Worked on improving cross-mode editing reliability in the zed-industries/zed repository by addressing cursor positioning and mode-switching issues between Helix and Vim command contexts. Focused on a targeted bug fix that ensured the <g-l> command in Helix mode correctly placed the cursor at the last character of the line, and refined the logic for switching to Helix normal mode when escaping from the default Vim context. Utilized Rust and testing methodologies to implement and validate these changes, contributing clear release notes and collaborating with peers. The updates reduced user friction and aligned editor behavior with product consistency goals.