Worked on authentication-aware UI refinement for the BookClubQA_Python_2024_fall repository, focusing on the visibility of the 'My announcement' button in the application header. Developed a feature using Python and UI testing techniques to ensure the button is only visible to authenticated users, thereby aligning the user interface with authentication status and reducing potential security exposure. Added targeted test automation to verify that the button remains hidden when users are logged out, supporting consistent and predictable UI behavior. This work improved maintainability by introducing clear, focused tests and contributed to a more secure and user-friendly experience within the application.