Developed the Hook Change Summary feature for the facebook/react repository, enhancing the Profiler in React DevTools to display names of changed hooks during debugging. This work introduced the HookChangeSummary component, which supports both compact and detailed views to improve the clarity and usability of profiling data. By optimizing hook-name context management, the implementation reduced unnecessary re-renders and improved overall performance across the DevTools interface. The feature was built using JavaScript, React, and CSS, focusing on front end development practices. These changes streamlined the debugging process by enabling faster identification of hook-state changes and established a foundation for scalable profiling user experiences.