Worked on stabilizing authentication flows in the vercel/ai-chatbot repository, focusing on reliability and user experience. Addressed a critical bug in the login and registration process by correcting the dependency array in a React useEffect hook, ensuring the effect only triggered when authentication status changed. This fix eliminated an infinite loop that previously caused unnecessary re-renders, resulting in a smoother and more consistent authentication experience. The work was carried out using JavaScript and TypeScript within a Next.js front end, emphasizing disciplined change management and targeted remediation to improve the reliability and maintainability of the authentication module without introducing new features.