Add proto2mcp project - #16052
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brucearctor wants to merge 1 commit into
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Add proto2mcp project#16052brucearctor wants to merge 1 commit into
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proto2mcp generates MCP (Model Context Protocol) tool servers from protobuf service definitions. 4 fuzz targets cover security-sensitive parsing: error message sanitization, UTF-8 truncation, protojson unmarshal, and JSON key extraction.
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DavidKorczynski
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DavidKorczynski
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Thanks @brucearctor -- I don't think the project is mature enough for OSS-Fuzz. We target projects that already have a wide user base.
I suggest taking a look at ClusterFuzzLite : https://github.com/google/clusterfuzzlite
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New Project: proto2mcp
Project URL: https://github.com/protocgen/proto2mcp
Language: Go
Contact: brucearctor@users.noreply.github.com
What is proto2mcp?
A protoc plugin that generates type-safe MCP tool servers from protobuf service definitions. Used to bridge LLM agents with existing gRPC/ConnectRPC backends.
Fuzz Targets (4)
FuzzSanitizeErrorMessageFuzzTruncateUTF8FuzzUnmarshalToolInputFuzzResourceKeyExtractionWhy fuzz?
proto2mcp sits between untrusted LLM agent input and backend services. The fuzz targets cover the exact parsing boundary where malformed input enters the system. Fuzzing already found one bug:
truncateUTF8produced invalid UTF-8 from lone lead bytes (fixed in v0.12.3).Build verification
Tested locally with: