Worked on the Shopify/theme-tools repository to optimize the Theme Language Server by refining its preloading strategy. Focused on restricting file preloading to only relevant Shopify theme directories, this approach reduced unnecessary memory consumption and improved analysis speed for large theme repositories. Updated the DocumentManager to align with the new targeted loading method, ensuring that only theme-specific files were processed and preventing large, unrelated JSON files from inflating memory usage. Delivered the enhancement as a single, low-risk commit using TypeScript and Node, with attention to full stack development and testing practices to improve scalability and developer feedback cycles.