session_name: str | None, log_event: dict) -> None:
- """Buffer a log event that arrived before its session was created.
-
- OTLP BatchLogRecordProcessor and BatchSpanProcessor flush independently.
- Logs may arrive at /v1/logs before the first span arrives at /v1/traces,
- at which point no session exists yet. These orphan logs are buffered and
- replayed when the matching session is created.
- """
- self._orphan_logs.append(
- {
- "trace_id": trace_id,
- "session_name": session_name,
- "log_event": log_event,
- "buffered_at": datetime.now(UTC),
- }
- )
-
- def _replay_orphan_logs(self, session: TraceSession) -> list[dict]:
- """Replay buffered orphan logs that match the given session.
-
- Returns the replayed log events for further processing (e.g., incremental
- extraction, broadcasting).
- """
- cutoff = datetime.now(UTC) - self._orphan_log_max_age
- remaining = []
- replayed = []
-
- for entry in self._orphan_logs:
- if entry["buffered_at"] < cutoff:
- continue
-
- matched = entry["trace_id"] in session.trace_ids or (
- entry["session_name"] and self._active_session_for_name.get(entry["session_name"]) == session.session_id
- )
-
- if matched:
- session.trace_ids.add(entry["trace_id"])
- session.logs.append(entry["log_event"])
- replayed.append(entry["log_event"])
- else:
- remaining.append(entry)
-
- self._orphan_logs = remaining
-
- if replayed:
- logger.info(
- "Replayed %d orphan logs into session %s",
- len(replayed),
- session.session_id,
- )
-
- return replayed
-
- async def get_or_create_otlp_session(self, trace_id: str, metadata: dict) -> TraceSession:
- """Get existing session for trace_id or create a new one (OTLP path).
-
- Groups spans by session_name (from resource attributes) or
- gen_ai.conversation.id (OTel semconv), not by trace_id.
- A single session can contain spans from multiple traces — this is common
- with GenAI semconv instrumentation where each LLM call creates its own
- independent trace, and with multi-turn agent conversations where each
- turn produces a separate trace sharing the same conversation ID.
- """
- conversation_id = metadata.get("conversation_id")
- session_name = metadata.get("session_name") or conversation_id or f"otlp-{trace_id[:12]}"
-
- active_id = self._active_session_for_name.get(session_name)
- if active_id:
- active = self.sessions.get(active_id)
- if active and not active.is_complete:
- active.trace_ids.add(trace_id)
- if conversation_id:
- await self._absorb_orphan_for_trace(trace_id, active)
- return active
- if active and active.is_complete and conversation_id:
- self._reopen_session(active, trace_id, session_name)
- await self._absorb_orphan_for_trace(trace_id, active)
- return active
-
- existing = self.find_session_by_trace_id(trace_id)
- if existing:
- if existing.is_complete:
- self._reopen_session(existing, trace_id, session_name)
- else:
- existing.trace_ids.add(trace_id)
- self._active_session_for_name[session_name] = existing.session_id
- return existing
-
- session_id = session_name
- if session_id in self.sessions:
- counter = 2
- while f"{session_name}-{counter}" in self.sessions:
- counter += 1
- session_id = f"{session_name}-{counter}"
-
- session = TraceSession(
- session_id=session_id,
- trace_id=trace_id,
- eval_set_id=metadata.get("eval_set_id"),
- metadata={k: v for k, v in metadata.get("resource_attrs", {}).items() if not k.startswith("agentevals.")},
- source="otlp",
- trace_ids={trace_id},
- )
-
- self.sessions[session_id] = session
- self._active_session_for_name[session_name] = session_id
- self.incremental_extractors[session_id] = IncrementalInvocationExtractor()
-
- replayed = self._replay_orphan_logs(session)
- extractor = self.incremental_extractors.get(session_id)
- if extractor and replayed:
- for log_event in replayed:
- updates = extractor.process_log(log_event)
- for update in updates:
- update["sessionId"] = session_id
- await self.broadcast_to_ui(update)
-
- await self.broadcast_to_ui(
- WSSessionStartedEvent(
- session=SessionInfo(
- session_id=session_id,
- trace_id=trace_id,
- eval_set_id=metadata.get("eval_set_id"),
- span_count=0,
- is_complete=False,
- started_at=session.started_at.isoformat(),
- metadata=session.metadata,
- ),
- ).model_dump(by_alias=True)
- )
-
- logger.info("Auto-created OTLP session: %s (trace: %s)", session_id, trace_id)
- return session
-
- def schedule_session_completion(self, session_id: str) -> None:
- """Schedule session completion after root span arrival.
-
- Starts a 3-second grace period to allow late-arriving child spans
- from the same OTLP batch to be included before finalizing.
- """
- if session_id in self._completion_timers:
- self._completion_timers[session_id].cancel()
-
- self._completion_timers[session_id] = asyncio.create_task(
- self._delayed_complete(session_id, self.completion_grace_seconds)
- )
-
- def reset_idle_timer(self, session_id: str) -> None:
- """Reset the idle timeout for an OTLP session.
-
- Fallback completion after 30 seconds of no new spans or logs.
- Primary completion uses root span detection (3-second grace period),
- which handles most cases. This idle timeout catches edge cases like
- agent crashes or traces that never emit a root span.
- """
- if session_id in self._idle_timers:
- self._idle_timers[session_id].cancel()
-
- self._idle_timers[session_id] = asyncio.create_task(
- self._delayed_complete(session_id, self.idle_timeout_seconds)
- )
-
- def schedule_log_reextraction(self, session_id: str) -> None:
- """Schedule re-extraction of invocations after late-arriving logs.
-
- Logs from BatchLogRecordProcessor may arrive after span-triggered
- session completion. This debounces re-extraction so multiple log
- batches are coalesced into a single re-extraction pass.
- """
- key = f"_reextract_{session_id}"
- if key in self._completion_timers:
- self._completion_timers[key].cancel()
-
- self._completion_timers[key] = asyncio.create_task(
- self._delayed_reextract(session_id, self.reextraction_delay_seconds)
- )
-
- def _reopen_session(self, session: TraceSession, trace_id: str, session_name: str) -> None:
- """Reopen a completed session when a trace_id already in the session
- receives more spans after completion (split-batch scenario).
-
- The OTLP BatchSpanProcessor may flush one turn's spans across the
- completion boundary: some child spans arrive before the grace period
- fires, and the root span (plus remaining children) arrives after.
- Because the trace_id was already registered in the session, we know
- these late spans belong here rather than to a new agent run.
- """
- session.is_complete = False
- session.completed_at = None
- session.trace_ids.add(trace_id)
- self._active_session_for_name[session_name] = session.session_id
- self.incremental_extractors[session.session_id] = IncrementalInvocationExtractor()
- self.reset_idle_timer(session.session_id)
- logger.info(
- "Reopened session %s for trace %s (%d spans so far)",
- session.session_id,
- trace_id,
- len(session.spans),
- )
-
- async def _absorb_orphan_for_trace(self, trace_id: str, target: TraceSession) -> None:
- """Merge an orphan session into the target when conversation_id is discovered.
-
- When infrastructure spans (no conversation_id) arrive before agent spans,
- they create a separate session keyed by trace_id. Once the conversation_id
- is known and routes to the correct session, the orphan's data is merged
- and the orphan session is removed.
- """
- orphan = None
- orphan_id = None
- for sid, session in self.sessions.items():
- if sid == target.session_id:
- continue
- if trace_id in session.trace_ids:
- orphan = session
- orphan_id = sid
- break
-
- if not orphan:
- return
-
- target.spans.extend(orphan.spans)
- target.logs.extend(orphan.logs)
- target.trace_ids.update(orphan.trace_ids)
- if orphan.has_root_span:
- target.has_root_span = True
-
- del self.sessions[orphan_id]
- for name, mapped_id in list(self._active_session_for_name.items()):
- if mapped_id == orphan_id:
- del self._active_session_for_name[name]
- for timer_map in (self._completion_timers, self._idle_timers):
- if orphan_id in timer_map:
- timer_map.pop(orphan_id).cancel()
- self.incremental_extractors.pop(orphan_id, None)
-
- await self.broadcast_to_ui(
- WSSessionRemovedEvent(
- session_id=orphan_id,
- absorbed_by=target.session_id,
- ).model_dump(by_alias=True)
- )
- logger.info(
- "Absorbed orphan session %s (%d spans) into %s",
- orphan_id,
- len(orphan.spans),
- target.session_id,
- )
-
- async def _delayed_complete(self, session_id: str, delay: float) -> None:
- await asyncio.sleep(delay)
- await self._complete_otlp_session(session_id)
-
- async def _delayed_reextract(self, session_id: str, delay: float) -> None:
- await asyncio.sleep(delay)
- await self._reextract_with_logs(session_id)
-
- def find_session_by_trace_id(self, trace_id: str) -> TraceSession | None:
- """Find a session that contains the given trace_id.
-
- Matches both active and recently-completed sessions so that
- late-arriving logs can still be associated with their session.
- """
- for session in self.sessions.values():
- if trace_id in session.trace_ids:
- return session
- return None
-
- async def _reextract_with_logs(self, session_id: str) -> None:
- """Re-extract invocations after late logs arrive for a completed session."""
- session = self.sessions.get(session_id)
- if not session:
- return
-
- key = f"_reextract_{session_id}"
- if key in self._completion_timers:
- del self._completion_timers[key]
-
- logger.info(
- "Re-extracting invocations with %d late logs for session %s",
- len(session.logs),
- session_id,
- )
-
- invocations_data = await self._extract_invocations(session)
- session.invocations = invocations_data
-
- await self.broadcast_to_ui(
- WSSessionCompleteEvent(
- session_id=session_id,
- invocations=invocations_data,
- ).model_dump(by_alias=True)
- )
-
- async def _complete_otlp_session(self, session_id: str) -> None:
- """Mark an OTLP session as complete and extract invocations.
-
- Equivalent to the WebSocket 'session_end' handler. Idempotent — does
- nothing if the session is already complete or missing.
- """
- session = self.sessions.get(session_id)
- if not session or session.is_complete:
- return
-
- session.is_complete = True
- session.completed_at = datetime.now(UTC)
-
- for name, sid in list(self._active_session_for_name.items()):
- if sid == session_id:
- del self._active_session_for_name[name]
- break
-
- if session_id in self._completion_timers:
- self._completion_timers.pop(session_id).cancel()
- if session_id in self._idle_timers:
- self._idle_timers.pop(session_id).cancel()
-
- logger.info(
- "OTLP session complete: %s (%d spans, %d logs)",
- session_id,
- len(session.spans),
- len(session.logs),
- )
-
- invocations_data = await self._extract_invocations(session)
- session.invocations = invocations_data
-
- await self.broadcast_to_ui(
- WSSessionCompleteEvent(
- session_id=session_id,
- invocations=invocations_data,
- ).model_dump(by_alias=True)
- )
-
- if session_id in self.incremental_extractors:
- del self.incremental_extractors[session_id]
-
- async def handle_connection(self, websocket: WebSocket) -> None:
- """Handle WebSocket connection from an agent.
-
- Manages the lifecycle of a WebSocket connection, receiving span events
- and broadcasting updates to connected UI clients.
-
- Args:
- websocket: The WebSocket connection to handle
- """
- await websocket.accept()
- session_id = None
-
- try:
- async for message in websocket.iter_text():
- event = json.loads(message)
-
- if event["type"] == "session_start":
- session_id = event["session_id"]
- logger.info("Received session_start event: %s", session_id)
-
- session = TraceSession(
- session_id=session_id,
- trace_id=event["trace_id"],
- eval_set_id=event.get("eval_set_id"),
- metadata=event.get("metadata", {}),
- )
- self.sessions[session_id] = session
- self.incremental_extractors[session_id] = IncrementalInvocationExtractor()
-
- broadcast_event = WSSessionStartedEvent(
- session=SessionInfo(
- session_id=session_id,
- trace_id=event["trace_id"],
- eval_set_id=event.get("eval_set_id"),
- span_count=0,
- is_complete=False,
- started_at=session.started_at.isoformat(),
- metadata=event.get("metadata", {}),
- ),
- ).model_dump(by_alias=True)
- logger.info("Broadcasting session_started to %d SSE clients", len(self.sse_queues))
- await self.broadcast_to_ui(broadcast_event)
-
- logger.info("Session started: %s", session_id)
-
- elif event["type"] == "span":
- sid = event["session_id"]
-
- if sid not in self.sessions:
- logger.warning("Span for unknown session: %s", sid)
- continue
-
- session = self.sessions[sid]
-
- if not session.can_accept_span():
- logger.warning(
- "Session %s has reached max span limit (%d), rejecting new span", sid, len(session.spans)
- )
- await websocket.send_json(
- {
- "type": "error",
- "message": f"Session has reached maximum span limit ({len(session.spans)})",
- }
- )
- continue
-
- session.spans.append(event["span"])
-
- extractor = self.incremental_extractors.get(sid)
- if extractor:
- updates = extractor.process_span(event["span"])
- for update in updates:
- update["sessionId"] = sid
- await self.broadcast_to_ui(update)
-
- await self.broadcast_to_ui(
- WSSpanReceivedEvent(
- session_id=sid,
- span=event["span"],
- ).model_dump(by_alias=True)
- )
-
- elif event["type"] == "log":
- sid = event["session_id"]
- log_event = event["log"]
-
- if sid not in self.sessions:
- logger.warning("Log for unknown session: %s", sid)
- continue
-
- session = self.sessions[sid]
-
- if not session.can_accept_log():
- logger.warning(
- "Session %s has reached max log limit (%d), rejecting new log", sid, len(session.logs)
- )
- await websocket.send_json(
- {"type": "error", "message": f"Session has reached maximum log limit ({len(session.logs)})"}
- )
- continue
-
- session.logs.append(log_event)
-
- extractor = self.incremental_extractors.get(sid)
- if extractor:
- updates = extractor.process_log(log_event)
- for update in updates:
- update["sessionId"] = sid
- await self.broadcast_to_ui(update)
- else:
- logger.warning(f"No extractor found for session {sid}")
-
- elif event["type"] == "session_end":
- sid = event["session_id"]
-
- if sid not in self.sessions:
- logger.warning("End for unknown session: %s", sid)
- continue
-
- session = self.sessions[sid]
- session.is_complete = True
-
- logger.info("Session ended: %s (%d spans, %d logs)", sid, len(session.spans), len(session.logs))
-
- invocations_data = await self._extract_invocations(session)
- session.invocations = invocations_data
-
- complete_event = WSSessionCompleteEvent(
- session_id=sid,
- invocations=invocations_data,
- ).model_dump(by_alias=True)
- logger.info("Broadcasting session_complete to %d SSE clients", len(self.sse_queues))
- await self.broadcast_to_ui(complete_event)
-
- if sid in self.incremental_extractors:
- del self.incremental_extractors[sid]
-
- await websocket.send_json({"type": "session_complete", "invocations": invocations_data})
-
- except WebSocketDisconnect:
- if session_id and session_id in self.sessions:
- if not self.sessions[session_id].is_complete:
- logger.warning("Client disconnected without ending session: %s", session_id)
- else:
- logger.info("Client disconnected after session end: %s", session_id)
-
- async def _save_spans_to_temp_file(self, session: TraceSession) -> Path:
- """Save spans to a temporary OTLP JSONL file.
-
- Args:
- session: The trace session containing spans to save
-
- Returns:
- Path to the temporary JSONL file containing the spans
- """
- temp_file = EXPORT_DIR / export_name(session.session_id, prefix="agentevals_", suffix=".jsonl")
-
- enriched_spans = enrich_spans_with_logs(session.spans, session.logs, session.session_id)
-
- # service.name is an OTel resource attribute, so it lives on the session
- # (lifted from resource attrs at ingest) rather than on individual spans.
- # The JSONL trace format has no resource envelope, so re-attach it to each
- # span here; otherwise it's lost on reload and runs can't group by agent.
- service_name = (session.metadata or {}).get(OTEL_SERVICE_NAME)
-
- with open(temp_file, "w", encoding="utf-8") as f: # noqa: ASYNC230
- for span in enriched_spans:
- span_copy = span.copy()
- span_copy["traceId"] = session.trace_id
- if service_name:
- attrs = list(span_copy.get("attributes", []))
- if not any(a.get("key") == OTEL_SERVICE_NAME for a in attrs):
- attrs.append({"key": OTEL_SERVICE_NAME, "value": {"stringValue": service_name}})
- span_copy["attributes"] = attrs
- f.write(json.dumps(span_copy) + "\n")
-
- return temp_file
-
- async def _extract_invocations(self, session: TraceSession) -> list[dict]:
- """Extract invocations from session spans for UI display.
-
- Converts raw OTLP spans into structured invocation data with user/agent messages,
- tool calls, and model information for display in the UI.
-
- Args:
- session: The trace session containing spans to extract invocations from
-
- Returns:
- List of invocation dictionaries with the following structure:
- - invocationId: Unique identifier for the invocation
- - userText: User's input text
- - agentText: Agent's response text
- - toolCalls: List of tool calls with name and args
- - modelInfo: Model metadata (model name, tokens, etc.)
- """
- try:
- temp_file = tempfile.NamedTemporaryFile(mode="w", suffix=".jsonl", delete=False, encoding="utf-8")
-
- has_genai_spans = any(
- span.get("attributes", [])
- and any(
- attr.get("key") in (OTEL_GENAI_REQUEST_MODEL, OTEL_GENAI_INPUT_MESSAGES)
- for attr in span.get("attributes", [])
- )
- for span in session.spans
- )
-
- if has_genai_spans and not session.logs:
- logger.warning(
- "Session %s has GenAI spans but no logs. "
- "Message content will be missing unless spans already enriched.",
- session.session_id,
- )
-
- enriched_spans = enrich_spans_with_logs(session.spans, session.logs, session.session_id)
-
- for span in enriched_spans:
- span_copy = span.copy()
- span_copy["traceId"] = session.trace_id
- temp_file.write(json.dumps(span_copy) + "\n")
- temp_file.close()
-
- logger.debug("Saved %d enriched spans to %s", len(enriched_spans), temp_file.name)
-
- loader = OtlpJsonLoader()
- traces = loader.load(temp_file.name)
-
- if not traces:
- logger.warning("No traces loaded from session %s", session.session_id)
- return []
-
- logger.debug("Loaded %d traces", len(traces))
-
- conversion_results = convert_traces(traces)
-
- if not conversion_results:
- logger.warning("No conversion results")
- return []
-
- invocations_data = []
-
- for trace_idx, conv_result in enumerate(conversion_results):
- if conv_result.warnings:
- logger.warning("Conversion warnings: %s", conv_result.warnings)
-
- trace = traces[trace_idx] if trace_idx < len(traces) else None
-
- for inv_idx, inv in enumerate(conv_result.invocations):
- user_text = ""
- if inv.user_content and inv.user_content.parts:
- user_text = " ".join(p.text for p in inv.user_content.parts if p.text)
-
- agent_text = ""
- if inv.final_response and inv.final_response.parts:
- for part in inv.final_response.parts:
- if part.text:
- agent_text += part.text
-
- tool_calls = []
- if inv.intermediate_data and inv.intermediate_data.tool_uses:
- for tool_use in inv.intermediate_data.tool_uses:
- tool_calls.append(
- {
- "name": tool_use.name,
- "args": tool_use.args if hasattr(tool_use, "args") else {},
- "id": getattr(tool_use, "id", None),
- }
- )
-
- tool_responses = []
- if inv.intermediate_data and inv.intermediate_data.tool_responses:
- for tr in inv.intermediate_data.tool_responses:
- tool_responses.append(
- {
- "name": tr.name,
- "response": tr.response if hasattr(tr, "response") else {},
- "id": getattr(tr, "id", None),
- }
- )
-
- model_info = {}
- if trace:
- model_info = self._extract_model_info_from_trace(trace, inv_idx)
-
- invocations_data.append(
- {
- "invocationId": inv.invocation_id,
- "userText": user_text,
- "agentText": agent_text,
- "toolCalls": tool_calls,
- "toolResponses": tool_responses,
- "modelInfo": model_info,
- }
- )
-
- logger.debug("Extracted %d invocations from %d traces", len(invocations_data), len(conversion_results))
-
- self._augment_tool_responses_from_logs(invocations_data, session)
-
- return invocations_data
-
- except Exception:
- logger.exception("Failed to extract invocations")
- return []
-
- def _extract_model_info_from_trace(self, trace: Trace, invocation_idx: int) -> dict:
- """Extract model information from LLM spans in the trace."""
