If you are happy with the way I have set up action argument schemas in #20 , I might do the same here because I find myself wanting to pass an id parameter to the actions/cache action (so I can skip steps on cache hit).

regarding the id I guess you could do:

GithubActions.steps.actions/cache
          { path = "PATH", key = "KEY", hashFile = ["**/files"] } // { id = Some "ID" } 

It's inline with how we would set it for other actions.

Re: // { id = "foo" }: I think the record-of-three-args is juuust small enough that not using schemas still feels okay, given that we can splice the fields we need into the record afterwards (unless there's some big consistency push later to give everything a schema or somesuch). Thanks for the tip.