{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://app.truefoundry.com/schemas/chat-completion-request",
  "title": "Chat Completion Request",
  "description": "Request schema for TrueFoundry AI Gateway chat completions (OpenAI-compatible)",
  "type": "object",
  "required": ["model", "messages"],
  "properties": {
    "model": {
      "type": "string",
      "description": "Model identifier (e.g., gpt-4o, claude-3-5-sonnet-20241022)",
      "minLength": 1
    },
    "messages": {
      "type": "array",
      "description": "Conversation history",
      "minItems": 1,
      "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" }
        }
      }
    },
    "temperature": {
      "type": "number",
      "minimum": 0,
      "maximum": 2,
      "description": "Sampling randomness"
    },
    "max_tokens": {
      "type": "integer",
      "minimum": 1
    },
    "stream": {
      "type": "boolean",
      "default": false
    },
    "tools": {
      "type": "array",
      "description": "Tool definitions for function calling"
    },
    "user": {
      "type": "string",
      "description": "End-user identifier for monitoring"
    }
  },
  "additionalProperties": true
}