export type HealthComponentStatus = 'ok' | 'degraded' | 'unhealthy';
export interface HealthComponent {
    name: string;
    status: HealthComponentStatus;
    detail?: string;
}
export interface HealthReport {
    status: 'healthy' | 'degraded' | 'unhealthy';
    version: string;
    uptimeMs: number;
    checks: HealthComponent[];
}
export interface HealthDeps {
    tracer: {
        size: number;
        capacity: number;
    };
    traceStoreProbe: () => Promise<boolean>;
    memberCount: number;
    /** Optional provider probes — omitted entirely when none are configured.
     *  Boolean = key-presence probe; object = live request probe with detail. */
    providers?: Array<{
        name: string;
        probe: () => Promise<boolean | {
            ok: boolean;
            detail?: string;
        }>;
    }>;
    /** Optional observability-config probes; each omitted check is skipped */
    sentry?: {
        dsn?: string;
    };
    baselinesProbe?: () => Promise<boolean>;
    retentionProbe?: () => Promise<boolean>;
}
/**
 * Runs all component checks in parallel and derives the overall status:
 * any unhealthy check degrades the report to unhealthy, otherwise any
 * degraded check reports degraded.
 */
export declare function healthCheck(deps: HealthDeps): Promise<HealthReport>;
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