# Acceptance: executor-v2-output-contract

## Implementation Result

Completed stage one of Executor Structured Output V2.

- Executor prompt now emits `executor_evidence_v2`.
- Executor output no longer includes `diagnosis_summary` or `user_facing_answer`.
- ChatService PASS path renders V2 structured output into readable Chinese.
- VerifierInputHook remains parse-only and accepts V2 output without final-expression fields.

## Static Verification

- `cmd /c openspec validate executor-v2-output-contract`
  - Result: passed.
  - Coverage: OpenSpec syntax and change validity.

## Script Verification

- `mvn "-Dtest=VerifierInputHookTest,ChatServiceSequentialAgentTest" test`
  - Result: passed.
  - Coverage: VerifierInputHook V2 parsing; ChatService PASS rendering for V2; existing sequential workflow tests.

## Browser / Manual Verification

Not run. This stage changes backend prompt/runtime contract and unit-level behavior only.

## Unverified

- Full live application run with a real LLM.
- MySQL trace inspection after a real chat session.

Reason: Stage one is covered by focused unit tests; live verification is more useful after Gatekeeper and Composer phases.

## Remaining Work

- Phase two: Gatekeeper in `VerifierInputHook`.
- Phase three: Verifier V2 `claim_checks`.
- Phase four: Composer.
- Phase five: eval fixtures and full audit closure.