{
  "lexicon": 1,
  "id": "ai.syui.gpt.memory",
  "defs": {
    "main": {
      "type": "record",
      "description": "AI memory snapshot. Each record is a versioned snapshot of accumulated knowledge.",
      "key": "tid",
      "record": {
        "type": "object",
        "required": ["did", "content", "createdAt"],
        "properties": {
          "did": {
            "type": "string",
            "format": "did",
            "description": "DID of the AI agent this memory belongs to."
          },
          "content": {
            "type": "union",
            "closed": false,
            "refs": ["#markdown"],
            "description": "Memory content. Supports markdown and other formats via $type."
          },
          "version": {
            "type": "integer",
            "description": "Monotonically increasing version number of this memory snapshot."
          },
          "createdAt": {
            "type": "string",
            "format": "datetime",
            "description": "Timestamp when this memory snapshot was created."
          }
        }
      }
    },
    "markdown": {
      "type": "object",
      "description": "Markdown content format.",
      "required": ["text"],
      "properties": {
        "text": {
          "type": "string",
          "maxLength": 1000000,
          "maxGraphemes": 100000,
          "description": "Markdown text content."
        }
      }
    }
  }
}