import type { StalenessInfo } from '../../types/security/index.js';
export type { StalenessInfo };
export declare const CVE_DB_PATH: string;
/** Check if known-cves.json is older than 7 days. */
export declare function isCveDatabaseStale(): Promise<StalenessInfo>;
/**
 * Refresh known-cves.json from OSV.dev for the given ecosystems.
 * Queries each package already in the database to get up-to-date CVE data.
 * Writes updated JSON via atomicWriteFile. Records refresh in cve-refresh-log.json.
 */
export declare function refreshCveDatabase(ecosystems: string[]): Promise<void>;
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