Defined in: types.ts:810

Emitted when a tool call starts.

• BaseAGUIEvent

optional index: number;

optional index: number;

Defined in: types.ts:817

Index for parallel tool calls

optional model: string;

optional model: string;

Defined in: types.ts:722

Model identifier for multi-model support

BaseAGUIEvent.model

optional rawEvent: unknown;

optional rawEvent: unknown;

Defined in: types.ts:724

Original provider event for debugging/advanced use cases

BaseAGUIEvent.rawEvent

timestamp: number;

timestamp: number;

Defined in: types.ts:720

BaseAGUIEvent.timestamp

toolCallId: string;

toolCallId: string;

Defined in: types.ts:813

Unique identifier for this tool call

toolName: string;

toolName: string;

Defined in: types.ts:815

Name of the tool being called

type: "TOOL_CALL_START";

type: "TOOL_CALL_START";

Defined in: types.ts:811

BaseAGUIEvent.type