I’ve been using DeepSeek Harness every day for the past few days.
Before this, my way of using DeepSeek was through Claude Code. Comparing the two, I’m deeply impressed — DeepSeek’s own Agent paired with its own model just works better.
To be honest, DeepSeek Harness caught me by surprise. I always assumed it would become the next Codex or the next Claude Code. But when I actually saw DeepSeek Harness, I was pleasantly surprised. It’s easy to use, it has a plugin system, and — most importantly — it’s open source, and it can be fully customized into all kinds of dedicated Agent products!
DeepSeek Harness is still far from mature, but you can already foresee that as it matures, a flood of plugins will appear, along with many Agent products built on top of it — whether they are web products or client products customized and packaged from it.
独立产品人日记
Notes on indie products, AI tools, growth, and engineering.
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