eslint-plugin-barrel-files

ESLint plugin to detect barrel files (re-export aggregators) and imports from them, preventing unnecessary module loading in non-bundler environments. Current stable version 3.0.1. Release cadence is irregular; last major v3 dropped support for older ESLint versions. Differentiator: specifically targets barrel file patterns that cause performance issues in test runners, browsers, CDNs, and server-side runtimes where tree-shaking is absent. Alternatives like eslint-plugin-import have broader scope but don't focus on barrel files specifically.