Jihye delivered a targeted codebase reorganization for the Jihye511/Ssafy_Algo_Study repository, focusing on improving maintainability and contributor onboarding. Over the course of one month, she applied Java and file organization skills to rename Java files and restructure directories, creating a cleaner and more accessible package layout. This work did not involve bug fixes but instead established a scalable foundation for future development by reducing maintenance overhead and simplifying navigation for new contributors. The technical approach emphasized codebase hygiene and change management, resulting in a more organized structure that supports easier collaboration and future feature expansion within the Java ecosystem.