> "a well written agents.md is very good for the agent"

while even a mildly bad agents.md can be _very_ bad for the agent. they rot very quickly which is why human curation is essential.

same with memory - a lot of the self-learning tools that are becoming popular now degrade agents over time - which is why you end up being able to run an eval with no context and it performs better

> but that's why agentic coding can still be considered a "skill".

yes - far too many cases of throwing a kitchen sink of prompts, skills, tools etc. thinking the llm will sort it out. you need to constantly prune, eval, tweak, observe, update etc. in a loop