Ok, I think I might have misread your first comment. I interpreted it as the Claude Coordinator itself allowing "single-threaded focus".

On a second read, I can see what you actually meant was that the Claude Coordinator helps make multitasking smoother, and if you wanted focus, you can just jump into the individual Claude Code threads instead.

This makes sense and I have been thinking in the same direction for my personal kanban orchestrator. It completes multi-step epic tickets by orchestrating agents and answering their questions, while I can still go interact with individual tickets if I want. The bottleneck is ultimately in the decision-making quality of the coordinator, imo, which limits how much this can actually automate. (Serial runtime is also a big problem)