Ask HN: We need a standard way to declare how much AI was used in a PR

There's a big difference between these situations:

- a PR that is quickly drafted by LLM based on a prompt

- a careful spec designed by humans, worked on by AI

- a feature built with a dev and LLM closely working together, with code reviews

- a feature with parts fixed up by AI, but 90% human written

- human written, checked with AI

etc

Is anyone moving towards a standard way of describing this? I'd love something that can go at the bottom of an communication / PR / proposal.