Browserslist Lint

Linter for Browserslist configuration files. Checks target browser queries against popular mistakes like missing 'not dead', ignoring browser diversity, or listing already dead browsers. Stable version 0.4.0, released frequently alongside Browserslist ecosystem. Integrates with CI via CLI or npx. Differentiator: opinionated rules to avoid common footguns when defining browser targets, with online checking at browsersl.ist.