Retro

npx skills add garrytan/gstack --skill retro

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

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

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

gh skill install garrytan/gstack retro

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