import type { Task } from '../protocol.js';
interface PersistedQueueState {
    queue: {
        task: Task;
        addedAt: string;
    }[];
    completedCount: number;
    errorCount: number;
    savedAt: string;
}
/**
 * Saves queue state to disk so it can survive daemon restarts.
 */
export declare function saveQueueState(queue: {
    task: Task;
    addedAt: Date;
}[], completedCount: number, errorCount: number): Promise<void>;
/**
 * Loads queue state from disk. Returns null if no saved state exists.
 */
export declare function loadQueueState(): Promise<PersistedQueueState | null>;
/**
 * Clears persisted queue state from disk.
 */
export declare function clearQueueState(): Promise<void>;
export {};
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