Oxlint

This gives Claude the ability to run oxlint, the JavaScript/TypeScript linter that's 50-100x faster than ESLint. It's useful when you're working in a codebase that already has oxlint set up (look for it in package.json or a config file). Claude can lint after making changes, auto-fix issues with the fix flag, configure rules and categories, and help you interpret the output. The skill covers the full config format including rule severity levels, plugin setup, and file-specific overrides. One nice detail: it teaches Claude to prefer fixing the actual code issue rather than just suppressing rules, which leads to better outcomes than the usual "slap an ignore comment on it" reflex.