May I suggest creating a JSON Schema for the yaml files, so reasonable editors can help complete the structure?
I didn't study the docs to know how much this is on the "ansible" side of things, where conditions can be almost anything, and thus describing possible legal values would be some monster work
I didn't study the docs to know how much this is on the "ansible" side of things, where conditions can be almost anything, and thus describing possible legal values would be some monster work