❯ DeepSeek showcases Harness Creator Mode for building reusable plugins through chat

Requests become working toolsDeepSeek Harness showcased Creator Mode on November 2 and released seven sets of demonstration prompts in Chinese and English. The Paper reports examples including design workspaces, sandbox games and three-dimensional model visualizers. Users describe their requirements in chat to create tools and interfaces inside Harness.

Plugins persist beyond a conversationDeepSeek’s product page describes Harness as an open-source agent application in worldwide public preview, built around an everything-is-a-plugin architecture. Users can install existing plugins or ask the agent to write, install and inspect new ones in Creator Mode. A floating Pomodoro timer demonstrates building a tool and then adjusting its interface.

Workflows become customizableHarness offers a desktop application and a web interface launched from code. It handles files, data analysis, documents, slides, coding and background tasks. Plugins turn a conversational request into a reusable feature and extend tools, skills and interfaces. The product and its core plugins remain under active preview development.

▮ SIGNALGenerated results can persist as reusable tools, allowing users to accumulate agent capabilities suited to their own work.