import type { VersionRecord } from '../types.js';
/**
 * 检查目录是否存在
 */
export declare function dirExists(dir: string): Promise<boolean>;
/**
 * 确保目录存在
 */
export declare function ensureDir(dir: string): Promise<void>;
/**
 * 递归复制目录
 */
export declare function copyDir(src: string, dest: string): Promise<void>;
/**
 * 递归删除目录
 */
export declare function removeDir(dir: string): Promise<void>;
/**
 * 读取版本记录文件
 */
export declare function readVersionFile(versionFilePath: string): Promise<VersionRecord | null>;
/**
 * 写入版本记录文件
 */
export declare function writeVersionFile(versionFilePath: string, record: VersionRecord): Promise<void>;
/**
 * 获取 skill 源目录
 */
export declare function getSkillSourceDir(): string;
/**
 * 检查 skill 是否已安装
 */
export declare function isSkillInstalled(targetDir: string, skillName: string): Promise<boolean>;
/**
 * 获取目标目录中已存在的 skills
 */
export declare function getExistingSkills(targetDir: string, skillNames: string[]): Promise<string[]>;
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