```python
import os
from guava import Agent, Runner

agent_a = Agent(name="Grace", purpose="You are a helpful voice agent.")
agent_b = Agent(name="Jordan", purpose="You are a helpful voice agent.")

runner = Runner()
runnner.listen_phone(agent_a, os.environ["GUAVA_AGENT_NUMBER"])
runnner.listen_webrtc(agent_b)
runnner.run()
```

## Runner

`guava.Runner` lets you serve multiple agents in a single process. Each agent can be attached to any number of channels — phone, WebRTC, SIP, or outbound campaigns. Call `run()` to start everything and block until all channels exit.

### Methods

| Name                                   | Type   | Description                                                                                                                                          |
|----------------------------------------|--------|------------------------------------------------------------------------------------------------------------------------------------------------------|
| listen_phone(agent, agent_number)     | Runner | Register an agent to receive inbound calls on the given phone number. Returns self for chaining.                                                    |
| listen_webrtc(agent, webrtc_code=None) | Runner | Register an agent to accept WebRTC connections. A new code is generated if webrtc_code is omitted. Returns self for chaining.                        |
| listen_sip(agent, sip_code)           | Runner | Register an agent to receive inbound SIP calls on the given SIP code. Returns self for chaining.                                                    |
| attach_campaign(agent, campaign)       | Runner | Attach an outbound campaign to an agent. Returns self for chaining.                                                                                   |
| run()                                  | None   | Start all registered channels in daemon threads and block until they all exit.                                                                     |

## [on_action_request() / on_action()](#on-action-request-execute)