spec/fixtures/responses/messages-tool-use.json


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{
  "id": "msg_tool_01",
  "type": "message",
  "role": "assistant",
  "model": "claude-sonnet-4-5-20250929",
  "stop_reason": "tool_use",
  "content": [
    {
      "type": "tool_use",
      "id": "toolu_abc123",
      "name": "proxy_bash",
      "input": {
        "command": "ls -la /tmp",
        "timeout": 30
      }
    }
  ],
  "usage": {
    "input_tokens": 40,
    "output_tokens": 20
  }
}