During July 2025, Benjamin Planque developed the iSessionHandlerExtension interface for the Combodo/iTop repository, enabling extensibility for session data by allowing custom data to be added to iTop session files. He approached the task by designing an internal API in PHP, focusing on back-end development principles and aligning with project conventions through iterative commits. The interface was marked as experimental, with documentation clarifying its intended internal use and noting potential future changes. Although the work was limited to a single feature and did not involve bug fixes, it demonstrated depth in API design and careful attention to maintainability and documentation.