These stories, while containing CSU characters, are written outside of the CSU timeline and do not directly affect events in the core Clan Short Universe stories at this time.
That does not mean, however, that they might not be incorporated at a future date; these stories all meet the guidelines for the CSU, so they are subject to their author granting permission for inclusion in the main timeline at any point. If this happens, the story's category will be changed to the main timeline category.