Tests in real browsers. Use when building or debugging anything that runs in a browser. Use when you need to inspect the DOM, capture console errors, analyze network requests, profile performance, or verify visual output with real runtime data via Chrome DevTools MCP.
Install
npx skills add addyosmani/agent-skills --skill browser-testing-with-devtoolsnpx skills add addyosmani/agent-skills --skill browser-testing-with-devtools -a claude-code -gnpx skills add addyosmani/agent-skills --skill browser-testing-with-devtools -a codex -ggemini skills install https://github.com/addyosmani/agent-skills.git --path skills/browser-testing-with-devtoolsgh skill install addyosmani/agent-skills browser-testing-with-devtoolsgit clone --depth 1 https://github.com/addyosmani/agent-skills /tmp/addyosmani__agent-skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/addyosmani__agent-skills/skills/browser-testing-with-devtools ~/.claude/skills/browser-testing-with-devtools # Claude Code
cp -R /tmp/addyosmani__agent-skills/skills/browser-testing-with-devtools ~/.agents/skills/browser-testing-with-devtools # Codex, Cursor, Gemini CLI, Copilot, OpenCode