- model_info: dict[str, Any] = {}
- models_used: set[str] = set()
- total_input_tokens = 0
- total_output_tokens = 0
- total_cache_creation_tokens = 0
- total_cache_read_tokens = 0
- first_provider: str | None = None
- response_models: set[str] = set()
- finish_reasons: set[str] = set()
- error_types: set[str] = set()
- first_temperature: float | None = None
- first_max_tokens: int | None = None
-
- llm_spans = [s for s in trace.all_spans if is_llm_span(s) or "call_llm" in s.operation_name]
- llm_spans.sort(key=lambda s: s.start_time)
-
- for span in llm_spans:
- in_toks, out_toks, model = extract_token_usage_from_attrs(span.tags)
- if model and model != "unknown":
- models_used.add(model)
- else:
- genai_model = span.get_tag(OTEL_GENAI_REQUEST_MODEL)
- if genai_model:
- models_used.add(genai_model)
- total_input_tokens += in_toks
- total_output_tokens += out_toks
-
- ext = extract_extended_model_info_from_attrs(span.tags)
- if first_provider is None and ext["provider"]:
- first_provider = ext["provider"]
- if ext["response_model"]:
- response_models.add(ext["response_model"])
- finish_reasons.update(ext["finish_reasons"])
- total_cache_creation_tokens += ext["cache_creation_tokens"]
- total_cache_read_tokens += ext["cache_read_tokens"]
- if ext["error_type"]:
- error_types.add(ext["error_type"])
- if first_temperature is None and ext["temperature"] is not None:
- first_temperature = ext["temperature"]
- if first_max_tokens is None and ext["max_tokens"] is not None:
- first_max_tokens = ext["max_tokens"]
-
- if models_used:
- model_info["models"] = sorted(models_used)
- if total_input_tokens > 0:
- model_info["inputTokens"] = total_input_tokens
- if total_output_tokens > 0:
- model_info["outputTokens"] = total_output_tokens
- if first_provider:
- model_info["provider"] = first_provider
- if response_models:
- model_info["responseModels"] = sorted(response_models)
- if finish_reasons:
- model_info["finishReasons"] = sorted(finish_reasons)
- if total_cache_creation_tokens > 0:
- model_info["cacheCreationTokens"] = total_cache_creation_tokens
- if total_cache_read_tokens > 0:
- model_info["cacheReadTokens"] = total_cache_read_tokens
- if first_temperature is not None:
- model_info["temperature"] = first_temperature
- if first_max_tokens is not None:
- model_info["maxTokens"] = first_max_tokens
- if error_types:
- model_info["errorTypes"] = sorted(error_types)
-
- return model_info
-
- @staticmethod
- def _augment_tool_responses_from_logs(invocations_data: list[dict], session: TraceSession) -> None:
- """Fill in missing tool responses from session logs (e.g. LangChain gen_ai.tool.message)."""
- if not session.logs:
- return
-
- needs_responses = any(inv.get("toolCalls") and not inv.get("toolResponses") for inv in invocations_data)
- if not needs_responses:
- return
-
- tool_names: dict[str, str] = {}
- for inv in invocations_data:
- for tc in inv.get("toolCalls", []):
- tc_id = tc.get("id")
- if tc_id:
- tool_names[tc_id] = tc["name"]
-
- tool_results_by_span: dict[str, list[dict]] = {}
- for log_event in session.logs:
- if log_event.get("event_name") != "gen_ai.tool.message":
- continue
- body = log_event.get("body", {})
- if not isinstance(body, dict):
- continue
- span_id = log_event.get("span_id", "")
- tool_id = body.get("id", "")
- content = body.get("content")
- if content is None:
- continue
-
- response = parse_tool_response_content(content)
- tool_results_by_span.setdefault(span_id, []).append(
- {
- "name": body.get("name") or tool_names.get(tool_id, "unknown"),
- "response": response,
- "id": tool_id,
- }
- )
-
- if not tool_results_by_span:
- return
-
- for inv in invocations_data:
- if inv.get("toolResponses"):
- continue
- inv_id = inv.get("invocationId", "")
- bare_span_id = inv_id.removeprefix("genai-")
- responses = tool_results_by_span.get(bare_span_id, [])
- if responses:
- inv["toolResponses"] = responses
diff --git a/src/agentevals/trace_attrs.py b/src/agentevals/trace_attrs.py
deleted file mode 100644
index bb430e8f..00000000
--- a/src/agentevals/trace_attrs.py
+++ /dev/null
@@ -1,116 +0,0 @@
-"""Centralized OTel span attribute key constants.
-
-Single source of truth for all attribute names used across the converter,
-extraction, streaming, and runner modules.
-
-Covers OTel GenAI semantic conventions up to v1.40.0.
-"""
-
-from typing import Optional
-
-# OTel resource
-OTEL_SERVICE_NAME = "service.name"
-
-# OTel scope
-OTEL_SCOPE = "otel.scope.name"
-OTEL_SCOPE_VERSION = "otel.scope.version"
-OTEL_SCHEMA_URL = "otel.schema_url"
-
-# Google ADK scope value
-ADK_SCOPE_VALUE = "gcp.vertex.agent"
-
-# Standard OTel GenAI semantic conventions (gen_ai.*)
-OTEL_GENAI_OP = "gen_ai.operation.name"
-OTEL_GENAI_AGENT_NAME = "gen_ai.agent.name"
-OTEL_GENAI_REQUEST_MODEL = "gen_ai.request.model"
-OTEL_GENAI_INPUT_MESSAGES = "gen_ai.input.messages"
-OTEL_GENAI_OUTPUT_MESSAGES = "gen_ai.output.messages"
-OTEL_GENAI_USAGE_INPUT_TOKENS = "gen_ai.usage.input_tokens"
-OTEL_GENAI_USAGE_OUTPUT_TOKENS = "gen_ai.usage.output_tokens"
-OTEL_GENAI_TOOL_NAME = "gen_ai.tool.name"
-OTEL_GENAI_TOOL_CALL_ID = "gen_ai.tool.call.id"
-OTEL_GENAI_TOOL_CALL_ARGUMENTS = "gen_ai.tool.call.arguments"
-OTEL_GENAI_TOOL_CALL_RESULT = "gen_ai.tool.call.result"
-OTEL_GENAI_CONVERSATION_ID = "gen_ai.conversation.id"
-
-# Provider and response metadata (v1.37.0+)
-OTEL_GENAI_PROVIDER_NAME = "gen_ai.provider.name"
-OTEL_GENAI_RESPONSE_MODEL = "gen_ai.response.model"
-OTEL_GENAI_RESPONSE_ID = "gen_ai.response.id"
-OTEL_GENAI_RESPONSE_FINISH_REASONS = "gen_ai.response.finish_reasons"
-
-# Deprecated provider attribute (pre-v1.37.0, renamed to gen_ai.provider.name)
-OTEL_GENAI_SYSTEM = "gen_ai.system"
-
-# Agent identity (v1.31.0+)
-OTEL_GENAI_AGENT_ID = "gen_ai.agent.id"
-OTEL_GENAI_AGENT_DESCRIPTION = "gen_ai.agent.description"
-
-# Tool metadata (v1.31.0+)
-OTEL_GENAI_TOOL_DESCRIPTION = "gen_ai.tool.description"
-OTEL_GENAI_TOOL_TYPE = "gen_ai.tool.type"
-
-# Error classification
-OTEL_ERROR_TYPE = "error.type"
-
-# Request parameters
-OTEL_GENAI_REQUEST_TEMPERATURE = "gen_ai.request.temperature"
-OTEL_GENAI_REQUEST_MAX_TOKENS = "gen_ai.request.max_tokens"
-OTEL_GENAI_REQUEST_TOP_P = "gen_ai.request.top_p"
-OTEL_GENAI_REQUEST_TOP_K = "gen_ai.request.top_k"
-
-# Cache token usage (Anthropic/OpenAI prompt caching)
-OTEL_GENAI_USAGE_CACHE_CREATION_TOKENS = "gen_ai.usage.cache_creation.input_tokens"
-OTEL_GENAI_USAGE_CACHE_READ_TOKENS = "gen_ai.usage.cache_read.input_tokens"
-
-# System/tool definitions (opt-in, v1.37.0+)
-OTEL_GENAI_SYSTEM_INSTRUCTIONS = "gen_ai.system_instructions"
-OTEL_GENAI_TOOL_DEFINITIONS = "gen_ai.tool.definitions"
-
-# Output type
-OTEL_GENAI_OUTPUT_TYPE = "gen_ai.output.type"
-
-# ADK-specific custom attributes (gcp.vertex.agent.*)
-ADK_LLM_REQUEST = "gcp.vertex.agent.llm_request"
-ADK_LLM_RESPONSE = "gcp.vertex.agent.llm_response"
-ADK_TOOL_CALL_ARGS = "gcp.vertex.agent.tool_call_args"
-ADK_TOOL_RESPONSE = "gcp.vertex.agent.tool_response"
-ADK_INVOCATION_ID = "gcp.vertex.agent.invocation_id"
-
-# GenAI attribute alias table
-GENAI_ATTRIBUTE_ALIASES: dict[str, list[str]] = {
- OTEL_GENAI_PROVIDER_NAME: [OTEL_GENAI_SYSTEM],
-}
-
-# agentevals custom attributes (repository-specific, outside OTel semconv)
-AGENTEVALS_SESSION_ID = "agentevals.session_id"
-AGENTEVALS_EVAL_SET_ID = "agentevals.eval_set_id"
-AGENTEVALS_SESSION_NAME = "agentevals.session_name"
-
-# Attributes the GenAI semconv types as arrays or structured values. These are
-# the only keys the shared AnyValue decoder returns as a native list or dict;
-# every other key is decoded to a scalar or dropped, which is what
-# ``extraction.py`` did before the decoder was shared.
-#
-# The set is an allowlist on purpose. A missing entry drops one value, matching
-# the pre-existing extraction behaviour; a denylist would instead let an
-# unhashable value reach a dict key or set member on an unauthenticated
-# receiver port, which crashes ingestion. See the discussion on #187.
-#
-# Hand-maintained: opentelemetry-semantic-conventions exposes constants and
-# prose docstrings only, so attribute value types are not machine-readable and
-# this set cannot be derived from the package.
-#
-# What should happen to container values on keys outside this set is not
-# settled; today they are dropped. Tracked in #208.
-SPEC_CONTAINER_ATTRS: frozenset[str] = frozenset(
- {
- OTEL_GENAI_RESPONSE_FINISH_REASONS,
- OTEL_GENAI_INPUT_MESSAGES,
- OTEL_GENAI_OUTPUT_MESSAGES,
- OTEL_GENAI_TOOL_DEFINITIONS,
- OTEL_GENAI_SYSTEM_INSTRUCTIONS,
- OTEL_GENAI_TOOL_CALL_ARGUMENTS,
- OTEL_GENAI_TOOL_CALL_RESULT,
- }
-)
diff --git a/src/agentevals/trace_metrics.py b/src/agentevals/trace_metrics.py
index a8df5109..634dd658 100644
--- a/src/agentevals/trace_metrics.py
+++ b/src/agentevals/trace_metrics.py
@@ -1,67 +1,25 @@
-"""Extract performance and metadata from trace spans."""
+"""Performance metrics and metadata derived from extracted conversations.
+
+Counts and token totals come from logical LLM calls, so a wrapper span over a provider span
+is counted once. Latencies come from the spans each turn, call and tool call refer to.
+"""
from __future__ import annotations
+import re
+import statistics
+from collections.abc import Sequence
from typing import Any
-from .extraction import (
- extract_agent_response_from_attrs,
- extract_extended_model_info_from_attrs,
- extract_token_usage_from_attrs,
- extract_user_text_from_attrs,
- get_extractor,
-)
-from .trace_attrs import (
- OTEL_GENAI_AGENT_ID,
- OTEL_GENAI_AGENT_NAME,
- OTEL_GENAI_REQUEST_MODEL,
- OTEL_GENAI_TOOL_NAME,
- OTEL_SERVICE_NAME,
-)
-
-
-def _first_service_name(trace) -> str | None:
- """The OTel ``service.name`` resource attribute, merged onto every span at
- ingest. Cross-framework, so it's the stable identifier for grouping runs by
- agent regardless of instrumentation."""
- for span in trace.all_spans:
- value = span.get_tag(OTEL_SERVICE_NAME)
- if value:
- return value
- return None
-
-
-def extract_agent_identity(trace, extractor=None) -> dict[str, str | None]:
- """Best-effort agent identity for grouping runs. Prefers ``service.name``;
- falls back only to a real ``gen_ai.agent.name``.
-
- Deliberately does NOT fall back to the root span's operation name: for
- OTel GenAI traces that's the LLM call name (e.g. "chat gpt-4o-mini"), which
- is a model, not an agent, and would mislabel agent groups in the dashboard.
- """
- agent_name = None
- try:
- if extractor is None:
- extractor = get_extractor(trace)
- invocation_spans = extractor.find_invocation_spans(trace)
- if invocation_spans:
- agent_name = invocation_spans[0].get_tag(OTEL_GENAI_AGENT_NAME)
- except Exception:
- agent_name = None
- return {"service_name": _first_service_name(trace), "agent_name": agent_name}
-
-
-def _truncate(text: str, max_length: int = 200) -> str:
- if len(text) <= max_length:
- return text
- return text[:max_length] + "..."
+from .genai import semconv as sc
+from .genai.messages import text_of
+from .genai.model import Conversation
+from .otel.model import Span, Trace, attr_str
def _calc_percentiles(values: list[float]) -> dict[str, float]:
if not values:
return {"p50": 0.0, "p95": 0.0, "p99": 0.0}
- import statistics
-
sorted_values = sorted(values)
n = len(sorted_values)
return {
@@ -72,11 +30,9 @@ def _calc_percentiles(values: list[float]) -> dict[str, float]:
def _calc_summary_stats(values: list[float]) -> dict[str, float | int]:
- """Return min/median/max/count plus legacy p50/p95/p99 keys."""
+ """min/median/max/count plus the p50/p95/p99 keys earlier clients read."""
if not values:
return {"min": 0.0, "median": 0.0, "max": 0.0, "count": 0, "p50": 0.0, "p95": 0.0, "p99": 0.0}
- import statistics
-
sorted_values = sorted(values)
n = len(sorted_values)
med = statistics.median(sorted_values)
@@ -91,97 +47,92 @@ def _calc_summary_stats(values: list[float]) -> dict[str, float | int]:
}
-def extract_performance_metrics(trace, extractor=None) -> dict[str, Any]:
- """Extract latency and token usage metrics from trace spans."""
- agent_latencies: list[float] = []
- llm_latencies: list[float] = []
- tool_latencies: list[float] = []
- prompt_tokens: list[int] = []
- output_tokens: list[int] = []
- total_tokens: list[int] = []
- cache_creation_tokens_total = 0
- cache_read_tokens_total = 0
- models: set[str] = set()
- tool_names: list[str] = []
-
- if extractor is None:
- extractor = get_extractor(trace)
- invocation_spans = extractor.find_invocation_spans(trace)
-
- if not invocation_spans and trace.root_spans:
- for root_span in trace.root_spans:
- agent_latencies.append(root_span.duration / 1000.0)
-
- for inv_span in invocation_spans:
- agent_latencies.append(inv_span.duration / 1000.0)
-
- for span in trace.all_spans:
- duration_ms = span.duration / 1000.0
- role = extractor.classify_span(span)
-
- if role == "llm":
- llm_latencies.append(duration_ms)
- in_toks, out_toks, _ = extract_token_usage_from_attrs(span.tags)
- if in_toks or out_toks:
- prompt_tokens.append(in_toks)
- output_tokens.append(out_toks)
- total_tokens.append(in_toks + out_toks)
- ext = extract_extended_model_info_from_attrs(span.tags)
- cache_creation_tokens_total += ext["cache_creation_tokens"]
- cache_read_tokens_total += ext["cache_read_tokens"]
- model = span.get_tag(OTEL_GENAI_REQUEST_MODEL)
- if model:
- models.add(model)
- elif role == "tool":
- tool_latencies.append(duration_ms)
- tn = span.get_tag(OTEL_GENAI_TOOL_NAME)
- if not tn and span.operation_name.startswith("execute_tool "):
- tn = span.operation_name[len("execute_tool ") :]
- if tn:
- tool_names.append(tn)
-
- empty_stats: dict[str, float | int] = {
- "min": 0.0,
- "median": 0.0,
- "max": 0.0,
- "count": 0,
- "p50": 0.0,
- "p95": 0.0,
- "p99": 0.0,
- }
+_SCHEMA_VERSION = re.compile(r"^\d+\.\d+\.\d+(?:-[0-9A-Za-z.-]+)?(?:\+[0-9A-Za-z.-]+)?$")
- tokens_info: dict[str, Any] = {
- "total_prompt": sum(prompt_tokens) if prompt_tokens else 0,
- "total_output": sum(output_tokens) if output_tokens else 0,
- "total": sum(total_tokens) if total_tokens else 0,
- "per_llm_call": _calc_summary_stats(total_tokens) if total_tokens else dict(empty_stats),
- "cache_creation_tokens": cache_creation_tokens_total,
- "cache_read_tokens": cache_read_tokens_total,
- }
+
+def schema_version(schema_url: str | None) -> str | None:
+ """The last path segment of a schema URL when it is a version (``1.37.0``); never raises."""
+ if not schema_url or not isinstance(schema_url, str):
+ return None
+ last = schema_url.rstrip("/").rsplit("/", 1)[-1]
+ return last if _SCHEMA_VERSION.match(last) else None
+
+
+def _truncate(text: str, max_length: int = 200) -> str:
+ return text if len(text) <= max_length else text[:max_length] + "..."
+
+
+def _span_index(traces: Sequence[Trace]) -> dict[tuple[str, str], Span]:
+ return {(s.trace_id, s.span_id): s for t in traces for s in t.spans.values()}
+
+
+def _ms(span: Span | None) -> float | None:
+ return span.duration_unix_nano / 1e6 if span is not None else None
+
+
+def first_service_name(traces: Sequence[Trace]) -> str | None:
+ """``service.name`` of the first span's resource: the stable cross framework grouping key."""
+ for trace in traces:
+ for span in trace.spans.values():
+ name = attr_str(span.resource.attributes, sc.SERVICE_NAME)
+ if name:
+ return name
+ return None
+
+
+def extract_agent_identity(traces: Sequence[Trace], conversation: Conversation) -> dict[str, str | None]:
+ """Prefers ``service.name``; the agent name is a real ``gen_ai.agent.name`` or nothing."""
