/**
 * Manages agent output ID allocation to ensure uniqueness.
 *
 * Each allocated ID gets a numeric prefix based on allocation order.
 * If configured with a parent prefix, the numeric prefix is appended after
 * the parent (e.g., "0-Parent.0-Child").
 * On resume, scans existing files to find the next available index.
 */
export declare class AgentOutputManager {
    #private;
    constructor(getArtifactsDir: () => string | null, options?: {
        parentPrefix?: string;
    });
    /**
     * Allocate a unique ID with numeric prefix.
     *
     * @param id Requested ID (e.g., "AuthProvider")
     * @returns Unique ID with prefix (e.g., "0-AuthProvider")
     */
    allocate(id: string): Promise<string>;
    /**
     * Allocate unique IDs for a batch of tasks.
     *
     * @param ids Array of requested IDs
     * @returns Array of unique IDs in same order
     */
    allocateBatch(ids: string[]): Promise<string[]>;
    /**
     * Get the next ID that would be allocated (without allocating).
     */
    peekNextIndex(): Promise<number>;
    /**
     * Reset state (primarily for testing).
     */
    reset(): void;
}