export interface Task {
    id: string;
    message: string;
    previousResponseId: string | null;
    workingDirectory: string | null;
    status: "pending" | "running" | "completed" | "failed" | "cancelled";
    result: any | null;
    error: string | null;
    createdAt: Date;
    updatedAt: Date;
    abortController: AbortController | null;
}
/**
 * Task Service for handling async agent operations
 * Updated to work with SDK's AbortController instead of child processes
 */
export declare class TaskService {
    private activeTasks;
    private completedTasks;
    private cleanupInterval;
    private parentCheckInterval;
    private server;
    constructor();
    /**
     * Set the MCP server instance for sending notifications
     */
    setServer(server: any): void;
    /**
     * Create a new task
     */
    createTask(message: string, previousResponseId?: string | null, workingDirectory?: string | null): string;
    /**
     * Get task by ID
     */
    getTask(taskId: string): Task | undefined;
    /**
     * Get task by ID with validation
     */
    getTaskOrThrow(taskId: string): Task;
    /**
     * Update task with new properties
     */
    updateTask(taskId: string, updates: Partial<Task>): void;
    /**
     * Cancel a running task using AbortController
     */
    cancelTask(taskId: string): boolean;
    /**
     * Get task statistics
     */
    getStats(): {
        active: number;
        completed: number;
        total: number;
    };
    /**
     * Clean up old completed tasks
     */
    private cleanup;
    /**
     * Send task started notification
     */
    sendTaskStartedNotification(taskId: string, message: string, workingDirectory: string | null): void;
    /**
     * Send system notification for task start
     */
    private sendSystemNotificationForStart;
    /**
     * Send MCP notification to client
     */
    private sendMcpNotification;
    /**
     * Send system notification when task completes
     */
    private sendNotification;
    /**
     * Check if parent process is still alive
     */
    private checkParentProcess;
    /**
     * Shutdown due to parent process exit - notify about each task
     */
    private shutdownDueToParentExit;
    /**
     * Destroy service and cancel all tasks
     */
    destroy(): void;
}
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