Web & Frontend

jsgforever Bundle

Optimize React apps for 60fps performance. Implements memoization, virtualization, code splitting, bundle optimization. Use for slow renders, large lists, bundle bloat. Activate on "React performance", "slow render", "useMemo", "bundle size", "virtualization". NOT for backend optimization, non-React frameworks, or premature optimization.

sebastienros Skill

Guide for writing tests for the Aspire Dashboard. Use this when asked to create, modify, or debug dashboard unit tests or Blazor component tests.

plurigrid Bundle

Svelte runes guidance. Use for reactive state, props, effects, or migration. Covers $state, $derived, $effect, $props, $bindable. Prevents reactivity mistakes.

plurigrid Bundle

Automate browser interactions for web testing, form filling, screenshots, and data extraction. Use when the user needs to: - Navigate websites and interact with web pages - Fill forms and click buttons - Take screenshots of web content - Test web applications - Extract information from web pages - Debug frontend issues in the browser - Monitor console logs and network requests - Record browser sessions as video This skill uses agent-browser for comprehensive browser automation. RECOMMENDATION: Disable Chrome DevTools or Playwright MCP when using this skill to save context.

posit-dev Skill

Primary accessibility skill for VS Code. REQUIRED for new feature and contribution work, and also applies to updates of existing UI. Covers accessibility help dialogs, accessible views, verbosity settings, signals, ARIA announcements, keyboard navigation, and ARIA labels/roles.

posit-dev Skill

Use when creating or updating component fixtures for screenshot testing, or when designing UI components to be fixture-friendly. Covers fixture file structure, theming, service setup, CSS scoping, async rendering, and common pitfalls.

posit-dev Skill

Download screenshot baselines from the latest CI run and commit them. Use when asked to update, accept, or refresh component screenshot baselines from CI, or after the screenshot-test GitHub Action reports differences. This skill should be run as a subagent.

pingcap Skill

Use when creating or editing pull requests in pingcap/docs so the PR template sections, version checkboxes, related-link fields, HTML comments, and description structure stay intact. Trigger on tasks involving PR creation, PR body updates, version selection, cherry-pick label decisions, or translating a PR from docs-cn.

dotcms Bundle

Generates Angular code and provides architectural guidance. Trigger when creating projects, components, services, or HTTP communication, or for best practices on reactivity (signals, linkedSignal, resource, httpResource), forms, dependency injection, routing, SSR, accessibility (ARIA), animations, styling (component styles, Tailwind CSS), testing, or CLI tooling.

91zgaoge Bundle

Use when Codex is building or iterating on a web game (HTML/JS) and needs a reliable development + testing loop: implement small changes, run a Playwright-based test script with short input bursts and intentional pauses, inspect screenshots/text, and review console errors with render_game_to_text.

91zgaoge Skill

Build interactive web artifacts — single-file HTML/CSS/JS apps, data visualizations, dashboards, games, and interactive demos. Use when asked to create something visual and interactive that runs in a browser.

codealive-ai Bundle

Hands-on playbook for Windows 11 disk cleanup, dev-machine optimization, and proactive health alerting. Use when the PC is full or slow, when a BSOD / Kernel-Power 41 / crash dump / commit-memory pressure happened, when the user asks to free disk space, audit storage, set up disk/memory alerts, or restore the same monitoring on a new PC. Built around native Microsoft-supported tooling (Storage Sense, cleanmgr, DISM, pnputil, vssadmin, wevtutil, powercfg) as the safety floor, a drift-protected HTML cleanup UI, and a Task Scheduler + BurntToast alerter. Covers dev machines with heavy AI/Docker/WSL workloads. Not for general Windows support, hardware diagnostics, GPU/driver troubleshooting, antivirus/malware removal, Windows Update repair, networking, or app-specific performance problems unrelated to disk or memory pressure.

dirnbauer Bundle

Use when building accessible navigation, forms, filters, tables, skip links, disclosure widgets, or reviewing frontend code for accessibility in TYPO3 v13/v14 LTS projects. Also covers frontend implementation patterns: sticky header, lazy loading, breadcrumb, language switcher, animations, scroll-to-anchor, skeleton loading, toast notifications, back-to-top. Covers WCAG 2.2 AA: ARIA attributes, focus management, keyboard navigation, screen reader support, color contrast, link identification, heading hierarchy, native dialog element modal (#107443), Camino theme a11y.

dirnbauer Bundle

Use when writing, editing, reviewing or debugging TypoScript, TSconfig or Fluid templates in TYPO3 projects (v14.3 LTS is the current target). Also use for code reviews of .typoscript, .tsconfig and Fluid .html files, v13->v14 migration (INCLUDE_TYPOSCRIPT->@import, userFunc opt-in #108054, getTSFE() condition removed, updateReferenceIndex toggle removed, site.locale expression), Fluid 4->5 breaking changes, and when suggesting improvements or checking for deprecated patterns.

