I've tried `:validate` and `:validate-fn` but they don't seem to be invoked for the value specified by the `:default` key (which as was suggested was ::missing and the :validate fn was :validate [(fn [x] (println "XXXXX:" x) (not= ::missing)) "Missing required option: --gitlab-token"]

Should I do this after I invoke parse-opts or in a :validate key?

after

oh ok... that's all I needed to know 😉 Thanks! I do feel that tools.cli could benefit with a :mandatory flag the way https://github.com/grammarly/omniconf does (too bad it doesn't work with babashka 😅 )

I think required options are contextual so it depends on how you invoked the tool. E.g. tool --help doesn't require any other options, but tool --foo might

Where does omniconf fail? We could look to make it work with bb if it's within reasonable distance. Let's talk in #babashka

Of course they are contextual, but if tools.cli performs validation I believe checking for existance falls into that category

Perhaps #clojure is the best channel to discuss new features for tools.cli.