it's late but. Yes. You can use i18nGuard — an i18n‑aware linter for JS/TS that flags hard‑coded strings and also checks missing/unused keys across i18next, React‑Intl (FormatJS), and Lingui. I wrote a short post with setup and examples here: Stop shipping hard‑coded strings: Meet i18nGuard — an i18n linter for JS/TS (i18next, React‑Intl, Lingui) (https://dev.to/rmi_b83569184f2a7c0522ad/stop-shipping-hard-coded-strings-meet-i18nguard-an-i18n-linter-for-jsts-i18next-react-intl-4m8a).