I am using a literate programming project I built (https://github.com/adam-ard/organic-markdown) and I have an AGENTS.md file that looks like this:
"All the work we do on this project should utilize the organic-markdown literate style that you see explained/demonstrated in the `organic-markdown` project: https://github.com/adam-ard/organic-markdown
Some guidelines for how you should utilize organic-markdown literate programming..."
Then I list a bunch of conventions for making literate code the way I like it.