---
title: "Formatter / Output · agent building block · Agent Fieldbook"
url: https://agentfieldbook.org/design/building_blocks/formatter/
description: "shapes the final structured response"
section: "Design · Building Blocks · Node"
source: Agent Fieldbook — generated from the published page
---

# Formatter / Output

shapes the final structured response

## What it does

## At a glance

| Field | Value |
| --- | --- |
| Kind | Functional node |
| Example agents | all agents |

## Basis

- [anthropic.com](https://www.anthropic.com/research/building-effective-agents)