Launch GStack Browser — AI-controlled Chromium with the sidebar extension baked in.
Install
npx skills add garrytan/gstack --skill open-gstack-browsernpx skills add garrytan/gstack --skill open-gstack-browser -a claude-code -gnpx skills add garrytan/gstack --skill open-gstack-browser -a codex -ggemini skills install https://github.com/garrytan/gstack.git --path open-gstack-browsergh skill install garrytan/gstack open-gstack-browsergit clone --depth 1 https://github.com/garrytan/gstack /tmp/garrytan__gstack
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/garrytan__gstack/open-gstack-browser ~/.claude/skills/open-gstack-browser # Claude Code
cp -R /tmp/garrytan__gstack/open-gstack-browser ~/.agents/skills/open-gstack-browser # Codex, Cursor, Gemini CLI, Copilot, OpenCode