Clojurians Log v2

Hi, I'm wondering how joker knows that (inc "test") is invalid (stating that "test" must be a number). Is it because inc uses clojure.spec? Edit: Looks like it's using metadata

(defn my-inc [^Number x]
  (inc x))

Does joker have a notion of threads? I'm creating a cli tool that fetches data from a bunch of URLs but I gotta do it serially pmap doesn't seem to exist. So I'm wondering if this is out of scope.

Thank you!

I see, are goroutines similar to core.async in Clojure?

What’s the policy on exit codes for joker? It returns 1 if one or more warnings/errors have been found right?

Does it have other return codes that have meanings? I’m experimenting with a linter myself and I’m wondering if this makes sense: exit code 0: no errors/warnings exit code 1: more than one errors/warnings exit code 2: something unexpected happened, e.g. parse error

I want to be able to distinguish between normal behavior and errors for testing in CI