{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/ChatCompletionRequest",
  "title": "ChatCompletionRequest",
  "type": "object",
  "required": [
    "model",
    "messages"
  ],
  "properties": {
    "model": {
      "type": "string",
      "description": "Model identifier (e.g., gpt-4o, claude-3-5-sonnet-20241022, gemini-2.0-flash). Use the provider's model ID as displayed in TrueFoundry's model catalog."
    },
    "messages": {
      "type": "array",
      "description": "Conversation history",
      "items": {
        "type": "object",
        "required": [
          "role",
          "content"
        ],
        "properties": {
          "role": {
            "type": "string",
            "enum": [
              "system",
              "user",
              "assistant",
              "function",
              "tool",
              "developer"
            ]
          },
          "content": {
            "oneOf": [
              {
                "type": "string"
              },
              {
                "type": "array"
              }
            ]
          },
          "name": {
            "type": "string"
          },
          "tool_calls": {
            "type": "array"
          },
          "tool_call_id": {
            "type": "string"
          }
        }
      }
    },
    "tools": {
      "type": "array",
      "description": "Tool definitions for function calling",
      "items": {
        "type": "object"
      }
    },
    "tool_choice": {
      "description": "Controls tool usage",
      "oneOf": [
        {
          "type": "string",
          "enum": [
            "none",
            "auto",
            "required"
          ]
        },
        {
          "type": "object"
        }
      ]
    },
    "temperature": {
      "type": "number",
      "minimum": 0,
      "maximum": 2,
      "description": "Sampling randomness (0=deterministic)"
    },
    "top_p": {
      "type": "number",
      "minimum": 0,
      "maximum": 1
    },
    "top_k": {
      "type": "integer",
      "minimum": 1
    },
    "n": {
      "type": "integer",
      "minimum": 1,
      "default": 1
    },
    "stream": {
      "type": "boolean",
      "default": false
    },
    "max_tokens": {
      "type": "integer",
      "minimum": 1
    },
    "stop": {
      "oneOf": [
        {
          "type": "string"
        },
        {
          "type": "array",
          "items": {
            "type": "string"
          }
        }
      ]
    },
    "presence_penalty": {
      "type": "number",
      "minimum": -2,
      "maximum": 2
    },
    "frequency_penalty": {
      "type": "number",
      "minimum": -2,
      "maximum": 2
    },
    "logprobs": {
      "type": "boolean"
    },
    "user": {
      "type": "string",
      "description": "End-user identifier for monitoring"
    }
  }
}