Message

The `Message` entity.

Definition

TypeScript

interface Message {
  id: string;
  threadId: string;
  authorParticipantId: string;
  content: Array<{ [x: string]: unknown; type: string }>;
  runId: string | null;
  createdAt: string;
}

Fields

Field	Type	Notes
`id`	`string`	`readonly` `required`
`threadId`	`string`	`required` — Thread this message belongs to.
`authorParticipantId`	`string`	`required` — Participant (user / agent / system) that authored the message.
`content`	`Array<{ [x: string]: unknown; type: string; }>`	`required` — Ordered array of UIMessage parts (text, function calls, attachments, etc.).
`runId`	`string \| null`	`required` — Run that produced this message; null for user-authored messages.
`createdAt`	`string`	`readonly` `required` — ISO-8601 timestamp of creation.