How to name a subclass of a distro in App namespace?

This is a CPAN distribution naming question.

My understanding is that the 'App' top-level namespace on CPAN is 
intended for the use of distributions which someone will primarily use 
by running an executable program found in the distribution's 'bin/' 
directory rather than by constructing program using functions found in 
.pm files under the 'lib/' directory.

Examples:

Distribution            Executable
App-cpanminus           cpanm
App-cpanminus-reporter  cpanm-reporter

Now suppose that I want to write a library which subclasses an 'App' 
distribution but where I don't want to provide an "app", i.e., where I'm 
not going to write a script in the 'bin/' directory but am simply going 
to write methods in a module underneath 'lib/'.

Should such a library go into the 'App' namespace?  I wouldn't think so, 
because it no longer provides an app.

On the other hand, our ordinary practice when subclassing is to extend 
the name one directory deeper.  Dropping the 'App-' from the start of a 
distro's name when subclassing the distro deviates from this practice. 
That's potentially confusing to CPAN users.

Specifically, I want to create a distro which subclass garu's 
App-cpanminus-reporter but does not provide an installable in 'bin/'. 
Do I call it:

App-cpanminus-reporter-XXX

... or

Cpanminus-reporter-XXX

... or something else?

Thank you very much.
Jim Keenan