A supervisor plans, delegates, and replans — for real.

Pick a goal below. A LangGraph supervisor breaks it into a dependency-ordered plan, fans it out to specialist subagents, and streams every step here as it happens — including a real fact (a confirmed time, an address) flowing from one agent’s output into the next agent’s instructions. Once it finishes, tell it something went wrong and watch it replan: steps that are still valid are kept, only the ones the disruption actually invalidates get re-run.