{
  "id": "msg_usage_x",
  "type": "message",
  "role": "assistant",
  "model": "claude-sonnet-4-5",
  "content": [
    {
      "type": "text",
      "text": "Done."
    }
  ],
  "stop_reason": "end_turn",
  "stop_sequence": null,
  "usage": {
    "input_tokens": 100,
    "output_tokens": 25,
    "cache_read_input_tokens": 80,
    "cache_creation_input_tokens": 0,
    "service_tier": "standard",
    "server_tool_use": {
      "web_search_requests": 2,
      "web_fetch_requests": 0
    }
  }
}