Comment by ljm

I've tried both and that sounds about right - I had to configure my MCPs for it again and it runs its own server in the background.

For that alone I've preferred agent-shell since you just use the agent's own config. That's already enough of a pain point when each agent has its own config format and location, as well as the differences between project and user level config - would be nice if there was a standard for that at some point too.