export interface RateLimitConfig {
    maxRequests: number;
    windowMs: number;
    keyGenerator?: (args: Record<string, any>) => string;
}
export interface RateLimitInfo {
    remaining: number;
    resetTime: number;
    limit: number;
}
export interface RateLimitViolation {
    exceeded: boolean;
    remainingMs: number;
    retryAfter: number;
}
export declare class RateLimiterService {
    private static instance;
    private logger;
    private configs;
    private requests;
    private constructor();
    static getInstance(): RateLimiterService;
    configureToolLimit(toolName: string, config: RateLimitConfig): void;
    isAllowed(toolName: string, args?: Record<string, any>): boolean;
    checkRateLimit(toolName: string, args?: Record<string, any>): RateLimitViolation;
    getRateLimitInfo(toolName: string, args?: Record<string, any>): RateLimitInfo | undefined;
    recordRequest(toolName: string, args?: Record<string, any>): void;
    resetToolLimit(toolName: string): void;
    resetAll(): void;
    getConfiguredTools(): string[];
    removeToolLimit(toolName: string): void;
    static resetInstance(): void;
}
export declare const DEFAULT_RATE_LIMITS: Record<string, RateLimitConfig>;
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