ParkChanYoung contributed to the se-sac/sesac-01 repository by establishing foundational documentation infrastructure for class homework assignments. Using Markdown and focusing on documentation update skills, ParkChanYoung created scaffolding for homework directories by adding structured README.md files, enabling a scalable and maintainable approach for future coursework documentation. Additionally, ParkChanYoung addressed metadata accuracy by correcting author attribution in class README files, ensuring proper credit and consistency across documentation. The work emphasized clarity and onboarding efficiency, laying groundwork for future contributors. While the scope was focused, the contributions demonstrated attention to detail and process, improving the overall reliability and usability of the project’s documentation.