+ agent = next((t.agent_name for t in conversation.turns if t.agent_name), None)
+ return {"service_name": first_service_name(traces), "agent_name": agent}
+
+
+def extract_performance_metrics(conversation: Conversation, traces: Sequence[Trace]) -> dict[str, Any]:
+ spans = _span_index(traces)
+ turn_latencies = [(t.end_ns - t.start_ns) / 1e6 for t in conversation.turns]
+ calls = [c for t in conversation.turns for c in t.llm_calls]
+ call_latencies = [(c.end_ns - c.start_ns) / 1e6 for c in calls]
+ tools = [tc for t in conversation.turns for tc in t.tool_calls]
+ tool_latencies = [
+ ms for ms in (_ms(spans.get((tc.ref.trace_id, tc.ref.span_id))) for tc in tools if tc.ref) if ms is not None
+ ]
+
+ with_usage = [c.usage for c in calls if c.usage is not None]
+ per_call_totals = [u.input_tokens + u.output_tokens for u in with_usage]
+ models = sorted({c.request_model or c.response_model for c in calls if c.request_model or c.response_model})
+
+ if not turn_latencies:
+ turn_latencies = [t.duration_unix_nano / 1e6 for trace in traces for t in trace.root_spans()]
return {
"latency": {
- "overall": _calc_summary_stats(agent_latencies) if agent_latencies else dict(empty_stats),
- "llm_calls": _calc_summary_stats(llm_latencies) if llm_latencies else dict(empty_stats),
- "tool_executions": _calc_summary_stats(tool_latencies) if tool_latencies else dict(empty_stats),
+ "overall": _calc_summary_stats(turn_latencies),
+ "llm_calls": _calc_summary_stats(call_latencies),
+ "tool_executions": _calc_summary_stats(tool_latencies),
+ },
+ "tokens": {
+ "total_prompt": sum(u.input_tokens for u in with_usage),
+ "total_output": sum(u.output_tokens for u in with_usage),
+ "total": sum(per_call_totals),
+ "per_llm_call": _calc_summary_stats([float(x) for x in per_call_totals]),
+ "cache_creation_tokens": sum(u.cache_write_input_tokens for u in with_usage),
+ "cache_read_tokens": sum(u.cache_read_input_tokens for u in with_usage),
},
- "tokens": tokens_info,
"counts": {
- "llm_calls": len(llm_latencies),
- "tool_calls": len(tool_latencies),
- "invocations": len(invocation_spans) if invocation_spans else len(trace.root_spans),
+ "llm_calls": len(calls),
+ "tool_calls": len(tools),
+ "invocations": len(conversation.turns),
},
- "models": sorted(models) if models else [],
- "tool_names": sorted(set(tool_names)) if tool_names else [],
+ "models": models,
+ "tool_names": sorted({tc.name for tc in tools}),
}
-def extract_trace_metadata(trace, extractor=None) -> dict[str, Any]:
- """Extract agent name, model, timing, and preview text from a trace."""
+def extract_trace_metadata(traces: Sequence[Trace], conversation: Conversation) -> dict[str, Any]:
+ """Agent, model, start time (microseconds) and text previews of the first turn."""
metadata: dict[str, Any] = {
"agent_name": None,
"agent_id": None,
- "service_name": _first_service_name(trace),
+ "service_name": first_service_name(traces),
"model": None,
"response_model": None,
"provider": None,
@@ -190,56 +141,24 @@ def extract_trace_metadata(trace, extractor=None) -> dict[str, Any]:
"user_input_preview": None,
"final_output_preview": None,
}
-
- if extractor is None:
- extractor = get_extractor(trace)
- invocation_spans = extractor.find_invocation_spans(trace)
-
- if invocation_spans:
- first_inv = invocation_spans[0]
- metadata["agent_name"] = first_inv.get_tag(OTEL_GENAI_AGENT_NAME)
- metadata["agent_id"] = first_inv.get_tag(OTEL_GENAI_AGENT_ID)
- metadata["start_time"] = first_inv.start_time
-
- llm_spans = extractor.find_llm_spans_in(first_inv)
- if llm_spans:
- metadata["model"] = llm_spans[0].get_tag(OTEL_GENAI_REQUEST_MODEL)
-
- # NOTE: `ext` is extracted only from `llm_spans[0]` (the first LLM
- # span). If a trace mixes instrumentors or different
- # instrumentation versions, extended model info that appears only
- # on later LLM spans may not be captured here.
- ext = extract_extended_model_info_from_attrs(llm_spans[0].tags)
- if ext["response_model"]:
- metadata["response_model"] = ext["response_model"]
- if ext["provider"]:
- metadata["provider"] = ext["provider"]
- if ext["schema_version"]:
- metadata["schema_version"] = ext["schema_version"]
-
- user_text = extract_user_text_from_attrs(llm_spans[0].tags)
- if user_text:
- metadata["user_input_preview"] = _truncate(user_text)
-
- agent_text = extract_agent_response_from_attrs(llm_spans[-1].tags)
- if agent_text:
- metadata["final_output_preview"] = _truncate(agent_text)
-
- if not metadata["agent_name"] and trace.root_spans:
- metadata["agent_name"] = trace.root_spans[0].operation_name
-
- if not metadata["model"]:
- for span in trace.all_spans:
- model = span.get_tag(OTEL_GENAI_REQUEST_MODEL)
- if model:
- metadata["model"] = model
- break
-
- if not metadata["provider"]:
- for span in trace.all_spans:
- ext = extract_extended_model_info_from_attrs(span.tags)
- if ext["provider"]:
- metadata["provider"] = ext["provider"]
- break
-
+ if not conversation.turns:
+ return metadata
+ first = conversation.turns[0]
+ spans = _span_index(traces)
+ anchor = spans.get((first.ref.trace_id, first.ref.span_id))
+ metadata["agent_name"] = first.agent_name
+ metadata["agent_id"] = attr_str(anchor.attributes, sc.AGENT_ID) if anchor else None
+ metadata["start_time"] = first.start_ns // 1000
+ call = first.llm_calls[0] if first.llm_calls else None
+ if call is not None:
+ metadata["model"] = call.request_model or call.response_model
+ metadata["response_model"] = call.response_model
+ metadata["provider"] = call.provider
+ leaf = spans.get((call.ref.trace_id, call.ref.span_id))
+ if leaf is not None:
+ metadata["schema_version"] = schema_version(leaf.scope.schema_url or leaf.resource.schema_url)
+ user = text_of(first.user_input)
+ final = text_of(first.final_output)
+ metadata["user_input_preview"] = _truncate(user) if user else None
+ metadata["final_output_preview"] = _truncate(final) if final else None
return metadata
diff --git a/src/agentevals/utils/genai_messages.py b/src/agentevals/utils/genai_messages.py
deleted file mode 100644
index e0c7f3a9..00000000
--- a/src/agentevals/utils/genai_messages.py
+++ /dev/null
@@ -1,142 +0,0 @@
-"""Utilities for parsing OTel GenAI semantic convention message formats.
-
-Supports two message formats:
-- Content-based (e.g. opentelemetry-instrumentation-openai-v2):
- {"role": "user", "content": "Hello"}
- {"role": "assistant", "content": "...", "tool_calls": [{"type": "function", ...}]}
-
-- Parts-based (OTel GenAI semconv v1.36.0+):
- {"role": "user", "parts": [{"type": "text", "content": "Hello"}]}
- {"role": "assistant", "parts": [{"type": "tool_call", "name": "...", "arguments": {...}}]}
-"""
-
-from __future__ import annotations
-
-import json
-import logging
-from typing import Any
-
-logger = logging.getLogger(__name__)
-
-USER_ROLES = ("user", "human")
-ASSISTANT_ROLES = ("assistant", "model", "ai")
-
-
-def parse_json_attr(raw: str | dict | list | Any, tag_name: str = "") -> dict | list | Any:
- """Parse a JSON string from an OTel span attribute value.
-
- If *raw* is already a dict or list it is returned as-is.
- Returns ``{}`` on parse failure.
- """
- if isinstance(raw, (dict, list)):
- return raw
- if isinstance(raw, str):
- try:
- return json.loads(raw)
- except json.JSONDecodeError:
- logger.warning("Failed to parse JSON in %s: %s", tag_name, raw[:200])
- return {}
- return {}
-
-
-def extract_text_from_message(msg: dict) -> str:
- """Extract text content from a GenAI message in any supported format."""
- content = msg.get("content")
- if isinstance(content, str) and content:
- return content
- if isinstance(content, list):
- parts = [item["text"] for item in content if isinstance(item, dict) and "text" in item]
- if parts:
- return " ".join(parts)
-
- parts = msg.get("parts")
- if isinstance(parts, list):
- text_parts = []
- for part in parts:
- if not isinstance(part, dict) or part.get("type") != "text":
- continue
- text = part.get("content") or part.get("text", "")
- if text:
- text_parts.append(text)
- if text_parts:
- return " ".join(text_parts)
-
- return ""
-
-
-def extract_tool_calls_from_message(msg: dict) -> list[dict[str, Any]]:
- """Extract tool calls from a GenAI message in any supported format.
-
- Returns a normalized list of:
- {"name": str, "id": str | None, "arguments": dict}
- """
- result = []
-
- tool_calls = msg.get("tool_calls")
- if isinstance(tool_calls, list):
- for tc in tool_calls:
- if not isinstance(tc, dict):
- continue
- if tc.get("type") == "function" and "function" in tc:
- func = tc["function"]
- args = _parse_args(func.get("arguments", {}))
- result.append(
- {
- "name": func.get("name", ""),
- "id": tc.get("id"),
- "arguments": args,
- }
- )
-
- if not result:
- parts = msg.get("parts")
- if isinstance(parts, list):
- for part in parts:
- if not isinstance(part, dict) or part.get("type") != "tool_call":
- continue
- args = _parse_args(part.get("arguments", {}))
- result.append(
- {
- "name": part.get("name", ""),
- "id": part.get("id"),
- "arguments": args,
- }
- )
-
- return result
-
-
-def extract_tool_call_args_from_messages(
- messages_raw: str | list | Any,
- tool_name: str,
-) -> tuple[dict, str | None]:
- """Fallback: extract tool call args and ID from a messages attribute by matching *tool_name*.
-
- Used when a tool span lacks ``gen_ai.tool.call.arguments`` directly
- (e.g. Strands embeds the triggering tool_call in ``gen_ai.input.messages``).
-
- Returns ``(args_dict, tool_call_id_or_None)``.
- """
- messages = parse_json_attr(messages_raw, "gen_ai.input.messages")
- if not isinstance(messages, list):
- return {}, None
- for msg in messages:
- if not isinstance(msg, dict):
- continue
- for tc in extract_tool_calls_from_message(msg):
- if tc["name"] == tool_name and tc["arguments"]:
- return tc["arguments"], tc.get("id")
- return {}, None
-
-
-def _parse_args(args: Any) -> dict:
- if isinstance(args, dict):
- return args
- if isinstance(args, str):
- try:
- parsed = json.loads(args)
- if isinstance(parsed, dict):
- return parsed
- except json.JSONDecodeError:
- logger.warning("Failed to parse tool call arguments JSON: %s", args[:200])
- return {}
diff --git a/src/agentevals/utils/log_enrichment.py b/src/agentevals/utils/log_enrichment.py
deleted file mode 100644
index c58f4fa7..00000000
--- a/src/agentevals/utils/log_enrichment.py
+++ /dev/null
@@ -1,192 +0,0 @@
-"""Utilities for enriching OTel spans with GenAI log message content."""
-
-from __future__ import annotations
-
-import json
-import logging
-from collections import defaultdict
-
-from ..trace_attrs import (
- AGENTEVALS_SESSION_ID,
- OTEL_GENAI_INPUT_MESSAGES,
- OTEL_GENAI_OUTPUT_MESSAGES,
-)
-
-logger = logging.getLogger(__name__)
-
-
-def enrich_spans_with_logs(spans: list[dict], logs: list[dict], session_id: str | None = None) -> list[dict]:
- """Enrich spans with message content from GenAI logs.
-
- This reconstructs gen_ai.input.messages and gen_ai.output.messages attributes
- from log events so the converter can extract message content.
-
- When logs carry a ``span_id`` (OTLP path), each span is enriched only with
- its own logs. When logs lack ``span_id`` (WebSocket SDK path), all messages
- are injected into every span (legacy behavior).
-
- Args:
- spans: List of OTLP span dictionaries
- logs: List of GenAI log event dictionaries
- session_id: Optional session ID to add as the agentevals.session_id attribute
-
- Returns:
- List of enriched span dictionaries with message attributes added
- """
- if not logs:
- return spans
-
- logger.debug("Enriching %d spans with %d logs", len(spans), len(logs))
-
- has_span_ids = any(log.get("span_id") for log in logs)
-
- if has_span_ids:
- return _enrich_per_span(spans, logs, session_id)
- return _enrich_broadcast(spans, logs, session_id)
-
-
-def _extract_messages_from_logs(
- logs: list[dict],
-) -> tuple[list[dict], list[dict]]:
- """Extract deduplicated input/output messages from a list of log events."""
- input_messages = []
- output_messages = []
- seen_user = set()
- seen_assistant = set()
-
- for log in logs:
- event_name = log.get("event_name", "")
- body = log.get("body", {})
-
- if not isinstance(body, dict):
- continue
-
- if event_name == "gen_ai.user.message":
- user_content = body.get("content", "")
- if user_content and user_content not in seen_user:
- input_messages.append({"role": "user", "content": user_content})
- seen_user.add(user_content)
-
- elif event_name in ("gen_ai.assistant.message", "gen_ai.choice"):
- if event_name == "gen_ai.choice":
- nested = body.get("message", {}) if isinstance(body.get("message"), dict) else {}
- assistant_content = body.get("content") or nested.get("content") or ""
- tool_calls = nested.get("tool_calls", [])
- else:
- assistant_content = body.get("content") or ""
- tool_calls = body.get("tool_calls", [])
-
- message_key = f"{assistant_content}:{json.dumps(tool_calls) if tool_calls else ''}"
-
- if (assistant_content or tool_calls) and message_key not in seen_assistant:
- assistant_msg = {"role": "assistant", "content": assistant_content}
- if tool_calls:
- assistant_msg["tool_calls"] = tool_calls
- output_messages.append(assistant_msg)
- seen_assistant.add(message_key)
-
- return input_messages, output_messages
-
-
-def _append_session_id(attrs: list[dict], session_id: str | None) -> None:
- """Append the session ID attribute to *attrs* in place, if present.
-
- Written to the custom ``agentevals.session_id`` attribute rather than
- ``gen_ai.agent.name`` so real agent names (from the SDK or OTLP) are
- never overwritten.
- """
- if session_id:
- attrs.append(
- {
- "key": AGENTEVALS_SESSION_ID,
- "value": {"stringValue": session_id},
- }
- )
-
-
-def _inject_messages(
- span: dict,
- input_messages: list[dict],
- output_messages: list[dict],
- session_id: str | None,
-) -> dict:
- """Create a copy of *span* with message attributes injected."""
- span_copy = span.copy()
- attrs = list(span_copy.get("attributes", []))
- span_copy["attributes"] = attrs
-
- if input_messages:
- attrs.append(
- {
- "key": OTEL_GENAI_INPUT_MESSAGES,
- "value": {"stringValue": json.dumps(input_messages)},
- }
- )
- if output_messages:
- attrs.append(
- {
- "key": OTEL_GENAI_OUTPUT_MESSAGES,
- "value": {"stringValue": json.dumps(output_messages)},
- }
- )
- _append_session_id(attrs, session_id)
-
- return span_copy
-
-
-def _enrich_per_span(
- spans: list[dict],
- logs: list[dict],
- session_id: str | None,
-) -> list[dict]:
- """Enrich each span with only the logs emitted within that span's context."""
- logs_by_span: dict[str, list[dict]] = defaultdict(list)
- for log in logs:
- sid = log.get("span_id", "")
- if sid:
- logs_by_span[sid].append(log)
-
- enriched = []
- for span in spans:
- span_id = span.get("spanId", "")
- span_logs = logs_by_span.get(span_id, [])
-
- if span_logs:
- input_msgs, output_msgs = _extract_messages_from_logs(span_logs)
- enriched.append(_inject_messages(span, input_msgs, output_msgs, session_id))
- else:
- span_copy = span.copy()
- if session_id:
- attrs = list(span_copy.get("attributes", []))
- _append_session_id(attrs, session_id)
- span_copy["attributes"] = attrs
- enriched.append(span_copy)
-
- matched = sum(1 for sid in logs_by_span if any(s.get("spanId") == sid for s in spans))
- logger.debug(
- "Per-span enrichment: %d log groups, %d matched to spans",
- len(logs_by_span),
- matched,
- )
- return enriched
-
-
-def _enrich_broadcast(
- spans: list[dict],
- logs: list[dict],
- session_id: str | None,
-) -> list[dict]:
- """Legacy enrichment: inject all messages into every span."""
- input_messages, output_messages = _extract_messages_from_logs(logs)
-
- if not (input_messages or output_messages):
- logger.warning("No messages extracted from logs")
- return spans
-
- logger.debug(
- "Broadcast enrichment: %d user, %d assistant messages",
- len(input_messages),
- len(output_messages),
- )
-
- return [_inject_messages(span, input_messages, output_messages, session_id) for span in spans]
diff --git a/tests/api/test_live_routes.py b/tests/api/test_live_routes.py
new file mode 100644
index 00000000..22909f40
--- /dev/null
+++ b/tests/api/test_live_routes.py
@@ -0,0 +1,234 @@
+"""Receiver overload answers, grouped conversion, and debug bundles."""
