Here’s a pre-DRAFT of a FEP describing the machine-readable implementation report (by @helge): fep/fep/aaa3/fep-aaa3.md at e1b2a16707b542ea5ea0cfb390ac1abce89f05bb - helge/fep - Codeberg.org. I think this is a good idea, though I’m not sure about the best place for such report: instance actor or NodeInfo metadata.
Anyway, it would be better to focus on human-readable documentation in FEP-67ff. We have 12 implementations already, so I’m inclined to finalize proposal in its current form.