Skills
97,222 packaged capabilities and playbooks for agents. Install any of them with one command.
Development
Use when creating, refreshing or repairing `.agents/ue-project-context.md`, the project document every other UE skill reads first. Also use when the user says 'project context', 'set up context', 'UE context', 'scan my project', 'onboard the agent to my project', 'update project context', 'configure project', 'what engine version is this project on', 'which plugins do we have enabled', or complains that UE advice keeps coming out generic. For Build.cs and Target.cs mechanics, see ue-module-build-system; for naming and API-macro conventions, see ue-cpp-foundations; for GAS specifics, see ue-gameplay-abilities.
AI demos and GPU compute with Gradio Spaces and Hugging Face Spaces ZeroGPU. Use when writing or reviewing code that uses `@spaces.GPU`, configuring `python_version` or `requirements.txt` for a ZeroGPU Space, or handling ZeroGPU-specific code constraints — pickle-based process isolation, `gr.State` semantics across the worker boundary, no `torch.compile` (use AoTI instead), CUDA wheel-only builds (no `nvcc` at build or runtime), large vs xlarge sizing, and dynamic duration callables. Make sure to use this skill whenever the user mentions ZeroGPU, `@spaces.GPU`, or the `spaces` Python package, or hits ZeroGPU-specific code errors like `PicklingError` across the worker boundary, `illegal duration`, or `flash-attn` wheel-build failures — even when the user does not explicitly ask for ZeroGPU coding guidance. Trigger on `import spaces` or `@spaces.GPU` in code.
Create distinctive, high-converting landing pages that combine proven conversion elements with exceptional design quality. Build beautiful, memorable landing pages using Next.js 14+ and ShadCN UI that avoid generic AI aesthetics while following the 11 essential elements framework.
SwiftUI ↔ Figma translation. Use whenever the user mentions Swift, SwiftUI, iOS, iPhone, or iPad — in EITHER direction — translating a Figma design into SwiftUI (design → code), or pushing SwiftUI views / screens / tokens back into a Figma file (code → design). Triggers on phrases like 'implement this Figma design in SwiftUI', 'build this screen in Swift', 'push this SwiftUI view to Figma', 'mirror my Swift code in a Figma file', or whenever a Figma URL appears alongside `.swift` files / an `.xcodeproj`. Routes to a direction-specific reference doc; loads alongside `figma-use` for the code → design path.
Prepare and publish GitHub releases. Sanitizes code for public release (secrets scan, personal artifacts, LICENSE/README validation), creates version tags, and publishes via gh CLI. Trigger with 'release', 'publish', 'open source', 'prepare for release', 'create release', or 'github release'.
Use for building, debugging, integrating, migrating, or documenting OpenUI, OpenUI Lang, Agent Interface, OpenUI Cloud, @openuidev packages, streaming generative UI rendering, component libraries, existing-project Cloud integration, self-hosted-to-Cloud migration, migrations from JSON UI formats, Cloud tools (web/image search, artifacts), remote MCP servers, custom function tools and tool loops, and multi-user or multi-app identity (frontend tokens, app_id/user_id, conversation APIs, Responses metadata).
Use when writing or running Unreal Engine tests, adding logging, or profiling a build. Also use when the user mentions 'UE_LOG', 'log category', 'DEFINE_LOG_CATEGORY', 'UE_LOGFMT', 'verbosity', 'check', 'ensure', 'ensureMsgf', 'verify', 'IMPLEMENT_SIMPLE_AUTOMATION_TEST', 'automation test', 'TEST_CLASS', 'CQTest', 'AFunctionalTest', 'latent command', 'Unreal Insights', 'TRACE_CPUPROFILER_EVENT_SCOPE', 'TRACE_BOOKMARK', 'stat unit', 'SCOPE_CYCLE_COUNTER', 'memreport', 'DrawDebugLine', 'UE_VLOG', 'gameplay debugger', 'ShowDebug', 'console command', 'CVar', or 'why is my frame time bad'. For module and target wiring, see ue-module-build-system; for editor tooling, see ue-editor-tools.
Testing guide for Capacitor apps and plugins. Covers web-layer unit and component tests with Vitest and mocked Capacitor plugins (`vi.mock('@capacitor/core')`, `registerPlugin`), Playwright for the web build, Appium E2E with NATIVE_APP / WEBVIEW context switching, native plugin unit tests with Swift Testing vs XCTest (what can migrate, `CAPPluginCall` patterns, `xcodebuild test` on a simulator) and Android JUnit, plus an agent-driven verification loop on simulators and devices (build, install, launch, screenshot, UI hierarchy, tap, logs) with `xcrun simctl`, `xcrun devicectl`, `adb`, Xcode MCP device tools, and live reload via `npx cap run --url` (Capacitor 9) or `-l --host --port` (Capacitor 8). Use when adding tests, mocking plugins, asking “does it work on device,” verifying a UI change on a simulator, migrating XCTest to Swift Testing, or setting up test CI. Do not use for crash log capture (ios-android-logs), WebView debugging sessions (debugging-capacitor), or build pipelines (capacitor-ci-cd).
