Haven't worked with carbon fiber but .....
High rpm & Low pecking feed rates should help tearing.
Feel tools for heat - lower rpms if hot to touch or any tool discoloring especially!
Drill, ream for light pressfit bushings as guides to protect and strenghthen walls - countersink for bolts heads - allen wrench style. Mist for dust/ spray bottle keep switching fingers (Hee he).
Just some ideas!