{
  "feature_id": "F-003",
  "agent": "qa",
  "verdict": "APPROVED",
  "summary": "All 5 acceptance criteria verified with fresh live probes and full suites.",
  "traceability": [
    {
      "criterion": "AC1: every response carries request_id",
      "test": "live curl: GET /health (200) and GET /missing (404) both returned x-request-id UUID headers",
      "result": "PASS"
    },
    {
      "criterion": "AC2: every request log line carries the same request_id",
      "test": "grep of server JSON logs: each live request_id appears exactly once, in its 'request completed' line",
      "result": "PASS"
    },
    {
      "criterion": "AC3: invalid request -> stable error envelope shape",
      "test": "live 404 and malformed-JSON 400 bodies share { error: { statusCode, code, message }, requestId }; schema-invalid case covered by unit test (VALIDATION_ERROR + field details)",
      "result": "PASS"
    },
    {
      "criterion": "AC4: internal stack traces never leak",
      "test": "live bodies contain zero occurrences of 'stack'; unit test proves 500 handler hides thrown message and stack while logging them server-side",
      "result": "PASS"
    },
    {
      "criterion": "AC5: verify.sh green",
      "test": "./scripts/verify.sh",
      "result": "PASS (exit 0)"
    }
  ],
  "regressions": "PASS - unit 23 passed | 6 skipped; F-002 integration 6 passed; health endpoint body unchanged",
  "evidence": [
    "live probes at PORT=3997 with fresh dist build",
    "npm test / test:integration green",
    "./scripts/verify.sh exit 0"
  ],
  "timestamp": "2026-08-14T20:16:00Z"
}