Since GNU maintainers (in theory) already upload their stuff to
ftp.gnu.org or alpha.gnu.org using that file triplet it might be nice
if something could be worked into their existing workflow. Perhaps new
commands in the directive file to do the things you describe? This
would probably require coordinating with the FSF sysadmin.

Perhaps, in time, the things you describe could be even done by
default when new things are uploaded, since (I think) maintainers get
emails about stuff they upload anyway it seems like a good time to
include the output of the stuff you described?