/**
 * Tool Error Tracker - Tracks tool failures per session/turn
 *
 * Prevents agent from getting stuck in tool failure loops by:
 * - Counting failures per tool
 * - Tracking total failures
 * - Providing retry hints to agent
 */
export interface ToolFailureRecord {
    toolName: string;
    failureCount: number;
    lastError?: string;
    lastErrorTime: number;
}
export interface ToolErrorTrackerConfig {
    maxFailuresPerTool: number;
    maxTotalFailures: number;
    resetOnTurnEnd: boolean;
    failureWindowMs: number;
}
export declare class ToolErrorTracker {
    private failures;
    private totalFailures;
    private config;
    constructor(config?: Partial<ToolErrorTrackerConfig>);
    /**
     * Record a tool failure
     */
    recordFailure(toolName: string, error?: string): void;
    /**
     * Get failure count for a specific tool
     */
    getFailureCount(toolName: string): number;
    /**
     * Get remaining attempts for a tool
     */
    remainingAttempts(toolName: string): number;
    /**
     * Check if a specific tool has reached its failure limit
     */
    isToolLimitReached(toolName: string): boolean;
    /**
     * Check if total failure limit is reached
     */
    isTotalLimitReached(): boolean;
    /**
     * Check if any limit is reached (tool-specific or total)
     */
    isAnyLimitReached(): boolean;
    /**
     * Get the tool that has reached its limit (if any)
     */
    getLimitReachedTool(): string | null;
    /**
     * Get failure hint message for agent
     */
    getFailureHint(toolName: string): string;
    /**
     * Get all failure records
     */
    getFailures(): Map<string, ToolFailureRecord>;
    /**
     * Get summary of failures
     */
    getSummary(): {
        total: number;
        byTool: Record<string, number>;
    };
    /**
     * Reset all counters (called at end of turn)
     */
    reset(): void;
    /**
     * Reset failures for a specific tool
     */
    resetTool(toolName: string): void;
    /**
     * Get tracker configuration
     */
    getConfig(): ToolErrorTrackerConfig;
    /**
     * Clean up old failures (outside the failure window)
     */
    cleanupOldFailures(): void;
}