Frontend
Frontend frameworks, UI components, CSS, and web apps
Skills List
pencil-design
Design UIs in Pencil (.pen files) and generate production code from them. Use when working with .pen files, designing screens or components in Pencil, or generating code from Pencil designs. Triggers on tasks involving Pencil, .pen files, design-to-code workflows, or UI design with the Pencil MCP tools.
chiroro-jr
elite-longterm-memory
Ultimate AI agent memory system. Combines bulletproof WAL protocol, vector search, git-based knowledge graphs, cloud backup, and maintenance hygiene. Never lose context again. For Clawdbot, Moltbot, Claude, GPT agents.
nextfrontierbuilds
posthog-instrumentation
Automatically add PostHog analytics instrumentation to code. Triggers when user asks to add tracking, instrument events, add analytics, or implement feature flags in their codebase.
posthog
awwwards-animations
Professional React animation skill for creating Awwwards/FWA-level animations using GSAP (useGSAP), Motion (Framer Motion), Anime.js, and Lenis. Use when building premium scroll experiences, custom cursors, page transitions, text animations, parallax effects, micro-interactions, or any animation that needs to be 60fps and award-worthy. Triggers on requests for smooth scroll, ScrollTrigger, magnetic effects, reveal animations, horizontal scroll, pin sections, stagger effects, useScroll, useTransform, integration with Three.js/WebGL, algorithmic art, mathematical art, generative art, fractals, L-systems, flow fields, strange attractors, sacred geometry, geometric puzzles, Dudeney dissections, tangram, tessellations, Penrose tiles, kinetic typography, glitch effects, text explosion, morphing text, circular text, brutalist design, minimalist animation, neo-brutalism, or design philosophy mixing. React-first approach with proper cleanup and hooks.
devmartinese
adk-frontend
Guidelines for building frontend applications that integrate with Botpress ADK bots - covering authentication, type generation, client setup, and calling bot actions
botpress
antdv-next
Antdv Next Vue 3 component library. Use when locating component API docs, props/events/slots, playground demos, or theme token definitions.
antdv-next
instantdb
Build complete, functional apps with InstantDB as the backend. Use when creating React/vanilla JS or expo applications. Triggers on requests for building apps.
instantdb
21st-cli-use
Search, install and pull code from the 21st.dev catalog with the `21st` CLI (`@21st-dev/cli`): find React/shadcn components, themes and templates, print a component's code or a theme's CSS, install an item into the project, or generate a new component with 21st AI. Use whenever the user says "search/find a component/theme on 21st", "install our team's Button", "add @user/slug", "pull that component's code", "найди компонент на 21st", "поставь наш компонент", or wants to script catalog access from the shell/CI. Auto-activate when a project has a `components.json` — search 21st before hand-writing UI.
21st-dev21st-design-sync
Look at the current project's design (its shadcn / Tailwind CSS variables and color tokens) and publish it to the 21st.dev community as a shareable theme, using `21st publish-theme`. Use when the user says "publish my theme", "share our design as a 21st theme", "sync my design to 21st", "turn my globals.css into a theme", "залей наш дизайн темой", "опубликуй тему". This is the 21st equivalent of design-sync: it reads the project's design tokens and syncs them into the public theme library.
21st-dev21st-registry
Publish your own work to 21st.dev and manage it from the terminal with the `21st` CLI (`@21st-dev/cli`): publish a React component to a team library, publish a CSS theme or a template listing, edit / unpublish / delete your published items, list and reopen existing component work, and read/replace your public profile page (bento board). Triggers when the user says "publish/share/upload this to 21st", "залей в наш регистр", "опубликуй компонент/тему/темплейт", "share with team", "make this reusable", "unpublish/edit/delete my component", "change its visibility", "find/open my old component or draft", "найди/открой мой старый компонент или драфт", "add this to my 21st profile/bento", "update my profile page", "обнови мой профиль на 21st", "добавь блок в бенто", "add controls/knobs to my demo", "сделай демо с контролами". For finding and installing existing items use `21st-cli-use`; for turning a project's design tokens into a theme use `21st-design-sync`.
21st-dev
nextjs-cache-architecture
Use this skill whenever the user wants to design or implement caching in a Next.js 16+ App Router project — setting up the "use cache" directive, building a cache tag registry, wiring mutations to invalidation utilities, structuring Suspense boundaries for partial prerendering, handling personalized content near cache boundaries, choosing cacheLife profiles, calling cacheTag / updateTag / revalidateTag correctly, migrating from unstable_cache, or debugging stale or incorrectly fresh data. Trigger even when the user only describes their domain (e.g. "I have a posts table") and asks how to cache it properly.
