Why would I care? I write libraries to help humans write code. If an LLM was actually good at writing code, it would engage with the library in the same way as a human. If it can't, that's not a problem with the library. I don't lose anything if an LLM doesn't use a library I've written.

Perhaps you shouldn't care, although I find this to be a short-sighted perspective.

Agents are users now, and agent-friendly docs and libraries will be standard practice for the tools that want to thrive through broader industry adoption.

Similarly, perhaps you wouldn't care if your website wasn't easily parsable by crawlers, but if you'd like your work to appear in search results you might like to include a sitemap or structure the HTML a little.

I couldn't agree more. I don't want my code included in crappy vibe coded software.