A close read of 0xNyk's Council of High Intelligence (Claude Code/Codex/Gemini/OpenCode plugin, 3.9k stars) against Arc's own council-DSL grammar v1. Breaks down which of its mechanisms — epistemic labels (FACT/INFERENCE/ASSUMPTION/UNKNOWN), pre-registered kill criteria, and mechanical premature-agreement/dissent checks — are genuinely portable to any typed multi-agent deliberation format, and which (persona seat-routing) are not. Concrete, borrowable, cites the actual DSL amendment this produced.