import type { AgentMeta } from "../settings.js";
/**
 * Returns true if the agent's expiry timestamp is in the past.
 */
export declare function isExpired(meta: AgentMeta): boolean;
/**
 * Returns the number of days (float) until the agent expires.
 * Negative if already expired.
 */
export declare function daysUntilExpiry(meta: AgentMeta): number;
/**
 * Returns a human-readable expiry string, e.g.
 * "expires in 7 days (2026-05-05)" or "expired 3 days ago (2026-04-25)".
 */
export declare function formatExpiry(meta: AgentMeta): string;