Comment by verdverm

I wrote one yesterday, but what goes in them has changed. Now I only put what amounts to a table of contents and some highlights of important things. Other info goes in other markdown, either localized agents.md or a directory of references. Skills are useful too

Anthropic has a new post series on enterprise adoption, their first one is on the setup and AGENTS.md gets a good chunk of that

I now have agents write more of that stuff but deeply review it. As peer commenter points out, a bad instruction can do damage. Keep them lean and clean, adjust them as new models arrive.