import { EventEmitter } from 'events';
import type { IModelRunner } from '../agent/model-runner.js';
export declare function cronSystemPromptForBackend(backend: IModelRunner['backendType']): string;
export interface CronWorkerOptions {
    emitter: EventEmitter;
    systemPrompt?: string;
    runnerFactory: () => IModelRunner;
}
export interface CronJobContext {
    jobId?: string;
    jobName?: string;
    channel?: string;
}
export interface CronCompletedEvent {
    jobId: string;
    jobName: string;
    result: string;
    duration: number;
    channel?: string;
}
export interface CronFailedEvent {
    jobId: string;
    jobName: string;
    error: string;
    duration: number;
    channel?: string;
}
export declare class CronWorker {
    private runner;
    private readonly emitter;
    private readonly systemPrompt;
    private readonly runnerFactory;
    private executionQueue;
    private accepting;
    private stopPromise;
    constructor(options: CronWorkerOptions);
    private ensureRunner;
    execute(prompt: string, context?: CronJobContext): Promise<string>;
    private executeInternal;
    stop(): Promise<void>;
}
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