Defined in: types.ts:327

UIMessage - Domain-specific message format optimized for building chat UIs Contains parts that can be text, tool calls, or tool results

optional createdAt: Date;

Defined in: types.ts:331

id: string;

Defined in: types.ts:328

parts: MessagePart[];

Defined in: types.ts:330

role: "user" | "assistant" | "system";

Defined in: types.ts:329