Letta · Schema

MessageType

AIAgentsStateful AgentsMemoryMemGPTContinual LearningMCPMulti-AgentRAGOpen Source
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JSON Schema

letta-messagetype-schema.json Raw ↑ 
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/MessageType",
  "title": "MessageType",
  "type": "string",
  "enum": [
    "system_message",
    "user_message",
    "assistant_message",
    "reasoning_message",
    "hidden_reasoning_message",
    "tool_call_message",
    "tool_return_message",
    "approval_request_message",
    "approval_response_message",
    "summary_message",
    "event_message"
  ]
}