/**
 * Heartbeat Scheduler
 *
 * Periodically polls HEARTBEAT.md and executes proactive tasks
 */
import type { AgentLoop } from '../agent/agent-loop.js';
export interface HeartbeatConfig {
    /** Interval in milliseconds (default: 30 minutes) */
    interval: number;
    /** Quiet hours start (0-23, default: 23) */
    quietStart: number;
    /** Quiet hours end (0-23, default: 8) */
    quietEnd: number;
    /** Discord channel ID to send notifications */
    notifyChannelId?: string;
}
export declare class HeartbeatScheduler {
    private config;
    private agentLoop;
    private timer;
    private startupTimer;
    private running;
    private sendNotification?;
    constructor(agentLoop: AgentLoop, config?: Partial<HeartbeatConfig>, sendNotification?: (channelId: string, message: string) => Promise<void>);
    /**
     * Start the heartbeat scheduler
     */
    /**
     * The cadence the watchdog should hold this leg to, or null when the
     * heartbeat is off. Boot declares the leg AFTER initLegCadence runs -
     * declaring from start() hit a null singleton and was silently unwatched
     * (review: a watchdog believed to be watching but isn't is the failure
     * mode this feature exists to prevent).
     */
    declaredCadence(): number | null;
    start(): void;
    /**
     * Stop the heartbeat scheduler
     */
    stop(): void;
    /**
     * Check if current time is within quiet hours
     */
    private isQuietHours;
    /**
     * Execute a heartbeat tick
     */
    private tick;
    /**
     * Manually trigger a heartbeat
     */
    triggerNow(): Promise<string>;
    /**
     * Update configuration
     */
    setConfig(config: Partial<HeartbeatConfig>): void;
    /**
     * Get current configuration
     */
    getConfig(): HeartbeatConfig;
}
//# sourceMappingURL=heartbeat.d.ts.map