import type { InstalledExtension, ExtensionManifest, ExtensionCapability } from './types.js';
/**
 * In-memory registry of loaded extensions. The registry does NOT perform
 * dynamic `import()` — it stays purely data-driven.  The pipeline and CLI
 * query it to discover what capabilities are available.
 */
export declare class ExtensionRegistry {
    private readonly _extensions;
    /** Register an extension. */
    register(manifest: ExtensionManifest, path: string, enabled?: boolean): void;
    /** Unregister an extension by name. */
    unregister(name: string): boolean;
    /** Get all registered extensions. */
    all(): readonly InstalledExtension[];
    /** Get a single extension by name. */
    get(name: string): InstalledExtension | undefined;
    /** Get extensions that provide a given capability kind. */
    withCapability(kind: ExtensionCapability['kind']): readonly InstalledExtension[];
    /** Get all generator capabilities from enabled extensions. */
    generators(): readonly {
        ext: InstalledExtension;
        cap: Extract<ExtensionCapability, {
            kind: 'generator';
        }>;
    }[];
    /** Get all reviewer capabilities from enabled extensions. */
    reviewers(): readonly {
        ext: InstalledExtension;
        cap: Extract<ExtensionCapability, {
            kind: 'reviewer';
        }>;
    }[];
    /** Get all custom command capabilities from enabled extensions. */
    commands(): readonly {
        ext: InstalledExtension;
        cap: Extract<ExtensionCapability, {
            kind: 'command';
        }>;
    }[];
    /** Number of registered extensions. */
    get size(): number;
    /** Clear all extensions. */
    clear(): void;
}
//# sourceMappingURL=registry.d.ts.map