import type { HandoffRecord, HandoffIndexEntry } from "../utils/types.js";
import type { IHandoffStore } from "./interfaces.js";
export declare class HandoffStore implements IHandoffStore {
    private readonly handoffsDir;
    private readonly indexPath;
    constructor(twiningDir: string);
    /**
     * Create a new handoff record.
     * Writes individual JSON file, then appends to JSONL index.
     */
    create(input: Omit<HandoffRecord, "id" | "created_at">): Promise<HandoffRecord>;
    /**
     * Get a single handoff by ID.
     * Returns null if file doesn't exist.
     */
    get(id: string): Promise<HandoffRecord | null>;
    /**
     * List handoff index entries with optional filtering.
     * Reads from JSONL index for fast listing.
     */
    list(filters?: {
        source_agent?: string;
        target_agent?: string;
        scope?: string;
        since?: string;
        limit?: number;
    }): Promise<HandoffIndexEntry[]>;
    /**
     * Acknowledge a handoff.
     * Updates individual file and rewrites index entry atomically under lock.
     */
    acknowledge(id: string, acknowledgedBy: string): Promise<HandoffRecord>;
    /**
     * Compute aggregate result_status and create a lightweight index entry.
     */
    private toIndexEntry;
    /**
     * Compute aggregate result_status from results array.
     * - If no results, "completed"
     * - If all same status, that status
     * - If mixed, "mixed"
     */
    private computeResultStatus;
}
//# sourceMappingURL=handoff-store.d.ts.map