i18n-frontend-implementer

Original：🇺🇸 English

Translated

Adds internationalization (i18n) infrastructure with translation plumbing, scalable key strategy, formatters for dates/numbers/currency, plural rules, and language switching. Use when implementing "internationalization", "translations", "multi-language support", or "i18n".

6installs

Sourcepatricio0312rev/skills

Added on2026-02-08

NPX Install

npx skill4agent add patricio0312rev/skills i18n-frontend-implementer

SKILL.md Content

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i18n Frontend Implementer

Implement internationalization with next-intl, react-i18next, or similar libraries.

Core Setup

1. Install:

npm install next-intl

or

react-i18next

2. Create dictionaries:

locales/en.json

,

locales/es.json

3. Provider setup: Wrap app with IntlProvider 4. Translation keys: Hierarchical namespace structure 5. Formatters: Date, number, currency formatting 6. Language switcher: Dropdown or flags UI

Translation Structure

json

{
  "common": { "nav": { "home": "Home", "about": "About" } },
  "auth": { "login": "Sign In", "logout": "Sign Out" },
  "errors": { "required": "{field} is required" }
}

Usage Examples

tsx

const t = useTranslations('common');
<h1>{t('nav.home')}</h1>

// With plurals
t('items', { count: 5 }) // "5 items"

// With formatting
<p>{formatDate(date, { dateStyle: 'long' })}</p>

Best Practices

Use namespaces for organization, extract all text to translations, handle plurals properly, format dates/numbers per locale, provide language switcher, support RTL languages, lazy-load translations.