+
+from __future__ import annotations
+
+import io
+import json
+import zipfile
+
+import httpx
+import pytest
+from fastapi import FastAPI
+from fastapi.testclient import TestClient
+
+from agentevals.api import debug_routes
+from agentevals.api.debug_routes import debug_router
+from agentevals.api.otlp_app import create_otlp_app
+from agentevals.api.otlp_grpc import OtlpTraceService
+from agentevals.api.routes import router
+from agentevals.otel.store import Limits
+from agentevals.streaming.manager import LiveManager
+from otel.builders import assistant, chat, named, request, user
+
+
+def _json(document: dict) -> bytes:
+ return json.dumps(document).encode()
+
+
+class TestOverload:
+ async def test_http_answers_503_with_retry_after_when_full(self):
+ mgr = LiveManager(Limits(max_sessions=1))
+ app = create_otlp_app(trace_manager=mgr)
+ async with httpx.AsyncClient(transport=httpx.ASGITransport(app=app), base_url="http://otlp") as client:
+ first = await client.post(
+ "/v1/traces",
+ content=_json(request([chat(trace="a")], named("a"))),
+ headers={"Content-Type": "application/json"},
+ )
+ full = await client.post(
+ "/v1/traces",
+ content=_json(request([chat(trace="b")], named("b"))),
+ headers={"Content-Type": "application/json"},
+ )
+ assert first.status_code == 200
+ assert full.status_code == 503
+ assert full.headers["retry-after"]
+
+ async def test_permanent_limits_stay_partial_success(self):
+ mgr = LiveManager(Limits(spans_per_trace=1))
+ app = create_otlp_app(trace_manager=mgr)
+ async with httpx.AsyncClient(transport=httpx.ASGITransport(app=app), base_url="http://otlp") as client:
+ await client.post(
+ "/v1/traces",
+ content=_json(request([chat(span_id="c1")], named("a"))),
+ headers={"Content-Type": "application/json"},
+ )
+ resp = await client.post(
+ "/v1/traces",
+ content=_json(request([chat(span_id="c2")], named("a"))),
+ headers={"Content-Type": "application/json"},
+ )
+ assert resp.status_code == 200
+ assert int(resp.json()["partialSuccess"]["rejectedSpans"]) == 1
+
+ async def test_grpc_aborts_unavailable_when_full(self):
+ import grpc
+ from opentelemetry.proto.collector.trace.v1.trace_service_pb2 import ExportTraceServiceRequest
+ from opentelemetry.proto.common.v1.common_pb2 import AnyValue, KeyValue
+ from opentelemetry.proto.trace.v1.trace_pb2 import ResourceSpans, ScopeSpans, Span
+
+ def export(name: str, trace_byte: int) -> ExportTraceServiceRequest:
+ span = Span(
+ trace_id=bytes([trace_byte]) * 16,
+ span_id=b"\x01" * 8,
+ name="chat",
+ start_time_unix_nano=1,
+ end_time_unix_nano=2,
+ )
+ span.attributes.append(KeyValue(key="gen_ai.operation.name", value=AnyValue(string_value="chat")))
+ rs = ResourceSpans(scope_spans=[ScopeSpans(spans=[span])])
+ rs.resource.attributes.append(KeyValue(key="agentevals.session_name", value=AnyValue(string_value=name)))
+ return ExportTraceServiceRequest(resource_spans=[rs])
+
+ class Context:
+ code = None
+
+ async def abort(self, code, message):
+ self.code = code
+ raise RuntimeError(message)
+
+ service = OtlpTraceService(LiveManager(Limits(max_sessions=1)))
+ await service.Export(export("a", 1), Context())
+ context = Context()
+ with pytest.raises(RuntimeError, match="capacity"):
+ await service.Export(export("b", 2), context)
+ assert context.code == grpc.StatusCode.UNAVAILABLE
+
+
+def _round_trip_file() -> bytes:
+ ask = chat(
+ trace="a", span_id="c1", inputs=[user("Roll")], outputs=[assistant(tool_calls=[("call_1", "roll_die", {})])]
+ )
+ answer = chat(
+ trace="b",
+ span_id="c2",
+ start=3_000,
+ end=4_000,
+ inputs=[
+ user("Roll"),
+ assistant(tool_calls=[("call_1", "roll_die", {})]),
+ {"role": "tool", "parts": [{"type": "tool_call_response", "id": "call_1", "response": 4}]},
+ ],
+ outputs=[assistant("4")],
+ )
+ return _json(request([ask, answer], named("run")))
+
+
+class TestConvertGrouping:
+ def _convert(self, data: dict) -> dict:
+ app = FastAPI()
+ app.include_router(router, prefix="/api")
+ files = [("trace_files", ("session.json", _round_trip_file(), "application/json"))]
+ return TestClient(app).post("/api/convert", files=files, data=data)
+
+ def test_default_is_one_entry_per_trace(self):
+ entries = self._convert({}).json()["data"]["traces"]
+ assert len(entries) == 2
+ assert all(e["traceIds"] == [e["traceId"]] for e in entries)
+
+ def test_auto_groups_a_named_session_into_one_entry(self):
+ entries = self._convert({"group_by": "auto"}).json()["data"]["traces"]
+ assert len(entries) == 1
+ assert len(entries[0]["traceIds"]) == 2
+ assert len(entries[0]["invocations"]) == 1
+
+ def test_unknown_group_by_is_rejected(self):
+ assert self._convert({"group_by": "everything"}).status_code == 400
+
+
+def _live_app(mgr: LiveManager) -> TestClient:
+ app = FastAPI()
+ app.state.trace_manager = mgr
+ app.include_router(debug_router, prefix="/api/debug")
+ return TestClient(app)
+
+
+async def _manager_with(session_name: str) -> LiveManager:
+ from agentevals.otel.decode import decode_json_document
+
+ mgr = LiveManager()
+ await mgr.ingest_spans(decode_json_document(request([chat()], named(session_name)), strict=True))
+ return mgr
+
+
+class TestDebugBundle:
+ async def test_session_directories_are_numbered_not_named(self):
+ mgr = await _manager_with("../../outside/name")
+ resp = _live_app(mgr).post("/api/debug/bundle", json={})
+ names = zipfile.ZipFile(io.BytesIO(resp.content)).namelist()
+ session_files = [n for n in names if "/sessions/" in n]
+ assert session_files and all(n.split("/sessions/")[1].startswith("0001/") for n in session_files)
+ assert not any(".." in n for n in names)
+
+ async def test_bundle_loads_back(self):
+ source = await _manager_with("captured")
+ bundle = _live_app(source).post("/api/debug/bundle", json={}).content
+ target = LiveManager()
+ resp = _live_app(target).post("/api/debug/load", files={"file": ("b.zip", bundle, "application/zip")})
+ assert resp.json()["data"]["loadedSessions"] == ["captured"]
+ assert target.sessions["captured"].span_count == 1
+
+ def test_legacy_bundle_joins_logs_by_span_id(self):
+ span_dict = chat(span_id="c1", content=False)
+ logs = [
+ {
+ "event_name": "gen_ai.user.message",
+ "span_id": span_dict["spanId"],
+ "body": {"content": "legacy hi"},
+ "timestamp": "1",
+ }
+ ]
+ buf = io.BytesIO()
+ with zipfile.ZipFile(buf, "w") as zf:
+ zf.writestr("r/sessions/old/spans.json", json.dumps([span_dict]))
+ zf.writestr("r/sessions/old/logs.json", json.dumps(logs))
+ zf.writestr("r/sessions/old/session_meta.json", json.dumps({"session_id": "old"}))
+ mgr = LiveManager()
+ resp = _live_app(mgr).post("/api/debug/load", files={"file": ("b.zip", buf.getvalue(), "application/zip")})
+ assert resp.status_code == 200
+ assert mgr.sessions["old"].log_count == 1
+
+ @pytest.mark.parametrize(
+ "cap,value", [("MAX_ENTRY_BYTES", 10), ("MAX_TOTAL_ENTRY_BYTES", 10), ("MAX_BUNDLE_BYTES", 10)]
+ )
+ def test_bundle_caps(self, monkeypatch, cap, value):
+ monkeypatch.setattr(debug_routes, cap, value)
+ buf = io.BytesIO()
+ with zipfile.ZipFile(buf, "w") as zf:
+ zf.writestr("r/sessions/s/otlp.json", json.dumps(request([chat()])))
+ resp = _live_app(LiveManager()).post(
+ "/api/debug/load", files={"file": ("b.zip", buf.getvalue(), "application/zip")}
+ )
+ assert resp.status_code == 413
+
+ def test_session_count_cap(self, monkeypatch):
+ monkeypatch.setattr(debug_routes, "MAX_BUNDLE_SESSIONS", 1)
+ buf = io.BytesIO()
+ with zipfile.ZipFile(buf, "w") as zf:
+ for n in range(2):
+ zf.writestr(f"r/sessions/{n}/otlp.json", json.dumps(request([chat(trace=f"t{n}")])))
+ resp = _live_app(LiveManager()).post(
+ "/api/debug/load", files={"file": ("b.zip", buf.getvalue(), "application/zip")}
+ )
+ assert resp.status_code == 413
+
+ def test_unreadable_entry_is_a_client_error(self):
+ buf = io.BytesIO()
+ with zipfile.ZipFile(buf, "w") as zf:
+ zf.writestr("r/sessions/s/otlp.json", "{not json")
+ resp = _live_app(LiveManager()).post(
+ "/api/debug/load", files={"file": ("b.zip", buf.getvalue(), "application/zip")}
+ )
+ assert resp.status_code == 400
+
+
+class TestMemoryBudgetSetting:
+ def test_env_sets_the_budget(self, monkeypatch):
+ monkeypatch.setenv("AGENTEVALS_LIVE_MAX_BYTES", "4096")
+ assert LiveManager().store.limits.max_bytes == 4096
+
+ @pytest.mark.parametrize("value", ["lots", "-1", "0"])
+ def test_invalid_values_are_errors(self, monkeypatch, value):
+ monkeypatch.setenv("AGENTEVALS_LIVE_MAX_BYTES", value)
+ with pytest.raises(ValueError, match="AGENTEVALS_LIVE_MAX_BYTES"):
+ LiveManager()
diff --git a/tests/fixtures/otlp/MANIFEST.md b/tests/fixtures/otlp/MANIFEST.md
new file mode 100644
index 00000000..40402557
--- /dev/null
+++ b/tests/fixtures/otlp/MANIFEST.md
@@ -0,0 +1,47 @@
+# OTLP fixture corpus
+
+Real and hand built telemetry with the turns agentevals must extract from it. `tests/genai/test_corpus.py` checks every fixture two ways: loaded from the file, and sent through the live store (spans first and logs first). Both must match the truth file.
+
+## Layout
+
+| Path | What |
+|---|---|
+| `adk_py//.json` | Google ADK (Python 2.10) recordings, traces and logs in one OTLP/JSON document. One directory per telemetry mode (`v1_*` / `v2_*` schema, span or event content, content off, `_contrib` with the OpenAI v2 instrumentation underneath, `v2proj_*` the projected upstream shape). Scenarios S1 to S6b: single turn, tools, multi turn, AgentTool delegate, transfer, failures. |
+| `samples/*.json` | kagent Jaeger exports (`helm*`, `k8s`) and a Tempo export, as captured. |
+| `hand/*.json` | Hand built shapes: cycles, duplicate ids, remote parents, content off, deprecated keys, the three event name forms for evaluation results, OpenAI v2 logs with and without span ids, Strands span events, multi trace conversations, upstream parts, the MCP client and server spans of one tool call. |
+| `*.truth.json` | The expected turns for the fixture next to it. |
+
+## Truth file
+
+```json
+{
+ "schema": "otel_core.truth/v1",
+ "fixture": "hand/adk_go_main",
+ "content_captured": true,
+ "extra_turns_allowed": false,
+ "turns": [
+ {
+ "user_text": "...",
+ "final_text": "...",
+ "intermediate_texts": [],
+ "agents": ["a"],
+ "tool_calls": [{"name": "...", "args": {}, "result": {}, "is_error": false, "error_type": null}],
+ "tokens": {"input": 0, "output": 0},
+ "external_evaluations": [{"name": "...", "score_value": 1.0, "score_label": "pass"}]
+ }
+ ],
+ "tokens": {"input": 0, "output": 0}
+}
+```
+
+* A turn is one user exchange. Delegated agents and transfers stay inside the turn.
+* Tokens count each logical model call once (a wrapper span and the provider span inside it are one call).
+* Truth reflects what the telemetry carries. With content off, texts, arguments and results are `null`, but tool names, errors and tokens are still expected.
+* Tool results compare after JSON parsing and after unwrapping ADK's `{"result": X}`.
+* `extra_turns_allowed: true` compares only the listed turns (matched by user text).
+
+## Adding a fixture
+
+1. Save the telemetry as one OTLP/JSON document (`resourceSpans` and `resourceLogs`), or a Jaeger export.
+2. Write the truth by reading the telemetry, not by running agentevals on it.
+3. Run `uv run pytest tests/genai/test_corpus.py`.
diff --git a/tests/fixtures/otlp/adk_py/v1_default/S1.json b/tests/fixtures/otlp/adk_py/v1_default/S1.json
new file mode 100644
index 00000000..3456bd32
--- /dev/null
+++ b/tests/fixtures/otlp/adk_py/v1_default/S1.json
@@ -0,0 +1,398 @@
+{
+ "resourceSpans": [
+ {
+ "resource": {
+ "attributes": [
+ {
+ "key": "telemetry.sdk.language",
+ "value": {
+ "stringValue": "python"
+ }
+ },
+ {
+ "key": "telemetry.sdk.name",
+ "value": {
+ "stringValue": "opentelemetry"
+ }
+ },
+ {
+ "key": "telemetry.sdk.version",
+ "value": {
+ "stringValue": "1.42.1"
+ }
+ },
+ {
+ "key": "service.name",
+ "value": {
+ "stringValue": "adk-empirical"
+ }
+ },
+ {
+ "key": "emp.mode",
+ "value": {
+ "stringValue": "v1_default"
+ }
+ }
+ ]
+ },
+ "scopeSpans": [
+ {
+ "scope": {
+ "name": "gcp.vertex.agent",
+ "version": "2.10.0"
+ },
+ "spans": [
+ {
+ "traceId": "17fe60ea25527132cb0ca12f3f31cb7b",
+ "spanId": "4b7dc3046b7d9e8b",
+ "parentSpanId": "5c430e12f3c2f5f2",
+ "name": "generate_content gemini-2.5-flash",
+ "kind": 1,
+ "startTimeUnixNano": "1790607508634804749",
+ "endTimeUnixNano": "1790607508635430854",
+ "attributes": [
+ {
+ "key": "gen_ai.system",
+ "value": {
+ "stringValue": "gemini"
+ }
+ },
+ {
+ "key": "gen_ai.operation.name",
+ "value": {
+ "stringValue": "generate_content"
+ }
+ },
+ {
+ "key": "gen_ai.request.model",
+ "value": {
+ "stringValue": "gemini-2.5-flash"
+ }
+ },
+ {
+ "key": "gen_ai.agent.name",
+ "value": {
+ "stringValue": "assistant"
+ }
+ },
+ {
+ "key": "gen_ai.conversation.id",
+ "value": {
+ "stringValue": "sess-S1-v1_default"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.event_id",
+ "value": {
+ "stringValue": "28caafa8-f4d7-46ea-a910-a21319769591"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.invocation_id",
+ "value": {
+ "stringValue": "e-d709efd8-d6bc-4081-87c1-af253c99c894"
+ }
+ },
+ {
+ "key": "gen_ai.response.finish_reasons",
+ "value": {
+ "arrayValue": {
+ "values": [
+ {
+ "stringValue": "stop"
+ }
+ ]
+ }
+ }
+ },
+ {
+ "key": "gen_ai.usage.input_tokens",
+ "value": {
+ "intValue": "12"
+ }
+ },
+ {
+ "key": "gen_ai.usage.output_tokens",
+ "value": {
+ "intValue": "9"
+ }
+ }
+ ],
+ "status": {},
+ "flags": 256
+ },
+ {
+ "traceId": "17fe60ea25527132cb0ca12f3f31cb7b",
+ "spanId": "5c430e12f3c2f5f2",
+ "parentSpanId": "68726a307a2bead2",
+ "name": "call_llm",
+ "kind": 1,
+ "startTimeUnixNano": "1790607508634690507",
+ "endTimeUnixNano": "1790607508635698780",
+ "attributes": [
+ {
+ "key": "gen_ai.system",
+ "value": {
+ "stringValue": "gcp.vertex.agent"
+ }
+ },
+ {
+ "key": "gen_ai.request.model",
+ "value": {
+ "stringValue": "gemini-2.5-flash"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.invocation_id",
+ "value": {
+ "stringValue": "e-d709efd8-d6bc-4081-87c1-af253c99c894"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.session_id",
+ "value": {
+ "stringValue": "sess-S1-v1_default"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.event_id",
+ "value": {
+ "stringValue": "28caafa8-f4d7-46ea-a910-a21319769591"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.llm_request",
+ "value": {
+ "stringValue": "{\"model\": \"gemini-2.5-flash\", \"config\": {\"system_instruction\": \"You are a helpful assistant.\\n\\nYou are an agent. Your internal name is \\\"assistant\\\".\", \"labels\": {\"adk_agent_name\": \"assistant\"}}, \"contents\": [{\"parts\": [{\"text\": \"Hello, who are you?\"}], \"role\": \"user\"}]}"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.llm_response",
+ "value": {
+ "stringValue": "{\"model_version\":\"gemini-2.5-flash-001\",\"content\":{\"parts\":[{\"text\":\"I am a helpful assistant built with ADK.\"}],\"role\":\"model\"},\"finish_reason\":\"STOP\",\"usage_metadata\":{\"candidates_token_count\":9,\"prompt_token_count\":12,\"total_token_count\":21}}"
+ }
+ },
+ {
+ "key": "gen_ai.usage.input_tokens",
+ "value": {
+ "intValue": "12"
+ }
+ },
+ {
+ "key": "gen_ai.usage.output_tokens",
+ "value": {
+ "intValue": "9"
+ }
+ },
+ {
+ "key": "gen_ai.response.finish_reasons",
+ "value": {
+ "arrayValue": {
+ "values": [
+ {
+ "stringValue": "stop"
+ }
+ ]
+ }
+ }
+ }
+ ],
+ "status": {},
+ "flags": 256
+ },
+ {
+ "traceId": "17fe60ea25527132cb0ca12f3f31cb7b",
+ "spanId": "68726a307a2bead2",
+ "parentSpanId": "072b78bc5d5beb54",
+ "name": "invoke_agent assistant",
+ "kind": 1,
+ "startTimeUnixNano": "1790607508623546110",
+ "endTimeUnixNano": "1790607508635730558",
+ "attributes": [
+ {
+ "key": "gen_ai.operation.name",
+ "value": {
+ "stringValue": "invoke_agent"
+ }
+ },
+ {
+ "key": "gen_ai.agent.description",
+ "value": {
+ "stringValue": ""
+ }
+ },
+ {
+ "key": "gen_ai.agent.name",
+ "value": {
+ "stringValue": "assistant"
+ }
+ },
+ {
+ "key": "gen_ai.conversation.id",
+ "value": {
+ "stringValue": "sess-S1-v1_default"
+ }
+ }
+ ],
+ "status": {},
+ "flags": 256
+ },
+ {
+ "traceId": "17fe60ea25527132cb0ca12f3f31cb7b",
+ "spanId": "072b78bc5d5beb54",
+ "name": "invocation",
+ "kind": 1,
+ "startTimeUnixNano": "1790607508622726089",
+ "endTimeUnixNano": "1790607508635789075",
+ "status": {},
+ "flags": 256
+ }
+ ],
+ "schemaUrl": "https://opentelemetry.io/schemas/1.36.0"
+ }
+ ]
+ }
+ ],
+ "resourceLogs": [
+ {
+ "resource": {
+ "attributes": [
+ {
+ "key": "telemetry.sdk.language",
+ "value": {
+ "stringValue": "python"
+ }
+ },
+ {
+ "key": "telemetry.sdk.name",
+ "value": {
+ "stringValue": "opentelemetry"
+ }
+ },
+ {
+ "key": "telemetry.sdk.version",
+ "value": {
+ "stringValue": "1.42.1"
+ }
+ },
+ {
+ "key": "service.name",
+ "value": {
+ "stringValue": "adk-empirical"
+ }
+ },
+ {
+ "key": "emp.mode",
+ "value": {
+ "stringValue": "v1_default"
+ }
+ }
+ ]
+ },
+ "scopeLogs": [
+ {
+ "scope": {
+ "name": "gcp.vertex.agent",
+ "version": "2.10.0"
+ },
+ "logRecords": [
+ {
+ "body": {
+ "kvlistValue": {
+ "values": [
+ {
+ "key": "content",
+ "value": {
+ "stringValue": ""
+ }
+ }
+ ]
+ }
+ },
+ "attributes": [
+ {
+ "key": "gen_ai.system",
+ "value": {
+ "stringValue": "gemini"
+ }
+ }
+ ],
+ "flags": 3,
+ "traceId": "17fe60ea25527132cb0ca12f3f31cb7b",
+ "spanId": "4b7dc3046b7d9e8b",
+ "observedTimeUnixNano": "1790607508634822825",
+ "eventName": "gen_ai.system.message"
+ },
+ {
+ "body": {
+ "kvlistValue": {
+ "values": [
+ {
+ "key": "content",
+ "value": {
+ "stringValue": ""
+ }
+ }
+ ]
+ }
+ },
+ "attributes": [
+ {
+ "key": "gen_ai.system",
+ "value": {
+ "stringValue": "gemini"
+ }
+ }
+ ],
+ "flags": 3,
+ "traceId": "17fe60ea25527132cb0ca12f3f31cb7b",
+ "spanId": "4b7dc3046b7d9e8b",
+ "observedTimeUnixNano": "1790607508634865765",
+ "eventName": "gen_ai.user.message"
+ },
+ {
+ "body": {
+ "kvlistValue": {
+ "values": [
+ {
+ "key": "content",
+ "value": {
+ "stringValue": ""
+ }
+ },
+ {
+ "key": "index",
+ "value": {
+ "intValue": "0"
+ }
+ },
+ {
+ "key": "finish_reason",
+ "value": {
+ "stringValue": "STOP"
+ }
+ }
+ ]
+ }
+ },
+ "attributes": [
+ {
+ "key": "gen_ai.system",
+ "value": {
+ "stringValue": "gemini"
+ }
+ }
+ ],
+ "flags": 3,
+ "traceId": "17fe60ea25527132cb0ca12f3f31cb7b",
+ "spanId": "4b7dc3046b7d9e8b",
+ "observedTimeUnixNano": "1790607508635412362",
+ "eventName": "gen_ai.choice"
+ }
+ ],
+ "schemaUrl": "https://opentelemetry.io/schemas/1.36.0"
+ }
+ ]
+ }
+ ]
+}
\ No newline at end of file
diff --git a/tests/fixtures/otlp/adk_py/v1_default/S1.truth.json b/tests/fixtures/otlp/adk_py/v1_default/S1.truth.json
new file mode 100644
index 00000000..ff92b174
--- /dev/null
+++ b/tests/fixtures/otlp/adk_py/v1_default/S1.truth.json
@@ -0,0 +1,28 @@
+{
+ "schema": "otel_core.truth/v1",
+ "fixture": "adk_py/v1_default/S1",
+ "source": "adk-python 2.10 recording, mode v1_default, scenario S1",
+ "content_captured": true,
+ "turns": [
+ {
+ "user_text": "Hello, who are you?",
+ "final_text": "I am a helpful assistant built with ADK.",
+ "intermediate_texts": [],
+ "agents": [
+ "assistant"
+ ],
+ "tool_calls": [],
+ "tokens": {
+ "input": 12,
+ "output": 9
+ }
+ }
+ ],
+ "tokens": {
+ "input": 12,
+ "output": 9
+ },
+ "notes": [
+ "single turn, no tools"
+ ]
+}
\ No newline at end of file
diff --git a/tests/fixtures/otlp/adk_py/v1_default/S2.json b/tests/fixtures/otlp/adk_py/v1_default/S2.json
new file mode 100644
index 00000000..bd4f2f31
--- /dev/null
+++ b/tests/fixtures/otlp/adk_py/v1_default/S2.json
@@ -0,0 +1,1220 @@
+{
+ "resourceSpans": [
+ {
+ "resource": {
+ "attributes": [
+ {
+ "key": "telemetry.sdk.language",
+ "value": {
+ "stringValue": "python"
+ }
+ },
+ {
+ "key": "telemetry.sdk.name",
+ "value": {
+ "stringValue": "opentelemetry"
+ }
+ },
+ {
+ "key": "telemetry.sdk.version",
+ "value": {
+ "stringValue": "1.42.1"
+ }
+ },
+ {
+ "key": "service.name",
+ "value": {
+ "stringValue": "adk-empirical"
+ }
+ },
+ {
+ "key": "emp.mode",
+ "value": {
+ "stringValue": "v1_default"
+ }
+ }
+ ]
+ },
+ "scopeSpans": [
+ {
+ "scope": {
+ "name": "gcp.vertex.agent",
+ "version": "2.10.0"
+ },
+ "spans": [
+ {
+ "traceId": "5db75e10e7450e3b3c24a67da6395432",
+ "spanId": "4ca0817f1e761991",
+ "parentSpanId": "18606a2cea77a2ed",
+ "name": "generate_content gemini-2.5-flash",
+ "kind": 1,
+ "startTimeUnixNano": "1790607508643982954",
+ "endTimeUnixNano": "1790607508644458832",
+ "attributes": [
+ {
+ "key": "gen_ai.system",
+ "value": {
+ "stringValue": "gemini"
+ }
+ },
+ {
+ "key": "gen_ai.operation.name",
+ "value": {
+ "stringValue": "generate_content"
+ }
+ },
+ {
+ "key": "gen_ai.request.model",
+ "value": {
+ "stringValue": "gemini-2.5-flash"
+ }
+ },
+ {
+ "key": "gen_ai.agent.name",
+ "value": {
+ "stringValue": "weather_agent"
+ }
+ },
+ {
+ "key": "gen_ai.conversation.id",
+ "value": {
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new file mode 100644
index 00000000..50e8cfa1
--- /dev/null
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diff --git a/tests/fixtures/otlp/adk_py/v1_default/S3.truth.json b/tests/fixtures/otlp/adk_py/v1_default/S3.truth.json
new file mode 100644
index 00000000..af3a4df4
--- /dev/null
+++ b/tests/fixtures/otlp/adk_py/v1_default/S3.truth.json
@@ -0,0 +1,68 @@
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+ "content_captured": true,
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+ "tokens": {
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+ "output": 8
+ }
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+ ],
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+ "args": {
+ "city": "Rome"
+ },
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+ "city": "Rome",
+ "forecast": "cloudy",
+ "temp_c": 17
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+ "is_error": false,
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+ }
+ ],
+ "tokens": {
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+ "user_text": "Thanks, bye!",
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+ },
+ "notes": [
+ "multi turn session (3 turns, one with a tool)"
+ ]
+}
\ No newline at end of file
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new file mode 100644
index 00000000..26c7ac18
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diff --git a/tests/fixtures/otlp/adk_py/v1_default/S4a.truth.json b/tests/fixtures/otlp/adk_py/v1_default/S4a.truth.json
new file mode 100644
index 00000000..89f7b1e4
--- /dev/null
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+}
\ No newline at end of file
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new file mode 100644
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diff --git a/tests/fixtures/otlp/adk_py/v1_default/S4b.truth.json b/tests/fixtures/otlp/adk_py/v1_default/S4b.truth.json
new file mode 100644
index 00000000..8bf95bf3
--- /dev/null
+++ b/tests/fixtures/otlp/adk_py/v1_default/S4b.truth.json
@@ -0,0 +1,40 @@
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+ ]
+}
\ No newline at end of file
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diff --git a/tests/fixtures/otlp/adk_py/v1_default/S5.truth.json b/tests/fixtures/otlp/adk_py/v1_default/S5.truth.json
new file mode 100644
index 00000000..a66d259e
--- /dev/null
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\ No newline at end of file
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+ "name": "execute_tool get_stock_price",
+ "kind": 1,
+ "startTimeUnixNano": "1790607508672424218",
+ "endTimeUnixNano": "1790607508673798625",
+ "attributes": [
+ {
+ "key": "gen_ai.operation.name",
+ "value": {
+ "stringValue": "execute_tool"
+ }
+ },
+ {
+ "key": "gen_ai.tool.description",
+ "value": {
+ "stringValue": "Returns the stock price for a ticker."
