Skills
96,981 packaged capabilities and playbooks for agents. Install any of them with one command.
Design & UI
Full spec-driven pipeline — walks brief → tokens → shape (spec) → craft (build) → converge → ship in one guided run. Writes `.ui-craft/spec.md`. Run when starting a net-new surface from scratch. Invoke when the user asks for sddesign on their UI, or mentions 'sddesign' alongside design / UI / frontend work.
Audits built React and Next.js frontends for user-facing defects in code and rendered UI: state gaps, data loss, double submits, focus and keyboard failures, rollback gaps, stale async, accessibility markup, layout resilience, performance setup, typography, motion hazards, and microcopy. Returns file:line findings and a ship verdict. Use when asked to "review this PR for UX bugs", "audit this component", "check my UI", "is this accessible", "design QA this page", or "is this ready to ship". For product decisions use product-design; for agentic apps use ax-audit; for deep type or motion use typography-audit or ui-animation; for the wording of a string rather than whether it is missing or leaky, use copywriting.
shadcn/ui component library best practices and patterns (formerly shadcn-ui). This skill should be used when writing, reviewing, or refactoring shadcn/ui components to ensure proper architecture, accessibility, and performance. Triggers on tasks involving Radix primitives, Tailwind styling, form validation with React Hook Form, data tables, theming, or component composition patterns.
Reviews UI/frontend code and tells you exactly why it "looks AI-generated" — then how to fix it. Use it when a React/Tailwind/HTML interface looks off, generic, or unfinished, when you want a design score before shipping, or when asked to make UI look more professional, polished, or "designed, not generated." Self-contained; based on the open-source StyleSeed design engine.
Create and customize visual diagrams in React using Syncfusion Diagrams. Trigger for requests involving React component setup, nodes and connectors, flowcharts, org charts, process diagrams, BPMN or UML models, ER diagrams, layout algorithms, swimlanes, symbol palettes, and interactive diagram visualization features.
Use when building Vue 3 UI with @vuetify/v0, or before hand-rolling behavior it already ships, such as a button, dialog, popover, setTimeout timer, selection, form, registry, virtual list, focus handling, snackbar, theme, RTL, breakpoints, an SSR window check, or a WAI-ARIA compound, along with the rest of its components, composables, and utilities
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
Comprehensive toolkit for detecting and eliminating "AI slop" - generic, low-quality AI-generated patterns in natural language, code, and design. Use when reviewing or improving content quality, preventing generic AI patterns, cleaning up existing content, or enforcing quality standards in writing, code, or design work.
Implement the Syncfusion React Chat UI component. Use this skill to create and customize messaging interfaces, including chat setup, message rendering, file attachments, typing indicators, conversation layout, theming, event handling, and real-time updates in React applications.
Implement the Syncfusion React Kanban component for flexible task management and workflow visualization. Use this when building kanban boards, workflow stages, or card-based task management systems. This skill covers drag-and-drop card operations, swimlane organization, WIP limit validation, custom card templates, event handling, and API data binding for React applications.
Implement and customize Tab components in Syncfusion React applications. Use this skill whenever the user needs to create tabbed interfaces, manage tab content rendering, configure header positioning, enable drag-and-drop reordering, or customize tab styling. Essential for building navigation layouts, content organization, responsive tab controls, localized tabs, and accessible tab interactions.
Implement the Syncfusion React AI AssistView component. Use this skill to handle AI-powered conversational interfaces, AssistView setup, conversation flow, speech input or output, file attachments, UI customization, state management, chain of thoughts reasoning visualization, generative UI with dynamic tools, AI telemetry and usage tracking, prompt-editor mentions, and AI service integration such as OpenAI or Azure AI in React applications.
Implement Syncfusion React Accumulation Charts including Pie, Doughnut, Funnel, and Pyramid chart types. Use this skill when users need circular data visualization, percentage-based charts, or proportional data displays. Covers data labels, legends, tooltips, grouping, smart labels, drill-down charts, explode effects, theming, accessibility, export/print capabilities, and dynamic data updates.
Build responsive, interactive dashboard layouts with Syncfusion React Dashboard Layout component. Implement draggable and resizable panels, responsive grid systems, dynamic panel management, and state persistence. This skill covers multi-column layouts, floating panel arrangement, extensive customization, drag-drop panel rearrangement, and state management for React applications.
