Willgnner Santos focused on repository hygiene for the Willgnner-Santos/Fatesg-IA-2 project, addressing directory management and documentation to streamline future development. He introduced an empty .gitkeep file to the Banco-NoSQL directory, ensuring Git tracked the directory even when empty, and later removed both the directory and its tracking file to maintain a clean repository structure. Working primarily with Git and shell scripting, he documented each step to clarify onboarding and maintenance processes. While the work did not alter runtime behavior or product features, it improved maintainability and set a foundation for future enhancements by keeping the codebase organized and accessible.