Don't think there's such a schema but you can write a schema transformer function that accepts [:map [:a int?] [:b string?]] along with :my-ns and spits out [:map [:my-ns/a int?] [:my-ns/b string?]].

> I don’t want to type out the same namespace N times You can also use namespace aliases to alleviate the issue a bit. Another option would be to use malli.experimental.lite/schema:

(malli.experimental.lite/schema #:some-ns{:a int?, :b string?})
=> [:map [:some-ns/a int?] [:some-ns/b string?]]

I'm leaning towards the transformer option; thanks!