Handles Next.js App Router dynamic routes where you need URL segments to drive what renders. The big thing here is it pushes you toward simple structures by default. Instead of jumping to app/products/[id] for product pages, it defaults to app/[id] unless the URL structure explicitly requires nesting. Also covers the Next.js 15 breaking change where params became a Promise, so you'll see the await params pattern throughout. Useful when you're building detail pages, blog posts, or anything that fetches data based on an identifier in the path. The route structure decision tree is genuinely helpful for avoiding over-engineered folder hierarchies.
npx skills add https://github.com/wsimmonds/claude-nextjs-skills --skill nextjs-dynamic-routes-params