import type { BenchmarkReport } from "./benchmark-types.js";
export type BenchmarkDiff = {
    olderLabel: string;
    newerLabel: string;
    metrics: {
        passRateDelta: number;
        actionValidityDelta: number;
        executionValidationDelta: number;
        averageLatencyDeltaMs: number;
        averageRepairCountDelta: number;
        toolSuccessRateDelta: number;
    };
    regressed: boolean;
    regressions: string[];
};
export declare function diffBenchmarkReports(older: BenchmarkReport, newer: BenchmarkReport, labels?: {
    olderLabel?: string;
    newerLabel?: string;
}): BenchmarkDiff;
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