It's not about instructions, it's about discoverability and data.

Yeah, WWW is really just text but that doesn't mean you don't need HTTP + HTML and a browser/search engine. Skills is just that, but for agent capabilities.

Long term you're right though, agents will fetch this all themselves. And at some point they will not be our agents at all.

I guess what I mean is that standardizing this bit of the problem right now feels sort of like XHTML. Many people thought that was a big deal back in the day, but it turned out to be a pointless digression.

Long term you're right though, agents will fetch this all themselves

It's not "long term", it's right now. If your docs are well-written and well-organised, agents can already use them. The most you might need to do is copy your README.md into CLAUDE.md.