import { MetricsRegistry } from '@basaltkit/core';
export declare const METRICS: import("@basaltkit/core").Token<MetricsRegistry>;
export interface MetricsPluginOptions {
    path?: string;
    registry?: MetricsRegistry;
    instrumentHttp?: boolean;
}
/**
 * Prometheus `/metrics` + auto-instrumented HTTP, framework-neutral. Requests
 * are labelled by route template (from the adapter), keeping cardinality bounded.
 */
export declare function metricsPlugin(options?: MetricsPluginOptions): import("@basaltkit/core").BasaltPlugin<unknown>;