/**
 * Plugin registry for managing plugins attached to an agent.
 */
import type { Plugin } from './plugin.js';
import type { LocalAgent } from '../types/agent.js';
/**
 * Registry for managing plugins attached to an agent.
 *
 * Holds pending plugins and initializes them on first use.
 * Handles duplicate detection, tool registration, and calls each plugin's initAgent method.
 */
export declare class PluginRegistry {
    private readonly _plugins;
    private readonly _pending;
    constructor(plugins?: Plugin[]);
    /**
     * Initialize all pending plugins with the agent.
     * Safe to call multiple times — only runs once per pending batch.
     *
     * @param agent - The agent instance to initialize plugins with
     */
    initialize(agent: LocalAgent): Promise<void>;
    private _addAndInit;
}
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