Would repair on the scissors make sense?
Can you be lucky to get more wool?
What else would make sense on a pair of scissors?
Repair doesn't make sense because you don't get any experience with it to fix it. As far as I know, there's no luck for the scissors.
It's best to add a classic shelf life.
And what if I enchant with a book?
I would say repairs are generally not worth doing on a pair of scissors, because you have to get exp to repair them. But since you don't get any exp when archiving, it's pointless.