Adversarial brainstorming. Claude and Codex independently research then debate until Nash equilibrium. For solution exploration, feasibility analysis, exhaustive enumeration.
Install
npx skills add sd0xdev/sd0x-harness --skill codex-brainstormnpx skills add sd0xdev/sd0x-harness --skill codex-brainstorm -a claude-code -gnpx skills add sd0xdev/sd0x-harness --skill codex-brainstorm -a codex -ggemini skills install https://github.com/sd0xdev/sd0x-harness.git --path skills/codex-brainstormgh skill install sd0xdev/sd0x-harness codex-brainstormgit clone --depth 1 https://github.com/sd0xdev/sd0x-harness /tmp/sd0xdev__sd0x-harness
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/sd0xdev__sd0x-harness/skills/codex-brainstorm ~/.claude/skills/codex-brainstorm # Claude Code
cp -R /tmp/sd0xdev__sd0x-harness/skills/codex-brainstorm ~/.agents/skills/codex-brainstorm # Codex, Cursor, Gemini CLI, Copilot, OpenCode