feat(agent): add composer final answer

2026-07-08 09:51:07 +08:00
parent a5b4502c72
commit 6015bcbf6f
20 changed files with 909 additions and 316 deletions
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+# Acceptance
+
+## Implementation Result
+
+Implemented stage four of Executor Structured Output V2:
+
+- Added `chat_composer` prompt and Agent.
+- Final answers for PASS, LOW_CONFID, and REJECT now use Composer when Verifier decision is valid.
+- Composer input is filtered from Verifier decision and Executor structured output.
+- Unsupported, external-unknown, and contradicted claims are excluded from confirmed final-answer material.
+- REJECT Composer input has `allowed_hypotheses=[]`.
+- Malformed Composer output uses deterministic safe fallback.
+- Fallback does not expose raw Composer JSON, raw Executor JSON, or Executor `user_facing_answer`.
+- `composer_output` is persisted in verifier audit.
+
+## Static Verification
+
+- Reviewed implementation diff for stage-four scope.
+- `cmd /c openspec validate executor-composer-final-answer` passed.
+- `cmd /c openspec validate --specs` passed before archive.
+
+## Script Verification
+
+Passed:
+
+```powershell
+mvn "-Dtest=ChatServiceSequentialAgentTest" test
+mvn "-Dtest=ExecutorGatekeeperServiceTest,VerifierInputHookTest,ChatServiceSequentialAgentTest" test
+```
+
+Coverage:
+
+- Composer prompt loading and invocation.
+- valid Composer output as final answer source.
+- malformed Composer output fallback.
+- PASS no raw Executor JSON leakage.
+- LOW_CONFID separation of confirmed material, possible directions, and gaps.
+- REJECT safe output without raw Executor answer.
+- Gatekeeper and Verifier stage compatibility.
+
+## Browser / Manual Verification
+
+Not run. This stage changes backend prompt, routing, parser, audit, and tests only.
+
+## OpenSpec Archive Status
+
+Archived:
+
+```text
+openspec/changes/archive/2026-07-08-executor-composer-final-answer
+```
+
+## Remaining Risks
+
+- Stage five still needs broader eval fixture coverage for full evidence-attribution regressions.
+- Composer prompt quality can be improved after real run traces are collected.
+- Existing Maven warnings about duplicate test dependency and Lombok builder defaults remain outside this stage.