/**
 * Shared wording and limits for harness reminders (follow-up, owner report
 * due, follow-through). A reminder tells the agent which attempt it is, how old
 * the original request is, and that an agent which already answered posts
 * nothing to the owner (audit 2026-10-14: reminders re-posted the same Google
 * Doc link; 77 of 317 were sent more than 24h after the request).
 *
 * @module services/orc/harness-reminder
 */
/**
 * Human age of a request ("5 min", "3 h", "2 days").
 *
 * @param ms - Age in milliseconds
 * @returns Short English age
 */
export declare function formatReminderAge(ms: number): string;
/**
 * Milliseconds since an ISO timestamp / epoch ms.
 *
 * @param since - When the original request happened
 * @param now - Epoch ms
 * @returns Age, or null when unknown
 */
export declare function reminderAgeMs(since: string | number | undefined, now: number): number | null;
/**
 * Whether the original request is too old to be reminded about.
 *
 * @param since - When the original request happened
 * @param now - Epoch ms
 * @returns True when older than {@link HARNESS_REMINDER_CONSTANTS.CUTOFF_MS}
 */
export declare function isPastReminderCutoff(since: string | number | undefined, now: number): boolean;
/**
 * Whether one more reminder would pass the per-item cap.
 *
 * @param sent - Reminders (including the first prompt) already sent for the item
 * @returns True when another may be sent
 */
export declare function mayRemindAgain(sent: number): boolean;
/**
 * The lines every reminder carries: attempt number, request age, and the
 * never-re-post rule.
 *
 * @param attempt - 1-based attempt number
 * @param since - When the original request happened
 * @param now - Epoch ms
 * @returns Text starting with a newline, ready to append to a reminder
 */
export declare function reminderFooter(attempt: number, since: string | number | undefined, now: number): string;
/**
 * The note for the team lead when a request is too old to remind the agent.
 *
 * @param what - What the request / promise was
 * @param agent - The agent it belongs to
 * @param since - When the original request happened
 * @param now - Epoch ms
 * @returns English harness text
 */
export declare function leadStaleNotice(what: string, agent: string, since: string | number | undefined, now: number): string;
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