import type { ConfiguredCliRegistration } from './registration.js';
/** Minimal metadata stored with a cached manifest. */
export interface CacheMetadata {
    /** The endpoint this manifest was fetched from; a mismatch invalidates the cache. */
    endpoint: string;
}
/** Read the cached manifest bytes if present. Returns null if absent or unreadable. */
export declare function readConfiguredCliCacheManifest(registration: ConfiguredCliRegistration): Uint8Array | null;
/** Write a manifest to cache atomically. Replaces any prior manifest and stores minimal metadata. */
export declare function writeConfiguredCliCacheManifest(registration: ConfiguredCliRegistration, rawManifest: Uint8Array): void;
/** Check if cache metadata exists and matches the current endpoint.
 *  Returns true if both manifest and metadata exist with matching endpoint;
 *  false if absent, unreadable, or endpoint mismatch. */
export declare function isCacheMetadataValid(registration: ConfiguredCliRegistration): boolean;
/** Remove the cache directory for a registration. */
export declare function removeConfiguredCliCache(registration: ConfiguredCliRegistration): void;