+ }
+ },
+ {
+ "key": "gen_ai.tool.name",
+ "value": {
+ "stringValue": "get_stock_price"
+ }
+ },
+ {
+ "key": "gen_ai.tool.type",
+ "value": {
+ "stringValue": "FunctionTool"
+ }
+ },
+ {
+ "key": "gen_ai.agent.name",
+ "value": {
+ "stringValue": "stock_agent"
+ }
+ },
+ {
+ "key": "error.type",
+ "value": {
+ "stringValue": "ValueError"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.llm_request",
+ "value": {
+ "stringValue": "{}"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.llm_response",
+ "value": {
+ "stringValue": "{}"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.tool_call_args",
+ "value": {
+ "stringValue": "{\"ticker\": \"XYZ\"}"
+ }
+ },
+ {
+ "key": "gen_ai.tool.call.id",
+ "value": {
+ "stringValue": ""
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.tool_response",
+ "value": {
+ "stringValue": "{\"result\": \"\"}"
+ }
+ }
+ ],
+ "events": [
+ {
+ "timeUnixNano": "1790607508673222665",
+ "name": "exception",
+ "attributes": [
+ {
+ "key": "exception.type",
+ "value": {
+ "stringValue": "ValueError"
+ }
+ },
+ {
+ "key": "exception.message",
+ "value": {
+ "stringValue": "ticker not found: XYZ"
+ }
+ },
+ {
+ "key": "exception.stacktrace",
+ "value": {
+ "stringValue": "Traceback (most recent call last):\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/telemetry/_instrumentation.py\", line 601, in record_tool_execution\n yield tel_ctx\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_caller.py\", line 921, in _execute_single_prepared_call\n tel_ctx.function_response_event = await _run_with_trace()\n ^^^^^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_caller.py\", line 864, in _run_with_trace\n raise tool_error\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_caller.py\", line 851, in _run_with_trace\n function_response = await tool_runner()\n ^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_caller.py\", line 434, in _call_tool_async\n result: object = await tool.run_async(args=args, tool_context=tool_context)\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/tools/function_tool.py\", line 419, in run_async\n return await self._invoke_callable(self.func, args_to_call)\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/tools/function_tool.py\", line 460, in _invoke_callable\n return target(**args_to_call)\n File \"/app/gen_traces.py\", line 302, in get_stock_price\n raise ValueError(f\"ticker not found: {ticker}\")\nValueError: ticker not found: XYZ\n"
+ }
+ },
+ {
+ "key": "exception.escaped",
+ "value": {
+ "stringValue": "False"
+ }
+ }
+ ]
+ },
+ {
+ "timeUnixNano": "1790607508673792586",
+ "name": "exception",
+ "attributes": [
+ {
+ "key": "exception.type",
+ "value": {
+ "stringValue": "ValueError"
+ }
+ },
+ {
+ "key": "exception.message",
+ "value": {
+ "stringValue": "ticker not found: XYZ"
+ }
+ },
+ {
+ "key": "exception.stacktrace",
+ "value": {
+ "stringValue": "Traceback (most recent call last):\n File \"/app/.venv/lib/python3.13/site-packages/opentelemetry/trace/__init__.py\", line 608, in use_span\n yield span\n File \"/app/.venv/lib/python3.13/site-packages/opentelemetry/sdk/trace/__init__.py\", line 1177, in start_as_current_span\n yield span\n File \"/app/.venv/lib/python3.13/site-packages/opentelemetry/trace/__init__.py\", line 443, in start_as_current_span\n yield span\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/telemetry/_instrumentation.py\", line 601, in record_tool_execution\n yield tel_ctx\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_caller.py\", line 921, in _execute_single_prepared_call\n tel_ctx.function_response_event = await _run_with_trace()\n ^^^^^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_caller.py\", line 864, in _run_with_trace\n raise tool_error\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_caller.py\", line 851, in _run_with_trace\n function_response = await tool_runner()\n ^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_caller.py\", line 434, in _call_tool_async\n result: object = await tool.run_async(args=args, tool_context=tool_context)\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/tools/function_tool.py\", line 419, in run_async\n return await self._invoke_callable(self.func, args_to_call)\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/tools/function_tool.py\", line 460, in _invoke_callable\n return target(**args_to_call)\n File \"/app/gen_traces.py\", line 302, in get_stock_price\n raise ValueError(f\"ticker not found: {ticker}\")\nValueError: ticker not found: XYZ\n"
+ }
+ },
+ {
+ "key": "exception.escaped",
+ "value": {
+ "stringValue": "False"
+ }
+ }
+ ]
+ }
+ ],
+ "status": {
+ "message": "ValueError: ticker not found: XYZ",
+ "code": 2
+ },
+ "flags": 256
+ },
+ {
+ "traceId": "12daceeeb736af5fea01cb83afeae704",
+ "spanId": "1047ef5e2eaf9550",
+ "parentSpanId": "f364d221b9c18c46",
+ "name": "call_llm",
+ "kind": 1,
+ "startTimeUnixNano": "1790607508672077285",
+ "endTimeUnixNano": "1790607508673877591",
+ "attributes": [
+ {
+ "key": "gen_ai.system",
+ "value": {
+ "stringValue": "gcp.vertex.agent"
+ }
+ },
+ {
+ "key": "gen_ai.request.model",
+ "value": {
+ "stringValue": "gemini-2.5-flash"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.invocation_id",
+ "value": {
+ "stringValue": "e-2bdd5dae-ee95-4076-84fa-a42d0acba026"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.session_id",
+ "value": {
+ "stringValue": "sess-S6a-v1_default"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.event_id",
+ "value": {
+ "stringValue": "3d1d538b-315b-4d90-9052-0bbb3721b474"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.llm_request",
+ "value": {
+ "stringValue": "{\"model\": \"gemini-2.5-flash\", \"config\": {\"system_instruction\": \"Answer stock questions using tools.\\n\\nYou are an agent. Your internal name is \\\"stock_agent\\\".\", \"tools\": [{\"function_declarations\": [{\"description\": \"Returns the stock price for a ticker.\", \"name\": \"get_stock_price\", \"parameters_json_schema\": {\"properties\": {\"ticker\": {\"title\": \"Ticker\", \"type\": \"string\"}}, \"required\": [\"ticker\"], \"title\": \"get_stock_priceParams\", \"type\": \"object\"}}]}], \"labels\": {\"adk_agent_name\": \"stock_agent\"}}, \"contents\": [{\"parts\": [{\"text\": \"What is the price of XYZ?\"}], \"role\": \"user\"}]}"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.llm_response",
+ "value": {
+ "stringValue": "{\"model_version\":\"gemini-2.5-flash-001\",\"content\":{\"parts\":[{\"function_call\":{\"args\":{\"ticker\":\"XYZ\"},\"name\":\"get_stock_price\"}}],\"role\":\"model\"},\"finish_reason\":\"STOP\",\"usage_metadata\":{\"candidates_token_count\":6,\"prompt_token_count\":18,\"total_token_count\":24}}"
+ }
+ },
+ {
+ "key": "gen_ai.usage.input_tokens",
+ "value": {
+ "intValue": "18"
+ }
+ },
+ {
+ "key": "gen_ai.usage.output_tokens",
+ "value": {
+ "intValue": "6"
+ }
+ },
+ {
+ "key": "gen_ai.response.finish_reasons",
+ "value": {
+ "arrayValue": {
+ "values": [
+ {
+ "stringValue": "stop"
+ }
+ ]
+ }
+ }
+ }
+ ],
+ "status": {},
+ "flags": 256
+ },
+ {
+ "traceId": "12daceeeb736af5fea01cb83afeae704",
+ "spanId": "f364d221b9c18c46",
+ "parentSpanId": "5bcb021d5e7551b0",
+ "name": "invoke_agent stock_agent",
+ "kind": 1,
+ "startTimeUnixNano": "1790607508671412114",
+ "endTimeUnixNano": "1790607508675187859",
+ "attributes": [
+ {
+ "key": "gen_ai.operation.name",
+ "value": {
+ "stringValue": "invoke_agent"
+ }
+ },
+ {
+ "key": "gen_ai.agent.description",
+ "value": {
+ "stringValue": ""
+ }
+ },
+ {
+ "key": "gen_ai.agent.name",
+ "value": {
+ "stringValue": "stock_agent"
+ }
+ },
+ {
+ "key": "gen_ai.conversation.id",
+ "value": {
+ "stringValue": "sess-S6a-v1_default"
+ }
+ }
+ ],
+ "events": [
+ {
+ "timeUnixNano": "1790607508675183194",
+ "name": "exception",
+ "attributes": [
+ {
+ "key": "exception.type",
+ "value": {
+ "stringValue": "ValueError"
+ }
+ },
+ {
+ "key": "exception.message",
+ "value": {
+ "stringValue": "ticker not found: XYZ"
+ }
+ },
+ {
+ "key": "exception.stacktrace",
+ "value": {
+ "stringValue": "Traceback (most recent call last):\n File \"/app/.venv/lib/python3.13/site-packages/opentelemetry/trace/__init__.py\", line 608, in use_span\n yield span\n File \"/app/.venv/lib/python3.13/site-packages/opentelemetry/sdk/trace/__init__.py\", line 1177, in start_as_current_span\n yield span\n File \"/app/.venv/lib/python3.13/site-packages/opentelemetry/trace/__init__.py\", line 443, in start_as_current_span\n yield span\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/telemetry/_instrumentation.py\", line 561, in record_agent_invocation\n yield scope\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/agents/base_agent.py\", line 392, in _run\n async for event in agen:\n yield event\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/agents/llm_agent.py\", line 632, in _run_async_impl\n async for event in agen:\n ...<8 lines>...\n should_pause = True\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/base_llm_flow.py\", line 359, in run_async\n async for event in agen:\n last_event = event\n yield event\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/base_llm_flow.py\", line 455, in _run_one_step_async\n async for event in agen:\n ...<5 lines>...\n yield event\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/base_llm_flow.py\", line 556, in _postprocess_async\n async for event in agen:\n yield event\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/base_llm_flow.py\", line 610, in _postprocess_handle_function_calls_async\n async for event in agen:\n yield event\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/core/_function_call_postprocessor.py\", line 68, in postprocess_handle_function_calls_async\n if function_response_event := await functions.handle_function_calls_async(\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n invocation_context, function_call_event, llm_request.tools_dict\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n ):\n ^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_functions.py\", line 277, in handle_function_calls_async\n return await functions.handle_function_call_list_async(\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n ...<5 lines>...\n )\n ^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_functions.py\", line 257, in handle_function_call_list_async\n return await _batch_tool_executor.handle_function_call_list_async(\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n ...<5 lines>...\n )\n ^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_batch_executor.py\", line 405, in handle_function_call_list_async\n return await _execute_prepared_function_calls_async(\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n invocation_context, prepared_calls, agent\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n )\n ^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_batch_executor.py\", line 326, in _execute_prepared_function_calls_async\n maybe_function_response_events = await _gather_or_cancel(tasks)\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_batch_executor.py\", line 192, in _gather_or_cancel\n return list(await asyncio.gather(*tasks))\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_caller.py\", line 938, in _execute_single_prepared_call_async\n return await _execute_single_prepared_call(\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n ...<8 lines>...\n )\n ^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_caller.py\", line 921, in _execute_single_prepared_call\n tel_ctx.function_response_event = await _run_with_trace()\n ^^^^^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_caller.py\", line 864, in _run_with_trace\n raise tool_error\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_caller.py\", line 851, in _run_with_trace\n function_response = await tool_runner()\n ^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_caller.py\", line 434, in _call_tool_async\n result: object = await tool.run_async(args=args, tool_context=tool_context)\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/tools/function_tool.py\", line 419, in run_async\n return await self._invoke_callable(self.func, args_to_call)\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/tools/function_tool.py\", line 460, in _invoke_callable\n return target(**args_to_call)\n File \"/app/gen_traces.py\", line 302, in get_stock_price\n raise ValueError(f\"ticker not found: {ticker}\")\nValueError: ticker not found: XYZ\n"
+ }
+ },
+ {
+ "key": "exception.escaped",
+ "value": {
+ "stringValue": "False"
+ }
+ }
+ ]
+ }
+ ],
+ "status": {
+ "message": "ValueError: ticker not found: XYZ",
+ "code": 2
+ },
+ "flags": 256
+ },
+ {
+ "traceId": "12daceeeb736af5fea01cb83afeae704",
+ "spanId": "5bcb021d5e7551b0",
+ "name": "invocation",
+ "kind": 1,
+ "startTimeUnixNano": "1790607508671007913",
+ "endTimeUnixNano": "1790607508680287366",
+ "events": [
+ {
+ "timeUnixNano": "1790607508680281826",
+ "name": "exception",
+ "attributes": [
+ {
+ "key": "exception.type",
+ "value": {
+ "stringValue": "ValueError"
+ }
+ },
+ {
+ "key": "exception.message",
+ "value": {
+ "stringValue": "ticker not found: XYZ"
+ }
+ },
+ {
+ "key": "exception.stacktrace",
+ "value": {
+ "stringValue": "Traceback (most recent call last):\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/workflow/_node_runner_utils.py\", line 241, in _drive_root_node\n await root_ctx._run_node_internal( # pylint: disable=protected-access\n ...<3 lines>...\n )\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/agents/context.py\", line 515, in _run_node_internal\n return await _dynamic_node_scheduler.run_node_internal(\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n ...<12 lines>...\n )\n ^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/workflow/_dynamic_node_scheduler.py\", line 738, in run_node_internal\n raise DynamicNodeFailError(\n ...<3 lines>...\n )\ngoogle.adk.workflow._errors.DynamicNodeFailError: Dynamic node stock_agent failed\n\nDuring handling of the above exception, another exception occurred:\n\nTraceback (most recent call last):\n File \"/app/.venv/lib/python3.13/site-packages/opentelemetry/trace/__init__.py\", line 608, in use_span\n yield span\n File \"/app/.venv/lib/python3.13/site-packages/opentelemetry/sdk/trace/__init__.py\", line 1177, in start_as_current_span\n yield span\n File \"/app/.venv/lib/python3.13/site-packages/opentelemetry/trace/__init__.py\", line 443, in start_as_current_span\n yield span\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/telemetry/_instrumentation.py\", line 159, in record_invocation\n yield\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/workflow/_node_runner_utils.py\", line 274, in _run\n await runner._cleanup_root_task(task, runner.agent.name) # pylint: disable=protected-access\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/runners.py\", line 812, in _cleanup_root_task\n await task\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/workflow/_node_runner_utils.py\", line 250, in _drive_root_node\n raise e.error\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/workflow/_node_runner.py\", line 138, in run\n await self._execute_node(ctx, node_input)\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/workflow/_node_runner.py\", line 304, in _execute_node\n await self._run_node_loop(ctx, node_input)\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/workflow/_node_runner.py\", line 318, in _run_node_loop\n async for event in agen:\n self._track_event_in_context(event, ctx)\n await self._enqueue_event(event, ctx)\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/workflow/_base_node.py\", line 190, in run\n async for item in agen:\n ...<12 lines>...\n yield Event(output=validated)\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/agents/llm_agent.py\", line 683, in _run_impl\n async for event in agen:\n ...<4 lines>...\n yield event\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/workflow/_llm_agent_wrapper.py\", line 482, in run_llm_agent_as_node\n async for event in run_iter:\n ...<31 lines>...\n break\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/agents/base_agent.py\", line 328, in run_async\n async for event in agen:\n yield event\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/agents/base_agent.py\", line 422, in _run_with_lifecycle\n async for event in agen:\n yield event\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/utils/_runner_utils.py\", line 42, in _with_caller_context\n async for item in a:\n ...<4 lines>...\n context.detach(token)\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/agents/base_agent.py\", line 392, in _run\n async for event in agen:\n yield event\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/agents/llm_agent.py\", line 632, in _run_async_impl\n async for event in agen:\n ...<8 lines>...\n should_pause = True\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/base_llm_flow.py\", line 359, in run_async\n async for event in agen:\n last_event = event\n yield event\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/base_llm_flow.py\", line 455, in _run_one_step_async\n async for event in agen:\n ...<5 lines>...\n yield event\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/base_llm_flow.py\", line 556, in _postprocess_async\n async for event in agen:\n yield event\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/base_llm_flow.py\", line 610, in _postprocess_handle_function_calls_async\n async for event in agen:\n yield event\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/core/_function_call_postprocessor.py\", line 68, in postprocess_handle_function_calls_async\n if function_response_event := await functions.handle_function_calls_async(\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n invocation_context, function_call_event, llm_request.tools_dict\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n ):\n ^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_functions.py\", line 277, in handle_function_calls_async\n return await functions.handle_function_call_list_async(\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n ...<5 lines>...\n )\n ^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_functions.py\", line 257, in handle_function_call_list_async\n return await _batch_tool_executor.handle_function_call_list_async(\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n ...<5 lines>...\n )\n ^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_batch_executor.py\", line 405, in handle_function_call_list_async\n return await _execute_prepared_function_calls_async(\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n invocation_context, prepared_calls, agent\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n )\n ^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_batch_executor.py\", line 326, in _execute_prepared_function_calls_async\n maybe_function_response_events = await _gather_or_cancel(tasks)\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_batch_executor.py\", line 192, in _gather_or_cancel\n return list(await asyncio.gather(*tasks))\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_caller.py\", line 938, in _execute_single_prepared_call_async\n return await _execute_single_prepared_call(\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n ...<8 lines>...\n )\n ^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_caller.py\", line 921, in _execute_single_prepared_call\n tel_ctx.function_response_event = await _run_with_trace()\n ^^^^^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_caller.py\", line 864, in _run_with_trace\n raise tool_error\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_caller.py\", line 851, in _run_with_trace\n function_response = await tool_runner()\n ^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_caller.py\", line 434, in _call_tool_async\n result: object = await tool.run_async(args=args, tool_context=tool_context)\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/tools/function_tool.py\", line 419, in run_async\n return await self._invoke_callable(self.func, args_to_call)\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/tools/function_tool.py\", line 460, in _invoke_callable\n return target(**args_to_call)\n File \"/app/gen_traces.py\", line 302, in get_stock_price\n raise ValueError(f\"ticker not found: {ticker}\")\nValueError: ticker not found: XYZ\n"
