is it ok to use the glue to fix minor carbon ? need to know if the glue will not react with the carbon – like delamination or swelling of carbon perhaps ?
one of my carbon cable holder broke of the seatstay after crash in case you thought I want to glue a snapped frame ;D

I would think Araldite would do a better job.

From my RC car days I seem to recall it was recommended to seal the cut edges of carbon fibre sheet with super glue.

Yes Super glue and Carbon/epoxy are good friends! Get the lowest viscosity CA you can find, Zapp in the pink bottle is the best

Epoxy will be stronger – maybe try superglue first and if it doesn’t hold, then epoxy?