---
title: "Human-in-the-loop · agent building block · Agent Fieldbook"
url: https://agentfieldbook.org/design/building_blocks/hitl/
description: "pauses for human approval"
section: "Design · Building Blocks · Node"
source: Agent Fieldbook — generated from the published page
---

# Human-in-the-loop

pauses for human approval

## What it does

## At a glance

| Field | Value |
| --- | --- |
| Kind | Functional node |
| Example agents | high-stakes enterprise agents |

## Basis

- [langchain-ai.github.io](https://langchain-ai.github.io/langgraph/concepts/human_in_the_loop/)