import type { DetectorResult } from '../../schemas.js';
import type { SessionRead } from '../reader.js';
export declare const DEFAULT_TOOL_FAILURE_MIN_FAILURES = 3;
export declare const DEFAULT_TOOL_FAILURE_MIN_RATE = 0.25;
export interface ToolFailureDensityOptions {
    minFailures?: number;
    minFailureRate?: number;
}
export declare function detectToolFailureDensity(sessions: SessionRead[], options?: ToolFailureDensityOptions): DetectorResult[];
export declare function makeSlug(toolName: string): string;