Contributed to the gchq/CyberChef repository by delivering a feature that enables Markdown-rendered links to open in new browser tabs, improving user navigation and reducing confusion. Updated the front end rendering logic using JavaScript to ensure consistent new-tab behavior across all Markdown content. Employed test-driven development practices by adding automated tests to verify the feature and prevent regressions. Collaborated with other developers through co-authored commits, demonstrating effective teamwork and code quality. Focused on enhancing the user experience and content trust by making link behavior predictable. Demonstrated skills in JavaScript, front end development, and testing throughout the development process.