{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://discord.com/developers/schemas/discord/message.json",
  "title": "Discord Message",
  "description": "A message sent in a channel within Discord, containing content, embeds, attachments, reactions, and other rich features.",
  "type": "object",
  "required": ["id", "channel_id", "author", "content", "timestamp", "tts", "mention_everyone", "mentions", "mention_roles", "attachments", "embeds", "pinned", "type"],
  "properties": {
    "id": {
      "type": "string",
      "description": "Message ID (Snowflake)",
      "pattern": "^[0-9]+$"
    },
    "channel_id": {
      "type": "string",
      "description": "ID of the channel the message was sent in"
    },
    "author": {
      "$ref": "discord-user-schema.json"
    },
    "content": {
      "type": "string",
      "description": "Contents of the message",
      "maxLength": 2000
    },
    "timestamp": {
      "type": "string",
      "format": "date-time",
      "description": "When this message was sent"
    },
    "edited_timestamp": {
      "type": ["string", "null"],
      "format": "date-time",
      "description": "When this message was edited (null if never)"
    },
    "tts": {
      "type": "boolean",
      "description": "Whether this was a text-to-speech message"
    },
    "mention_everyone": {
      "type": "boolean",
      "description": "Whether this message mentions everyone"
    },
    "mentions": {
      "type": "array",
      "description": "Users specifically mentioned in the message",
      "items": {
        "$ref": "discord-user-schema.json"
      }
    },
    "mention_roles": {
      "type": "array",
      "description": "Roles specifically mentioned in this message",
      "items": {
        "type": "string"
      }
    },
    "mention_channels": {
      "type": "array",
      "description": "Channels mentioned in this message (crosspost only)",
      "items": {
        "type": "object",
        "properties": {
          "id": { "type": "string" },
          "guild_id": { "type": "string" },
          "type": { "type": "integer" },
          "name": { "type": "string" }
        }
      }
    },
    "attachments": {
      "type": "array",
      "description": "Attached files",
      "items": {
        "$ref": "#/$defs/Attachment"
      }
    },
    "embeds": {
      "type": "array",
      "description": "Embedded content",
      "items": {
        "$ref": "#/$defs/Embed"
      },
      "maxItems": 10
    },
    "reactions": {
      "type": "array",
      "description": "Reactions to the message",
      "items": {
        "$ref": "#/$defs/Reaction"
      }
    },
    "nonce": {
      "description": "Used for validating a message was sent",
      "oneOf": [
        { "type": "string" },
        { "type": "integer" }
      ]
    },
    "pinned": {
      "type": "boolean",
      "description": "Whether this message is pinned"
    },
    "webhook_id": {
      "type": "string",
      "description": "If generated by a webhook, this is the webhook's ID"
    },
    "type": {
      "type": "integer",
      "description": "Type of message"
    },
    "flags": {
      "type": "integer",
      "description": "Message flags combined as a bitfield"
    },
    "referenced_message": {
      "description": "The message associated with the message_reference",
      "oneOf": [
        { "$ref": "#" },
        { "type": "null" }
      ]
    },
    "thread": {
      "$ref": "discord-channel-schema.json",
      "description": "Thread started from this message"
    },
    "components": {
      "type": "array",
      "description": "Message components (buttons, selects, etc.)",
      "items": {
        "type": "object"
      }
    },
    "sticker_items": {
      "type": "array",
      "description": "Stickers sent with the message",
      "items": {
        "type": "object",
        "properties": {
          "id": { "type": "string" },
          "name": { "type": "string" },
          "format_type": { "type": "integer" }
        }
      }
    },
    "position": {
      "type": "integer",
      "description": "Approximate position of the message in a thread"
    }
  },
  "$defs": {
    "Attachment": {
      "type": "object",
      "description": "A file attached to a message",
      "required": ["id", "filename", "size", "url", "proxy_url"],
      "properties": {
        "id": {
          "type": "string",
          "description": "Attachment ID"
        },
        "filename": {
          "type": "string",
          "description": "Name of the file"
        },
        "description": {
          "type": "string",
          "description": "Description for the file (alt text)"
        },
        "content_type": {
          "type": "string",
          "description": "Media type of the file"
