Structured multi-round debate between AI tools with proposer / challenger roles and a final verdict. `/debate` orchestrates a back-and-forth between two AI CLIs (Gemini, Codex, Claude Code, OpenCode, Copilot, Kiro) on a design decision, technical question, or contested approach. Each round, one tool proposes / defends and the other challenges; the orchestrator synthesizes the disagreement and renders a verdict with reasoning. Surfaces blind spots that single-tool consultation misses, especially on architectural decisions where two strong arguments exist. Programmatic entry point — other agents and workflows can spawn a debate via Task() to break a tie.