drolu Bundle

Create video compositions, animations, title cards, overlays, captions, voiceovers, audio-reactive visuals, and scene transitions in HyperFrames HTML. Use when asked to build any HTML-based video content, add captions or subtitles synced to audio, generate text-to-speech narration, create audio-reactive animation (beat sync, glow, pulse driven by music), add animated text highlighting (marker sweeps, hand-drawn circles, burst lines, scribble, sketchout), or add transitions between scenes (crossfades, wipes, reveals, shader transitions). Covers composition authoring, timing, media, and the full video production workflow. For dev-loop CLI commands (init, lint, inspect, preview, render) see the hyperframes-cli skill; for asset preprocessing commands (tts, transcribe, remove-background) see the hyperframes-media skill.

aidenlx Skill

Verify Next.js runtime behavior after editing app code. Use this skill to confirm a change actually works in a running app — not just that it compiles or type-checks. Combines /_next/mcp (Next.js's view) with agent-browser (the browser's view). Requires a running `next dev`.

codedogqby Bundle

Create distinctive, production-grade frontend interfaces with high design quality. Use this skill when the user asks to build web components, pages, artifacts, posters, or applications (examples include websites, landing pages, dashboards, React components, HTML/CSS layouts, or when styling/beautifying any web UI). Generates creative, polished code and UI design that avoids generic AI aesthetics.

petyosi Bundle

Build virtualized lists, grids, and tables with react-virtuoso. Use this skill when (1) rendering large or infinite lists, (2) building grouped lists with sticky headers, (3) virtualizing HTML tables, (4) laying out same-sized items in a responsive grid, (5) building feeds or logs that follow new items at the bottom, (6) diagnosing virtualization symptoms such as jumpy scrolling, a list that does not scroll to the bottom, items overlapping, blank items, or "zero-sized element" errors, or (7) any task involving Virtuoso, GroupedVirtuoso, VirtuosoGrid, TableVirtuoso, VirtuosoHandle, itemContent, followOutput, or firstItemIndex.

petyosi Bundle

Manage application state with the @virtuoso.dev/reactive-engine-* package family. Use this skill when (1) defining reactive state with Cell, Stream, Trigger, or Resource nodes, (2) wiring React components through EngineProvider, useCellValue, useCellValues, or usePublisher, (3) fetching data with Query and Mutation from reactive-engine-query, (4) routing with Route, Layout, and Guard from reactive-engine-router, (5) persisting cells with linkCellToStorage, (6) architecting a component or library on top of the engine, (7) observing or troubleshooting propagation with describeNode, observeDiagnostics, useEngineDiagnostics, or useRemoteEngineDiagnostics, or (8) any task involving Engine, pub, sub, getValue, combine, pipe, link, changeWith, the e namespace, missing or duplicate emissions, unexpected distinct suppression, or the error "No active engine found".

motormetrics Bundle

Guide for feature flags and A/B tests with the Flags SDK (`flags` npm package) and Vercel Flags. Use when: declaring flags with `flag()`, using `vercelAdapter` or `vercel flags` CLI (add, list, enable, disable, inspect, archive, rm, sdk-keys), setting up providers/adapters (Vercel, Statsig, LaunchDarkly, PostHog, GrowthBook, Hypertune, Global Config, OpenFeature, Split, Flagsmith, Reflag, Optimizely, or custom adapters), implementing precompute patterns for static pages, setting up `identify`/`dedupe`, integrating Flags Explorer/Toolbar, working with flags in Next.js (App Router, Pages Router, Middleware) or SvelteKit, writing custom adapters, or encrypting/decrypting flag values. Triggers: feature flags, A/B testing, experimentation, flags SDK, flag adapters, precompute, Flags Explorer, feature gates, flag overrides, Vercel Flags, vercel flags CLI, vercel flags add, vercel flags list, vercel flags enable, vercel flags disable, `flags/next`, `flags/sveltekit`, `flags/react`, `@flags-sdk/*`.

motormetrics Bundle

Full Sentry SDK setup for Next.js. Use when asked to "add Sentry to Next.js", "install @sentry/nextjs", or configure error monitoring, tracing, session replay, logging, profiling, AI monitoring, or crons for Next.js applications. Supports Next.js 13+ with App Router and Pages Router.

motormetrics Bundle

PostHog integration for Next.js App Router applications

ethanyoq Bundle

All animation knowledge for HyperFrames — atomic motion rules, multi-phase scene blueprints, scene transitions, broader motion-design techniques, AND the seven runtime adapters (GSAP default, plus Lottie, Three.js, Anime.js, CSS keyframes, Web Animations API, TypeGPU). Use for any motion or animation task: pick 2-4 rules and compose, or load a blueprint, or look up runtime-specific API (e.g. GSAP eases / Lottie player / Three.js mixer). Also covers auditing an existing composition's choreography (animation map) and 24 named text-animation effects. HyperFrames-native: single paused timeline, seek-safe, deterministic.

