/**
 * /loop — cron scheduler, Cron* tools, and autonomous continuation.
 *
 * `/loop` schedules prompts via cron and drives autonomous continuation. The same
 * scheduler backs the agent-callable CronCreate/CronList/CronDelete tools.
 *
 *   /loop "<cron>" <prompt>     schedule recurring (5-field cron, local time)
 *   /loop <5m|2h|1d> <prompt>   schedule recurring at a simple interval
 *   /loop once "<cron>" <prompt>  schedule a one-shot
 *   /loop list | /loop delete <id> | /loop stop
 *   /loop auto [--max-turns N] <task>   keep iterating until the task says LOOP_DONE
 */
import type { ExtensionAPI } from "../../core/extensions/types.js";
/** Sentinel the agent replies with to declare the autonomous loop finished. */
export declare const AUTO_LOOP_DONE_TOKEN = "LOOP_DONE";
/**
 * Event-bus channel: the autonomous-loop active state changed.
 * Payload: `{ active: boolean }`. Emitted whenever `/loop auto` starts or stops
 * so other extensions (e.g. ask_options) can adapt to running unattended.
 */
export declare const LOOP_AUTO_CHANGED = "loop:auto-changed";
/**
 * Event-bus channel: request to halt the autonomous loop.
 * Payload: `{ reason: string }`. Sent by another extension when it hits a
 * blocker that requires a human decision the loop cannot safely make on its own.
 */
export declare const LOOP_HALT = "loop:halt";
/**
 * Event-bus channel: start the autonomous loop.
 * Payload: {@link LoopAutoStartPayload}. Mirrors LOOP_HALT in the opposite
 * direction, letting another extension (e.g. `/goal`) drive the loop without
 * reaching into state that lives inside this module's closure.
 */
export declare const LOOP_AUTO_START = "loop:auto-start";
/** Payload for {@link LOOP_AUTO_START}. */
export interface LoopAutoStartPayload {
    /** The task to work toward, delivered as the loop's first user message. */
    task: string;
    /** Turn budget before the loop stops itself. Defaults to 10. */
    maxTurns?: number;
    /**
     * Message re-sent on each continuation. Callers with a concrete completion
     * condition should restate it here, so the target does not drift out of view
     * as the transcript grows. Defaults to a generic nudge.
     */
    continuePrompt?: string;
}
export declare function setupLoop(hoo: ExtensionAPI): void;
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