{
  "date": "2026-10-27",
  "scope": "Synthetic one-file coding job through the connected Crest MCP interface; not a Grokbot/Dot client-specific certification",
  "service_tests_passed": 12,
  "first_runtime_check": {
    "model": "qwen3.5:4b",
    "runner": "mlx",
    "status": "failed",
    "http_status": 501,
    "reason": "structured output is unavailable",
    "changed_files": []
  },
  "compatible_runtime_check": {
    "model": "granite4.2:3b",
    "format": "gguf",
    "status": "completed",
    "changed_files": [
      "add.py"
    ],
    "caller_assertions_passed": 4,
    "original_content_backup_verified": true
  },
  "before": "def add(a, b):\n    return a - b\n",
  "after": "def add(a, b):\n    return a + b"
}