Hi,
You can view all generated clientlibs under /var/clientlibs. This location will hold a cached version of all clientlibs. If we modify any clientlibs or Adobe granite HTML library manager configuration, then we have to delete all the contents in /var/clientlibs to cache the rebuilded code.
So var folder holds integrated cached version of clientlibs. So clientlibs must be updated in var folder to pickup changes.
Arun Patidar