archibate Bundle

A long-form article / blog post — masthead, hero image placeholder, article body with figures and pull quotes, author byline, related posts. Use when the brief asks for "blog", "article", "post", "essay", or "case study".

archibate Bundle

Create, repair, validate, preview, and package Codex-compatible animated pet spritesheets from character art, screenshots, generated images, or visual references. Use when a user wants to hatch a Codex pet, create a custom animated pet, or build a built-in pet asset with an 8x9 atlas, transparent unused cells, row-by-row animation prompts, QA contact sheets, preview videos, and pet.json packaging. This skill composes the installed $imagegen system skill for visual generation and uses bundled scripts for deterministic spritesheet assembly.

archibate Bundle

生成"电子杂志 × 电子墨水"风格的横向翻页网页 PPT（单 HTML 文件），含 WebGL 流体背景、衬线标题 + 非衬线正文、章节幕封、数据大字报、图片网格等模板。当用户需要制作分享 / 演讲 / 发布会风格的网页 PPT，或提到"杂志风 PPT"、"horizontal swipe deck"、"editorial magazine"、"e-ink presentation"时使用。

archibate Bundle

Create video compositions, animations, title cards, overlays, captions, voiceovers, audio-reactive visuals, and scene transitions in HyperFrames HTML. Use when asked to build any HTML-based video content, add captions or subtitles synced to audio, generate text-to-speech narration, create audio-reactive animation (beat sync, glow, pulse driven by music), add animated text highlighting (marker sweeps, hand-drawn circles, burst lines, scribble, sketchout), or add transitions between scenes (crossfades, wipes, reveals, shader transitions). Covers composition authoring, timing, media, and the full video production workflow. For CLI commands (init, lint, preview, render, transcribe, tts) see the hyperframes-cli skill.

archibate Bundle

Single-file horizontal-swipe HTML deck. Built by copying the seed `assets/template.html` (which carries the proven 5-rule iframe nav script) and pasting slide layouts from `references/layouts.md`. Pitch decks, product overviews, study material — when you don't need the magazine aesthetic of `magazine-web-ppt`.

archibate Bundle

Audio generation skill — jingles, beds, voiceover, and sound effects. Routes music requests to Suno V5 / Udio / Lyria, speech to MiniMax TTS / FishAudio / ElevenLabs V3, and SFX to ElevenLabs SFX or AudioCraft. Output is one MP3/WAV file saved to the project folder.

archibate Bundle

Produce a print-grade single-page kami (紙 / 纸) document — warm parchment canvas, ink-blue accent, serif at one weight, no italic, no cool grays. The output reads like a professional white paper or studio one-pager, not an app UI. Multilingual by design (EN · zh-CN · ja). One self-contained HTML file, zero dependencies.

archibate Bundle

Discounted cash flow valuation and intrinsic value analysis for public companies. Use when the brief asks for DCF, fair value, intrinsic value, price target, undervalued or overvalued analysis, or "what is this company worth?"

archibate Bundle

Investment-banking pitch book for strategic alternatives — trading comps, precedent transactions, valuation football field, DCF sensitivity, strategic-options matrix, process recommendation. Built by adapting `assets/template.html` so IB-specific chrome, disclosure bands, and source labels are preserved. Use for Board / sell-side discussion materials. Not a VC fundraising deck (see html-ppt-pitch-deck). Workflow adapted from Anthropic financial-services Pitch Agent (Apache-2.0).

archibate Bundle

Meeting notes page — title bar with attendees, agenda checklist, decisions block, action items table with owners + dates, and a "next meeting" footer. Use when the brief mentions "meeting notes", "minutes", "1:1 notes", "all-hands recap", or "会议纪要".

archibate Bundle

Single-file horizontal-swipe slide deck for a weekly team update — shipped, in flight, blocked, metrics, asks. 6–8 slides. Use when the brief mentions "weekly update", "team update slides", "weekly status", "周报演示".

archibate Bundle

A two-spread digital e-guide preview — page 1 is a cover (display title, author, "What's inside" stats, table of contents teaser); page 2 is a spread (lesson body with pull-quote and a step list). Lifestyle / creator brand tone. Use when the brief asks for an "e-guide", "digital guide", "lookbook", "lead magnet", "creator guide", "playbook", "PDF guide", or "电子指南".

archibate Bundle

Quarterly / monthly financial report — masthead with KPIs, revenue and burn charts, P&L summary table, top-line highlights, and an outlook paragraph. Use when the brief mentions "financial report", "Q3 report", "MRR review", "P&L", or "财报".