export interface RunTaskState {
    taskId: string;
    phaseIndex: number;
    iterationCounts: Record<string, number>;
    halted: boolean;
    /** Set on cancellation so the resume prompt can say "cancelled" vs "halted". */
    status?: "cancelled" | "halted" | "running";
    lastError?: string;
    savedAt: string;
}
export declare function readState(cwd: string, taskId: string): RunTaskState | null;
export declare function writeState(cwd: string, state: RunTaskState): void;
export declare function deleteState(cwd: string, taskId: string): void;
export declare function isStateStale(state: RunTaskState): boolean;