During April 2025, Beiming focused on enhancing the robustness of the FetchPlan component in the langgenius/dify repository. He addressed a critical bug by introducing defensive checks and safe default values, ensuring that plan retrieval no longer resulted in undefined errors. Working primarily with React and TypeScript, Beiming improved error handling paths, which reduced runtime failures and stabilized downstream workflows. His changes emphasized clearer error propagation and maintainable code structure, directly increasing the reliability of the front end. Although the work centered on a single bug fix, it demonstrated careful attention to code quality and long-term maintainability within the project.