Designs user experiences, creates wireframes, defines user flows, ensures accessibility. Trigger keywords - UX design, wireframe, user flow, accessibility, WCAG, mobile-first, responsive, UI design, user journey, interface design, user experience, design system, component design, interaction design
Create aesthetically beautiful interfaces following proven design principles. Use when building UI/UX, analyzing designs from inspiration sites, generating design images with ai-multimodal, implementing visual hierarchy and color theory, adding micro-interactions, or creating design documentation. Includes workflows for capturing and analyzing inspiration screenshots with chrome-devtools and ai-multimodal, iterative design image generation until aesthetic standards are met, and comprehensive design system guidance covering BEAUTIFUL (aesthetic principles), RIGHT (functionality/accessibility), SATISFYING (micro-interactions), and PEAK (storytelling) stages. Integrates with chrome-devtools, ai-multimodal, media-processing, ui-styling, and web-frameworks skills.
Implement Syncfusion React Maps component for geographical data visualization. Use this when displaying interactive maps, location-based information, or regional data analysis. This skill covers map providers (Bing, OpenStreetMap), GeoJSON rendering, markers and bubbles, zooming/panning, data labels, legends, and choropleth visualizations in React applications.
Comprehensive guide to implementing Syncfusion React Query Builder component. Use this skill when building advanced filter interfaces, creating complex data query systems, or implementing dynamic rule-based filtering. This skill covers query builder configuration, SQL query conversion, drag-and-drop filtering, customization, and state management.
Build several genuinely different solutions to the same problem at once, spread across what the user does rather than how it looks. Use when one direction is on the table and the team is about to refine it by default. For choosing between the concepts afterwards, use `concept-selection`.
Use when asked to make a launch video, product film, motion design piece, UI motion reel, Dribbble-style UI animation or animated brand/logo sting—anything rendered to MP4 from HTML with a cursor, morphing UI, springs, beat-synced music and SFX. Carries Chan's full creative direction (one shape never cut, blur content swaps, springs, real data, logo slams, no creative limits) and the proven build/render pipeline (pure seek(t), closed-form springs, Playwright subframes, ffmpeg tmix, numpy beat grid).
Implement the Syncfusion React BlockEditor component for block-based content editing. Use this skill for block-based rich content editing, document creation, CMS interfaces, markdown alternatives, editor setup, block configuration, toolbar or menu customization, drag-and-drop behavior, formatting options, APIs, accessibility, real-time collaborative editing with Yjs integration, user presence and remote cursors, document version history and snapshot management in React.
Choose between competing concepts against criteria fixed in advance, and record what each rejected concept was testing. Use when several directions are alive and one has to win. For picking which problem to work on, use `opportunity-framework` (ux-strategy); for deciding by production traffic, use `a-b-test-design`.
Implement the Syncfusion React SpeechToText component. Use this skill to convert speech to text, manage microphone input, control listening states, process speech events, customize UI, support accessible voice-enabled forms, and handle globalization and security in React applications.
Implement Syncfusion React TreeView component for hierarchical data display with node selection, drag-drop reordering, inline editing, and custom templating. Use this when building organizational charts, file systems, navigation trees, or any multi-level hierarchical interface. Covers selection modes, checkboxes, filtering, sorting, keyboard navigation, accessibility, and performance optimization with stateless templates.
Frontend development guidelines for React/TypeScript applications. Modern patterns including Suspense, lazy loading, useSuspenseQuery, file organization with features directory, MUI v7 styling, TanStack Router, performance optimization, and TypeScript best practices. Use when creating components, pages, features, fetching data, styling, routing, or working with frontend code.
Implement right-to-left (RTL) layouts for Hebrew web applications. Use when user asks about RTL layout, Hebrew text direction, bidirectional (bidi) text, Hebrew CSS, "right to left", or needs to build a Hebrew web UI. Covers CSS logical properties, the :dir() pseudo-class, Tailwind RTL, React/Next.js RTL setup, icon mirroring, Hebrew typography, and font selection. Do NOT use for Arabic RTL (similar but different typography) unless user explicitly asks for shared RTL patterns, or for native mobile RTL (React Native I18nManager, SwiftUI, Android) which is out of scope.
Implement the Syncfusion React Dropdown Tree component for hierarchical data selection with dropdown interaction. Use it when working with multi-select checkboxes, lazy loading, remote OData integration, custom templates, keyboard navigation, RTL support, or localized interfaces. Supports auto-check hierarchy, filtering, tree settings, comprehensive event handling, and full accessibility.
Apple Human Interface Guidelines for layout and navigation components. Use this skill when the user asks about "sidebar", "split view", "tab bar", "tab view", "scroll view", "window design", "panel", "list view", "table view", "column view", "outline view", "navigation structure", "app layout", "boxes", "ornaments", or organizing content hierarchically in Apple apps. Also use when the user says "how should I organize my app", "what navigation pattern should I use", "my layout breaks on iPad", "how do I build a sidebar", "should I use tabs or a sidebar", or "my app doesn't adapt to different screen sizes". Cross-references: hig-foundations for layout/spacing principles, hig-platforms for platform-specific navigation, hig-patterns for multitasking and full-screen, hig-components-content for content display.
