Comment by Meleagris

I do use git branches, but they solve isolation, which isn't my pain point with git.

When I'm using agents to code, I don't want to have to stop what I'm doing and commit known-good state to the repo every few minutes.

jj just snapshots everything automatically, so I know I've captured that state, and I can look back and curate it all after the fact.

It's like the shift from manually saving Word documents to autosave, but instead of forcing it with git, I can use JJ which has been intentionally designed for that workflow.