import type { ToolProfile } from '../interview/types.js';
import type { PerformanceConfidence } from '../baseline/types.js';
/**
 * Performance metrics for a single tool.
 */
export interface ToolPerformanceMetrics {
    toolName: string;
    callCount: number;
    avgMs: number;
    minMs: number;
    maxMs: number;
    p50Ms: number;
    p95Ms: number;
    stdDevMs: number;
    errorRate: number;
    /** Average time for tool execution only (MCP transport) */
    avgToolMs?: number;
    /** Average time for LLM analysis only */
    avgAnalysisMs?: number;
    /** Statistical confidence metrics */
    confidence?: PerformanceConfidence;
}
/**
 * Extract parameter list from schema.
 */
export declare function extractParameters(schema: Record<string, unknown> | undefined): string;
/**
 * Heuristic detection of error responses for summarization.
 */
export declare function looksLikeError(text: string): boolean;
/**
 * Calculate performance metrics for all tools.
 */
export declare function calculatePerformanceMetrics(profiles: ToolProfile[]): ToolPerformanceMetrics[];
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