import type { AgentTrace } from './types';
export interface TraceStats {
    traceCount: number;
    totalSteps: number;
    totalTokens: number;
    totalCost: number;
    avgDuration: number;
    toolUsage: Map<string, number>;
    traces: Array<{
        id: string;
        steps: number;
        tokens: number;
        cost: number;
        duration: number;
    }>;
}
export interface DetailedStats extends TraceStats {
    models: Map<string, number>;
    avgSteps: number;
    stdSteps: number;
    avgTokens: number;
    stdTokens: number;
    avgCost: number;
    stdCost: number;
    failureRate: number;
    p50Latency: number;
    p95Latency: number;
    p99Latency: number;
}
export declare function computeStats(traces: AgentTrace[]): TraceStats;
/**
 * Compute detailed statistics with standard deviations, percentiles, model breakdown.
 */
export declare function computeDetailedStats(traces: AgentTrace[]): DetailedStats;
export declare function formatStats(stats: TraceStats): string;
/**
 * Format detailed statistics with model breakdown, σ, percentiles.
 */
export declare function formatDetailedStats(stats: DetailedStats): string;
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