/**
 * AI Cache - Cache results by file hash
 */
export declare class AICache {
    private cacheDir;
    private ttlMs;
    constructor();
    ensureCacheDir(): Promise<void>;
    getFileHash(content: string): string;
    getCacheKey(fileHash: string, ruleId: string): string;
    get(fileContent: string, ruleId: string): Promise<any | null>;
    set(fileContent: string, ruleId: string, result: any): Promise<void>;
    clear(): Promise<void>;
}
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