Pre commit hooks are complicated because jj just has a fundamentally different lifecycle than git does.

Tools that integrate with git specifically can be tough though, yeah. Some do Just Work, and some very much do not.

I’ve found a “we use jj not git for this project” in Claude.md makes falling back to git rare, but I also tend to incorporate version control into slash commands or skills directly rather than let Claude decide what to do.

Yeah, in an ideal world we'd have "save hooks" but that would probably be much too computationally expensive in some cases.

I also prefer to manage version management myself directly, even with llm-gen'd CICD elements, so preferring jj hasn't been nearly as costly for me specifically :D