export interface ToolMetrics {
    toolName: string;
    executionCount: number;
    successCount: number;
    errorCount: number;
    totalDurationMs: number;
    averageDurationMs: number;
    minDurationMs: number;
    maxDurationMs: number;
    lastExecutedAt: number;
    lastExecutionDurationMs: number;
    lastError?: string;
}
export interface ExecutionEvent {
    toolName: string;
    args: Record<string, any>;
    durationMs: number;
    success: boolean;
    error?: string;
    timestamp: number;
}
export interface SystemMetrics {
    totalExecutions: number;
    successfulExecutions: number;
    failedExecutions: number;
    averageDurationMs: number;
    totalDurationMs: number;
    toolMetrics: Record<string, ToolMetrics>;
    executionEvents: ExecutionEvent[];
}
export declare class TelemetryService {
    private static instance;
    private logger;
    private metrics;
    private events;
    private maxEvents;
    private enabled;
    private constructor();
    static getInstance(): TelemetryService;
    recordExecution(toolName: string, args: Record<string, any>, durationMs: number, success: boolean, error?: string): void;
    getToolMetrics(toolName: string): ToolMetrics | undefined;
    getAllMetrics(): SystemMetrics;
    getMetricsSummary(): {
        totalExecutions: number;
        successRate: number;
        averageDurationMs: number;
        toolCount: number;
    };
    getToolExecutionHistory(toolName: string, limit?: number): ExecutionEvent[];
    getRecentEvents(limit?: number): ExecutionEvent[];
    getToolUsageRanking(): Array<{
        toolName: string;
        count: number;
        successRate: number;
    }>;
    getToolPerformanceRanking(): Array<{
        toolName: string;
        averageDurationMs: number;
    }>;
    reset(): void;
    resetToolMetrics(toolName: string): void;
    enable(): void;
    disable(): void;
    isEnabled(): boolean;
    export(): object;
    exportAsString(): string;
    static resetInstance(): void;
    private sanitizeArgs;
}
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