import { BaselineCalculator, type MetricPoint } from './baseline-calculator';
export interface AnomalyThresholds {
    errorRateDelta?: number;
    latencyDelta?: number;
    throughputDrop?: number;
    minSamples?: number;
}
export interface AnomalySignal {
    type: 'error_rate_spike' | 'latency_regression' | 'throughput_drop';
    delta: number;
    point: MetricPoint;
    baseline: ReturnType<BaselineCalculator['getSnapshot']>;
}
export declare class AnomalyDetector {
    private readonly baseline;
    private readonly thresholds;
    constructor(options?: AnomalyThresholds);
    evaluate(point: MetricPoint): AnomalySignal[];
    private relativeDelta;
    private relativeDrop;
}