Frontend Tools Setup - Copilotkit

<Steps> <Step> ### Install the ADK + AG-UI bridge

```bash
pip install ag-ui-adk
```

</Step> <Step> ### Add `AGUIToolset()` to your agent

`AGUIToolset()` is the tool that exposes CopilotKit's frontend-tool
channel to the model — drop it into your `LlmAgent`'s `tools=` list and
frontend tools become available on every turn. Pair it with
`stop_on_terminal_text` as the `after_model_callback` so CopilotKit's UI
knows when the agent has finished its turn.

<DemoCode file="src/agents/hitl_in_chat_agent.py" region="setup" />

</Step> </Steps>