Show HN: Mysti – Claude, Codex, and Gemini debate your code, then synthesize

Mysti drops into the scene promising a wild twist: let two AI assistants debate your code and merge the best answer. It lives in VSCode (a popular code editor), lets you pick Claude, Codex, or Gemini, and even run Brainstorm Mode so two bots argue before giving you one polished fix. Cue the comment chaos. The loudest chorus: “Why lock it to VSCode?” Critics like mlrtime want a CLI (command-line) option, insisting most power users live in the terminal. Terminal fans didn’t just complain—they hustled. One commenter, tiku, patched together a workaround using Claude with Google’s Gemini via consult-llm-mcp, basically DIY’ing their own command-line version.

Meanwhile, the pro-multi‑agent squad showed up strong. Tarrosion says Claude and Gemini catch different mistakes at work and wants both in one lane—as long as security signs off. Another voice shrugged off the “niche” worry, calling it a “yes or yes” win even if it just helps the creator. Elsewhere, someone compared it to eye2.ai, but for coding, suggesting the “AI sparring partners” concept is bigger than one app. Between the VSCode vs terminal turf war, security worries, and the giddy thought of two robots bickering like senior devs, Mysti’s rollout turned into a full-on forum soap opera—with plenty of hype for those two AIs, one answer vibes.