ReddRadar
Agent skill
i18n-frontend-implementer
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".
Install this agent skill to your Project
npx add-skill https://github.com/patricio0312rev/skills/tree/main/frontend/i18n-frontend-implementer
SKILL.md
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
{
"common": { "nav": { "home": "Home", "about": "About" } },
"auth": { "login": "Sign In", "logout": "Sign Out" },
"errors": { "required": "{field} is required" }
}
Usage Examples
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.
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