DeepSeek is promoting Creator Mode, that lets its open-source Harness agent build working plugins from plain-language requests.

Creator Mode is a setting inside DeepSeek Harness, DeepSeek’s free AI agent app, where you describe a tool you want (say, a timer or a video-editing panel) and the AI writes, installs and tests it as a new add-on inside the app.
The feature has existed since August; today DeepSeek released a demo video and the prompts behind its 7 examples.

Harness’s 268.7K GitHub stars supply potential plugin builders, yet the ecosystem grows only if generated plugins work beyond curated demos.

https://x.com/DeepSeekHarness/status/2117256196227019194/video/1