import type { Package, StratifyResolvedConfig, Violation } from '../types/types.js';
/**
 * Validate all packages against layer configuration.
 *
 * @param packages - Discovered packages to validate.
 * @param config - Fully resolved stratify configuration.
 * @param allowedPackagesByLayer - Map from layer name to the set of allowed package names.
 *   If a layer is not in this map, it has no membership restrictions.
 */
export declare function validatePackages(packages: Package[], config: StratifyResolvedConfig, allowedPackagesByLayer?: Map<string, Set<string>>): Violation[];