{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://neynar.com/schemas/hub/MessageDataCastAdd",
  "title": "Hub MessageDataCastAdd",
  "description": "Represents a new cast (post) being created in the Farcaster network. A cast can include text content, mentions of other users, embedded URLs, and references to parent posts for replies.",
  "allOf": [
    {
      "$ref": "#/components/schemas/MessageDataCommon"
    },
    {
      "type": "object",
      "required": [
        "castAddBody"
      ],
      "properties": {
        "castAddBody": {
          "description": "The content and metadata of the new cast, including the text, mentions, embeds, and any parent references for replies.",
          "allOf": [
            {
              "$ref": "#/components/schemas/CastAddBody"
            }
          ]
        }
      }
    }
  ]
}