/** Storage, cache and artifact retention defaults. */
export interface RetentionPolicy {
    cacheDefaultTtlSeconds: number;
    vendorCacheTtlSeconds: number;
    artifactRetentionDays: number;
    telemetryRetentionDays: number;
    cleanupCadence: 'manual' | 'startup' | 'daily';
    maxArtifactBytes: number;
    notes: string[];
}
export declare const DEFAULT_RETENTION_POLICY: RetentionPolicy;
export declare function describeRetentionPolicy(policy?: RetentionPolicy): string;