Web & Frontend

Apply exact Tailwind arbitrary shadow utilities for polished, layered neutral elevation. Use when compact cards, controls, panels, popovers, hero media, feature callouts, or modal-like containers need refined shadows without default Tailwind shadow scales or colored tinting.

Apply CSS alpha masking with linear-gradient for horizontal or vertical edge fades (mask-image and -webkit-mask-image). Use when asked for alpha masks, fade edges, or CSS mask gradients.

Add and tune animated liquid-metal WebGL borders with the React `metal-fx` package. Use when buttons, icon controls, chips, tabs, cards, or selected surfaces need a metallic active, selected, hover, focus, or premium border; when implementing the MetalFx component from metal.jakubantalik.com; or when troubleshooting its presets, themes, strength, glow, reflections, sizing, radius, animation, accessibility, SSR, or performance.

Extract self-contained static HTML from a built web application or React components by inlining CSS and images. Use this skill whenever you need to capture a specific UI state, share a static version of a page, or prepare assets for Stitch upload, even if the user just asks to 'save the HTML' or 'mock the view'.

Best practices and comprehensive guide for Remotion - programmatic video creation in React with animations, compositions, and media handling

Interactive scientific and statistical data visualization library for Python. Use when creating charts, plots, or visualizations including scatter plots, line charts, bar charts, heatmaps, 3D plots, geographic maps, statistical distributions, financial charts, and dashboards. Supports both quick visualizations (Plotly Express) and fine-grained customization (graph objects). Outputs interactive HTML or static images (PNG, PDF, SVG).

Run technical quality checks across accessibility, performance, theming, responsive design, and anti-patterns. Generates a scored report with P0-P3 severity ratings and actionable plan. Use when the user wants an accessibility check, performance audit, or technical quality review.

Audit a StyleSeed-based component or page for WCAG 2.2 AA issues and apply practical accessibility fixes where the code makes them safe.

Answer repository questions grounded entirely in source code evidence. Use when user asks a question about the codebase, user wants to understand a specific file, function, or component, or user asks "how does X work" or "where is Y defined".

Evaluate design from a UX perspective, assessing visual hierarchy, information architecture, emotional resonance, cognitive load, and overall quality with quantitative scoring, persona-based testing, automated anti-pattern detection, and actionable feedback. Use when the user asks to review, critique, evaluate, or give feedback on a design or component.

React/Next.js 生产级 UI 动效系统——实现动画、转场和微交互时使用

React、Next.js、状态管理、性能优化和UI最佳实践的前端开发模式。

You are an expert in SWC, the Rust-based JavaScript/TypeScript compiler. You help developers replace Babel and Terser with SWC for 20-70x faster compilation, minification, and bundling — used by Next.js, Vite, Parcel, and Deno as their default compiler, handling TypeScript stripping, JSX transformation, polyfill injection, and code minification at native speed.

Fetch, cache, and revalidate data in React with SWR — stale-while-revalidate data fetching library by Vercel. Use when someone asks to "fetch data in React", "SWR", "data fetching hook", "cache API calls", "stale-while- revalidate", "auto-refresh data", or "React data fetching without Redux". Covers data fetching, caching, revalidation, mutation, pagination, and optimistic updates.

You are an expert in Bolt.new by StackBlitz, the AI-powered full-stack development environment that runs entirely in the browser. You help developers go from idea to deployed app in minutes using natural language prompts — Bolt generates complete applications with frontend, backend, database, and deployment, all running in a WebContainer without local setup.

Assists with building, deploying, and updating React Native applications using Expo. Use when setting up file-based routing with Expo Router, configuring EAS Build and Submit, implementing over-the-air updates, or integrating Expo SDK modules for camera, location, and notifications. Trigger words: expo, expo router, eas build, eas update, expo sdk.

htmx gives you access to AJAX, CSS transitions, WebSockets, and Server-Sent Events directly in HTML using attributes. It enables dynamic web UIs without writing JavaScript by letting any element issue HTTP requests and swap content into the DOM.

Jest is a comprehensive JavaScript testing framework built by Meta, designed for zero-configuration testing of JavaScript and TypeScript applications. It provides a complete ecosystem for unit testing, integration testing, and snapshot testing with built-in code coverage, mocking capabilities, and parallel test execution. Jest works seamlessly with React, Node.js, Angular, Vue, and virtually any JavaScript project, making it the most widely adopted testing framework in the ecosystem.

You are an expert in MobX, the simple and scalable state management library based on transparent reactive programming. You help developers build React applications with observable state, automatic tracking of dependencies, computed values, actions for state mutations, and reactions for side effects — providing a natural, class-based or functional approach where the UI automatically updates when state changes without manual subscriptions.