mohamed-hossam1nextjs-cache-architecture
Use this skill whenever the user wants to design or implement caching in a Next.js 16+ App Router project — setting up the "use cache" directive, building a cache tag registry, wiring mutations to invalidation utilities, structuring Suspense boundaries for partial prerendering, handling personalized content near cache boundaries, choosing cacheLife profiles, calling cacheTag / updateTag / revalidateTag correctly, migrating from unstable_cache, or debugging stale or incorrectly fresh data. Trigger even when the user only describes their domain (e.g. "I have a posts table") and asks how to cache it properly.
mohamed-hossam121st-ai
Generate and iterate on UI with 21st AI from the terminal via the `21st` CLI (`@21st-dev/cli`): sketch a UI from a prompt, preview the variants in the browser, edit any variant in place with a natural-language change, and pull the final code into the project. Use whenever the user wants to BUILD / SKETCH new UI ("sketch a pricing page", "generate a hero with 21st", "make me a <X> section"), ITERATE on a generated draft ("edit the third variant", "add a toggle to that take"), or GRAB the code of a draft ("pull that variant's code", "сгенери UI на 21st", "поправь третий вариант", "забери код того наброска"). For finding/installing existing components use the `21st-cli-use` skill; to publish your own, `21st-registry`.
21st-dev
meticulous-simulate-and-diff
Run a Meticulous session simulation against a live URL and analyze the visual output — either by inspecting screenshots directly (quick-check mode) or by comparing pixel and HTML diffs against a base replay. Use when checking whether a code change has introduced visual regressions for a specific session.
alwaysmeticulous
integrate-todo-list
MUST be used whenever adding a task/todo list feature to a Flows app with Atlas chat. Do NOT manually create todo state management or tool definitions — this skill handles the full module (context, provider, tool, hooks, UI components) and all integration wiring. Prerequisite: integrate-atlas-chat must already be set up. Triggers: todo list, task list, task tracking, TodoWrite, todo panel, task panel, progress tracking, add todos, add tasks.
cognitedatacorrectness-and-error-handling
MUST be used whenever fixing correctness and error handling issues in a Flows app. This skill finds AND fixes bugs, missing error states, unhandled rejections, and edge-case failures — it does not just report them. Triggers: correctness, error handling, bug fix, edge case, crash, unhandled, null, undefined, empty state, loading state, error boundary, try catch, async error, useEffect cleanup, type guard, runtime error, robustness.
cognitedataintegrate-file-viewer
MUST be used whenever integrating CogniteFileViewer into a Flows app to preview CDF files (PDFs, images, text). Do NOT manually wire up react-pdf or file resolution — this skill handles installation, Vite config, worker setup, and component usage. Triggers: file viewer, file preview, CogniteFileViewer, PDF viewer, view CDF files, document viewer, preview file.
cognitedatasetup-flows-auth
MUST be used when migrating an existing React app to Flows, or when no Flows auth is wired up. Detects classic vs Apps API flow from `app.json` `infra` field, installs the right packages, and wires up the entry file. No-op when a valid auth setup is already in place. Triggers: migrate to Flows, add Flows auth, DuneAuthProvider, AppSdkAuthProvider, connectToHostApp, useDune, Flows setup, setup auth, missing auth provider, CDF authentication, Fusion iframe auth.
cognitedataperformance
MUST be used whenever fixing performance issues in a Flows app. This skill finds AND fixes performance problems — re-renders, inefficient queries, missing pagination, unbounded fetches, large bundles, and memory leaks. It does not just report them. Always measure before and after. Triggers: performance, slow, laggy, optimize, re-render, bundle size, load time, CDF query, large list, memory leak, debounce, virtualize, lazy load, code split.
cognitedata
vega-multi-tv-migration
Migrate Vega OS (Amazon Fire TV) applications to multi-platform React Native monorepo supporting Android TV, Apple TV, and other platforms. Covers analysis, implementation, and native module integration. Use when migrating TV apps to support multiple platforms or building new multi-platform TV applications.
amazonappdev
frontend-design
Frontend design skill that generates, restyles, and guides UI development in mager's actual design taste — concept-led interfaces that feel authored, tactile, expressive, and highly usable, spanning editorial warmth, bright modern product design, and high-contrast neon systems. Use this skill when building or reviewing any frontend UI.
mager
typescript-react-reviewer
Expert code reviewer for TypeScript + React 19 applications. Use when reviewing React code, identifying anti-patterns, evaluating state management, or assessing code maintainability. Triggers: code review requests, PR reviews, React architecture evaluation, identifying code smells, TypeScript type safety checks, useEffect abuse detection, state management review.
dotneet
echarts
You MUST use this when building, styling, debugging, or optimizing Apache ECharts charts in JavaScript, React, or Vue - setup, lifecycle, responsive resizing, theming, large datasets, streaming, SSR, and symptoms like a blank chart or broken resize. Not for choosing chart types or for other charting libraries.
sentimony
tigris-static-assets
Use when deploying static assets (CSS, JS, fonts, build artifacts) to Tigris — asset pipelines, cache headers, CDN delivery, covers Next.js, Remix, Rails, Django, Laravel, Express
tigrisdata