> Fetch clean Markdown by appending `.md` to any page URL under https://signalwire.com/docs or requesting it with the HTTP header `Accept: text/markdown`. The root index at https://signalwire.com/docs/llms.txt lists the available documentation indexes.

# addSubsection

> Add a subsection to an existing section.

[ref-pombuilder]: /docs/server-sdks/reference/typescript/agents/pom-builder

Add a subsection to an existing section. If the parent section does not exist,
it is created automatically.

## **Parameters**

**`parentTitle`** `string` — required

Title of the parent section.

---

**`title`** `string` — required

Subsection title.

---

**`opts`** `object`

Optional subsection content.

---

**`opts.body`** `string`

Subsection body text.

---

**`opts.bullets`** `string[]`

Bullet points for the subsection.

---

## **Returns**

[`PomBuilder`][ref-pombuilder] -- Self for method chaining.

## **Example**

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

const pom = new PomBuilder();
pom.addSection('Role', { body: 'You are a helpful assistant.' });
pom.addSubsection('Role', 'Tone', { body: 'Use a friendly, professional tone.' });
```

> Add a subsection to an existing section.