import type { AgentConfig, AgentResult } from '../types/agent.js';
import type { CompletionRequest } from '../types/messages.js';
import type { NexusResponse } from '../types/response.js';
/** The part of a client the agent loop needs. */
export interface AgentModelClient {
    /** Runs one completion. */
    complete(request: CompletionRequest): Promise<NexusResponse>;
}
/**
 * A simple tool-calling loop: calls the model, runs the tools it asks for, and repeats until it
 * answers or runs out of iterations. `createAgent()` adds checkpoints and approvals.
 */
export declare class AgentLoop {
    private client;
    constructor(client: AgentModelClient);
    /** Runs the loop to completion. Defaults to 8 model calls. */
    run(config: AgentConfig): Promise<AgentResult>;
}