Mui

Use when the user is implementing, embedding, or debugging a WorkOS Widget — specifically the User Management, User Profile, Admin Portal SSO Connection, or Admin Portal Domain Verification widgets. Handles the full stack — detecting the frontend (Next.js, React, React Router, TanStack Start, Vite, SvelteKit), generating access tokens via the backend SDK in use (Node, Python, Go, Ruby, PHP, Java, .NET), and wiring up the widget component correctly per the bundled OpenAPI spec. Also use when code imports from @workos-inc/widgets or the user pastes <UserManagement /> or <UserProfile /> JSX.

Reverse-engineer any codebase into a complete Product Requirements Document (PRD). Analyzes routes, components, state management, API integrations, and user interactions to produce business-readable documentation detailed enough for engineers or AI agents to fully reconstruct every page and endpoint. Works with frontend frameworks (React, Vue, Angular, Svelte, Next.js, Nuxt), backend frameworks (NestJS, Django, Express, FastAPI), and fullstack applications. Use when users mention: generate PRD, reverse-engineer requirements, code to documentation, extract product specs from code, document page logic, analyze page fields and interactions, create a functional inventory, write requirements from an existing codebase, document API endpoints, or analyze backend routes.

Analyzes landing pages and provides detailed CRO (Conversion Rate Optimization) recommendations. Use when user provides a landing page URL or HTML/CSS code and needs optimization advice to maximize conversions, signups, or sales. Extracts page elements, audits against proven CRO principles, and delivers actionable recommendations in report format.

Use whenever the user wants to build or modify a chat, agent, or tool-calling UI in a React 19 + Tailwind v4 project — especially if the code imports from `@/components/agent-elements/*` or the project has that folder on disk. Triggers: "agent chat", "tool call UI", "streaming chat", "plan approval", "AgentChat", "InputBar", "tool renderer", mentions of Agent Elements, or requests to add a new agent surface with shadcn. Do NOT use for plain chat UIs that don't need tool/plan/approval cards, or for projects already committed to a different agent UI kit.

Guide for building billing UI with BillingSDK - the open-source React component library for pricing tables, subscription management, usage meters, invoice history, and customer portal flows wired to Dodo Payments.

Guide to using Konsta UI for pixel-perfect iOS and Material Design components in Capacitor apps. Works with React, Vue, and Svelte. Use this skill when users want native-looking UI without Ionic, or prefer a lighter framework.