import type { ClarifyRequestPayload } from '../agent/tools/clarify-tool.js';
export type ClarificationStreamEvent = {
    type: string;
} & Record<string, unknown>;
/** In-memory waiter exclusively for caller-owned ephemeral runs such as side chat. */
export declare class EphemeralClarificationWaiter {
    private readonly pending;
    start(input: {
        runId: string;
        publish: (event: ClarificationStreamEvent) => void;
        request: ClarifyRequestPayload;
        beforeResponse?: () => boolean;
    }): Promise<string>;
    answer(requestId: string, answer: string): boolean;
    cancelForRun(runId: string): void;
    dispose(): void;
}