Turn vague intent into a precise, executable spec in five phases. (gstack)
Install
npx skills add garrytan/gstack --skill specnpx skills add garrytan/gstack --skill spec -a claude-code -gnpx skills add garrytan/gstack --skill spec -a codex -ggemini skills install https://github.com/garrytan/gstack.git --path specgh skill install garrytan/gstack specgit clone --depth 1 https://github.com/garrytan/gstack /tmp/garrytan__gstack
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/garrytan__gstack/spec ~/.claude/skills/spec # Claude Code
cp -R /tmp/garrytan__gstack/spec ~/.agents/skills/spec # Codex, Cursor, Gemini CLI, Copilot, OpenCode