import 'reflect-metadata';
import { GuardConstructor } from './guard.interface.js';
/**
 * Metadata key for guards
 */
export declare const GUARDS_METADATA: unique symbol;
/**
 * UseGuards decorator - Applies guards to a tool method
 * Guards are executed before the tool handler
 *
 * @example
 * ```typescript
 * @Tool({ name: 'whoami', ... })
 * @UseGuards(JWTGuard)
 * async whoami(input: Record<string, unknown>, context: ExecutionContext) {
 *   // This only executes if JWTGuard.canActivate returns true
 * }
 * ```
 */
export declare function UseGuards(...guards: GuardConstructor[]): (target: object, propertyKey: string, descriptor: PropertyDescriptor) => PropertyDescriptor;
/**
 * Get guards metadata for a specific method
 */
export declare function getGuardsMetadata(target: object, methodName: string): GuardConstructor[];
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