/**
 * GoalManager：goal-driven 自主循环（对标 wave-agent GoalManager）。
 *
 * set goal → 每轮 incrementTurnCount → checkCircuitBreakers → evaluateGoal 判定达成。
 * circuit breakers：max turns / max duration / consecutive eval failures。
 *
 * evaluateGoal 接受 callback（用户自己提供 judge 逻辑，如用 Agent.query 让 LLM 判定）。
 */
export interface GoalState {
    condition: string;
    startedAt: number;
    turnCount: number;
    tokenBaseline: number;
    lastReason?: string;
    consecutiveEvalFailures: number;
}
export interface GoalEvalResult {
    isMet: boolean;
    reason: string;
}
export type GoalEvaluator = (context: {
    goal: GoalState;
    abortSignal?: AbortSignal;
}) => Promise<GoalEvalResult>;
export interface GoalManagerOptions {
    maxTurns?: number;
    maxDurationMs?: number;
    maxConsecutiveEvalFailures?: number;
    maxConditionLength?: number;
}
export declare class GoalManager {
    private state;
    private readonly maxTurns;
    private readonly maxDurationMs;
    private readonly maxConsecutiveEvalFailures;
    private readonly maxConditionLength;
    constructor(options?: GoalManagerOptions);
    setGoal(condition: string): void;
    clearGoal(): void;
    getGoal(): GoalState | null;
    isGoalActive(): boolean;
    incrementTurnCount(): void;
    recordEvalFailure(): void;
    resetEvalFailures(): void;
    /**
     * Check circuit breakers. Returns a clear reason if goal should be force-cleared, null otherwise.
     */
    checkCircuitBreakers(): string | null;
    getStatusString(): string;
    /**
     * Evaluate whether the goal has been met using the provided evaluator callback.
     * On success, resets consecutiveEvalFailures and updates lastReason.
     * On failure, increments consecutiveEvalFailures.
     */
    evaluateGoal(evaluator: GoalEvaluator, abortSignal?: AbortSignal): Promise<GoalEvalResult>;
    private formatElapsed;
}