        },
        "size": {
          "type": "integer",
          "description": "Size of the file in bytes"
        },
        "url": {
          "type": "string",
          "format": "uri",
          "description": "Source URL of the file"
        },
        "proxy_url": {
          "type": "string",
          "format": "uri",
          "description": "Proxied URL of the file"
        },
        "height": {
          "type": ["integer", "null"],
          "description": "Height of image"
        },
        "width": {
          "type": ["integer", "null"],
          "description": "Width of image"
        },
        "ephemeral": {
          "type": "boolean",
          "description": "Whether this attachment is ephemeral"
        },
        "duration_secs": {
          "type": "number",
          "description": "Duration of audio file in seconds"
        },
        "waveform": {
          "type": "string",
          "description": "Base64-encoded waveform data for voice messages"
        },
        "flags": {
          "type": "integer",
          "description": "Attachment flags"
        }
      }
    },
    "Embed": {
      "type": "object",
      "description": "Embedded rich content in a message",
      "properties": {
        "title": {
          "type": "string",
          "maxLength": 256
        },
        "type": {
          "type": "string",
          "description": "Type of embed"
        },
        "description": {
          "type": "string",
          "maxLength": 4096
        },
        "url": {
          "type": "string",
          "format": "uri"
        },
        "timestamp": {
          "type": "string",
          "format": "date-time"
        },
        "color": {
          "type": "integer"
        },
        "footer": {
          "type": "object",
          "properties": {
            "text": { "type": "string", "maxLength": 2048 },
            "icon_url": { "type": "string", "format": "uri" },
            "proxy_icon_url": { "type": "string", "format": "uri" }
          },
          "required": ["text"]
        },
        "image": {
          "type": "object",
          "properties": {
            "url": { "type": "string", "format": "uri" },
            "proxy_url": { "type": "string", "format": "uri" },
            "height": { "type": "integer" },
            "width": { "type": "integer" }
          }
        },
        "thumbnail": {
          "type": "object",
          "properties": {
            "url": { "type": "string", "format": "uri" },
            "proxy_url": { "type": "string", "format": "uri" },
            "height": { "type": "integer" },
            "width": { "type": "integer" }
          }
        },
        "video": {
          "type": "object",
          "properties": {
            "url": { "type": "string", "format": "uri" },
            "height": { "type": "integer" },
            "width": { "type": "integer" }
          }
        },
        "provider": {
          "type": "object",
          "properties": {
            "name": { "type": "string" },
            "url": { "type": "string", "format": "uri" }
          }
        },
        "author": {
          "type": "object",
          "properties": {
            "name": { "type": "string", "maxLength": 256 },
            "url": { "type": "string", "format": "uri" },
            "icon_url": { "type": "string", "format": "uri" },
            "proxy_icon_url": { "type": "string", "format": "uri" }
          }
        },
        "fields": {
          "type": "array",
          "items": {
            "type": "object",
            "required": ["name", "value"],
            "properties": {
              "name": { "type": "string", "maxLength": 256 },
              "value": { "type": "string", "maxLength": 1024 },
              "inline": { "type": "boolean" }
            }
          },
          "maxItems": 25
        }
      }
    },
    "Reaction": {
      "type": "object",
      "description": "A reaction to a message",
      "properties": {
        "count": {
          "type": "integer",
          "description": "Total number of times this emoji has been used"
        },
        "count_details": {
          "type": "object",
          "properties": {
            "burst": { "type": "integer" },
            "normal": { "type": "integer" }
          }
        },
        "me": {
          "type": "boolean",
          "description": "Whether the current user reacted"
        },
        "me_burst": {
          "type": "boolean",
          "description": "Whether the current user super-reacted"
        },
        "emoji": {
          "$ref": "discord-emoji-schema.json"
        },
        "burst_colors": {
          "type": "array",
          "items": { "type": "string" }
        }
      }
    }
  }
}