/**
 * @license
 * Copyright 2025 OSAgent OC
 * SPDX-License-Identifier: Apache-2.0
 */
import type { SubagentHooks } from './subagent-hooks.js';
/**
 * Global registry for subagent hooks.
 *
 * This allows different parts of the system to register hooks that
 * will be called during subagent execution. Hooks are combined and
 * all registered handlers are called for each event.
 *
 * Usage:
 *   // Register hooks from UI or other modules
 *   subagentHooksRegistry.register('ui', {
 *     onStart: (p) => console.log('Subagent started:', p.name),
 *     postToolUse: (p) => trackToolUsage(p),
 *   });
 *
 *   // Get combined hooks for subagent creation
 *   const hooks = subagentHooksRegistry.getCombinedHooks();
 */
declare class SubagentHooksRegistry {
    private hooks;
    private combinedHooksCache;
    /**
     * Register hooks with a unique identifier.
     * If hooks with the same id exist, they will be replaced.
     */
    register(id: string, hooks: SubagentHooks): void;
    /**
     * Unregister hooks by id.
     */
    unregister(id: string): boolean;
    /**
     * Get all registered hooks combined into a single object.
     * Results are cached until hooks are modified.
     */
    getCombinedHooks(): SubagentHooks;
    /**
     * Check if any hooks are registered.
     */
    hasHooks(): boolean;
    /**
     * Get registered hook IDs.
     */
    getRegisteredIds(): string[];
    /**
     * Clear all registered hooks.
     */
    clear(): void;
}
/**
 * Global singleton instance of the hooks registry.
 */
export declare const subagentHooksRegistry: SubagentHooksRegistry;
export {};