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.
Related Articles
GPT 5.6 Is Here: Codex Becomes ChatGPT
GPT 5.6 has arrived, and Codex has been upgraded into ChatGPT. A first look at the unified app, manual code editing, and the Luna, Terra, and Sol variants.
AI UI Designer: How to Quickly Figure Out What Your Product Looks Like
Many people use AI UI Designer not for designing UI interfaces, but for exploring the product they want to build. Throw your fuzzy product ideas at AI, let it plan pages, organize workflows, and generate prototypes — turning vague concepts into clear visuals.
EaseChart: A Free Flowchart Editor with a Paid AI Agent
EaseChart combines a free flowchart editor with a paid AI Agent. This post explores how the 'free tool, pay-per-use AI' model is changing the traditional software monetization logic.