{
  "feature_id": "F-004",
  "agent": "qa",
  "verdict": "APPROVED",
  "summary": "All 4 acceptance criteria verified with fresh executions (live process + fresh test runs).",
  "traceability": [
    {
      "criterion": "AC1: missing required env var -> startup fails with clear message",
      "test": "fresh live run: env -u DATABASE_URL node dist/infrastructure/http/server.js",
      "result": "PASS (prints 'Invalid configuration: - DATABASE_URL is required', exit code 1)"
    },
    {
      "criterion": "AC2: flag off -> guarded path skipped",
      "test": "feature-flag-store.test.ts 'skips a guarded path when the flag is off' + config-flags.test.ts",
      "result": "PASS"
    },
    {
      "criterion": "AC3: flag state change does not require redeploy",
      "test": "'flips state at runtime without a new store' + composition 'runs once enabled at runtime' on the SAME app instance",
      "result": "PASS"
    },
    {
      "criterion": "AC4: verify.sh green",
      "test": "./scripts/verify.sh",
      "result": "PASS (exit 0)"
    }
  ],
  "regressions": "PASS - full unit suite 38 passed | 6 skipped; F-002 integration 6 passed; /health returns 200 under valid config",
  "evidence": [
    "fresh live fail-fast run (exit 1, clear message naming DATABASE_URL)",
    "fresh vitest run of flags unit + composition tests: 7 passed",
    "./scripts/verify.sh exit 0"
  ],
  "timestamp": "2026-08-14T20:28:00Z"
}