Use this skill to get documentation for third-party APIs, SDKs or libraries before writing code that uses them to ensure you have the latest, most accurate documentation. This is a better way to find documentation than doing web search. This includes when a user asks for tasks like "use the OpenAI API", "call the Stripe API", "use the Anthropic SDK", "query Pinecone", or any other time the user asks you to write code against an external service and you need current API reference. Fetch the docs with chub before answering, rather than relying on your pre-trained knowledge, which may be outdated because of recent changes to these APIs. Be sure to use this skill when the user asks for the latest docs, latest API behavior, or explicitly mentions chub or Context Hub. Ensure `chub` is available, run `chub --help`, then follow the instructions there.
Triage new issues in the Sentry `javascript` project by archiving non-actionable noise. Use when asked to "triage issues", "triage the javascript project", "archive non-actionable issues", "triage new frontend issues", or "clean up the sentry/javascript queue". Operates only on the sentry/javascript project, only archives (never resolves), and always archives with `untilEscalating`.
Use for .NET / C# binary reverse engineering. Use when the target is a .NET assembly (PE header contains CLR, .exe/.dll managed program), C# compiled artifact (including NativeAOT), red-team Sharp* tools (Rubeus / SharpHound / SharpHound, etc.), .NET obfuscated program (ConfuserEx / SmartAssembly / Babel / Eazfuscator), or .NET loader / info-stealer / packed malware. Prefer dnSpyEx + de4dot; integrate dnSpy MCP when AI needs to operate directly. Not for pure native binaries (use reverse-engineering / ida-reverse).
Expert in Windows UI Automation (UIA) and Win32 APIs for desktop automation. Specializes in accessible, secure automation of Windows applications including element discovery, input simulation, and process interaction. HIGH-RISK skill requiring strict security controls for system access.
Utility skill to detect Magento development environment and determine command wrapper. This skill should be used by other skills that need to execute shell commands in the Magento environment. It detects Warden, docker-magento, DDEV, and local environments and provides the appropriate command wrapper.
Use when reverse-engineering frontend JavaScript with js-reverse-mcp, including signature-flow tracing, page observation and evidence collection, runtime sampling, local environment setup for reproduction, and evidence-based output. Prioritize js-reverse_* tools available in the current environment; integrate with jshookmcp when stronger browser/CDP/Hook capabilities are needed
Fixes notch, Dynamic Island, home indicator, display cutout, and system bar overlap in Capacitor apps. Covers `viewport-fit=cover` + `env(safe-area-inset-*)`, the Capacitor 8 SystemBars core plugin (`insetsHandling`, injected `--safe-area-inset-*` CSS variables for Android WebView < 140, removal of `android.adjustMarginsForEdgeToEdge`), Android 15/16 enforced edge-to-edge (`overlaysWebView` and `backgroundColor` of @capacitor/status-bar no longer work at targetSdk 36), iOS `contentInset`, and insets that change at runtime on rotation, iPad/foldable resizable windows. Use when headers sit under the status bar, tab bars hide behind the gesture bar, `env()` returns 0 on Android, or layout broke after upgrading to Capacitor 8 / targetSdk 35+. Do not use for keyboard overlap (capacitor-keyboard), Ionic/Konsta component theming (ionic-design, konsta-ui), Tailwind utility setup (tailwind-capacitor), or iOS multi-window/resizability adoption (capacitor-ios-resizability).
Use when the user wants to add or optimize structured data (Schema.org, JSON-LD). Also use when the user mentions "schema," "structured data," "JSON-LD," "rich results," "rich snippets," "Google rich snippets," "featured snippet schema," "add schema to page," "missing structured data," "schema validation error," "Schema Markup Validator," "Google Rich Results Test," "FAQ schema," "Article schema," "Organization schema," "JobPosting," "HowTo," "Event," "SoftwareApplication," "BreadcrumbList," "WebSite," "Recipe," "Product," or "Dataset." For SERP feature types and zero-click patterns, use serp-features. For AI search visibility strategy (not markup), use generative-engine-optimization. For HowTo step sections (placement, copy, vs FAQ), use howto-section-generator.
Compare and update the `computedHash` in the root `skills-lock.json` against the latest state of the upstream repository. Skip cloning entries whose `source` does not exactly match `Fandhe-AI/<repo>` (safeguard). Do not touch `skills-lock.json` files inside submodules. Use after merging contribute-skill or syncing upstream, or when asked to "update hashes" or "sync skills-lock".
Author or revise readable, flat-world Three.js game levels. Use for movement and camera routes, collision and navigation, encounter zones, landmarks, objectives, pickups, motivated lighting, visibility, deterministic level data, or desktop and mobile playthrough verification.
Write CSP-compatible Alpine.js components for Hyvä themes in Magento 2. This skill should be used when the user wants to create Alpine components, add interactivity to Hyvä templates, write JavaScript for Hyvä themes, or needs help with Alpine.js patterns that work with Content Security Policy. Trigger phrases include "create alpine component", "add interactivity", "alpine for hyva", "x-data component", "csp compatibility", "csp compliant javascript".
