import type { Limits } from '../../types/guardrails.js';
import type { RunState } from '../durable/types.js';
export declare class LimitsExceededError extends Error {
    constructor(message: string);
}
export declare function incrementTurnCount(run: RunState): number;
export declare function resetTurnCount(run: RunState): void;
export declare function assertWithinTurnLimit(run: RunState, limits?: Limits): void;
export declare function resolveMaxSteps(limits: Limits | undefined, fallback: number): number;