I don't really mind hopping between claude/codex/glm/kimi except I don't know a good way to resume as session across agent harnesses.

Normally I'd just have it write out what it's doing to a file, if I need to transfer context, but if it goes down mid-session that's a no-go.

I think people have built tools for this, and of course you could reasonably vibe one yourself, but I don't really trust something like that to work reliably or in an ongoing manner.

Maybe it should just be a skill.