Worked on improving the reliability of the catalyst/moodle-tool_objectfs repository by addressing a critical bug in the objectfs connection path. Focused on PHP back end development, the work involved implementing a robust client availability check to ensure that the client returned by manager::get_client is validated before proceeding with configuration checks. This approach reduced the risk of null reference errors and improved error handling when the client was unavailable, thereby minimizing the potential for cascading failures in object storage operations. The changes enhanced early failure visibility and contributed to greater stability in the PHP-based object storage integration for Moodle.