Multi-agent orchestration harness for Claude Code. Adds 11 specialized agents (Steel orchestrates, Mercury searches, Tungsten executes), 11 automatic hooks (typecheck, lint, branch protection, write guard, AI slop detection), 8 skills, and 10 slash commands. Agents are tiered by model — Opus for orchestration and judgment, Sonnet for implementation and research, Haiku for fast search. One command to activate globally, one command to revert. Preserves existing Claude Code settings.