I can't.see myself specifying 60 bits of work to work on in parallel. So I guess you're doing some kind of task decomposition.

But I'm not convinced that this is that much more efficient, given the complexity of the coordination overhead.

E.g. in my mental model, 3 big tasks takes about the same amount of time as 60 small tasks after planning and coordination.

What's your experience?

Edit: and all the harnesses do subagents pretty well now anyway, so dynamic parallelism when you need it.