I was thinking of increasing the players stats via dialgoue,
for example you do a quest and then as a reward you get a +1 to shortblade or something along those lines.

now heres the thing, is it better to do this where its an ability ( so a spell is added) or just as a mod stat command ( for exmple modshortblade +1 or whatever the command is)

=MA=

Mod stats are easier to implement I think. Just modify the state and forget about it.

+1 for modstat - especcially since this kind of increase works without any problems in mods like GCD

well that settles that question then, I think I will go with this to maximise compatibility.