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# addPreAnswerVerb

> Add a SWML verb to run before the call is answered.

[swml-reference]: /docs/swml/reference

[ref-agentbase]: /docs/server-sdks/reference/typescript/agents/agent-base

Add a verb to run before the call is answered (phase 1). Pre-answer verbs execute
while the call is still ringing.

> **Warning**
>
> Only certain verbs are safe before answering. The platform may ignore or
> reject verbs that require an active media session. Verbs with `auto_answer`
> capability (like `play` and `connect`) must include `"auto_answer": false` in
> their config to prevent automatic answering.

Safe pre-answer verbs: `transfer`, `execute`, `return`, `label`, `goto`, `request`,
`switch`, `cond`, `if`, `eval`, `set`, `unset`, `hangup`, `send_sms`, `sleep`,
`stop_record_call`, `stop_denoise`, `stop_tap`.

## **Parameters**

**`verbName`** `string` — required

SWML verb name (e.g., `"play"`, `"sleep"`, `"request"`).

---

**`config`** `Record<string, unknown>` — required

Verb configuration object. See the
[SWML reference][swml-reference] for verb-specific parameters.

---

## **Returns**

[`AgentBase`][ref-agentbase] -- Returns `this` for method chaining.

## **Example**

```typescript {5}
import { AgentBase } from '@signalwire/sdk';

const agent = new AgentBase({ name: 'support', route: '/support' });
agent.setPromptText('You are a helpful assistant.');
agent.addPreAnswerVerb('play', {
  urls: ['ring:us'],
  auto_answer: false,
});
await agent.serve();
```

> Add a SWML verb to run before the call is answered.