import { Observable, ObservableResult } from './Observable';
export type MetricValue = {
    value: number;
    timestamp: string;
    dimensions?: Record<string, string>;
};
export type MetricName = 'latency' | 'tokens' | 'memory_usage' | 'cpu_usage' | 'success_rate' | 'error_rate' | 'tool_usage' | 'prompt_length';
export declare class MetricsCollector extends Observable {
    private static instance;
    private metrics;
    private alertThresholds;
    private constructor();
    static getInstance(): MetricsCollector;
    private setupEventListeners;
    private handleMetricEvent;
    private buildMetricKey;
    recordMetric(agentId: string, metricName: MetricName, value: number, dimensions?: Record<string, string>): ObservableResult<void>;
    getMetric(agentId: string, metricName: MetricName, dimensions?: Record<string, string>): ObservableResult<MetricValue[]>;
    getMetricAverage(agentId: string, metricName: MetricName, timeWindowMs: number, dimensions?: Record<string, string>): ObservableResult<number>;
    setAlertThreshold(agentId: string, metricName: MetricName, threshold: number, dimensions?: Record<string, string>): ObservableResult<void>;
    clear(): ObservableResult<void>;
}