+ }
+ },
+ {
+ "key": "exception.escaped",
+ "value": {
+ "stringValue": "False"
+ }
+ }
+ ]
+ }
+ ],
+ "status": {
+ "message": "ValueError: ticker not found: XYZ",
+ "code": 2
+ },
+ "flags": 256
+ }
+ ],
+ "schemaUrl": "https://opentelemetry.io/schemas/1.36.0"
+ }
+ ]
+ }
+ ],
+ "resourceLogs": [
+ {
+ "resource": {
+ "attributes": [
+ {
+ "key": "telemetry.sdk.language",
+ "value": {
+ "stringValue": "python"
+ }
+ },
+ {
+ "key": "telemetry.sdk.name",
+ "value": {
+ "stringValue": "opentelemetry"
+ }
+ },
+ {
+ "key": "telemetry.sdk.version",
+ "value": {
+ "stringValue": "1.42.1"
+ }
+ },
+ {
+ "key": "service.name",
+ "value": {
+ "stringValue": "adk-empirical"
+ }
+ },
+ {
+ "key": "emp.mode",
+ "value": {
+ "stringValue": "v1_default"
+ }
+ }
+ ]
+ },
+ "scopeLogs": [
+ {
+ "scope": {
+ "name": "gcp.vertex.agent",
+ "version": "2.10.0"
+ },
+ "logRecords": [
+ {
+ "body": {
+ "kvlistValue": {
+ "values": [
+ {
+ "key": "content",
+ "value": {
+ "stringValue": ""
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+ }
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+ }
+ },
+ "attributes": [
+ {
+ "key": "gen_ai.system",
+ "value": {
+ "stringValue": "gemini"
+ }
+ }
+ ],
+ "flags": 3,
+ "traceId": "12daceeeb736af5fea01cb83afeae704",
+ "spanId": "b0dee8ee609064a7",
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+ "eventName": "gen_ai.system.message"
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+ }
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+ "attributes": [
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+ "key": "gen_ai.system",
+ "value": {
+ "stringValue": "gemini"
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+ "flags": 3,
+ "traceId": "12daceeeb736af5fea01cb83afeae704",
+ "spanId": "b0dee8ee609064a7",
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+ "eventName": "gen_ai.user.message"
+ },
+ {
+ "body": {
+ "kvlistValue": {
+ "values": [
+ {
+ "key": "content",
+ "value": {
+ "stringValue": ""
+ }
+ },
+ {
+ "key": "index",
+ "value": {
+ "intValue": "0"
+ }
+ },
+ {
+ "key": "finish_reason",
+ "value": {
+ "stringValue": "STOP"
+ }
+ }
+ ]
+ }
+ },
+ "attributes": [
+ {
+ "key": "gen_ai.system",
+ "value": {
+ "stringValue": "gemini"
+ }
+ }
+ ],
+ "flags": 3,
+ "traceId": "12daceeeb736af5fea01cb83afeae704",
+ "spanId": "b0dee8ee609064a7",
+ "observedTimeUnixNano": "1790607508672230135",
+ "eventName": "gen_ai.choice"
+ }
+ ],
+ "schemaUrl": "https://opentelemetry.io/schemas/1.36.0"
+ }
+ ]
+ }
+ ]
+}
\ No newline at end of file
diff --git a/tests/fixtures/otlp/adk_py/v1_default/S6a.truth.json b/tests/fixtures/otlp/adk_py/v1_default/S6a.truth.json
new file mode 100644
index 00000000..52fa8bc3
--- /dev/null
+++ b/tests/fixtures/otlp/adk_py/v1_default/S6a.truth.json
@@ -0,0 +1,39 @@
+{
+ "schema": "otel_core.truth/v1",
+ "fixture": "adk_py/v1_default/S6a",
+ "source": "adk-python 2.10 recording, mode v1_default, scenario S6a",
+ "content_captured": true,
+ "turns": [
+ {
+ "user_text": "What is the price of XYZ?",
+ "final_text": null,
+ "intermediate_texts": [],
+ "agents": [
+ "stock_agent"
+ ],
+ "tool_calls": [
+ {
+ "name": "get_stock_price",
+ "args": {
+ "ticker": "XYZ"
+ },
+ "result": null,
+ "is_error": true,
+ "error_type": "ValueError"
+ }
+ ],
+ "tokens": {
+ "input": 18,
+ "output": 6
+ }
+ }
+ ],
+ "tokens": {
+ "input": 18,
+ "output": 6
+ },
+ "notes": [
+ "tool raises, no error callback (run aborts)",
+ "run aborted: ValueError: ticker not found: XYZ"
+ ]
+}
\ No newline at end of file
diff --git a/tests/fixtures/otlp/adk_py/v1_default/S6b.json b/tests/fixtures/otlp/adk_py/v1_default/S6b.json
new file mode 100644
index 00000000..032f1078
--- /dev/null
+++ b/tests/fixtures/otlp/adk_py/v1_default/S6b.json
@@ -0,0 +1,791 @@
+{
+ "resourceSpans": [
+ {
+ "resource": {
+ "attributes": [
+ {
+ "key": "telemetry.sdk.language",
+ "value": {
+ "stringValue": "python"
+ }
+ },
+ {
+ "key": "telemetry.sdk.name",
+ "value": {
+ "stringValue": "opentelemetry"
+ }
+ },
+ {
+ "key": "telemetry.sdk.version",
+ "value": {
+ "stringValue": "1.42.1"
+ }
+ },
+ {
+ "key": "service.name",
+ "value": {
+ "stringValue": "adk-empirical"
+ }
+ },
+ {
+ "key": "emp.mode",
+ "value": {
+ "stringValue": "v1_default"
+ }
+ }
+ ]
+ },
+ "scopeSpans": [
+ {
+ "scope": {
+ "name": "gcp.vertex.agent",
+ "version": "2.10.0"
+ },
+ "spans": [
+ {
+ "traceId": "9bdc9f43c13b5be4cbb8c01c2fd67719",
+ "spanId": "60461e879c9e72b3",
+ "parentSpanId": "be9c21cd9dc10072",
+ "name": "generate_content gemini-2.5-flash",
+ "kind": 1,
+ "startTimeUnixNano": "1790607508682904361",
+ "endTimeUnixNano": "1790607508683045425",
+ "attributes": [
+ {
+ "key": "gen_ai.system",
+ "value": {
+ "stringValue": "gemini"
+ }
+ },
+ {
+ "key": "gen_ai.operation.name",
+ "value": {
+ "stringValue": "generate_content"
+ }
+ },
+ {
+ "key": "gen_ai.request.model",
+ "value": {
+ "stringValue": "gemini-2.5-flash"
+ }
+ },
+ {
+ "key": "gen_ai.agent.name",
+ "value": {
+ "stringValue": "stock_agent"
+ }
+ },
+ {
+ "key": "gen_ai.conversation.id",
+ "value": {
+ "stringValue": "sess-S6b-v1_default"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.event_id",
+ "value": {
+ "stringValue": "05811c53-a870-4676-a814-78dd35079ce6"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.invocation_id",
+ "value": {
+ "stringValue": "e-c6a015a9-8c73-49e9-8d16-d1eba01d4411"
+ }
+ },
+ {
+ "key": "gen_ai.response.finish_reasons",
+ "value": {
+ "arrayValue": {
+ "values": [
+ {
+ "stringValue": "stop"
+ }
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+ }
+ },
+ {
+ "key": "gen_ai.usage.input_tokens",
+ "value": {
+ "intValue": "18"
+ }
+ },
+ {
+ "key": "gen_ai.usage.output_tokens",
+ "value": {
+ "intValue": "6"
+ }
+ }
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+ "status": {},
+ "flags": 256
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+ "endTimeUnixNano": "1790607508683462287",
+ "attributes": [
+ {
+ "key": "gen_ai.operation.name",
+ "value": {
+ "stringValue": "execute_tool"
+ }
+ },
+ {
+ "key": "gen_ai.tool.description",
+ "value": {
+ "stringValue": "Returns the stock price for a ticker."
+ }
+ },
+ {
+ "key": "gen_ai.tool.name",
+ "value": {
+ "stringValue": "get_stock_price"
+ }
+ },
+ {
+ "key": "gen_ai.tool.type",
+ "value": {
+ "stringValue": "FunctionTool"
+ }
+ },
+ {
+ "key": "gen_ai.agent.name",
+ "value": {
+ "stringValue": "stock_agent"
+ }
+ },
+ {
+ "key": "error.type",
+ "value": {
+ "stringValue": "TOOL_ERROR"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.llm_request",
+ "value": {
+ "stringValue": "{}"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.llm_response",
+ "value": {
+ "stringValue": "{}"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.tool_call_args",
+ "value": {
+ "stringValue": "{\"ticker\": \"XYZ\"}"
+ }
+ },
+ {
+ "key": "gen_ai.tool.call.id",
+ "value": {
+ "stringValue": "adk-fbeda25c-0c15-4afc-ad71-92d277db9dd4"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.event_id",
+ "value": {
+ "stringValue": "fecccc3d-9376-454e-b483-6688110a5316"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.tool_response",
+ "value": {
+ "stringValue": "{\"error\": \"ValueError: ticker not found: XYZ\"}"
+ }
+ }
+ ],
+ "status": {
+ "message": "TOOL_ERROR",
+ "code": 2
+ },
+ "flags": 256
+ },
+ {
+ "traceId": "9bdc9f43c13b5be4cbb8c01c2fd67719",
+ "spanId": "be9c21cd9dc10072",
+ "parentSpanId": "1770b59c2d53d142",
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+ "startTimeUnixNano": "1790607508682783580",
+ "endTimeUnixNano": "1790607508683538795",
+ "attributes": [
+ {
+ "key": "gen_ai.system",
+ "value": {
+ "stringValue": "gcp.vertex.agent"
+ }
+ },
+ {
+ "key": "gen_ai.request.model",
+ "value": {
+ "stringValue": "gemini-2.5-flash"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.invocation_id",
+ "value": {
+ "stringValue": "e-c6a015a9-8c73-49e9-8d16-d1eba01d4411"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.session_id",
+ "value": {
+ "stringValue": "sess-S6b-v1_default"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.event_id",
+ "value": {
+ "stringValue": "05811c53-a870-4676-a814-78dd35079ce6"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.llm_request",
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+ }
+ },
+ {
+ "key": "gcp.vertex.agent.llm_response",
+ "value": {
+ "stringValue": "{\"model_version\":\"gemini-2.5-flash-001\",\"content\":{\"parts\":[{\"function_call\":{\"args\":{\"ticker\":\"XYZ\"},\"name\":\"get_stock_price\"}}],\"role\":\"model\"},\"finish_reason\":\"STOP\",\"usage_metadata\":{\"candidates_token_count\":6,\"prompt_token_count\":18,\"total_token_count\":24}}"
+ }
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+ {
+ "key": "gen_ai.usage.input_tokens",
+ "value": {
+ "intValue": "18"
+ }
+ },
+ {
+ "key": "gen_ai.usage.output_tokens",
+ "value": {
+ "intValue": "6"
+ }
+ },
+ {
+ "key": "gen_ai.response.finish_reasons",
+ "value": {
+ "arrayValue": {
+ "values": [
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+ "attributes": [
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+ "key": "gen_ai.system",
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+ "key": "gen_ai.operation.name",
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+ "stringValue": "generate_content"
+ }
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+ "key": "gen_ai.request.model",
+ "value": {
+ "stringValue": "gemini-2.5-flash"
+ }
+ },
+ {
+ "key": "gen_ai.agent.name",
+ "value": {
+ "stringValue": "stock_agent"
+ }
+ },
+ {
+ "key": "gen_ai.conversation.id",
+ "value": {
+ "stringValue": "sess-S6b-v1_default"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.event_id",
+ "value": {
+ "stringValue": "b51b209a-546d-4d75-9683-895b8faafd6b"
+ }
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+ {
+ "key": "gcp.vertex.agent.invocation_id",
+ "value": {
+ "stringValue": "e-c6a015a9-8c73-49e9-8d16-d1eba01d4411"
+ }
+ },
+ {
+ "key": "gen_ai.response.finish_reasons",
+ "value": {
+ "arrayValue": {
+ "values": [
+ {
+ "stringValue": "stop"
+ }
+ ]
+ }
+ }
+ },
+ {
+ "key": "gen_ai.usage.input_tokens",
+ "value": {
+ "intValue": "40"
+ }
+ },
+ {
+ "key": "gen_ai.usage.output_tokens",
+ "value": {
+ "intValue": "12"
+ }
+ }
+ ],
+ "status": {},
+ "flags": 256
+ },
+ {
+ "traceId": "9bdc9f43c13b5be4cbb8c01c2fd67719",
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+ "parentSpanId": "1770b59c2d53d142",
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+ "kind": 1,
+ "startTimeUnixNano": "1790607508683957115",
+ "endTimeUnixNano": "1790607508684241034",
+ "attributes": [
+ {
+ "key": "gen_ai.system",
+ "value": {
+ "stringValue": "gcp.vertex.agent"
+ }
+ },
+ {
+ "key": "gen_ai.request.model",
+ "value": {
+ "stringValue": "gemini-2.5-flash"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.invocation_id",
+ "value": {
+ "stringValue": "e-c6a015a9-8c73-49e9-8d16-d1eba01d4411"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.session_id",
+ "value": {
+ "stringValue": "sess-S6b-v1_default"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.event_id",
+ "value": {
+ "stringValue": "b51b209a-546d-4d75-9683-895b8faafd6b"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.llm_request",
+ "value": {
+ "stringValue": "{\"model\": \"gemini-2.5-flash\", \"config\": {\"system_instruction\": \"Answer stock questions using tools.\\n\\nYou are an agent. Your internal name is \\\"stock_agent\\\".\", \"tools\": [{\"function_declarations\": [{\"description\": \"Returns the stock price for a ticker.\", \"name\": \"get_stock_price\", \"parameters_json_schema\": {\"properties\": {\"ticker\": {\"title\": \"Ticker\", \"type\": \"string\"}}, \"required\": [\"ticker\"], \"title\": \"get_stock_priceParams\", \"type\": \"object\"}}]}], \"labels\": {\"adk_agent_name\": \"stock_agent\"}}, \"contents\": [{\"parts\": [{\"text\": \"What is the price of XYZ?\"}], \"role\": \"user\"}, {\"parts\": [{\"function_call\": {\"args\": {\"ticker\": \"XYZ\"}, \"name\": \"get_stock_price\"}}], \"role\": \"model\"}, {\"parts\": [{\"function_response\": {\"name\": \"get_stock_price\", \"response\": {\"error\": \"ValueError: ticker not found: XYZ\"}}}], \"role\": \"user\"}]}"
+ }
+ },
+ {
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diff --git a/tests/fixtures/otlp/adk_py/v1_default/S6b.truth.json b/tests/fixtures/otlp/adk_py/v1_default/S6b.truth.json
new file mode 100644
index 00000000..34d20b77
--- /dev/null
+++ b/tests/fixtures/otlp/adk_py/v1_default/S6b.truth.json
@@ -0,0 +1,40 @@
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+ "fixture": "adk_py/v1_default/S6b",
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+ "content_captured": true,
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+ "tokens": {
+ "input": 58,
+ "output": 18
+ },
+ "notes": [
+ "tool raises, on_tool_error_callback turns it into an error response"
+ ]
+}
\ No newline at end of file
diff --git a/tests/fixtures/otlp/adk_py/v1_default_contrib/S1.json b/tests/fixtures/otlp/adk_py/v1_default_contrib/S1.json
new file mode 100644
index 00000000..c6407cbe
--- /dev/null
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diff --git a/tests/fixtures/otlp/adk_py/v1_default_contrib/S1.truth.json b/tests/fixtures/otlp/adk_py/v1_default_contrib/S1.truth.json
new file mode 100644
index 00000000..46a668d0
--- /dev/null
+++ b/tests/fixtures/otlp/adk_py/v1_default_contrib/S1.truth.json
@@ -0,0 +1,29 @@
+{
+ "schema": "otel_core.truth/v1",
+ "fixture": "adk_py/v1_default_contrib/S1",
+ "source": "adk-python 2.10 recording, mode v1_default_contrib, scenario S1",
+ "content_captured": true,
+ "turns": [
+ {
+ "user_text": "Hello, who are you?",
+ "final_text": "I am a helpful assistant built with ADK.",
+ "intermediate_texts": [],
+ "agents": [
+ "assistant"
+ ],
+ "tool_calls": [],
+ "tokens": {
+ "input": 12,
+ "output": 9
+ }
+ }
+ ],
+ "tokens": {
+ "input": 12,
+ "output": 9
+ },
+ "notes": [
+ "single turn, no tools",
+ "evidence lost model call agent names in this mode; agents taken from the same scenario in v2_default"
+ ]
+}
\ No newline at end of file
diff --git a/tests/fixtures/otlp/adk_py/v1_default_contrib/S2.json b/tests/fixtures/otlp/adk_py/v1_default_contrib/S2.json
new file mode 100644
index 00000000..d52fd42d
--- /dev/null
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diff --git a/tests/fixtures/otlp/adk_py/v1_default_contrib/S2.truth.json b/tests/fixtures/otlp/adk_py/v1_default_contrib/S2.truth.json
new file mode 100644
index 00000000..a3f72abd
--- /dev/null
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\ No newline at end of file
diff --git a/tests/fixtures/otlp/adk_py/v1_default_contrib/S3.json b/tests/fixtures/otlp/adk_py/v1_default_contrib/S3.json
new file mode 100644
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diff --git a/tests/fixtures/otlp/adk_py/v1_default_contrib/S3.truth.json b/tests/fixtures/otlp/adk_py/v1_default_contrib/S3.truth.json
new file mode 100644
index 00000000..255eb86c
--- /dev/null
+++ b/tests/fixtures/otlp/adk_py/v1_default_contrib/S3.truth.json
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+}
\ No newline at end of file
diff --git a/tests/fixtures/otlp/adk_py/v1_default_contrib/S4a.json b/tests/fixtures/otlp/adk_py/v1_default_contrib/S4a.json
new file mode 100644
index 00000000..a81945c3
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diff --git a/tests/fixtures/otlp/adk_py/v1_default_contrib/S4a.truth.json b/tests/fixtures/otlp/adk_py/v1_default_contrib/S4a.truth.json
new file mode 100644
index 00000000..279f479a
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\ No newline at end of file
diff --git a/tests/fixtures/otlp/adk_py/v1_default_contrib/S4b.json b/tests/fixtures/otlp/adk_py/v1_default_contrib/S4b.json
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diff --git a/tests/fixtures/otlp/adk_py/v1_default_contrib/S4b.truth.json b/tests/fixtures/otlp/adk_py/v1_default_contrib/S4b.truth.json
new file mode 100644
index 00000000..29e7a4c0
--- /dev/null
+++ b/tests/fixtures/otlp/adk_py/v1_default_contrib/S4b.truth.json
@@ -0,0 +1,40 @@
+{
+ "schema": "otel_core.truth/v1",
+ "fixture": "adk_py/v1_default_contrib/S4b",
+ "source": "adk-python 2.10 recording, mode v1_default_contrib, scenario S4b",
+ "content_captured": true,
+ "turns": [
+ {
+ "user_text": "Please research the capital of France.",
+ "final_text": "According to research: the capital of France is Paris.",
+ "intermediate_texts": [],
+ "agents": [
+ "coordinator",
+ "research_agent"
+ ],
+ "tool_calls": [
+ {
+ "name": "research_agent",
+ "args": {
+ "request": "What is the capital of France?"
