That’s the point of only producing valid JSON. Someone who wants to build something compatible on top of your tool only needs to understand valid JSON. If they

That’s the point of only producing valid JSON. Someone who wants to build something compatible on top of your tool only needs to understand valid JSON. If they want to build a drop in replacement for your tool sure they need to understand your grammar. Or assuming open source, include your tool as a dependency and run it through that first.