# LangChain explains how it built Content Studio, an open-source design agent in Slack

> Original title: How we built Content Studio, an open-source design agent in Slack that makes on-brand videos, graphics and decks, and the harness that po...

- Source: LangChain
- Published: 2026-10-27T16:52:33.000Z
- Bad Influence: https://badinfluence.news/items/dldrohr8vzhygbdzs4e64qfvn
- Original: https://x.com/LangChain/status/2115124503093121121

## Summary

LangChain describes how its GTM Engineering team built Content Studio, a design agent in Slack that produces videos, graphics and slide decks from a single prompt. The post covers encoding the design team's taste into skills and checks, running each Slack thread in its own sandbox with video and image tools, and using asynchronous subagents for long jobs. The harness is open-sourced, and the post says Managed Deep Agents can deploy it to a team's Slack.

## Post

How we built Content Studio, an open-source design agent in Slack that makes on-brand videos, graphics and decks, and the harness that powers it. https://x.com/i/article/2114731014794661888