Jinkyu Lee developed two front-end features for the speakeasy-api/gram repository, focusing on improving safety and usability in the settings interface. Using React and TypeScript, Jinkyu introduced a Danger Zone component for project deletion, which incorporates a confirmation dialog to prevent accidental data loss and streamlines the interface by removing the outdated projects table. Additionally, Jinkyu implemented a search bar with name-based filtering for API keys, enabling faster and more efficient key management. The work emphasized clear user workflows and risk reduction, demonstrating a solid grasp of front-end development principles and thoughtful application of modern JavaScript technologies.