Build immersive, cinematic 2.5D interactive websites using scroll storytelling, parallax depth, text animations, and premium scroll effects — no WebGL required. Use this skill for any web design task: landing pages, product sites, hero sections, scroll animations, parallax, sticky sections, section overlaps, floating products between sections, clip-path reveals, text that flies in from sides, words that light up on scroll, curtain drops, iris opens, card stacks, bleed typography, and any site that should feel cinematic or premium. Trigger on phrases like "make it feel alive", "Apple-style animation", "sections that overlap", "product rises between sections", "immersive", "scrollytelling", or any scroll-driven visual effect. Covers 45+ techniques across 8 categories. Always inspects, judges, and plans assets before coding. Use aggressively for ANY web design task.
Creates jaw-dropping, production-ready frontend interfaces AND delivers perfectly matched real photos (Unsplash/Pexels direct links) OR flawless custom image-generation prompts for hero images, backgrounds, and illustrations. Zero AI slop, zero fake URLs.
Implement the Syncfusion React Inline AI Assist component. Use this skill to add inline AI suggestions, integrate AI services such as OpenAI, Gemini, Lite-LLM, or Ollama, configure command and response actions, customize toolbars, enable built-in Speech-to-Text, handle events, and support real-time prompt-response workflows in React.
Implement the Syncfusion React Ribbon component. Use this skill for creating Ribbon UIs with tabs, groups, items, Classic or Simplified layouts, file menu and backstage view, contextual tabs, galleries, KeyTips, accessibility, theming, responsive behavior, customization, and troubleshooting in React.
Apple Human Interface Guidelines interaction and UX patterns. Use this skill when the user asks about "onboarding flow", "user onboarding", "app launch", "loading state", "drag and drop", "search pattern", "settings design", "notifications", "modality", "multitasking", "feedback pattern", "haptics", "undo redo", "file management", "data entry", "sharing", "collaboration", "full screen", "audio", "video", "haptic feedback", "ratings", "printing", "help", or account management in Apple apps. Also use when the user says "how should onboarding work", "my app takes too long to load", "should I use a modal here", "how do I handle errors", "when should I ask for permissions", "how to show progress", or "what's the right way to confirm a delete". Cross-references: hig-foundations for underlying principles, hig-platforms for platform specifics, hig-components-layout for navigation, hig-components-content for data display.
When the user wants to apply, document, or enforce brand guidelines for any product or company. Also use when the user mentions 'brand guidelines,' 'brand colors,' 'typography,' 'logo usage,' 'brand voice,' 'visual identity,' 'tone of voice,' 'brand standards,' 'style guide,' 'brand consistency,' or 'company design standards.' Covers color systems, typography, logo rules, imagery guidelines, and tone matrix for any brand — including Anthropic's official identity.
Creates flowcharts, swim lane diagrams, and business process diagrams using Draw.io (diagrams.net). Covers standard flowchart shapes (process, decision, start/end), connectors, auto-layout, and export to PNG/SVG/PDF. Use when the user needs to visualize workflows, decision trees, or business processes.
Review or design an iOS interface for iPhone Duo's poses — closed, open, book-folded, tabletop and tent — covering side-mounted controls, asymmetric layouts, fold avoidance, sheets, and how to use the inner display well. Use for design critique, mockup review, or deciding what a screen should look like on a foldable iPhone rather than how to code it.
Toolkit for styling artifacts with a theme. These artifacts can be slides, docs, reportings, HTML landing pages, etc. There are 10 pre-set themes with colors/fonts that you can apply to any artifact that has been creating, or can generate a new theme on-the-fly.
Audit and rewrite frontend UI to remove generic AI design patterns ("AI slop"), both the first-order defaults (purple gradients, Inter, a centered hero over three cards, untouched shadcn) and the second-order "tasteful AI" ones (cream with terracotta, near-black with acid green, all-caps mono chrome, one accented headline word, decorative 01/02/03). Use when asked to "de-slop a UI", "make a design look less AI-generated", "audit a page or component for AI design tells", "fix Claude/Codex-generated frontend that looks generic", or keep a multi-page site on one design system. Covers HTML/CSS and React/Tailwind/shadcn. Has a detection-only mode and a zero-dependency scanner (scripts/detect.mjs) for the code-certain tells.
New to MCP?
From what the protocol is to installing your first server, these answers cover most first questions.
An open protocol that defines how AI applications connect to external tools and data in a uniform way. Clients talk to the model; MCP servers provide tools, resources and prompt templates. They exchange standard messages, so one server can be reused by many clients.