Audit website performance. Use for Core Web Vitals, LCP, INP, CLS, Lighthouse or browser performance checks, bundle and asset weight, image/video loading, font loading, third-party scripts, animation cost, hydration cost, and production-readiness performance review.
Use when Codex needs premium visual inspiration sources, website galleries, studio references, product-site references, motion references, UI examples, luxury/editorial/Squarespace/Raycast/Linear/Vercel-level references, or a non-generic reference set before designing a website.
Premium website pre-build gate for cinematic, editorial, Squarespace-polished, Raycast/Linear/Vercel-precise, or motion-heavy web work. Use before implementing or redesigning a homepage, landing page, portfolio, product site, agency/studio site, or high-polish web app when the user wants non-generic visual quality…
Use Radix Primitives for accessible custom React UI. Use for dialogs, dropdown menus, popovers, tooltips, tabs, accordions, switches, sliders, radio groups, checkboxes, select menus, navigation menus, focus management, keyboard interactions, and unstyled primitives that need premium custom styling.
Craft polished React components for websites and apps. Use for reusable sections, UI primitives, composition, props, state, responsive behavior, interaction states, accessibility, and avoiding monolithic or brittle frontend implementations.
Design and implement React loading, error, empty, offline, retry, not-found, Suspense, skeleton, and route-boundary states. Use when a website or app needs polished fallbacks for data fetching, async UI, lists, forms, dashboards, product pages, commerce, portfolios, or Next.js route files.
Implement polished React form patterns. Use for contact forms, lead forms, booking forms, waitlists, checkout steps, newsletter signup, controlled or uncontrolled fields, validation, labels, errors, loading, success states, server actions, autocomplete, accessibility, and conversion-focused form UX.
Build responsive React components and sections for premium websites. Use when components need mobile, tablet, desktop, container-query, CSS-grid, flex, aspect-ratio, text-fit, overflow, media-crop, navigation, dashboard density, or responsive interaction behavior.
Discipline React state, derived data, effects, refs, reducers, context, and event handlers. Use when components have duplicated state, unnecessary useEffect, prop-to-state syncing, stale closures, event logic in effects, external subscriptions, DOM integration, network sync, or complex UI state.