Worked on stabilizing date handling within the EvaScans extension in the keiyoushi/extensions-source repository, focusing on ensuring consistent and correct date representation throughout the application. Addressed a bug that caused variability in date formats, which could impact both user interface consistency and downstream analytics. The solution involved targeted adjustments to date formatting logic using Kotlin, leveraging Android development skills and API integration expertise. Collaborated closely with another developer through co-authored commits, emphasizing code review and teamwork. This work improved data integrity and user experience by standardizing how dates are processed and displayed, contributing to the overall reliability of the extension.