[scuff3d]

Yeah I agree that it's not copy/pasted the way a dev would, but I think the end result is the same. The more it needlessly duplicates code, the more brittle things will become. Changes will get harder and harder to implement as the number of sites that have to change increases.

On the other hand, I think driving down the need for external dependencies can be a net win. In my experience you usually need a very tiny slice of what a dependency actually offers, and often you settle for making design compromises to fit the dependency into your system, because the cost of writing it yourself is too high. LLMs definitely change that calculus.

I've found agent.md files are more a bandaid then anything. I've seen agents routinely ignore/forget them, and the larger the code base/number of changes they're making the more frequently they forget.