Handles the full next-intl setup for Next.js App Router with prefix-based locale routing like /en/about and /ja/about. Walks you through the Next.js 16 proxy (or middleware for older versions), routing config, message loading, and the locale layout pattern where you validate params, call setRequestLocale, and wrap with NextIntlClientProvider. Includes copy-paste examples for navigation components, pages, and the JSON message structure. The checklist format is handy because next-intl has a lot of moving parts and it's easy to miss the setRequestLocale call in pages or forget to export generateStaticParams. Good if you're wiring up i18n from scratch or fixing static rendering issues.
npx skills add https://github.com/liuchiawei/agent-skills --skill next-intl-app-router