+ },
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+ "is_error": false,
+ "error_type": null
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+ }
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+ "output": 26
+ },
+ "notes": [
+ "AgentTool: coordinator calls research_agent as a tool",
+ "evidence lost model call agent names in this mode; agents taken from the same scenario in v2_default"
+ ]
+}
\ No newline at end of file
diff --git a/tests/fixtures/otlp/adk_py/v1_default_contrib/S5.json b/tests/fixtures/otlp/adk_py/v1_default_contrib/S5.json
new file mode 100644
index 00000000..c9a153fd
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+ "stringValue": "STOP"
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+ "attributes": [
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+}
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diff --git a/tests/fixtures/otlp/adk_py/v1_default_contrib/S5.truth.json b/tests/fixtures/otlp/adk_py/v1_default_contrib/S5.truth.json
new file mode 100644
index 00000000..1ab6db2a
--- /dev/null
+++ b/tests/fixtures/otlp/adk_py/v1_default_contrib/S5.truth.json
@@ -0,0 +1,56 @@
+{
+ "schema": "otel_core.truth/v1",
+ "fixture": "adk_py/v1_default_contrib/S5",
+ "source": "adk-python 2.10 recording, mode v1_default_contrib, scenario S5",
+ "content_captured": true,
+ "turns": [
+ {
+ "user_text": "Compare the weather in Paris and London.",
+ "final_text": "Paris is sunny at 21C; London is rainy at 12C.",
+ "intermediate_texts": [],
+ "agents": [
+ "weather_agent"
+ ],
+ "tool_calls": [
+ {
+ "name": "get_weather",
+ "args": {
+ "city": "Paris"
+ },
+ "result": {
+ "city": "Paris",
+ "forecast": "sunny",
+ "temp_c": 21
+ },
+ "is_error": false,
+ "error_type": null
+ },
+ {
+ "name": "get_weather",
+ "args": {
+ "city": "London"
+ },
+ "result": {
+ "city": "London",
+ "forecast": "rainy",
+ "temp_c": 12
+ },
+ "is_error": false,
+ "error_type": null
+ }
+ ],
+ "tokens": {
+ "input": 70,
+ "output": 23
+ }
+ }
+ ],
+ "tokens": {
+ "input": 70,
+ "output": 23
+ },
+ "notes": [
+ "parallel tool calls in one model response",
+ "evidence lost model call agent names in this mode; agents taken from the same scenario in v2_default"
+ ]
+}
\ No newline at end of file
diff --git a/tests/fixtures/otlp/adk_py/v1_default_contrib/S6a.json b/tests/fixtures/otlp/adk_py/v1_default_contrib/S6a.json
new file mode 100644
index 00000000..00bc1aac
--- /dev/null
+++ b/tests/fixtures/otlp/adk_py/v1_default_contrib/S6a.json
@@ -0,0 +1,679 @@
+{
+ "resourceSpans": [
+ {
+ "resource": {
+ "attributes": [
+ {
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+ "value": {
+ "stringValue": "python"
+ }
+ },
+ {
+ "key": "telemetry.sdk.name",
+ "value": {
+ "stringValue": "opentelemetry"
+ }
+ },
+ {
+ "key": "telemetry.sdk.version",
+ "value": {
+ "stringValue": "1.42.1"
+ }
+ },
+ {
+ "key": "service.name",
+ "value": {
+ "stringValue": "adk-empirical"
+ }
+ },
+ {
+ "key": "emp.mode",
+ "value": {
+ "stringValue": "v1_default_contrib"
+ }
+ }
+ ]
+ },
+ "scopeSpans": [
+ {
+ "scope": {
+ "name": "opentelemetry.instrumentation.google_genai",
+ "version": "0.7b1",
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+ "value": {
+ "stringValue": "google.genai"
+ }
+ },
+ {
+ "key": "gcp.client.repo",
+ "value": {
+ "stringValue": "googleapis/python-genai"
+ }
+ },
+ {
+ "key": "gcp.client.version",
+ "value": {
+ "stringValue": "2.25.0"
+ }
+ },
+ {
+ "key": "pypi.package.name",
+ "value": {
+ "stringValue": "opentelemetry-instrumentation-google-genai"
+ }
+ }
+ ]
+ },
+ "spans": [
+ {
+ "traceId": "a02d8e0e9011528baac7d7eb5fcfa31a",
+ "spanId": "47c07525de8a68c8",
+ "parentSpanId": "66e07265cd36d405",
+ "name": "generate_content gemini-2.5-flash",
+ "kind": 1,
+ "startTimeUnixNano": "1790607517156154516",
+ "endTimeUnixNano": "1790607517156907433",
+ "attributes": [
+ {
+ "key": "code.function.name",
+ "value": {
+ "stringValue": "google.genai.AsyncModels.generate_content"
+ }
+ },
+ {
+ "key": "gen_ai.request.model",
+ "value": {
+ "stringValue": "gemini-2.5-flash"
+ }
+ },
+ {
+ "key": "gen_ai.operation.name",
+ "value": {
+ "stringValue": "generate_content"
+ }
+ },
+ {
+ "key": "gen_ai.agent.name",
+ "value": {
+ "stringValue": "stock_agent"
+ }
+ },
+ {
+ "key": "gen_ai.conversation.id",
+ "value": {
+ "stringValue": "sess-S6a-v1_default_contrib"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.event_id",
+ "value": {
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+ }
+ },
+ {
+ "key": "gcp.vertex.agent.invocation_id",
+ "value": {
+ "stringValue": "e-3b8da6cc-a354-4601-8b06-7484da7a95d5"
+ }
+ },
+ {
+ "key": "gen_ai.system",
+ "value": {
+ "stringValue": "gemini"
+ }
+ },
+ {
+ "key": "gen_ai.usage.input_tokens",
+ "value": {
+ "intValue": "18"
+ }
+ },
+ {
+ "key": "gen_ai.usage.output_tokens",
+ "value": {
+ "intValue": "6"
+ }
+ },
+ {
+ "key": "gen_ai.response.finish_reasons",
+ "value": {
+ "arrayValue": {
+ "values": [
+ {
+ "stringValue": "stop"
+ }
+ ]
+ }
+ }
+ }
+ ],
+ "status": {},
+ "flags": 256
+ }
+ ],
+ "schemaUrl": "https://opentelemetry.io/schemas/1.30.0"
+ },
+ {
+ "scope": {
+ "name": "gcp.vertex.agent",
+ "version": "2.10.0"
+ },
+ "spans": [
+ {
+ "traceId": "a02d8e0e9011528baac7d7eb5fcfa31a",
+ "spanId": "72745666ad51680b",
+ "parentSpanId": "975c5c119f7f9eb9",
+ "name": "execute_tool get_stock_price",
+ "kind": 1,
+ "startTimeUnixNano": "1790607517157144328",
+ "endTimeUnixNano": "1790607517158452874",
+ "attributes": [
+ {
+ "key": "gen_ai.operation.name",
+ "value": {
+ "stringValue": "execute_tool"
+ }
+ },
+ {
+ "key": "gen_ai.tool.description",
+ "value": {
+ "stringValue": "Returns the stock price for a ticker."
+ }
+ },
+ {
+ "key": "gen_ai.tool.name",
+ "value": {
+ "stringValue": "get_stock_price"
+ }
+ },
+ {
+ "key": "gen_ai.tool.type",
+ "value": {
+ "stringValue": "FunctionTool"
+ }
+ },
+ {
+ "key": "gen_ai.agent.name",
+ "value": {
+ "stringValue": "stock_agent"
+ }
+ },
+ {
+ "key": "error.type",
+ "value": {
+ "stringValue": "ValueError"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.llm_request",
+ "value": {
+ "stringValue": "{}"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.llm_response",
+ "value": {
+ "stringValue": "{}"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.tool_call_args",
+ "value": {
+ "stringValue": "{\"ticker\": \"XYZ\"}"
+ }
+ },
+ {
+ "key": "gen_ai.tool.call.id",
+ "value": {
+ "stringValue": ""
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.tool_response",
+ "value": {
+ "stringValue": "{\"result\": \"\"}"
+ }
+ }
+ ],
+ "events": [
+ {
+ "timeUnixNano": "1790607517157907949",
+ "name": "exception",
+ "attributes": [
+ {
+ "key": "exception.type",
+ "value": {
+ "stringValue": "ValueError"
+ }
+ },
+ {
+ "key": "exception.message",
+ "value": {
+ "stringValue": "ticker not found: XYZ"
+ }
+ },
+ {
+ "key": "exception.stacktrace",
+ "value": {
+ "stringValue": "Traceback (most recent call last):\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/telemetry/_instrumentation.py\", line 601, in record_tool_execution\n yield tel_ctx\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_caller.py\", line 921, in _execute_single_prepared_call\n tel_ctx.function_response_event = await _run_with_trace()\n ^^^^^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_caller.py\", line 864, in _run_with_trace\n raise tool_error\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_caller.py\", line 851, in _run_with_trace\n function_response = await tool_runner()\n ^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_caller.py\", line 434, in _call_tool_async\n result: object = await tool.run_async(args=args, tool_context=tool_context)\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/tools/function_tool.py\", line 419, in run_async\n return await self._invoke_callable(self.func, args_to_call)\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/tools/function_tool.py\", line 460, in _invoke_callable\n return target(**args_to_call)\n File \"/app/gen_traces.py\", line 302, in get_stock_price\n raise ValueError(f\"ticker not found: {ticker}\")\nValueError: ticker not found: XYZ\n"
+ }
+ },
+ {
+ "key": "exception.escaped",
+ "value": {
+ "stringValue": "False"
+ }
+ }
+ ]
+ },
+ {
+ "timeUnixNano": "1790607517158447127",
+ "name": "exception",
+ "attributes": [
+ {
+ "key": "exception.type",
+ "value": {
+ "stringValue": "ValueError"
+ }
+ },
+ {
+ "key": "exception.message",
+ "value": {
+ "stringValue": "ticker not found: XYZ"
+ }
+ },
+ {
+ "key": "exception.stacktrace",
+ "value": {
+ "stringValue": "Traceback (most recent call last):\n File \"/app/.venv/lib/python3.13/site-packages/opentelemetry/trace/__init__.py\", line 608, in use_span\n yield span\n File \"/app/.venv/lib/python3.13/site-packages/opentelemetry/sdk/trace/__init__.py\", line 1177, in start_as_current_span\n yield span\n File \"/app/.venv/lib/python3.13/site-packages/opentelemetry/trace/__init__.py\", line 443, in start_as_current_span\n yield span\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/telemetry/_instrumentation.py\", line 601, in record_tool_execution\n yield tel_ctx\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_caller.py\", line 921, in _execute_single_prepared_call\n tel_ctx.function_response_event = await _run_with_trace()\n ^^^^^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_caller.py\", line 864, in _run_with_trace\n raise tool_error\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_caller.py\", line 851, in _run_with_trace\n function_response = await tool_runner()\n ^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_caller.py\", line 434, in _call_tool_async\n result: object = await tool.run_async(args=args, tool_context=tool_context)\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/tools/function_tool.py\", line 419, in run_async\n return await self._invoke_callable(self.func, args_to_call)\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/tools/function_tool.py\", line 460, in _invoke_callable\n return target(**args_to_call)\n File \"/app/gen_traces.py\", line 302, in get_stock_price\n raise ValueError(f\"ticker not found: {ticker}\")\nValueError: ticker not found: XYZ\n"
+ }
+ },
+ {
+ "key": "exception.escaped",
+ "value": {
+ "stringValue": "False"
+ }
+ }
+ ]
+ }
+ ],
+ "status": {
+ "message": "ValueError: ticker not found: XYZ",
+ "code": 2
+ },
+ "flags": 256
+ },
+ {
+ "traceId": "a02d8e0e9011528baac7d7eb5fcfa31a",
+ "spanId": "66e07265cd36d405",
+ "parentSpanId": "975c5c119f7f9eb9",
+ "name": "call_llm",
+ "kind": 1,
+ "startTimeUnixNano": "1790607517151488748",
+ "endTimeUnixNano": "1790607517158524634",
+ "attributes": [
+ {
+ "key": "gen_ai.system",
+ "value": {
+ "stringValue": "gcp.vertex.agent"
+ }
+ },
+ {
+ "key": "gen_ai.request.model",
+ "value": {
+ "stringValue": "gemini-2.5-flash"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.invocation_id",
+ "value": {
+ "stringValue": "e-3b8da6cc-a354-4601-8b06-7484da7a95d5"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.session_id",
+ "value": {
+ "stringValue": "sess-S6a-v1_default_contrib"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.event_id",
+ "value": {
+ "stringValue": "1fafd05d-2b9d-4c5b-9d69-ed2d1d89f241"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.llm_request",
+ "value": {
+ "stringValue": "{\"model\": \"gemini-2.5-flash\", \"config\": {\"http_options\": {}, \"system_instruction\": \"Answer stock questions using tools.\\n\\nYou are an agent. Your internal name is \\\"stock_agent\\\".\", \"tools\": [{\"function_declarations\": [{\"description\": \"Returns the stock price for a ticker.\", \"name\": \"get_stock_price\", \"parameters_json_schema\": {\"properties\": {\"ticker\": {\"title\": \"Ticker\", \"type\": \"string\"}}, \"required\": [\"ticker\"], \"title\": \"get_stock_priceParams\", \"type\": \"object\"}}]}]}, \"contents\": [{\"parts\": [{\"text\": \"What is the price of XYZ?\"}], \"role\": \"user\"}]}"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.llm_response",
+ "value": {
+ "stringValue": "{\"model_version\":\"gemini-2.5-flash-001\",\"content\":{\"parts\":[{\"function_call\":{\"args\":{\"ticker\":\"XYZ\"},\"name\":\"get_stock_price\"}}],\"role\":\"model\"},\"finish_reason\":\"STOP\",\"usage_metadata\":{\"candidates_token_count\":6,\"prompt_token_count\":18,\"total_token_count\":24}}"
+ }
+ },
+ {
+ "key": "gen_ai.usage.input_tokens",
+ "value": {
+ "intValue": "18"
+ }
+ },
+ {
+ "key": "gen_ai.usage.output_tokens",
+ "value": {
+ "intValue": "6"
+ }
+ },
+ {
+ "key": "gen_ai.response.finish_reasons",
+ "value": {
+ "arrayValue": {
+ "values": [
+ {
+ "stringValue": "stop"
+ }
+ ]
+ }
+ }
+ }
+ ],
+ "status": {},
+ "flags": 256
+ },
+ {
+ "traceId": "a02d8e0e9011528baac7d7eb5fcfa31a",
+ "spanId": "975c5c119f7f9eb9",
+ "parentSpanId": "1f59f37bdb8efe13",
+ "name": "invoke_agent stock_agent",
+ "kind": 1,
+ "startTimeUnixNano": "1790607517150354459",
+ "endTimeUnixNano": "1790607517159717606",
+ "attributes": [
+ {
+ "key": "gen_ai.operation.name",
+ "value": {
+ "stringValue": "invoke_agent"
+ }
+ },
+ {
+ "key": "gen_ai.agent.description",
+ "value": {
+ "stringValue": ""
+ }
+ },
+ {
+ "key": "gen_ai.agent.name",
+ "value": {
+ "stringValue": "stock_agent"
+ }
+ },
+ {
+ "key": "gen_ai.conversation.id",
+ "value": {
+ "stringValue": "sess-S6a-v1_default_contrib"
+ }
+ }
+ ],
+ "events": [
+ {
+ "timeUnixNano": "1790607517159713399",
+ "name": "exception",
+ "attributes": [
+ {
+ "key": "exception.type",
+ "value": {
+ "stringValue": "ValueError"
+ }
+ },
+ {
+ "key": "exception.message",
+ "value": {
+ "stringValue": "ticker not found: XYZ"
+ }
+ },
+ {
+ "key": "exception.stacktrace",
+ "value": {
+ "stringValue": "Traceback (most recent call last):\n File \"/app/.venv/lib/python3.13/site-packages/opentelemetry/trace/__init__.py\", line 608, in use_span\n yield span\n File \"/app/.venv/lib/python3.13/site-packages/opentelemetry/sdk/trace/__init__.py\", line 1177, in start_as_current_span\n yield span\n File \"/app/.venv/lib/python3.13/site-packages/opentelemetry/trace/__init__.py\", line 443, in start_as_current_span\n yield span\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/telemetry/_instrumentation.py\", line 561, in record_agent_invocation\n yield scope\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/agents/base_agent.py\", line 392, in _run\n async for event in agen:\n yield event\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/agents/llm_agent.py\", line 632, in _run_async_impl\n async for event in agen:\n ...<8 lines>...\n should_pause = True\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/base_llm_flow.py\", line 359, in run_async\n async for event in agen:\n last_event = event\n yield event\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/base_llm_flow.py\", line 455, in _run_one_step_async\n async for event in agen:\n ...<5 lines>...\n yield event\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/base_llm_flow.py\", line 556, in _postprocess_async\n async for event in agen:\n yield event\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/base_llm_flow.py\", line 610, in _postprocess_handle_function_calls_async\n async for event in agen:\n yield event\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/core/_function_call_postprocessor.py\", line 68, in postprocess_handle_function_calls_async\n if function_response_event := await functions.handle_function_calls_async(\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n invocation_context, function_call_event, llm_request.tools_dict\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n ):\n ^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_functions.py\", line 277, in handle_function_calls_async\n return await functions.handle_function_call_list_async(\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n ...<5 lines>...\n )\n ^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_functions.py\", line 257, in handle_function_call_list_async\n return await _batch_tool_executor.handle_function_call_list_async(\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n ...<5 lines>...\n )\n ^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_batch_executor.py\", line 405, in handle_function_call_list_async\n return await _execute_prepared_function_calls_async(\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n invocation_context, prepared_calls, agent\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n )\n ^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_batch_executor.py\", line 326, in _execute_prepared_function_calls_async\n maybe_function_response_events = await _gather_or_cancel(tasks)\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_batch_executor.py\", line 192, in _gather_or_cancel\n return list(await asyncio.gather(*tasks))\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_caller.py\", line 938, in _execute_single_prepared_call_async\n return await _execute_single_prepared_call(\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n ...<8 lines>...\n )\n ^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_caller.py\", line 921, in _execute_single_prepared_call\n tel_ctx.function_response_event = await _run_with_trace()\n ^^^^^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_caller.py\", line 864, in _run_with_trace\n raise tool_error\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_caller.py\", line 851, in _run_with_trace\n function_response = await tool_runner()\n ^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_caller.py\", line 434, in _call_tool_async\n result: object = await tool.run_async(args=args, tool_context=tool_context)\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/tools/function_tool.py\", line 419, in run_async\n return await self._invoke_callable(self.func, args_to_call)\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/tools/function_tool.py\", line 460, in _invoke_callable\n return target(**args_to_call)\n File \"/app/gen_traces.py\", line 302, in get_stock_price\n raise ValueError(f\"ticker not found: {ticker}\")\nValueError: ticker not found: XYZ\n"
+ }
+ },
+ {
+ "key": "exception.escaped",
+ "value": {
+ "stringValue": "False"
+ }
+ }
+ ]
+ }
+ ],
+ "status": {
+ "message": "ValueError: ticker not found: XYZ",
+ "code": 2
+ },
+ "flags": 256
+ },
+ {
+ "traceId": "a02d8e0e9011528baac7d7eb5fcfa31a",
+ "spanId": "1f59f37bdb8efe13",
+ "name": "invocation",
+ "kind": 1,
+ "startTimeUnixNano": "1790607517149918069",
+ "endTimeUnixNano": "1790607517164413985",
+ "events": [
+ {
+ "timeUnixNano": "1790607517164409862",
+ "name": "exception",
+ "attributes": [
+ {
+ "key": "exception.type",
+ "value": {
