/**
 * [WHO]: PlanFileManager class, getPlansDirectory(), getPlanFilePath(), getPlan(), getPlanSlug()
 * [FROM]: Depends on node:fs, node:path, node:os, node:crypto, proper-lockfile, core/extensions-host/types (EventBus)
 * [TO]: Consumed by plan extension tools, workflow prompts, permission gating
 * [HERE]: extensions/builtin/plan/plan-file-manager.ts - plan file path management and I/O
 */
import { type PlanSessionState, type PlanStateEntryData } from "./types.js";
import type { SessionEntry } from "../../../core/session/session-manager.js";
export declare function getPlanSessionState(bus: unknown, sessionId?: string, entries?: SessionEntry[]): PlanSessionState;
export declare function hydratePlanSessionState(sessionState: PlanSessionState, sessionId: string, entries: SessionEntry[]): void;
export declare function serializePlanSessionState(sessionState: PlanSessionState): PlanStateEntryData;
export declare function generatePlanSlug(): string;
export declare function getPlansDirectory(settingsPlansDir?: string, cwd?: string): string;
export declare function resetPlansDirectoryCache(): void;
export declare function getPlanSlug(bus: unknown): string;
export declare function setPlanSlug(bus: unknown, slug: string): void;
export declare function clearPlanSlug(bus: unknown): void;
export declare function clearAllPlanSlugs(): void;
export declare function getPlanFilePath(bus: unknown, agentId?: string): string;
export declare function getPlan(bus: unknown, agentId?: string): string | null;
export declare function writePlan(bus: unknown, content: string, agentId?: string): Promise<boolean>;
export declare function planExists(bus: unknown, agentId?: string): boolean;
export declare function copyPlanForResume(sourceBus: unknown, targetBus: unknown): Promise<boolean>;
export declare function copyPlanForFork(sourceBus: unknown, targetBus: unknown): Promise<boolean>;
export declare function copyPlanFileToNewSlug(bus: unknown): Promise<boolean>;
export declare function copyPlanFile(sourcePath: string, targetPath: string): boolean;