# Two Minute Papers — 'DeepSeek's New AI System Shouldn't Be Possible'

> Two Minute Papers walks through DeepSeek Harness, the open agent framework that treats models, tools and sandboxes as swappable plugins.

- Org: Two Minute Papers
- Date: 2026-08-26
- Category: video
- Source: https://www.youtube.com/watch?v=L9mMfAFwbl4
- Canonical page: https://ai-tldr.dev/releases/two-minute-papers-deepseek-harness-aug26/

## In short

Two Minute Papers covers DeepSeek Harness, the MIT-licensed agent framework where every capability is a plugin. The episode description links the Harness page and the Cordis plugin-system paper the framework is built on.

## What it is

'DeepSeek's New AI System Shouldn't Be Possible' is the August 26 Two Minute Papers episode about DeepSeek Harness. The description points at two sources: the Harness page on deepseek.com and the Cordis paper repository on GitHub. DeepSeek Harness is already in the feed as a release from August 13, 2026.

## How it works

The episode keeps the channel's short-explainer format and draws on DeepSeek's own documentation. Harness is built on the Cordis plugin system and runs on two stated rules — everything is a plugin, and every run is traceable — so models, tools, skills, sessions, sandboxes, storage, loops, scheduling and the UI can each be swapped out. Session logs record every model interaction for later inspection and replay.

## Why it matters

Most agent frameworks make you edit core source code to change how the agent behaves. The plugin-first design in DeepSeek Harness means a team can replace the model or the sandbox without forking the project, and the recorded sessions give a way to see what an agent actually did. Harness is free and open source under the MIT license, and is still in developer preview.

## Who it's for

developers evaluating open agent frameworks

## Try it

npx @deepseek-ai/dsh web

## Links

- [Watch on YouTube](https://www.youtube.com/watch?v=L9mMfAFwbl4)
- [DeepSeek Harness](https://deepseek.com/harness/en/)
- [Cordis Paper](https://github.com/cordiverse/paper)
- [Two Minute Papers](https://www.youtube.com/channel/UCbfYPyITQ-7l4upoX8nvctg)