Jungwoo worked on the titicacadev/triple-frontend repository, focusing on improving the user interface’s data-driven behavior and stability. He addressed a bug in the POI Detail header by ensuring the 'View Reviews' button only appears when relevant review data exists, such as reviews, scraps, or a non-zero review count. This change aligned the UI with actual data availability, reducing user confusion and enhancing consistency. Jungwoo implemented the solution using React and TypeScript, with careful attention to documentation and commit traceability. He validated the fix across multiple data scenarios, demonstrating a methodical approach to frontend development and user experience reliability.