I had to create some workarounds to avoid this bug where they include a "this might not be relevant" preamble to the CLAUDE.MD file: https://github.com/anthropics/claude-code/issues/18560 - I ended up switching to Codex and it just straight up follows the AGENTS.MD instructions, it's nice to see.

This is to say, Anthropic seems to be going down the path you are describing to make the CLAUDE.MD unnecessary. But I think that's the Claude Code harness.

I shouldn't have been so hyperbolic. I do have some general statements about tone and not to go down follow-up question rabbit holes and when to push back or not to install dotnet while on WSL and just go through Windows. Anything that won't change based on day-to-day dev work.