DeepSeek Harness

The open AI coding agent where everything is a plugin — this month’s fastest-growing repository.

What it does

DeepSeek Harness (DSH) is an open source harness for AI coding agents. Tools, interfaces, and behaviors are all plugins, which spawned an ecosystem of desktops, markets, and skins within days of launch.

Why it matters

It is the clearest signal yet that AI coding agents are becoming a platform, not a product. Watching DSH’s ecosystem grow is watching a new software category being born in real time.

Who it’s for

Developers who want to extend an agent platform, and anyone studying how open ecosystems out-run closed products.

What you can build with it

A custom plugin that gives the agent your team’s workflow
An internal agent desktop for your company
A case study on ecosystem growth for a business course

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