import { BaseGuard } from './base';
import { GuardResult } from '../types';
export declare class PromptInjectionGuard extends BaseGuard {
    private patterns;
    private suspiciousCommands;
    constructor(enabled?: boolean);
    private detectCommandInjection;
    private detectSystemPromptInjection;
    private detectMemoryResetInjection;
    validate(text: string): Promise<GuardResult>;
}