import type { Linter } from 'eslint';
export interface LintStatsResult {
    filePath: string;
    stats?: Linter.Stats;
}
export interface RulePerformanceSample {
    filePath: string;
    passIndex: number;
    totalMs: number;
}
export interface RulePerformance {
    averageMs: number;
    fileCount: number;
    maxMs: number;
    medianMs: number;
    percentile95Ms: number;
    ruleId: string;
    sampleCount: number;
    shareOfRuleTime: number;
    slowestSample: RulePerformanceSample;
    totalMs: number;
}
export interface RulePerformanceSummary {
    fileCount: number;
    fixMs: number;
    fixPassCount: number;
    parseMs: number;
    passCount: number;
    ruleMs: number;
    timedFileCount: number;
    totalMs: number;
}
export interface RulePerformanceReport {
    rules: RulePerformance[];
    summary: RulePerformanceSummary;
}
/**
 * Aggregates ESLint stats output into rule-level performance summaries.
 *
 * The resulting metrics keep separate views for cumulative cost, typical per-sample
 * cost, and tail latency so broad hotspots and narrow spikes remain distinguishable.
 */
export declare const profileEslintRulePerformance: (results: readonly LintStatsResult[]) => RulePerformanceReport;
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