In July 2025, 최지인 contributed to the 2SIONN/goorm-frontend repository by delivering two frontend enhancements focused on collaboration and user experience. Using HTML, CSS, and JavaScript, 최지인 implemented a UI Placeholder Marker in index.html to clearly indicate team member-specific modifications, supporting maintainability and code review. Additionally, 최지인 expanded the application’s user-facing features by adding a contact form, a detailed profile page, and a phone input with validation, improving data quality and core user flows. The work demonstrated a methodical approach to incremental delivery and effective collaboration, though the scope was limited to feature development without documented bug fixes.