He Junxiang worked on the DeepModeling/abacus-develop repository, focusing on enhancing the Symmetry Basic module’s code quality and maintainability. He refactored legacy C-style casts in C++ to improve type safety and code readability, and systematically removed magic numbers from symmetry_basic.cpp, addressing potential runtime risks and clarifying the codebase. His approach emphasized robust code hygiene and future-proofing, streamlining subsequent refactoring efforts. Although the work spanned a single feature over one month, it demonstrated careful attention to maintainability and cross-file consistency. He Junxiang’s contributions centered on C++ code refactoring, debugging, and maintainability improvements within a complex scientific computing context.