# I18n

> Internationalization for the Next.js 16 App Router without an i18n framework — [locale] segment routing, server-only dictionary pattern, Accept-Language negotiation in proxy.ts, hreflang via metadata alternates, Intl date/number formatting, RTL awareness — plus the discipline to skip all of it when the brief targets a single market. Invoke when design/BRIEF.md names two or more languages or markets, or when the user mentions translations, multilingual, locales, hreflang, language switcher, RTL, or "add a German/French/Spanish version". Also covers German/DACH typesetting (guillemets, ß/ẞ, DIN-5008 spacing, comma decimals) and the Leichte-Sprache plain-language register for civic/foundation DACH builds.

## Facts
- Page: https://tashan.sh/capability/skill-blyatiful1-i18n
- tashan id: skill:blyatiful1/i18n
- Source: https://github.com/blyatiful1/ultraweb
- Type: skill
- Category: other
- tashan score: not scored (catalogued only — too little public evidence)
- Adoption: 9.0
- Upkeep: 99.0
- Freshness: 97.0
- Evidence coverage: 84% of the inputs this score can use
- Health: active
- Instruction depth: not yet graded
- License: MIT
- Official: no

## Install

```sh
cp -r i18n ~/.claude/skills/
```

## Security audit
Not scanned. We audit npm-published capabilities; this one has no npm package we can resolve, or has not reached the queue. This is not a clean bill of health.

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Measured 2026-08-23 by tashan (https://tashan.sh) from public evidence. Scorer s5.