/**
 * Standalone proxy extension composition.
 *
 * This CLI/deployment boundary activates provider implementations before the
 * provider-neutral proxy runtime is imported. Core consumes the
 * `TokenCacheStore` contract and the Redis runtime provider published by the
 * extension loader.
 */
import { ExtensionLoader } from "../../../src/extensions/index.js";
import { type RegisterProxyShutdownHook } from "../../../src/proxy/shutdown-hooks.js";
/** Start explicit standalone proxy extension composition. */
export declare function activateStandaloneProxyExtensions(): Promise<ExtensionLoader | null>;
/** Register exactly-once provider teardown with the proxy's shutdown owner. */
export declare function registerStandaloneProxyExtensionTeardown(loader: ExtensionLoader | null, registerHook?: RegisterProxyShutdownHook): Promise<() => Promise<void>>;
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