Why AI Output Gets Worse the More You Edit It (and How to Fix It)

A common observation: AI-generated content looks decent on the first pass, but ask the model to revise it and the result often turns into a mess. Why? Two AI assistants were asked to explain. Their answers are reproduced below. DeepSeek’s explanation [1] The phenomenon is widespread enough that the industry even has a phrase for it: “the more you edit AI copy, the worse it gets.” The cause is not a single factor but a stack of several mechanisms: ...

October 21, 2026 · 6 min · Nick Yam

DeepSeek's Harness Made Me Uninstall Codex

Here is what happened. On the evening of August 14, I was scrolling on my phone when I saw DeepSeek had shipped something new called Harness. Normally I am immune to “framework” releases — everybody ships a framework these days, each name more intimidating than the last. But I clicked in, and one slogan jumped out at me: Everything is a Plugin. I thought about it for a second. There is something to that phrase. I installed it that same night. ...

August 17, 2026 · 9 min · Nick Yam

Frankly, DeepSeek Harness Is Not an Agent Product at All

Last week, right after the official release of DeepSeek V4 Pro, they threw out something else called DeepSeek Harness. Its GitHub stars shot to 37,000 in three days. My first reaction was: DeepSeek is finally shipping its own Agent? I installed the developer preview immediately. Once it was installed, I was lost — this was nothing like what I imagined an Agent to be. There is no chat box where you say “write me a crawler.” Instead there is an empty workspace and a long list of plugins I could not make sense of. For a moment I suspected I had installed the wrong thing. ...

August 12, 2026 · 9 min · Nick Yam