/**
 * TTL-based analysis result cache with LRU eviction.
 * Designed for session-level caching of expensive analysis functions
 * (e.g., analyzeHotspotsAndChurn, analyzeContributors).
 */
export interface CacheStats {
    hits: number;
    misses: number;
    size: number;
    evictions: number;
}
export declare class AnalysisCache {
    private readonly store;
    private readonly ttlMs;
    private readonly maxEntries;
    private hits;
    private misses;
    private evictions;
    constructor(options?: {
        ttlMs?: number;
        maxEntries?: number;
    });
    get<T>(key: string): T | undefined;
    set<T>(key: string, value: T): void;
    clear(): void;
    stats(): CacheStats;
    private evictLRU;
}
/**
 * Build a stable cache key from function name and arguments.
 */
export declare function buildCacheKey(functionName: string, repoPath: string, options: Record<string, unknown>): string;