/**
 * Performance profiler for agent traces.
 *
 * Analyzes traces to compute latency percentiles, token efficiency,
 * cost estimates, and bottleneck identification.
 */
import type { AgentTrace } from './types';
export interface PercentileStats {
    p50: number;
    p95: number;
    p99: number;
    avg: number;
    min: number;
    max: number;
    count: number;
}
export interface ToolProfile {
    name: string;
    count: number;
    total_ms: number;
    pct_of_total: number;
    latency: PercentileStats;
}
export interface ProfileResult {
    trace_count: number;
    total_steps: number;
    llm_latency: PercentileStats;
    tool_latency: PercentileStats;
    tool_breakdown: ToolProfile[];
    token_efficiency: number;
    cost_per_query: number;
    total_cost: number;
    bottleneck: {
        name: string;
        pct: number;
    } | null;
    total_duration_ms: number;
}
/**
 * Profile one or more traces and return performance stats.
 */
export declare function profile(traces: AgentTrace[]): ProfileResult;
/**
 * Format profile result for terminal display.
 */
export declare function formatProfile(result: ProfileResult): string;
//# sourceMappingURL=profiler.d.ts.map