OSX does not automatically delete from that directory. See: https://developer.apple.com/library/archive/documentation/General/Conceptual/MOSXAppProgrammingGuide

OSX does not automatically delete from that directory. See: https://developer.apple.com/library/archive/documentation/General/Conceptual/MOSXAppProgrammingGuide/AppRuntime/AppRuntime.html https://developer.apple.com/library/archive/documentation/Ge... > Your app is responsible for cleaning out cache data files when they are no longer needed. The system does not delete files from this directory. However, many third-party tools delete from that directory with minimal caution if any, so it's a good idea to consider it ephemeral.