# Task 5 self-review

- Verdict: pass
- Scope: calculate-and-save API, policy version validation, normalized request fingerprint and idempotent replay.
- Evidence: `SalaryCalculationEndToEndIntegrationTest` covers success, replay, same-key conflict, stale policy and invalid override. W3 suite 6/6 passed.
- Contract check: no history on version conflict; replay returns same history; structured 9805 data includes latest version/date.
- Blockers: none.