Drive a real browser through Aside: open a page, read it, click through a flow, take screenshots, check console errors. (gstack)
Install
npx skills add garrytan/gstack --skill browsenpx skills add garrytan/gstack --skill browse -a claude-code -gnpx skills add garrytan/gstack --skill browse -a codex -ggemini skills install https://github.com/garrytan/gstack.git --path browsegh skill install garrytan/gstack browsegit clone --depth 1 https://github.com/garrytan/gstack /tmp/garrytan__gstack
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/garrytan__gstack/browse ~/.claude/skills/browse # Claude Code
cp -R /tmp/garrytan__gstack/browse ~/.agents/skills/browse # Codex, Cursor, Gemini CLI, Copilot, OpenCode