Optimize web performance through network protocols, resource loading, and browser rendering internals. Use when the user mentions "my site is slow", "Core Web Vitals", "HTTP/2 or HTTP/3", "resource hints", "network latency", "render blocking", "TCP/TLS optimization", "service worker", "Cache-Control or caching strategy", or "critical rendering path".
Install
npx skills add wondelai/skills --skill high-perf-browsernpx skills add wondelai/skills --skill high-perf-browser -a claude-code -gnpx skills add wondelai/skills --skill high-perf-browser -a codex -ggemini skills install https://github.com/wondelai/skills.git --path high-perf-browsergh skill install wondelai/skills high-perf-browsergit clone --depth 1 https://github.com/wondelai/skills /tmp/wondelai__skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/wondelai__skills/high-perf-browser ~/.claude/skills/high-perf-browser # Claude Code
cp -R /tmp/wondelai__skills/high-perf-browser ~/.agents/skills/high-perf-browser # Codex, Cursor, Gemini CLI, Copilot, OpenCode