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Require posture on strand creation #544

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Require posture on strand creation #544

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1eacd38
Fix: require posture on strand creation
flyingrobots Jun 13, 2026
03a8f01
Fix: reject non-shared strand settlement
flyingrobots Jun 14, 2026
2164cc4
Fix: bind session posture derivation
flyingrobots Jun 14, 2026
dea5381
Fix: preserve settlement shell posture
flyingrobots Jun 14, 2026
334648c
Fix: update warp-wasm posture test fixtures
flyingrobots Jun 14, 2026
0c7ca74
Fix: map non-shared settlement ABI errors
flyingrobots Jun 14, 2026
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16 changes: 16 additions & 0 deletions CHANGELOG.md
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,12 @@

### Added

- `warp-core` strand creation now carries explicit `RetentionPosture` through
`ForkStrandRequest`, `ForkStrandReceipt`, and `Strand`. Session-default and
debugger fork constructors choose posture policy explicitly, session-default
work always records `PostureDerivation::SessionDefault`, debugger forks never
silently become `Shared`, and `StrandRegistry` rejects incoherent retained
posture such as `Shared` without an admission scope.
- `warp-core` import admission receipts now bind local source-shared import
admission to an explicit imported artifact identity. A receipt minted for one
imported artifact cannot admit another import into a local shared admission
Expand Down Expand Up @@ -545,6 +551,13 @@ Applied, Rejected, Obstructed}` with receipt evidence and typed contract

### Changed

- `warp-core` settlement planning now rejects non-`Shared` strands before
producing import candidates. Author-only/debugger strand suffixes can remain
real causal work, but they cannot enter base shared history without an
explicit shared admission posture.
- `warp-core` settlement plural artifacts and retained braid shells now carry
the source strand posture instead of hard-coding author-only posture for
shared settlement records.
- Local determinism tooling now fails closed around
`scripts/check-warp-core-serialization-boundaries.sh`. The serialization
boundary guard is mandatory, runs through `bash` rather than executable mode,
Expand Down Expand Up @@ -617,6 +630,9 @@ Applied, Rejected, Obstructed}` with receipt evidence and typed contract

### Fixed

- `warp-wasm` settlement publication now maps non-`Shared` strand admission
rejection to the stable `INVALID_STRAND` ABI error code instead of
collapsing the lawful posture denial into `ENGINE_ERROR`.
- `echo-file-aperture` now normalizes `HostFileSnapshot` material at the
aperture boundary so caller-forged snapshot metadata or fingerprints cannot
bind a basis, observation receipt, or materialization verification to bytes
Expand Down
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