ESLint Plugin No Barrel Files

ESLint plugin (v1.3.1) that disallows barrel files — re-export modules that aggregate and re-export other modules. Barrel files are known to slow down builds/tests, cause circular dependencies, and hinder tree shaking. This plugin provides a single rule `no-barrel-files` that flags patterns like `export * from './foo'` or re-importing a default and re-exporting it. Supports flat config (ESLint 9+) and legacy config (ESLint 8). Actively maintained with TypeScript type declarations. Alternative to manual code review or other linting rules that partially address barrel files.