Performance optimization, accessibility, and security best practices for React apps. Covers code-splitting, React Compiler patterns, asset optimization, a11y testing, and security hardening. Use when optimizing performance or reviewing security.
Install
npx skills add MadAppGang/claude-code --skill performance-securitynpx skills add MadAppGang/claude-code --skill performance-security -a claude-code -gnpx skills add MadAppGang/claude-code --skill performance-security -a codex -ggemini skills install https://github.com/MadAppGang/claude-code.git --path plugins/frontend/skills/performance-securitygh skill install MadAppGang/claude-code performance-securitygit clone --depth 1 https://github.com/MadAppGang/claude-code /tmp/MadAppGang__claude-code
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/MadAppGang__claude-code/plugins/frontend/skills/performance-security ~/.claude/skills/performance-security # Claude Code
cp -R /tmp/MadAppGang__claude-code/plugins/frontend/skills/performance-security ~/.agents/skills/performance-security # Codex, Cursor, Gemini CLI, Copilot, OpenCode