/**
 * Content redaction utilities.
 */
import type { SensitivityLevel } from '../types.js';
/**
 * Replace all RESTRICTED pattern matches with [REDACTED].
 */
export declare function redactContent(content: string): string;
/**
 * Redact content appropriate to its sensitivity level.
 *
 * - RESTRICTED: fully redact all restricted patterns
 * - CONFIDENTIAL: partially mask confidential patterns (show first/last chars)
 * - INTERNAL / PUBLIC: return as-is
 */
export declare function redactForDisplay(content: string, level: SensitivityLevel): string;
