DeepSeek adds Creator Mode to Harness AI agent platform

DeepSeek has added a chat-based Creator Mode to its open-source Harness agent platform, enabling users to build and extend plugins directly within the agent. The company positions Harness as a global public preview with an evolving plugin ecosystem.

By Daniel Rowe

November 2, 2026 at 1:02 PM EST2 min read

Key takeaways (3)

1.DeepSeek’s Harness page says users can create plugins through chat in a new Creator Mode.
2.Bloomberg reports the feature is intended to bolster DeepSeek’s AI agent offerings with custom plugins.
3.Harness is described as an open-source agent platform in public preview with an evolving plugin ecosystem.

Key takeaways (3)

1.DeepSeek’s Harness page says users can create plugins through chat in a new Creator Mode.
2.Bloomberg reports the feature is intended to bolster DeepSeek’s AI agent offerings with custom plugins.
3.Harness is described as an open-source agent platform in public preview with an evolving plugin ecosystem.

By Daniel Rowe, Policy Correspondent (Policy, Law & Geopolitics)

DeepSeek has introduced a Creator Mode for its Harness agent platform that allows users to build custom plugins through chat, according to a company product page and secondary reports dated early November 2026.

The addition matters because it shifts more control over AI agent behavior to end users and developers, who can now generate new tools as plugins inside the Harness environment without leaving the chat interface.

On its Harness product page, DeepSeek describes Harness as an open-source agent "built on Cordis's 'everything is a plugin' architecture" and states that users can "install plugins, or create them through chat in 'Creator mode', to extend tools, skills, and the interface".DeepSeek 1 The page says Harness is "now in public preview worldwide" with "composable plugins that extend what agents can do" and invites "users and developers worldwide" to participate in an evolving plugin ecosystem.DeepSeek 1

Bloomberg Technology 2 reported on November 2, 2026, that DeepSeek had unveiled a new option to quickly create custom plugins to tackle a range of complex tasks, describing the move as a step to bolster the company’s AI agent offerings. PANews said on November 3 that DeepSeek Harness announced the launch of Creator Mode in a post on X, and that the feature "lets users turn ideas into ready-to-use plugins", citing examples including a design workspace, a sandbox game and a 3D LLM visualization tool.PANews 3

The Harness page lists several categories of work that agents can perform, including organizing files, analyzing data, drafting documents and slides, fixing bugs, building features, running tests, research tasks such as finding facts and citing sources, and background tasks like running scripts and tracking progress.DeepSeek 1 It states that users can start tasks anytime, run recurring work on a schedule and inspect tool call details, and that developer tools allow inspection of execution traces and detailed runtime information.DeepSeek 1

For developers, DeepSeek says the web interface can be launched with Node.js using npx, or installed from source by cloning the repository, and that Harness's core plugins and APIs are "evolving" as part of a preview-phase plugin ecosystem.DeepSeek 1 The available documents do not specify a precise launch date for Creator Mode, pricing, or any access restrictions beyond describing Harness as in public preview worldwide.

Sources3 documents

1. deepseek.com

deepseek.com/en/harness/

6 checked claims

2. bloomberg.com

bloomberg.com/news/articles/2026-11-02/deepseek-boosts-ai-agent-offering-with-new-creator-mode

1 checked claim

3. panews.io

panews.io/articles/01a19d57-6ab1-7345-934a-c0d1eb79d628

1 checked claim

Citations link to the documents this article draws on; they do not imply independent corroboration.

OpenAI hires former Army Secretary Dan Driscoll as national security adviser

OpenAI has created a senior national security counselor role and appointed former US Army Secretary Dan Driscoll to fill it. The company says he will guide how advanced AI is used in national and cyber security with allied governments.

Daniel Rowe · about 20 hours ago

Anthropic lists eight firms for Australian retail offer

Anthropic has formally named eight intermediaries, including Macquarie and CommSec, to handle access to its proposed Australian retail offer. The issuer guidance ties those firms into a broader international retail distribution plan for its planned Nasdaq IPO.

Daniel Rowe · about 22 hours ago

OpenAI launches Grid Protectors plan with 1GW Georgia pilot

The company is positioning its future "compute campuses" as grid resources rather than pure load, promising to lower power use or supply electricity when systems are strained in regions that have become wary of energy‑intensive data centers.

Daniel Rowe · 1 day ago