/**
 * Regression Risk Scorer.
 *
 * Calculates weighted risk scores for detected changes to help prioritize fixes.
 * Considers multiple factors: breaking changes, tool importance, error rates,
 * performance regressions, and security posture.
 */
import type { BehavioralDiff } from './types.js';
/**
 * A single risk factor contributing to the overall score.
 */
export interface RiskFactor {
    /** Name of the risk factor */
    name: string;
    /** Weight in overall calculation (0-1) */
    weight: number;
    /** Raw score (0-100) */
    score: number;
    /** Weighted contribution to overall score */
    weightedScore: number;
    /** Details about this factor */
    details: string;
}
/**
 * Complete regression risk score.
 */
export interface RegressionRiskScore {
    /** Overall risk score (0-100) */
    score: number;
    /** Risk level classification */
    level: 'critical' | 'high' | 'medium' | 'low' | 'info';
    /** Individual risk factors */
    factors: RiskFactor[];
    /** Human-readable recommendation */
    recommendation: string;
    /** Breakdown of changes by severity */
    changeSummary: {
        breaking: number;
        warning: number;
        info: number;
        toolsRemoved: number;
        toolsAdded: number;
        toolsModified: number;
    };
}
/**
 * Calculate regression risk score from a behavioral diff.
 */
export declare function calculateRiskScore(diff: BehavioralDiff): RegressionRiskScore;
/**
 * Generate markdown report for risk score.
 */
export declare function generateRiskScoreMarkdown(riskScore: RegressionRiskScore): string;
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