Defined in: types.ts:805

Emitted when a text message starts.

• BaseAGUIEvent

messageId: string;

Defined in: types.ts:808

Unique identifier for this message

optional model: string;

Defined in: types.ts:750

Model identifier for multi-model support

BaseAGUIEvent.model

optional rawEvent: unknown;

Defined in: types.ts:752

Original provider event for debugging/advanced use cases

BaseAGUIEvent.rawEvent

role: "assistant";

Defined in: types.ts:810

Role is always assistant for generated messages

timestamp: number;

Defined in: types.ts:748

BaseAGUIEvent.timestamp

type: "TEXT_MESSAGE_START";

Defined in: types.ts:806

BaseAGUIEvent.type