I want to see a graph or flame graph or something akin to how Temporal renders workflows in real-time. I want to follow along as all the different sub-agents and tool calls do their work. I also want to know how much this is costing me at each step.

Just like with a Temporal workflow, I don't care how things work 99% of the time. But that last 1% when I really need to dig in and understand how and where things went sideways this type of view would be invaluable.