{
  "id": "fixture-gamedesignos-001",
  "object": "chat.completion",
  "choices": [
    {
      "index": 0,
      "message": {
        "role": "assistant",
        "content": "# Synthetic candidate\n\nThis offline fixture proves response parsing and artifact commit only. It is not evidence that a live model or provider works."
      },
      "finish_reason": "stop"
    }
  ]
}