You are an expert in urql, the highly customizable and lightweight GraphQL client for React, Vue, Svelte, and vanilla JavaScript. You help developers fetch GraphQL data with minimal bundle size, document caching, normalized caching via Graphcache, exchanges (middleware pipeline), subscriptions, and offline support — providing a leaner alternative to Apollo Client with better extensibility.

Use when building, optimizing, or debugging cross-platform mobile applications with React Native and Expo. Provides guidance for navigation setup, native module integration, performance optimization, and platform-specific handling for iOS and Android.

Recurring workflow patterns from 904+ Construct-AI development sessions. Covers git operations, debugging, code review, UI component work, and documentation procedures.

Use when ASTA Powerproject integration, API development, or data synchronization is needed. This agent specializes in ASTA Powerproject connectivity within the IntegrateForge AI ecosystem.

Expert in Expo for React Native development. Covers Expo Router, EAS Build and Submit, development builds, native module integration, and production deployment. Knows how to build cross-platform mobile apps efficiently while maintaining access to native capabilities. Use when "expo, react native, mobile app, eas build, expo router, ios android, expo, react-native, mobile, ios, android, eas, cross-platform" mentioned.

Expert in using v0.dev for AI-powered UI generation. Covers prompting strategies, component iteration, shadcn/ui integration, export workflows, and customization. Knows how to get the best results from v0 and integrate generated components into production codebases. Use when "v0, v0.dev, generate ui, shadcn component, ai component, generate component, v0, v0-dev, ui-generation, shadcn, component-generation, ai-ui, vercel" mentioned.

Expert in LangGraph - the production-grade framework for building stateful, multi-actor AI applications. Covers graph construction, state management, cycles and branches, persistence with checkpointers, human-in-the-loop patterns, and the ReAct agent pattern. Used in production at LinkedIn, Uber, and 400+ companies. This is LangChain's recommended approach for building agents. Use when "langgraph, langchain agent, stateful agent, agent graph, react agent, agent workflow, multi-step agent, langgraph, langchain, agents, state-machine, workflow, graph, ai-agents, orchestration" mentioned.

Expert knowledge for SvelteKit full-stack web applications with SSR, form actions, and Svelte 5 runesUse when "sveltekit, svelte kit, svelte 5, svelte5, runes, $state, $derived, $effect, $props, $bindable, form actions, +page.server, +page.ts, +layout, +server, load function, svelte adapter, adapter-node, adapter-vercel, hooks.server, sveltekit, svelte, svelte5, ssr, form-actions, load-functions, runes, server-routes, adapters, vite" mentioned.

Svelte Kit

Tailwind Css

Build content-focused websites with Astro — zero JS by default, islands architecture, multi-framework components, and Markdown/MDX support.

Build native UI with the @expo/ui package: real SwiftUI on iOS and Jetpack Compose on Android rendered from React in an Expo or React Native app. Covers universal cross-platform components (Host, Column, Row, Button, Text, List, and more imported from @expo/ui), drop-in replacements...

Audit a component or page for accessibility issues and fix them

Builds INTERACTIVE charts with the Plotly Python library (plotly.express / graph_objects) — hover tooltips, zoom/pan, animations, rangesliders, 3D rotation, and standalone HTML/web-embeddable output. Use when a chart must be interactive or web-embedded, for dashboards (incl. Dash), exploratory data analysis, or rotatable 3D plots. For static publication figures defer to alterlab-matplotlib; for static statistical charts (heatmaps, distributions) defer to alterlab-seaborn; for diagrams/schematics defer to alterlab-scientific-viz. Part of the AlterLab Academic Skills suite.

Tailwind Gut & Convert - strip custom CSS, rewrite in Tailwind utilities

Clones a live web page's exact look into clean, semantic Tailwind — same design, but the framework-generated selectors (css-1a2b3c, sc-bdfBwQ, jsx-hashes) are replaced with real Tailwind utility classes — then validates the rewrite against the original in a loop until it matches. Use whenever a user points at a live URL and wants the SAME design rebuilt in readable Tailwind classes, not a restyle — phrasings like "rebuild this page in Tailwind but keep the exact look", "convert this React app's styling to Tailwind classes", "clone this design into clean Tailwind", "same look, real Tailwind classes, not the hashed ones", or "de-obfuscate this page's classes into Tailwind". For a byte-exact clone that KEEPS the original ugly selectors, use page-cloner. For a redesign that changes the look, use page-redesigner. Requires Claude in Chrome for capturing the source page.

HTML Design Styles