import type { GTLibrary } from '../types/libraries.js';
/**
 * Run the monorepo version consistency check.
 * If mismatched GT package versions are found, logs an error and exits with code 1.
 * Silently returns if not in a monorepo or if all versions are consistent.
 * Can be skipped via the --skip-version-check flag or "skipVersionCheck": true in gt.config.json.
 */
export declare function checkMonorepoVersionConsistency(libraries: readonly GTLibrary[]): void;