{
  "lexicon": 1,
  "id": "ai.syui.log.chat",
  "defs": {
    "main": {
      "type": "record",
      "description": "Record containing a chat message in a conversation.",
      "key": "tid",
      "record": {
        "type": "object",
        "required": ["content", "author", "createdAt"],
        "properties": {
          "content": {
            "type": "string",
            "maxLength": 100000,
            "maxGraphemes": 10000,
            "description": "The content of the message."
          },
          "author": {
            "type": "string",
            "format": "did",
            "description": "DID of the message author."
          },
          "root": {
            "type": "string",
            "format": "at-uri",
            "description": "AT-URI of the root message in the thread."
          },
          "parent": {
            "type": "string",
            "format": "at-uri",
            "description": "AT-URI of the parent message being replied to."
          },
          "createdAt": {
            "type": "string",
            "format": "datetime",
            "description": "Client-declared timestamp when this message was created."
          }
        }
      }
    }
  }
}