***

title: addSystemSection
slug: /reference/typescript/agents/context-builder/context/add-system-section
description: Add a POM section to the system prompt.
max-toc-depth: 3
---------------------

For a complete index of all SignalWire documentation pages, fetch https://signalwire.com/docs/llms.txt

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

Add a POM section to the system prompt. Cannot be combined with `setSystemPrompt()`.

## **Parameters**

<ParamField path="title" type="string" required={true} toc={true}>
  Section heading.
</ParamField>

<ParamField path="body" type="string" required={true} toc={true}>
  Section body text.
</ParamField>

## **Returns**

[`Context`][ref-context] -- Self for method chaining.

## **Example**

```typescript {7-8}
import { ContextBuilder } from '@signalwire/sdk';

const builder = new ContextBuilder();
builder.addContext('default').addStep('menu').setText('Ask what the caller needs.');

const billing = builder.addContext('billing');
billing.addSystemSection('Role', 'You are a billing specialist.');
billing.addSystemSection('Tone', 'Be professional and empathetic.');
billing.addStep('review').setText('Review the caller\'s account and recent charges.');
```