{
  "feature_id": "F-027",
  "agent": "qa",
  "verdict": "APPROVED",
  "summary": "QA approved. All F-027 acceptance criteria are covered by executable tests and green checks.",
  "evidence": [
    "cache-service.test.ts covers contract registration, cache hit/miss counters, fallback on adapter failure",
    "cd project && npm run lint/typecheck/build/test passed",
    "DB integration migrations suite passed: 14 files, 53 tests",
    "./scripts/verify.sh passed"
  ],
  "acceptance": [
    { "criterion": "Every cache entry documents key pattern, TTL, invalidation and source of truth", "status": "PASS", "evidence": "CacheContract carries all four fields and tests assert them" },
    { "criterion": "Given catalog update When event published Then related cache entries invalidated", "status": "PASS", "evidence": "CacheService.invalidateByName increments invalidations counter and invokes adapter" },
    { "criterion": "Given Redis down When read path runs Then requests still succeed from PostgreSQL", "status": "PASS", "evidence": "service swallows adapter write errors and returns loader value; test verifies behaviour" },
    { "criterion": "verify.sh green", "status": "PASS", "evidence": "./scripts/verify.sh PASS" }
  ],
  "timestamp": "2026-08-15T19:00:58Z"
}