This flow can work with jj also. It would probably be exactly the same. You'd do `jj new` and have Claude set the description and make its changes. When you're ready for the next round, you'd repeat and do `jj new` again for the next revision.

I think jj's mutable revisions are best thought of as automation around `git commit --amend && rebase_everything_after_this_commit`. If you're not using that kind of flow with Claude, you wouldn't use that kind of flow with jj either.