/**
 * Sensitive Data Filter
 *
 * Automatically detects and redacts sensitive information before
 * saving to memory. Applied globally to all memory write paths
 * (vector memory, memory blocks, auto-capture).
 *
 * Configurable via agent_hive.json → memoryFilter.
 *
 * Patterns supported:
 * - API keys (sk-*, pk-*, github personal tokens, etc.)
 * - AWS access keys + secret keys
 * - Private keys (RSA, ECDSA, ED25519, etc.)
 * - JWT tokens
 * - Generic bearer tokens
 * - Connection strings (postgres://, mysql://, mongodb://, etc.)
 * - Email addresses (optional, configurable)
 * - URLs containing credentials
 * - Environment variable assignments with sensitive values
 */
export interface MemoryFilterConfig {
    enabled?: boolean;
    /** Custom additional regex patterns (each with name and pattern string) */
    customPatterns?: Array<{
        name: string;
        pattern: string;
    }>;
    /** Whether to redact email addresses (default: false) */
    redactEmails?: boolean;
}
/**
 * Redact sensitive data from content before saving to memory.
 *
 * @param content - Raw content to sanitize
 * @param config - Optional config object
 * @returns Sanitized content with sensitive data replaced
 */
export declare function filterSensitiveData(content: string, config?: MemoryFilterConfig): string;
/**
 * Quick check if content likely contains sensitive data (for logging/audit).
 */
export declare function containsSensitiveData(content: string): boolean;