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next-intl-add-language

Adds a new language to a Next.js app using next-intl.

Updated Nov 21, 2025
Search Tags:#localization#translation#next.js#i18n#internationalization#next-intl
One-click install
npx skills add https://github.com/lluppesms/dadabase.demo --skill next-intl-add-language
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: next-intl-add-language
Source: https://github.com/lluppesms/dadabase.demo/tree/main/.github/skills/next-intl-add-language
Command: npx skills add https://github.com/lluppesms/dadabase.demo --skill next-intl-add-language

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill streamlines the process of internationalizing a Next.js application by adding support for new languages, ensuring a consistent and comprehensive translation across the user interface.

Core Features & Use Cases

  • Internationalization (i18n): Integrates seamlessly with next-intl for robust i18n management.
  • Translation Management: Organizes all translations within the ./messages directory using JSON files.
  • Routing and Middleware Configuration: Updates necessary routing and middleware configurations to support new languages.
  • UI Integration: Ensures new languages are reflected in UI components like language toggles.
  • Use Case: You have an existing Next.js application with English translations and want to add Spanish support. This Skill will guide you through translating all English content, updating routing, and enabling the language switcher for Spanish users.

Quick Start

Add Spanish as a new language to the Next.js application.

Frequently Asked Questions about next-intl-add-language

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I add a new language to a Next.js app using next-intl?▼

To add a new language using next-intl, you need to manage translation files in the ./messages directory, update routing in src/i18n/routing.ts, modify src/middleware.ts, and integrate the new language into the language toggle component.

What files need to be updated for next-intl internationalization?▼

For next-intl internationalization, you must update translation JSON files in ./messages, configure routing in src/i18n/routing.ts, adjust middleware in src/middleware.ts, and update the UI in src/components/language-toggle.tsx.

How does next-intl handle routing and middleware for new languages?▼

next-intl handles new languages by updating routing configurations in src/i18n/routing.ts and adjusting middleware settings in src/middleware.ts to ensure the application correctly routes and serves content for the newly added locale.

Can I use next-intl to manage UI language toggles in Next.js?▼

Yes, you can use next-intl to manage UI language toggles by integrating the new language selection directly into the src/components/language-toggle.tsx component, allowing users to switch locales seamlessly.

Where are next-intl translation files stored in a Next.js project?▼

next-intl translation files are stored as JSON files within the ./messages directory, organizing all translated content for the application's supported languages in a centralized location.

What are the limitations of adding languages manually without a localization Skill?▼

Adding languages manually without a localization Skill risks missing critical updates in routing, middleware, or UI components, leading to inconsistent translations and broken navigation for the new locale.

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