/**
 * Agent Load Testing — stress test an agent with concurrent requests.
 * @module load-test
 */
export interface LoadTestConfig {
    /** Number of concurrent workers */
    concurrency: number;
    /** Duration string e.g. "60s", "5m" */
    duration: string;
    /** Optional max total requests (stop early) */
    maxRequests?: number;
    /** Optional ramp-up period string e.g. "10s" */
    rampUp?: string;
}
export interface LoadTestResult {
    totalRequests: number;
    successCount: number;
    failureCount: number;
    successRate: number;
    avgLatencyMs: number;
    p50LatencyMs: number;
    p95LatencyMs: number;
    p99LatencyMs: number;
    errors: LoadTestError[];
    totalCost: number;
    throughput: number;
    durationMs: number;
}
export interface LoadTestError {
    type: string;
    count: number;
    example?: string;
}
/**
 * Parse a duration string like "60s", "5m", "1h" into milliseconds.
 */
export declare function parseDuration(s: string): number;
/**
 * Calculate percentile from sorted array.
 */
export declare function percentile(sorted: number[], p: number): number;
/**
 * Aggregate individual results into a LoadTestResult.
 */
export declare function aggregateResults(results: Array<{
    passed: boolean;
    durationMs: number;
    error?: string;
    cost?: number;
}>, totalDurationMs: number): LoadTestResult;
/**
 * Classify an error string into a category.
 */
export declare function classifyError(error: string): string;
/**
 * Format load test results for console display.
 */
export declare function formatLoadTestResult(result: LoadTestResult): string;
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