<InstallPythonSDK />
Sub-agents are wired as tools on a supervisor `create_agent` call. The
supervisor's middleware list includes `CopilotKitMiddleware()` so the
delegation log slot streams back to the UI through shared state.
<DemoCode file="src/agents/subagents.py" region="subagent-setup" />
See `src/agents/subagents.py` for the canonical supervisor + three
sub-agents pattern with a live delegation log.