Che Kun worked on the langgenius/dify repository, focusing on improving UI localization stability for the March 2025 release cycle. During this period, he addressed a critical bug affecting the dynamic display of tool counts, ensuring that the correct action term appeared across different locales. Using React and TypeScript, Che Kun enhanced the consistency of internationalization (i18n) logic, refining how language strings adapt to varying tool numbers. Although no new features were introduced, his work contributed to a more reliable and user-friendly interface for global users. The depth of his contribution lay in careful attention to localization edge cases and UI accuracy.