Xi Xi Li contributed to the PCL-Community/PCL2-CE repository by addressing a critical bug in the Cleanroom Loader installation flow on the instance modification page. Using VB.NET and front end development skills, Xi implemented robust compatibility checks to ensure the loader path was correctly validated, reducing installation failures and deployment friction. The patch improved the reliability of instance upgrades and modifications, directly supporting smoother customer workflows. Throughout the process, Xi demonstrated strong debugging and patching abilities, maintaining clear Git traceability. While the work focused on a single targeted fix, it reflected careful attention to stability and user experience within the codebase.