I described my experience using Claude Code Web to vibe-code a language interpreter here [0], with a link to the closed PRs [1].

As it turns out, you don't really need to "save the state"; with decent-enough code and documentation (both of which the LLM can write), it can figure out what needs to be done and go from there. This is obviously not perfect - and a human developer with a working memory could get to the problem faster - but its reorientation process is fast enough that you generally don't have to worry about it.

[0]: https://news.ycombinator.com/item?id=46005813 [1]: https://github.com/philpax/perchance-interpreter/pulls?q=is%...