Most of the time I want cider-refresh to call cider-refresh-before-fn and cider-refresh-after-fn but sometimes I only want the refresh. I've been using advice to add a negative arity branch to cider-refresh and it's pretty nice.

P.S. I've never been in a situation where I wanted to run before-fn or after-fn only so this won't lead to an explosion in hard to remember prefixes.