# DeepSeek is now promoting Creator mode in its open-source DeepSeek Harness agent, which lets you build your own plugins by describing them in chat.

> DeepSeek is promoting Creator mode in its open-source Harness agent, which lets you build plugins by describing them in chat.

Published 2026-11-02T12:25:00-08:00 · News · Canonical: https://news.littlewolflabs.com/posts/2026-11-02-deepseek-creator-mode

DeepSeek put Creator mode front and center on Monday ([DeepSeek Harness on X](https://x.com/DeepSeekHarness/status/2117256196227019194)). DeepSeek Harness is its open-source agent app, which runs in your browser on your own computer. The launch post says Creator mode lets you "turn ideas into plugins that you can use, from a design workspace to a sandbox game or a 3D LLM visualizer." DeepSeek's product page says you can "install plugins, or create them through chat in 'Creator mode', to extend tools, skills, and the interface" ([DeepSeek Harness page](https://www.deepseek.com/en/harness/)). The docs add that plugins you set up belong to your current profile and stay in place after a restart ([Harness docs](https://deepseek-harness.github.io/deepseek-harness/en/develop/practice/dynamic-cordis)). [Bloomberg](https://www.bloomberg.com/news/articles/2026-11-02/deepseek-boosts-ai-agent-offering-with-new-creator-mode) reports that DeepSeek showed off examples like 3D model generation and a video-editing workbench built from plain-English prompts. [Quartz](https://qz.com/deepseek-creator-mode-custom-ai-plugins-110226) notes it's mostly aimed at developers for now. Creator mode isn't brand-new code. It has been in the project's public code since late September, and Monday is the push to get people using it. The project is MIT-licensed and still a "developer preview." The README warns "THERE WILL BE COMPATIBILITY-BREAKING CHANGES" ([GitHub](https://github.com/deepseek-ai/deepseek-harness)). Its safety notice says it "has not undergone a security audit." It also says untrusted plugins or bad model output "may damage the host computer, modify or delete files, disclose data or credentials" ([SAFETY.md](https://github.com/deepseek-ai/deepseek-harness/blob/master/SAFETY.md)).

*Try it:* if you have Node.js, `npx @deepseek-ai/dsh web` starts it in your browser. Follow DeepSeek's own advice and run it in a spare virtual machine or container, keep backups, and read any plugin before you let it run. Treat it as a playground for now. Plugins you build today may break with the next update.