I do the same with Gemini. I have a skill that teaches any AI to use the antigravity cli (agy) to communicate with Gemini and ask to review or check decisions
> We expect that agents coordinating in the wild will act in higher variance ways than we see here, because they’ll have different backgrounds and therefore different contexts. They also, presumably, won’t all be Claudes.
Claude chat itself called it 'Claude-on-Claude action', which I found cute.