Nice work! Built something in the same space — Levitation (https://levitation.studio). Different approach: web dashboard instead of Discord, and LanguageServer protocol instead of Chrome DevTools.

So you get a full UI for managing multiple agents replicating the Agents Manager interface of Antigravity. And it is also opensource but you can use the server i'm running and set it up in 30 secs following the instructions in https://levitation.studio