import { ContextKey } from "#context/key.js";
import type { StubCall, StubResult } from "#tool-stubs/types.js";
/** Sends tool calls and failures to the workflow that tracks stub responses. */
export interface ToolStubPlayback {
    call(call: StubCall): Promise<StubResult>;
    fail(callId: string, error: string): Promise<void>;
}
export declare const ToolStubPlaybackKey: ContextKey<ToolStubPlayback>;