---
title: 'Multi-Agents: What''s Actually Working'
link: https://cognition.com/blog/multi-agents-working
source: cognition
published: 2026-04-22T00:00:00Z
first_seen: 2026-09-02T14:07:29.769486161Z
summary: 10 months ago I argued against building multi-agent systems. Today, a narrower class works, where agents contribute intelligence while writes stay single-threaded. I want to share what we've learned building them at Cognition.
---

10 months ago I argued against building multi-agent systems. Today, a narrower class works, where agents contribute intelligence while writes stay single-threaded. I want to share what we've learned building them at Cognition.