import type { ExtensionManifest, InstalledExtension } from './types.js';
import { ExtensionRegistry } from './registry.js';
/** Conventional directory for locally-installed extensions. */
export declare const EXTENSIONS_DIR = ".prodara/extensions";
/**
 * Load all extensions from `.prodara/extensions/` and populate a registry.
 */
export declare function loadExtensions(root: string): ExtensionRegistry;
/**
 * Install an extension from a local directory by copying its manifest.
 */
export declare function installExtension(root: string, name: string, manifest: ExtensionManifest): InstalledExtension;
/**
 * Remove an installed extension.
 */
export declare function removeExtension(root: string, name: string): void;
/**
 * List installed extensions (just metadata, no loading).
 */
export declare function listInstalledExtensions(root: string): InstalledExtension[];
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