Hi

Reading this 
http://git.savannah.gnu.org/cgit/guix.git/tree/gnu/services/monitoring.scm

I would like to know what darkstat is without having to look elsewhere.

None of the (define-s have docstrings and the top comment

;;;
;;; darkstat
;;;

does not help much.

prometheus-node-exporter-shepherd-service is just as little documented 
in the same file. From the file I have no idea what this does as its 
only documentation is:

|(shepherd-service (documentation "Prometheus node exporter.")|

---

http://git.savannah.gnu.org/cgit/guix.git/tree/gnu/services/admin.scm

Is generally a little better documented with docstrings. But here a 
header like

;;;
;;; darkstat
;;;

is missing for rottlog and also a short description of what rottlog 
does. (from the name and peeking at the code I'm guessing it rotates 
logs but many services have arbitrary names, especially to newcomers on 
GNU/Linux)

-- 
Cheers
Swedebugia