wtf is frontend_standard_skills?

Frontend Standard Skills is a collection of installable rule sets that push AI coding tools like Claude Code and Cursor to write frontend code that is accessible, fast, and consistent by default, without you having to ask each time. Point it at your project and it installs an opinionated, enforceable rule file covering accessibility standards, support for visually impaired users, page loading speed targets known as Core Web Vitals, reusable component design, consistent user interface patterns, and general code quality habits like clear naming and up to date documentation. The rules are organized by frontend framework, so you install only the one you need. Supported stacks include plain HTML and CSS, React, Next.js, Nuxt, Astro, Angular, Vue.js, and Svelte, plus a framework-agnostic core standards set that every other stack builds on top of. Each stack is packaged as a self-contained Claude Skill with its own documentation and a ready-to-install rules file, and installing just one stack still gives you a complete rule set because it automatically extends the shared core. There are four ways to install it. A command line tool run through npx, pnpm, or yarn can add one stack, several stacks, or all of them, and writes the rules into formats read by Claude Code, Cursor, and any tool that follows the CLAUDE.md or AGENTS.md conventions. Running the install command again for the same stack updates its section instead of duplicating it. Claude Code users can also install directly through the plugin marketplace, or copy a skill folder manually into their project with no install step at all, or install a global npm package that adds a short command line alias. The rules themselves specify concrete, testable targets: page load and interaction speed thresholds checked against pagespeed.web.dev and enforced through Lighthouse in continuous integration, consistent keyboard accessibility and color contrast requirements, and guidance against duplicated code and oversized files. Each stack's deeper reference material includes side by side examples of code that follows the standard and code that does not. The project is released under the MIT license.