I18n Expert

If you're adding i18n to a React/Next/Vue codebase or auditing one that's half-done, this skill walks through the full cycle: install and configure react-i18next or the framework equivalent, hunt down hardcoded strings with regex, replace them with translation keys, ensure en-US and zh-CN parity, and localize error messages so users never see raw error.message. It includes a Python audit script to catch missing keys and dynamic translation calls. The workflow is opinionated about namespace structure, pluralization, and treating missing translations as blockers. Useful if you need comprehensive i18n coverage and want to avoid the usual pitfalls like exposing English-only errors or breaking tests that assert on visible text.