/**
 * PluginManagerImpl — concrete implementation of the PluginManager interface.
 *
 * Every method resolves the target adapter from the AdapterRegistry,
 * checks `AgentCapabilities.supportsPlugins`, and delegates to the
 * adapter's optional plugin methods.
 *
 * @see 09-plugin-manager.md §2
 */
import type { AgentName } from './types.js';
import type { AdapterRegistry } from './adapter-registry.js';
import type { PluginManager } from './plugin-manager.js';
import type { InstalledPlugin, PluginListing, PluginDetail, PluginInstallOptions, PluginSearchOptions, PluginBrowseOptions } from './plugin-types.js';
/**
 * Concrete implementation of the PluginManager interface.
 * Delegates all operations to the appropriate agent adapter.
 */
export declare class PluginManagerImpl implements PluginManager {
    private readonly registry;
    constructor(registry: AdapterRegistry);
    /**
     * Resolves the adapter and asserts that it supports plugins.
     * Throws AGENT_NOT_FOUND or CAPABILITY_ERROR as appropriate.
     */
    private assertPluginCapable;
    private defaultFormatForAdapter;
    private isPluginFormat;
    private normalizeDate;
    private sortInstalledPlugins;
    private normalizeInstalledPlugin;
    private normalizePluginListing;
    private normalizePluginDetail;
    private toPluginError;
    private assertNonEmptyValue;
    private resolveSearchAdapters;
    private searchAcrossAdapters;
    list(agent: AgentName): Promise<InstalledPlugin[]>;
    install(agent: AgentName, pluginId: string, options?: PluginInstallOptions): Promise<InstalledPlugin>;
    uninstall(agent: AgentName, pluginId: string, options?: {
        global?: boolean;
    }): Promise<void>;
    update(agent: AgentName, pluginId: string): Promise<InstalledPlugin>;
    updateAll(agent: AgentName): Promise<InstalledPlugin[]>;
    search(query: string, options?: PluginSearchOptions): Promise<PluginListing[]>;
    browse(options?: PluginBrowseOptions): Promise<PluginListing[]>;
    info(pluginId: string, agent?: AgentName): Promise<PluginDetail>;
    isInstalled(agent: AgentName, pluginId: string): Promise<boolean>;
}