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fix(gateway): bounded fail-open evidence assembly + PM decision transient-failure bypass

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Evidence-assembly git legs (diff, changed-files, branch fetch, advisory
conventions run) ran unbounded inside claim_review / claim_doc_task /
claim_gate_review / evidence() / i_am_done's envelope build, so a slow
clone turned the whole verb into a silent 120s FlowVerbTimeout 504.
Each leg now runs through run_bounded_leg under a shared LegBudget
(evidence_assembly_timeout_seconds, 45s total): a timed-out leg — both
asyncio TimeoutError and git's own GitTimeoutError — degrades into an
evidence_gaps note on the envelope instead of hanging the verb, while
non-timeout git errors still propagate. The advisory conventions run
gets an inner-only timeout (conventions_validator_advisory_timeout_
seconds, 30s) threaded down to the subprocess so it is never orphaned
by an outer cancel; the fail-closed i_am_done/pr_pass conventions
gates keep their hardcoded 120s.

_ensure_pm_decision now reports a PmDecisionOutcome: a transient DB
failure recording the PM's decision journal (e.g. lock timeout under
load) no longer launders into a journal:decision gate rejection that
escalates and BLOCKS the task — the verb's own rationale satisfies the
gate with a structured warning, across all seven PM verbs.

Also: repo-wide ruff realignment to the lockfile-pinned ruff (8
format-only diffs, 14 UP038 isinstance conversions) that a transiently
newer venv ruff had masked.

Gate: 15474 passed, 459 skipped; ruff/mypy/xenon/vulture/bandit/
pip-audit/deptry/import-linter/foundation-check all green.
This commit is contained in:
Renn F
2026-07-31 13:56:19 +02:00
parent ef8849b0cd
commit ce4d02b3c2
41 changed files with 2160 additions and 138 deletions
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tests/unit/gateway/test_conventions_gate_i_am_done.py
+15
View File
@@ -109,3 +109,18 @@ async def test_gate_records_findings_even_when_blocking(
env = await c._conventions_gate(_ctx())
assert env is not None # still blocks
assert recorded and recorded[0] is _BLOCK_RESULT
@pytest.mark.asyncio
async def test_gate_never_overrides_the_fail_closed_timeout(
monkeypatch: pytest.MonkeyPatch,
) -> None:
"""i_am_done's conventions gate is fail-closed and must keep the
validator's hardcoded 120s cap — unlike claim_review's advisory path, it
must never pass a ``timeout`` override down to ``conventions_check_for_task``."""
monkeypatch.setattr(settings, "conventions_enabled", True)
c = _make_choreographer(check_result={"findings": [], "could_not_run": False})
await c._conventions_gate(_ctx())
check = c.git.conventions_check_for_task
check.assert_awaited_once()
assert "timeout" not in check.await_args.kwargs