import { ExecutionContext } from '../types.js';
/**
 * Guard interface for protecting tool execution
 * Guards can perform authentication, authorization, validation, etc.
 */
export interface Guard {
    /**
     * Determines if the current execution context is allowed to proceed
     * @param context Execution context with request metadata
     * @returns true if allowed, false if denied, or throws an error
     */
    canActivate(context: ExecutionContext): boolean | Promise<boolean>;
}
/**
 * Type for guard constructor
 */
export type GuardConstructor = new (...args: unknown[]) => Guard;
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