Agent Config Setup - Copilotkit

<Steps> <Step> ### Make runtime configuration explicit

The Claude Agent SDK demo reads configuration from shared state and folds it
into the system prompt. This keeps the agent behavior visible to the UI and
lets users tune model behavior without rebuilding the backend.

<DemoCode file="src/agents/agent_config_agent.py" region="agent-config-setup" />

</Step> </Steps>