Lint idea: there's :unresolved-namespace (https://github.com/clj-kondo/clj-kondo/blob/master/doc/linters.md#unresolved-namespace), but it doesn't raise any flags when a fully qualified symbol's namespace is required and aliased or the symbol is referred. I'd love a linter that says "if an alias exists, warn on not using the alias. if the symbol is referred, warn on using the full namespace". Something like :qualified-symbols? To allow for fully configuring it with different styles: :fully-qualified would mean you have to write clojure.string/join , :prefer-alias would mean you have to write str/join if [clojure.string :as str :refer [join]] , :prefer-refer would mean you have to write join if [clojure.string :as str :refer [join]], :any would mean either str/join or join is fine if [clojure.string :as str :refer [join]] .

There is a clojure convention to use s, n, coll, m, and others to refer to the type of a function argument. Has there ever been any thought to transforming those kind of arguments into :type-mismatch linting rules? I am asking if it exists before I start building such a thing to see if it’s worthwhile.