/**
 * Shared staleness selection for local sandbox template stores (the
 * just-bash directory cache and the Docker template-image markers).
 *
 * An entry is stale when it is neither among the `retainCount` most
 * recently used entries nor used within the trailing `recentWindowMs`.
 */
export declare function selectStaleTemplateEntries<T extends {
    readonly mtimeMs: number;
}>(entries: readonly T[], input: {
    readonly now: number;
    readonly recentWindowMs: number;
    readonly retainCount: number;
}): T[];
export declare const LOCAL_SANDBOX_TEMPLATE_RECENT_WINDOW_MS: number;
export declare const LOCAL_SANDBOX_TEMPLATE_RETAIN_COUNT = 5;