Handles the full internationalization stack for Next.js apps with next-intl, from setup to production patterns. You get translation management across multiple locales, proper date and currency formatting that respects regional conventions, and RTL support for Arabic and Hebrew. The skill covers practical stuff like language switchers, pluralization rules, and client/server component patterns. Includes working examples for five languages out of the box (English, Spanish, French, German, Japanese) with translation files you can actually use. Useful when you need to ship multilingual apps and want someone who knows the next-intl API without having to reference docs constantly. The locale detection logic and logical CSS properties for RTL are especially solid.
npx skills add https://github.com/daffy0208/ai-dev-standards --skill localization-engineer