Worked on improving data quality and maintainability in the leereilly/explore repository by addressing catalog accuracy for pixel art tools. Focused on documentation management using Markdown, the developer identified and removed an incorrect entry for the Pyxel game engine, which had been misclassified as a pixel art tool. This correction ensured that the catalog accurately represents available pixel art tools, reducing user confusion and supporting better discovery. The process included validating the catalog structure and establishing an explicit audit trail through a referenced commit, contributing to the repository’s long-term integrity and making future documentation reviews more straightforward and reliable for maintainers.