Worked on the Stirling-Tools/test-dont-use repository to enhance the reliability of the user interface by addressing a bug related to processing state management. Focused on front end development using JavaScript, the work involved ensuring that the 'bored waiting' button is hidden once a processing request completes, regardless of outcome, and that the 'submit' button is disabled during processing and re-enabled afterward to prevent duplicate submissions. This approach improved user experience by eliminating race conditions and duplicate actions, while also enhancing traceability through a directly linked commit, supporting future audits and debugging efforts within the JavaScript codebase.