export type BgTaskStatus = "queued" | "running" | "completed" | "failed";
export type BgTaskRecord = {
    id: string;
    parentSessionID: string;
    targetSessionID: string;
    requestMessageID: string;
    agent?: string;
    prompt: string;
    status: BgTaskStatus;
    createdAt: number;
    startedAt?: number;
    finishedAt?: number;
    error?: string;
    fullContext: boolean;
};
export declare function createBgTask(args: {
    parentSessionID: string;
    targetSessionID: string;
    requestMessageID: string;
    agent?: string;
    prompt: string;
    fullContext: boolean;
}): BgTaskRecord;
export declare function markBgTaskRunning(id: string): void;
export declare function markBgTaskFailed(id: string, error: string): void;
export declare function markBgTaskCompleted(id: string): void;
export declare function getBgTask(id: string): BgTaskRecord | undefined;
export declare function listBgTasksForSession(sessionID: string): BgTaskRecord[];
export declare function formatBgTaskLine(task: BgTaskRecord): string;