/**
 * [WHO]: Deterministic sanitized failure-cohort diagnosis and integrity verification
 * [FROM]: Depends on node crypto plus the private validated evolution benchmark snapshot boundary
 * [TO]: Consumed by the offline PawBench evidence CLI and focused evolution tests
 * [HERE]: extensions/optional/evolution/benchmark-diagnosis.ts - advisory benchmark failure clustering
 */
declare const REPORT_KIND: "catui-evolution-failure-cohort-report";
type AuditSignal = "policy-violation" | "replay-divergence" | "unpaired-tool-call";
export type EvolutionFailureSignalV1 = `diagnostic:${string}` | AuditSignal;
export interface EvolutionFailureCohortV1 {
    id: EvolutionFailureSignalV1;
    signal: EvolutionFailureSignalV1;
    runCount: number;
    taskCount: number;
    taskIds: string[];
    taskIdsTruncated: boolean;
}
export interface EvolutionFailureCohortReportV1 {
    schemaVersion: 1;
    kind: typeof REPORT_KIND;
    generatedAt: string;
    snapshotHash: string;
    cohorts: EvolutionFailureCohortV1[];
    contentHash: string;
}
export declare function diagnoseEvolutionBenchmarkFailures(snapshotInput: unknown, options: {
    generatedAt: string;
}): EvolutionFailureCohortReportV1;
export declare function verifyEvolutionFailureCohortReport(value: unknown): value is EvolutionFailureCohortReportV1;
export {};