Nope, not based on vibekit, but it looks like a cool project!

Our approach is a bit more custom and deeply integrated with the coding agents (ex: we understand when the turn has finished and can snapshot the docker container, allowing rollbacks, etc)

We do also have a terminal though, so if you really wanted, I suppose you could run any text-based agent in there (although I've never tried that). Maybe we'll add better support for that as a feature someday :)

nope but vibekit looks interesting -- will take a look

It might be possible to ask claude to write a claude code hook to take a docker snapshot after each finished answer with vibekit to avoid deeply integrating with another third party.