/**
 * File Organizer MCP Server v3.4.2
 * Path Security Utilities
 *
 * Whitelist/blacklist checking for path access control
 */
export interface PathValidationResult {
    allowed: boolean;
    reason?: string;
    hint?: string;
}
/**
 * Check if a path matches any blocked patterns
 */
export declare function isPathBlocked(normalizedPath: string): boolean;
/**
 * Check if a path is within allowed directories
 */
export declare function isPathInAllowedDirectories(normalizedPath: string): boolean;
/**
 * Main function to check if a path is allowed
 * Applies both blacklist and whitelist checks
 * Uses atomic validation with symlink detection to prevent race conditions
 */
export declare function isPathAllowed(requestedPath: string): Promise<PathValidationResult>;
/**
 * Get list of all allowed directories (for user info)
 */
export declare function getAllowedDirectories(): string[];
/**
 * Format a helpful access denied message with actionable information
 */
export declare function formatAccessDeniedMessage(requestedPath: string, validation: PathValidationResult): string;
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