async-clj-omni is getting caching for ncm when doing completion. When typing clojure.zip/ you will only run the completion twice instead of (count "clojure.zip/") times. This is potentially faster, and we get it for free 🙂. There is a potential bug if I miss a case where a refresh should happen, and it is not. Please let me know if you feel something is wrong. I've already pushed the change, if you use ncm & async-clj-omni, make sure to update both 🙂