This validator enforces Next.js 16 patterns and catches deprecated code that AI assistants love to generate from older versions. It checks for proxy.ts instead of middleware.ts, validates App Router structure, ensures Turbopack is enabled, and flags getServerSideProps usage that should be Server Components. Run it before starting Next.js work or after Claude generates code, since LLMs tend to output Next.js 14/15 patterns by default. The strict mode is unforgiving but honest about what needs migration. Pairs well with the tailwind and biome validators if you're auditing a full stack.
npx skills add https://github.com/shipshitdev/library --skill nextjs-validator