LLM Function Calling Schema Builder

{
  "type": "function",
  "function": {
    "name": "get_weather",
    "description": "Fetch current weather for a city",
    "parameters": {
      "type": "object",
      "properties": {
        "city": {
          "type": "string",
          "description": "City name"
        },
        "unit": {
          "type": "string",
          "description": "Temperature unit",
          "enum": [
            "celsius",
            "fahrenheit"
          ]
        }
      },
      "required": [
        "city"
      ]
    }
  }
}