Worked on enhancing the Zulip/zulip repository by improving list handling within the compose box, focusing on preserving user-intended indentation for structured messages. Addressed edge cases where leading whitespace could disrupt list marker detection, ensuring that indentation is maintained when creating, continuing, or deleting list items. The solution involved extracting and reapplying leading whitespace during list operations, updating selection and deletion logic for empty indented items, and maintaining consistent behavior with Shift+Return. This work, implemented using TypeScript and front end development skills, contributed to a smoother typing experience and resolved issues related to indentation and list formatting in message composition.