/**
 * HealthScoreService — computes system health from MetricsStore (STORY-021)
 *
 * Health score: 0-100 based on error rate, average latency, and uptime.
 */
import { MetricsStore } from './metrics-store.js';
export interface HealthReport {
    score: number;
    status: 'healthy' | 'degraded' | 'unhealthy';
    components: {
        prompt_latency: ComponentHealth;
        error_rate: ComponentHealth;
        tool_performance: ComponentHealth;
    };
    timestamp: number;
}
export interface ComponentHealth {
    score: number;
    details: Record<string, number | string>;
}
export declare class HealthScoreService {
    private store;
    constructor(store: MetricsStore);
    compute(windowMs?: number): HealthReport;
    private computePromptLatency;
    private computeErrorRate;
    private computeToolPerformance;
}
//# sourceMappingURL=health-score.d.ts.map