During March 2025, Huang Y. contributed targeted improvements to the arcsysu/YatCC repository, focusing on developer tooling and repository hygiene. Huang enabled STL container inspection in the debugger by updating launch.json, streamlining the debugging process for C++ data structures. To improve onboarding and documentation accuracy, Huang corrected the ANTLR grammar file reference in the README, ensuring consistency with the actual lexer file. Additionally, Huang enhanced repository cleanliness by updating the .gitignore to exclude .DS_Store files and removing tracked instances. These changes, implemented using C++, Git, and JSON, addressed practical workflow issues and demonstrated attention to detail in project maintenance.