During February 2026, work focused on improving the quarylabs/sqruff repository by addressing a critical issue with SQL comment insertion integrity. Using Rust and SQL, the developer refined the AST-based insertion logic to ensure comments were placed correctly within formatted SQL, preventing them from merging with code lines and preserving overall syntax. This involved strengthening tree navigation and aligning insertion points with AST levels, which enhanced the maintainability and reliability of the code linting workflow. Targeted tests were added to verify the fix and maintain SQL integrity, resulting in more accurate formatting and faster debugging for future development cycles.