Nandini Shastri focused on stabilizing the chat user interface for the neuralarc-ai/86a repository by addressing a persistent styling and rendering bug. Using React, TypeScript, and CSS, she refined the display of tool previews and restructured the floating tool preview layout to enhance visual alignment across chat contexts. Her work ensured that message content rendered cleanly without unintended line breaks and improved header spacing for a more polished layout. This targeted bug fix reduced visual defects and improved readability, resulting in a smoother, more reliable user experience that supports ongoing user engagement and retention within the web chat interface.