+ "stringValue": "ValueError"
+ }
+ },
+ {
+ "key": "exception.message",
+ "value": {
+ "stringValue": "ticker not found: XYZ"
+ }
+ },
+ {
+ "key": "exception.stacktrace",
+ "value": {
+ "stringValue": "Traceback (most recent call last):\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/workflow/_node_runner_utils.py\", line 241, in _drive_root_node\n await root_ctx._run_node_internal( # pylint: disable=protected-access\n ...<3 lines>...\n )\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/agents/context.py\", line 515, in _run_node_internal\n return await _dynamic_node_scheduler.run_node_internal(\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n ...<12 lines>...\n )\n ^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/workflow/_dynamic_node_scheduler.py\", line 738, in run_node_internal\n raise DynamicNodeFailError(\n ...<3 lines>...\n )\ngoogle.adk.workflow._errors.DynamicNodeFailError: Dynamic node stock_agent failed\n\nDuring handling of the above exception, another exception occurred:\n\nTraceback (most recent call last):\n File \"/app/.venv/lib/python3.13/site-packages/opentelemetry/trace/__init__.py\", line 608, in use_span\n yield span\n File \"/app/.venv/lib/python3.13/site-packages/opentelemetry/sdk/trace/__init__.py\", line 1177, in start_as_current_span\n yield span\n File \"/app/.venv/lib/python3.13/site-packages/opentelemetry/trace/__init__.py\", line 443, in start_as_current_span\n yield span\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/telemetry/_instrumentation.py\", line 159, in record_invocation\n yield\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/workflow/_node_runner_utils.py\", line 274, in _run\n await runner._cleanup_root_task(task, runner.agent.name) # pylint: disable=protected-access\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/runners.py\", line 812, in _cleanup_root_task\n await task\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/workflow/_node_runner_utils.py\", line 250, in _drive_root_node\n raise e.error\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/workflow/_node_runner.py\", line 138, in run\n await self._execute_node(ctx, node_input)\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/workflow/_node_runner.py\", line 304, in _execute_node\n await self._run_node_loop(ctx, node_input)\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/workflow/_node_runner.py\", line 318, in _run_node_loop\n async for event in agen:\n self._track_event_in_context(event, ctx)\n await self._enqueue_event(event, ctx)\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/workflow/_base_node.py\", line 190, in run\n async for item in agen:\n ...<12 lines>...\n yield Event(output=validated)\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/agents/llm_agent.py\", line 683, in _run_impl\n async for event in agen:\n ...<4 lines>...\n yield event\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/workflow/_llm_agent_wrapper.py\", line 482, in run_llm_agent_as_node\n async for event in run_iter:\n ...<31 lines>...\n break\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/agents/base_agent.py\", line 328, in run_async\n async for event in agen:\n yield event\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/agents/base_agent.py\", line 422, in _run_with_lifecycle\n async for event in agen:\n yield event\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/utils/_runner_utils.py\", line 42, in _with_caller_context\n async for item in a:\n ...<4 lines>...\n context.detach(token)\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/agents/base_agent.py\", line 392, in _run\n async for event in agen:\n yield event\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/agents/llm_agent.py\", line 632, in _run_async_impl\n async for event in agen:\n ...<8 lines>...\n should_pause = True\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/base_llm_flow.py\", line 359, in run_async\n async for event in agen:\n last_event = event\n yield event\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/base_llm_flow.py\", line 455, in _run_one_step_async\n async for event in agen:\n ...<5 lines>...\n yield event\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/base_llm_flow.py\", line 556, in _postprocess_async\n async for event in agen:\n yield event\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/base_llm_flow.py\", line 610, in _postprocess_handle_function_calls_async\n async for event in agen:\n yield event\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/core/_function_call_postprocessor.py\", line 68, in postprocess_handle_function_calls_async\n if function_response_event := await functions.handle_function_calls_async(\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n invocation_context, function_call_event, llm_request.tools_dict\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n ):\n ^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_functions.py\", line 277, in handle_function_calls_async\n return await functions.handle_function_call_list_async(\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n ...<5 lines>...\n )\n ^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_functions.py\", line 257, in handle_function_call_list_async\n return await _batch_tool_executor.handle_function_call_list_async(\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n ...<5 lines>...\n )\n ^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_batch_executor.py\", line 405, in handle_function_call_list_async\n return await _execute_prepared_function_calls_async(\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n invocation_context, prepared_calls, agent\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n )\n ^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_batch_executor.py\", line 326, in _execute_prepared_function_calls_async\n maybe_function_response_events = await _gather_or_cancel(tasks)\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_batch_executor.py\", line 192, in _gather_or_cancel\n return list(await asyncio.gather(*tasks))\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_caller.py\", line 938, in _execute_single_prepared_call_async\n return await _execute_single_prepared_call(\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n ...<8 lines>...\n )\n ^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_caller.py\", line 921, in _execute_single_prepared_call\n tel_ctx.function_response_event = await _run_with_trace()\n ^^^^^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_caller.py\", line 864, in _run_with_trace\n raise tool_error\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_caller.py\", line 851, in _run_with_trace\n function_response = await tool_runner()\n ^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/tools/_caller.py\", line 434, in _call_tool_async\n result: object = await tool.run_async(args=args, tool_context=tool_context)\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/tools/function_tool.py\", line 419, in run_async\n return await self._invoke_callable(self.func, args_to_call)\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n File \"/app/.venv/lib/python3.13/site-packages/google/adk/tools/function_tool.py\", line 460, in _invoke_callable\n return target(**args_to_call)\n File \"/app/gen_traces.py\", line 302, in get_stock_price\n raise ValueError(f\"ticker not found: {ticker}\")\nValueError: ticker not found: XYZ\n"
+ }
+ },
+ {
+ "key": "exception.escaped",
+ "value": {
+ "stringValue": "False"
+ }
+ }
+ ]
+ }
+ ],
+ "status": {
+ "message": "ValueError: ticker not found: XYZ",
+ "code": 2
+ },
+ "flags": 256
+ }
+ ],
+ "schemaUrl": "https://opentelemetry.io/schemas/1.36.0"
+ }
+ ]
+ }
+ ],
+ "resourceLogs": [
+ {
+ "resource": {
+ "attributes": [
+ {
+ "key": "telemetry.sdk.language",
+ "value": {
+ "stringValue": "python"
+ }
+ },
+ {
+ "key": "telemetry.sdk.name",
+ "value": {
+ "stringValue": "opentelemetry"
+ }
+ },
+ {
+ "key": "telemetry.sdk.version",
+ "value": {
+ "stringValue": "1.42.1"
+ }
+ },
+ {
+ "key": "service.name",
+ "value": {
+ "stringValue": "adk-empirical"
+ }
+ },
+ {
+ "key": "emp.mode",
+ "value": {
+ "stringValue": "v1_default_contrib"
+ }
+ }
+ ]
+ },
+ "scopeLogs": [
+ {
+ "scope": {
+ "name": "opentelemetry.instrumentation.google_genai",
+ "version": "0.7b1",
+ "attributes": [
+ {
+ "key": "gcp.client.name",
+ "value": {
+ "stringValue": "google.genai"
+ }
+ },
+ {
+ "key": "gcp.client.repo",
+ "value": {
+ "stringValue": "googleapis/python-genai"
+ }
+ },
+ {
+ "key": "gcp.client.version",
+ "value": {
+ "stringValue": "2.25.0"
+ }
+ },
+ {
+ "key": "pypi.package.name",
+ "value": {
+ "stringValue": "opentelemetry-instrumentation-google-genai"
+ }
+ }
+ ]
+ },
+ "logRecords": [
+ {
+ "body": {
+ "kvlistValue": {
+ "values": [
+ {
+ "key": "content",
+ "value": {
+ "stringValue": ""
+ }
+ }
+ ]
+ }
+ },
+ "attributes": [
+ {
+ "key": "gen_ai.system",
+ "value": {
+ "stringValue": "gemini"
+ }
+ }
+ ],
+ "flags": 3,
+ "traceId": "a02d8e0e9011528baac7d7eb5fcfa31a",
+ "spanId": "47c07525de8a68c8",
+ "observedTimeUnixNano": "1790607517156254722",
+ "eventName": "gen_ai.system.message"
+ },
+ {
+ "body": {
+ "kvlistValue": {
+ "values": [
+ {
+ "key": "content",
+ "value": {
+ "stringValue": ""
+ }
+ }
+ ]
+ }
+ },
+ "attributes": [
+ {
+ "key": "gen_ai.system",
+ "value": {
+ "stringValue": "gemini"
+ }
+ }
+ ],
+ "flags": 3,
+ "traceId": "a02d8e0e9011528baac7d7eb5fcfa31a",
+ "spanId": "47c07525de8a68c8",
+ "observedTimeUnixNano": "1790607517156269840",
+ "eventName": "gen_ai.user.message"
+ },
+ {
+ "body": {
+ "kvlistValue": {
+ "values": [
+ {
+ "key": "index",
+ "value": {
+ "intValue": "0"
+ }
+ },
+ {
+ "key": "content",
+ "value": {
+ "stringValue": ""
+ }
+ },
+ {
+ "key": "finish_reason",
+ "value": {
+ "stringValue": "STOP"
+ }
+ }
+ ]
+ }
+ },
+ "attributes": [
+ {
+ "key": "gen_ai.system",
+ "value": {
+ "stringValue": "gemini"
+ }
+ }
+ ],
+ "flags": 3,
+ "traceId": "a02d8e0e9011528baac7d7eb5fcfa31a",
+ "spanId": "47c07525de8a68c8",
+ "observedTimeUnixNano": "1790607517156888442",
+ "eventName": "gen_ai.choice"
+ }
+ ],
+ "schemaUrl": "https://opentelemetry.io/schemas/1.30.0"
+ }
+ ]
+ }
+ ]
+}
\ No newline at end of file
diff --git a/tests/fixtures/otlp/adk_py/v1_default_contrib/S6a.truth.json b/tests/fixtures/otlp/adk_py/v1_default_contrib/S6a.truth.json
new file mode 100644
index 00000000..173f55a7
--- /dev/null
+++ b/tests/fixtures/otlp/adk_py/v1_default_contrib/S6a.truth.json
@@ -0,0 +1,40 @@
+{
+ "schema": "otel_core.truth/v1",
+ "fixture": "adk_py/v1_default_contrib/S6a",
+ "source": "adk-python 2.10 recording, mode v1_default_contrib, scenario S6a",
+ "content_captured": true,
+ "turns": [
+ {
+ "user_text": "What is the price of XYZ?",
+ "final_text": null,
+ "intermediate_texts": [],
+ "agents": [
+ "stock_agent"
+ ],
+ "tool_calls": [
+ {
+ "name": "get_stock_price",
+ "args": {
+ "ticker": "XYZ"
+ },
+ "result": null,
+ "is_error": true,
+ "error_type": "ValueError"
+ }
+ ],
+ "tokens": {
+ "input": 18,
+ "output": 6
+ }
+ }
+ ],
+ "tokens": {
+ "input": 18,
+ "output": 6
+ },
+ "notes": [
+ "tool raises, no error callback (run aborts)",
+ "run aborted: ValueError: ticker not found: XYZ",
+ "evidence lost model call agent names in this mode; agents taken from the same scenario in v2_default"
+ ]
+}
\ No newline at end of file
diff --git a/tests/fixtures/otlp/adk_py/v1_default_contrib/S6b.json b/tests/fixtures/otlp/adk_py/v1_default_contrib/S6b.json
new file mode 100644
index 00000000..43d0c1a4
--- /dev/null
+++ b/tests/fixtures/otlp/adk_py/v1_default_contrib/S6b.json
@@ -0,0 +1,864 @@
+{
+ "resourceSpans": [
+ {
+ "resource": {
+ "attributes": [
+ {
+ "key": "telemetry.sdk.language",
+ "value": {
+ "stringValue": "python"
+ }
+ },
+ {
+ "key": "telemetry.sdk.name",
+ "value": {
+ "stringValue": "opentelemetry"
+ }
+ },
+ {
+ "key": "telemetry.sdk.version",
+ "value": {
+ "stringValue": "1.42.1"
+ }
+ },
+ {
+ "key": "service.name",
+ "value": {
+ "stringValue": "adk-empirical"
+ }
+ },
+ {
+ "key": "emp.mode",
+ "value": {
+ "stringValue": "v1_default_contrib"
+ }
+ }
+ ]
+ },
+ "scopeSpans": [
+ {
+ "scope": {
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diff --git a/tests/fixtures/otlp/adk_py/v1_default_contrib/S6b.truth.json b/tests/fixtures/otlp/adk_py/v1_default_contrib/S6b.truth.json
new file mode 100644
index 00000000..0592263b
--- /dev/null
+++ b/tests/fixtures/otlp/adk_py/v1_default_contrib/S6b.truth.json
@@ -0,0 +1,41 @@
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+ "final_text": "Sorry, I could not find a stock with ticker XYZ.",
+ "intermediate_texts": [],
+ "agents": [
+ "stock_agent"
+ ],
+ "tool_calls": [
+ {
+ "name": "get_stock_price",
+ "args": {
+ "ticker": "XYZ"
+ },
+ "result": {
+ "error": "ValueError: ticker not found: XYZ"
+ },
+ "is_error": true,
+ "error_type": "TOOL_ERROR"
+ }
+ ],
+ "tokens": {
+ "input": 58,
+ "output": 18
+ }
+ }
+ ],
+ "tokens": {
+ "input": 58,
+ "output": 18
+ },
+ "notes": [
+ "tool raises, on_tool_error_callback turns it into an error response",
+ "evidence lost model call agent names in this mode; agents taken from the same scenario in v2_default"
+ ]
+}
\ No newline at end of file
diff --git a/tests/fixtures/otlp/adk_py/v1_event_stable/S1.json b/tests/fixtures/otlp/adk_py/v1_event_stable/S1.json
new file mode 100644
index 00000000..ae10a4a7
--- /dev/null
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+}
\ No newline at end of file
diff --git a/tests/fixtures/otlp/adk_py/v1_event_stable/S1.truth.json b/tests/fixtures/otlp/adk_py/v1_event_stable/S1.truth.json
new file mode 100644
index 00000000..8272813f
--- /dev/null
+++ b/tests/fixtures/otlp/adk_py/v1_event_stable/S1.truth.json
@@ -0,0 +1,28 @@
+{
+ "schema": "otel_core.truth/v1",
+ "fixture": "adk_py/v1_event_stable/S1",
+ "source": "adk-python 2.10 recording, mode v1_event_stable, scenario S1",
+ "content_captured": true,
+ "turns": [
+ {
+ "user_text": "Hello, who are you?",
+ "final_text": "I am a helpful assistant built with ADK.",
+ "intermediate_texts": [],
+ "agents": [
+ "assistant"
+ ],
+ "tool_calls": [],
+ "tokens": {
+ "input": 12,
+ "output": 9
+ }
+ }
+ ],
+ "tokens": {
+ "input": 12,
+ "output": 9
+ },
+ "notes": [
+ "single turn, no tools"
+ ]
+}
\ No newline at end of file
diff --git a/tests/fixtures/otlp/adk_py/v1_event_stable/S2.json b/tests/fixtures/otlp/adk_py/v1_event_stable/S2.json
new file mode 100644
index 00000000..2df9cd90
--- /dev/null
+++ b/tests/fixtures/otlp/adk_py/v1_event_stable/S2.json
@@ -0,0 +1,2693 @@
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+ "attributes": [
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+ "value": {
+ "stringValue": "generate_content"
+ }
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+ "key": "gen_ai.request.model",
+ "value": {
+ "stringValue": "gemini-2.5-flash"
+ }
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+ {
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+ "stringValue": "weather_agent"
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+ {
+ "key": "gen_ai.conversation.id",
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+ "stringValue": "sess-S2-v1_event_stable"
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+ "value": {
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+ {
+ "key": "gen_ai.response.finish_reasons",
+ "value": {
+ "arrayValue": {
+ "values": [
+ {
+ "stringValue": "stop"
+ }
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+ }
+ },
+ {
+ "key": "gen_ai.usage.input_tokens",
+ "value": {
+ "intValue": "20"
+ }
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+ "value": {
+ "intValue": "5"
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+ "flags": 256
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+ "spanId": "3396a1e17d79fc34",
+ "parentSpanId": "810ee2a6c3fff4ab",
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+ "endTimeUnixNano": "1790607509831211183",
+ "attributes": [
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+ "value": {
+ "stringValue": "execute_tool"
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+ "key": "gen_ai.tool.description",
+ "value": {
+ "stringValue": "Returns the current weather for a city."
+ }
+ },
+ {
+ "key": "gen_ai.tool.name",
+ "value": {
+ "stringValue": "get_weather"
+ }
+ },
+ {
+ "key": "gen_ai.tool.type",
+ "value": {
+ "stringValue": "FunctionTool"
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+ {
+ "key": "gen_ai.agent.name",
+ "value": {
+ "stringValue": "weather_agent"
+ }
+ },
+ {
+ "key": "gcp.vertex.agent.llm_request",
+ "value": {
+ "stringValue": "{}"
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+ {
+ "key": "gcp.vertex.agent.llm_response",
+ "value": {
+ "stringValue": "{}"
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+ "key": "gcp.vertex.agent.tool_call_args",
+ "value": {
+ "stringValue": "{\"city\": \"Paris\"}"
+ }
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+ "key": "gen_ai.tool.call.id",
+ "value": {
+ "stringValue": "adk-eccec18d-110b-4035-a8ed-59d7dc7e135f"
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+ {
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+ "key": "gcp.vertex.agent.tool_response",
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+ ],
+ "status": {},
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+ "attributes": [
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+ "value": {
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+ {
+ "key": "gcp.vertex.agent.session_id",
+ "value": {
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+ },
+ {
+ "key": "gcp.vertex.agent.event_id",
+ "value": {
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+ }
+ },
+ {
+ "key": "gcp.vertex.agent.llm_request",
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new file mode 100644
index 00000000..525c1232
--- /dev/null
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\ No newline at end of file
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diff --git a/tests/fixtures/otlp/adk_py/v1_event_stable/S3.truth.json b/tests/fixtures/otlp/adk_py/v1_event_stable/S3.truth.json
new file mode 100644
index 00000000..f47662a3
--- /dev/null
+++ b/tests/fixtures/otlp/adk_py/v1_event_stable/S3.truth.json
@@ -0,0 +1,68 @@
+{
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+ "output": 26
+ },
+ "notes": [
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+ ]
+}
\ No newline at end of file
diff --git a/tests/fixtures/otlp/adk_py/v1_event_stable/S4a.json b/tests/fixtures/otlp/adk_py/v1_event_stable/S4a.json
new file mode 100644
index 00000000..bf796eb7
--- /dev/null
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