{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/CreateMessageRequest",
  "title": "CreateMessageRequest",
  "type": "object",
  "properties": {
    "roomId": {
      "type": "string",
      "description": "The room ID for the message."
    },
    "toPersonId": {
      "type": "string",
      "description": "Person ID to send a 1:1 message to."
    },
    "toPersonEmail": {
      "type": "string",
      "format": "email",
      "description": "Email address to send a 1:1 message to."
    },
    "parentId": {
      "type": "string",
      "description": "The parent message ID to reply to."
    },
    "text": {
      "type": "string",
      "description": "Plain text message content (max 7439 bytes).",
      "maxLength": 7439
    },
    "markdown": {
      "type": "string",
      "description": "Markdown-formatted message content (max 7439 bytes).",
      "maxLength": 7439
    },
    "files": {
      "type": "array",
      "description": "Public URL to a file attachment (one per message).",
      "items": {
        "type": "string",
        "format": "uri"
      },
      "maxItems": 1
    },
    "attachments": {
      "type": "array",
      "description": "Card attachments with adaptive card content.",
      "items": {
        "type": "object",
        "properties": {
          "contentType": {
            "type": "string"
          },
          "content": {
            "type": "object"
          }
        }
      }
    }
  }
}