/**
 * Last-line-of-defense output sanitizer.
 * Strips control-plane leakage from text before it reaches the user.
 */
export declare const CONTROL_PLANE_LEAK_PATTERNS: RegExp[];
/**
 * Returns true if the value contains any control-plane leak pattern.
 */
export declare function isControlPlaneLeak(value: string): boolean;
/**
 * Returns a safe Korean summary to display when a leak is detected.
 */
export declare function getSafeSummary(): string;
/**
 * Sanitizes user-visible output.
 * If a control-plane leak is detected, returns a safe summary.
 * Otherwise returns the original value unchanged.
 */
export declare function sanitizeUserVisibleOutput(value: string): string;
