{
  "id": "msg_01TRUNC",
  "type": "message",
  "role": "assistant",
  "content": [
    {"type": "text", "text": "This response was cut"}
  ],
  "model": "claude-opus-5",
  "stop_reason": "max_tokens",
  "stop_sequence": null,
  "usage": {"input_tokens": 5, "output_tokens": 100}
}