---
title: "Assembly-line role pipeline · agent topology · Agent Fieldbook"
url: https://agentfieldbook.org/design/topologies/assembly-line/
description: "Named role-stages pass a growing artefact along a strict linear pipeline. Each stage owns one phase (analyst → architect → engineer → QA), reads what the previous stage produced, and adds its own contribution before handing off. The SOP is the topology."
section: "Design · Topologies"
source: Agent Fieldbook — generated from the published page
---

# Assembly-line role pipeline

Named role-stages pass a growing artefact along a strict linear pipeline. Each stage owns one phase (analyst → architect → engineer → QA), reads what the previous stage produced, and adds its own contribution before handing off. The SOP is the topology.

Verified against [arxiv.org](https://arxiv.org/abs/2308.00352)

- [arxiv.org](https://arxiv.org/abs/2308.00352)

## At a glance

| Field | Value |
| --- | --- |
| Pattern | Assembly-line role pipeline |
| State model | workspace |
| Example | MetaGPT, Hong et al. ICLR 2024 |

## Basis

## Verified against

- [https://arxiv.org/abs/2308.00352](https://arxiv.org/abs/2308.00352)

The corpus does not rewrite vendor documentation. Where copy is quoted verbatim it is marked as such and attributed to its source.