Function Call Flow Simulator

{
  "model": "gpt-6-astra",
  "tools": [
    {
      "type": "function",
      "function": {
        "name": "get_weather",
        "description": "Get current weather for a location",
        "parameters": {
          "type": "object",
          "required": [
            "location"],
          "properties": {
            "location": {
              "type": "string",
              "description": "City name"},
            "units": {
              "type": "string",
              "enum": [
                "celsius",
                "fahrenheit"],
              "description": "Temperature units"}
          }
        }
      }
    }
  ],
  "messages": [
    {
      "role": "user",
      "content": "What's the weather in San Francisco?"},
    {
      "role": "assistant",
      "content": null,
      "tool_calls": [
        {
          "id": "call_step-s2",
          "type": "function",
          "function": {
            "name": "get_weather",
            "arguments": "{\"location\": \"San Francisco\", \"units\": \"fahrenheit\"}"}
        }
      ]
    },
    {
      "role": "tool",
      "tool_call_id": "call_step-s2",
      "content": "{\"temperature\": 62, \"condition\": \"Partly Cloudy\", \"humidity\": 75}"},
    {
      "role": "assistant",
      "content": "The current weather in San Francisco is 62°F and partly cloudy with 75% humidity."}
  ]
}