import type { MonographDb } from './db.js';
export interface FileCacheEntry {
    filePath: string;
    contentHash: string;
    lastParsed: number;
    nodeCount: number;
    edgeCount: number;
}
export declare function hashFileContent(content: string): string;
export declare function isFileCached(db: MonographDb, filePath: string, contentHash: string): boolean;
export declare function updateFileCache(db: MonographDb, entry: FileCacheEntry): void;
/**
 * Bulk-upsert multiple file cache entries in a single transaction.
 * Prefer this over calling updateFileCache in a loop for pipeline batch writes.
 */
export declare function batchUpdateFileCache(db: MonographDb, entries: FileCacheEntry[]): void;
export declare function getFileCacheStats(db: MonographDb): {
    totalCached: number;
    hitRate: number;
    stalePaths: string[];
};
export declare function clearFileCache(db: MonographDb): void;
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