/**
 * src/agent/cron.ts
 *
 * Pillar A — Cron scheduled tasks.
 *
 * Exports:
 *   addCronTask({ cron, prompt, recurring })
 *   listCronTasks()
 *   removeCronTask(id)
 *
 * Persists to `.bizar/cron.json`.
 */
export interface CronTask {
    id: string;
    cron: string;
    prompt: string;
    recurring: boolean;
    createdAt: string;
}
/**
 * Add a cron task.
 *
 * @param opts.cron       — cron expression (e.g. "0 * * * *")
 * @param opts.prompt     — prompt to execute on trigger
 * @param opts.recurring  — if false, task is removed after first run
 * @param opts.repoRoot   — optional repo root override
 * @returns the created CronTask
 */
export declare function addCronTask(opts: {
    cron: string;
    prompt: string;
    recurring?: boolean;
    repoRoot?: string;
}): CronTask;
/**
 * List all cron tasks.
 */
export declare function listCronTasks(repoRoot?: string): CronTask[];
/**
 * Remove a cron task by id.
 * @returns true if the task existed and was removed
 */
export declare function removeCronTask(id: string, repoRoot?: string): boolean;
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