{
  "model_name": "spot-tool-json",
  "expects": {
    "tools_used": ["json"],
    "response_contains": ["key", "value"],
    "all_tools_succeeded": true,
    "min_responses": 1
  },
  "steps": [
    {
      "request_hint": {
        "last_user_message_contains": "json"
      },
      "response": {
        "type": "tool_calls",
        "tool_calls": [
          {
            "id": "call_json_1",
            "name": "json",
            "arguments": { "operation": "parse", "data": "{\"key\": \"value\"}" }
          }
        ],
        "input_tokens": 50,
        "output_tokens": 15
      }
    },
    {
      "response": {
        "type": "text",
        "content": "The JSON was parsed successfully. It contains a single key 'key' with value 'value'.",
        "input_tokens": 90,
        "output_tokens": 20
      }
    }
  ]
}