Plan, create, integrate, or audit a hybrid asset pipeline for a Three.js or web game. Use when choosing among imported meshes, procedural 3D geometry, AI-generated reference art, 2D UI media, sprites, VFX, and performance-ready runtime asset delivery.
Use when writing or fixing Build.cs, Target.cs, .uproject or .uplugin files, creating a module or plugin, or resolving an Unreal build error. Also use when the user mentions 'unresolved external symbol', 'LNK2019', 'cannot open include file', 'C1083', 'MODULENAME_API', 'PublicDependencyModuleNames', 'IWYU', 'PCHUsage', 'IMPLEMENT_MODULE', 'IMPLEMENT_PRIMARY_GAME_MODULE', 'LoadingPhase', 'circular dependency', 'Missing precompiled manifest', 'EngineAssociation', 'IncludeOrderVersion', 'Live Coding'. For UCLASS/UPROPERTY rules see ue-cpp-foundations; for editor modules see ue-editor-tools; for Game Feature plugins see ue-game-features.
Use when work involves Apple's system surfaces rather than your own UI or data — Siri and Shortcuts, widgets, Live Activities, in-app purchase, localization, privacy prompts, alarms, timers, calendar, reminders, contacts, SharePlay, VoIP and CallKit, accessory pairing, weather, Spotlight indexing, background tasks, Background Assets, push notifications, or push notifications on networks with no internet.
Use when creating or developing, before writing code or implementation plans - refines rough ideas into fully-formed designs through collaborative questioning, alternative exploration, and incremental validation. Don't use during clear 'mechanical' processes
Best practices for building and maintaining applications with PowerSync: Cloud and self-hosted setup, sync configuration, client SDK usage, backend integration (Supabase, custom Postgres, MongoDB, Azure DocumentDB, MySQL, MSSQL), schema changes, watch and reactive queries (useQuery), attachments, the upload queue, and debugging. Use this skill whenever the user mentions PowerSync, a @powersync/* package (@powersync/web, @powersync/react-native, @powersync/node), the powersync Flutter/Dart package, the powersync Rust crate, wa-sqlite, offline-first sync, local-first architecture, sync rules, sync streams, uploadData, fetchCredentials, disconnectAndClear, logout or user switching in a synced app, real-time data replication, Electric Cloud migration, Electric Shapes, an app stuck on Syncing, data not syncing, or wants to add offline-capable sync to a mobile or web app, even if they do not explicitly name PowerSync.
React Flow (@xyflow/react) for workflow visualization with custom nodes and edges. Use when building graph visualizations, creating custom workflow nodes, implementing edge labels, or controlling viewport. Triggers on ReactFlow, @xyflow/react, Handle, NodeProps, EdgeProps, useReactFlow, fitView.
Use when writing C++ for materials or rendering — dynamic material instances, material parameter collections, render targets, scene capture, post process, decals, Nanite, Lumen, MegaLights, Substrate. Also use when the user mentions 'MID', 'CreateDynamicMaterialInstance', 'SetScalarParameterValue', 'UMaterialInstanceDynamic', 'material parameter collection', 'UTextureRenderTarget2D', 'DrawMaterialToRenderTarget', 'scene capture', 'post process volume', 'FPostProcessSettings', 'bOverride_', 'blendable', 'decal', 'custom depth stencil', 'Nanite', 'Lumen' or 'global shader'. For Niagara materials, see ue-niagara-effects; for UMG materials, see ue-ui-umg-slate.
Choose the right Parallel API and configuration for cost, latency, and answer quality. Use when adding live web data to an app: current events and prices, a cited answer in a chat, grounding an agent in sources it can read in full, reading a URL or PDF, deep research reports, researching or enriching every row of a list or CRM. Use when picking among Search and Extract, Responses, and Task, or when choosing a search mode, reasoning effort, or Task processor. Also use when an integration is too slow, costs more than expected, or misses answers that are on the web.
React Native and Expo patterns for building performant mobile apps. Covers list performance, animations with Reanimated, navigation, UI patterns, state management, platform-specific code, and Expo workflows. Use when building or reviewing React Native code. Triggers: 'react native', 'expo', 'mobile app', 'react native performance', 'flatlist', 'reanimated', 'expo router', 'mobile development', 'ios app', 'android app'.
Guides the agent through setting up and using push notifications in Capacitor apps using Firebase Cloud Messaging via the @capacitor-firebase/messaging plugin. Covers Firebase project setup, plugin installation, platform-specific configuration (Android, iOS, Web), APNs certificate setup, requesting permissions, retrieving FCM tokens, listening for notifications, topic subscriptions, notification channels, and testing. Do not use for local notifications, non-Firebase push providers, migrating Capacitor apps or plugins, or non-Capacitor mobile frameworks.
Restart a project or artifact from v0 while preserving only proven lessons, contracts, gates, vocabulary, real-surface tests, and negative corpus. Use when the foundation is wrong, accumulated code is misleading progress, or a new pass should learn from the old one without inheriting its accidental architecture.
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.