Codex

npx skills add garrytan/gstack --skill codex

npx skills add garrytan/gstack --skill codex -a claude-code -g

npx skills add garrytan/gstack --skill codex -a codex -g

gemini skills install https://github.com/garrytan/gstack.git --path codex

gh skill install garrytan/gstack codex

git clone --depth 1 https://github.com/garrytan/gstack /tmp/garrytan__gstack
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/garrytan__gstack/codex ~/.claude/skills/codex   # Claude Code
cp -R /tmp/garrytan__gstack/codex ~/.agents/skills/codex   # Codex, Cursor, Gemini CLI, Copilot, OpenCode