Defined in: types.ts:747

Base structure for AG-UI events. Extends AG-UI spec with TanStack AI additions (model field).

• RunStartedEvent
• RunFinishedEvent
• RunErrorEvent
• TextMessageStartEvent
• TextMessageContentEvent
• TextMessageEndEvent
• ToolCallStartEvent
• ToolCallArgsEvent
• ToolCallEndEvent
• StepStartedEvent
• StepFinishedEvent
• MessagesSnapshotEvent
• StateSnapshotEvent
• StateDeltaEvent
• CustomEvent

optional model: string;

Defined in: types.ts:751

Model identifier for multi-model support

optional rawEvent: unknown;

Defined in: types.ts:753

Original provider event for debugging/advanced use cases

timestamp: number;

Defined in: types.ts:749

type: AGUIEventType;

Defined in: types.ts:748