Skills
100,344 packaged capabilities and playbooks for agents. Install any of them with one command.
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Use for EU AI Act (Regulation 2024/1689) compliance work: classifying an AI system's risk tier, planning the Art. 43 conformity route and Annex IV file, or listing obligations by role. Runs ai_system_risk_classifier.py, conformity_assessment_planner.py and ai_act_obligation_tracker.py, citing Articles.
Make game-ready 2D characters, creatures, props, icons and FX as master stills, sprite sheets or animation clips. Plan size, motion and finish; generate the art (image generation is the default, through generate2dmedia route_media.py - the API when a key is configured, else the local Codex or Grok CLI); approve one master still per character; then key, slice, register, scale, palette, QA and export frames for a game engine (Aseprite JSON, Godot SpriteFrames or Sprite3D). HD finish by default, pixel finish on request. Character animation is one image-to-video clip per action from the master (video2dsprite); sheets are for FX, icons and props. Use for sprites, masters, sheets, frame-by-frame animation and packaging frames from any source. Not for maps, tiles or backgrounds (generate2dmap), video clips (video2dsprite), code-drawn art (codeart2d, only on request) or calling an image or video API by itself (generate2dmedia)
When the user wants help with Quality Score analysis, diagnosing low Quality Scores, improving Expected CTR, Ad Relevance, or Landing Page Experience, understanding Ad Rank, reducing CPCs through Quality Score, running a Quality Score audit, or tracking Quality Score over time. Triggers on 'quality score', 'QS', 'expected CTR', 'ad relevance', 'landing page experience', 'ad rank', 'low quality score', 'quality score audit', 'improve quality score', 'CPC too high', or 'below first page bid'. For search campaign structure and RSAs see google-ads-search. For keyword strategy see google-ads-keywords. For landing page optimization see page-cro.
Delegate coding tasks to Google Jules AI agent for asynchronous execution. Use when user says: 'have Jules fix', 'delegate to Jules', 'send to Jules', 'ask Jules to', 'check Jules sessions', 'pull Jules results', 'jules add tests', 'jules add docs', 'jules review pr'. Handles: bug fixes, documentation, features, tests, refactoring, code reviews. Works with GitHub repos, creates PRs.
An AI-powered image generation and editing tool for creating high-quality product images. Trigger this skill when the user asks to generate or create images, edit photos, use text-to-image or image-to-image, replace backgrounds, transform styles, replace objects in images, composite products into scenes, change models, create any kind of AI-generated visual content, or mentions AI drawing, image generation, text-to-image, image-to-image, background replacement, style transfer, product image creation, or AI image editing. Trigger it even if the user does not explicitly say “AI image” whenever the request involves generating, modifying, or transforming images.
Provides domain-specific best practices for Node.js development with TypeScript, covering type stripping, async patterns, error handling, streams, modules, testing, performance, caching, logging, and more. Use when setting up Node.js projects with native TypeScript support, configuring type stripping (--experimental-strip-types), writing Node 22+ TypeScript without a build step, or when the user mentions 'native TypeScript in Node', 'strip types', 'Node 22 TypeScript', '.ts files without compilation', 'ts-node alternative', or needs guidance on error handling, graceful shutdown, flaky tests, profiling, or environment configuration in Node.js. Helps configure tsconfig.json for type stripping, set up package.json scripts, handle module resolution and import extensions, and apply robust patterns across the full Node.js stack.
Custom Apex adapter generation for Salesforce Connect — connects any external REST API to Salesforce as live, queryable External Objects without ETL or copying. TRIGGER when: connecting a non-standard external API, writing a DataSource.Provider/Connection or a `.cls`/`.cls-meta.xml` custom adapter class, adding a `.namedCredential-meta.xml` for the adapter's callout, surfacing external data as records, "custom adapter", "ExternalId field", "DataSource namespace", or whether custom Apex fits. DO NOT TRIGGER when: a standard adapter is already configured (OData, Snowflake), for copy/bulk-sync (use platform-data-manage), or for Apex callouts outside Connect (use platform-apex-generate or integration-connectivity-generate).
This skill should be used when the user asks about "fault tolerance", "resilience", a "circuit breaker", "graceful degradation", "retry storm" or "thundering herd on recovery", "exponential backoff with jitter", "timeout", "bulkhead", a "single point of failure" (SPOF), "failover", or "rate limiting" (token bucket / leaky bucket / sliding window). Use it whenever a design must keep working through node crashes, slow dependencies, traffic spikes, or partial outages — i.e. any time the answer to "what happens when this breaks?" is missing, even if the user doesn't say "resilience".
Use when building 3D levels and worlds in Godot 4.7: third-person or FPS controller, player stuck on stairs, spring arm camera clipping, blockout with CSG, GridMap and MeshLibrary, terrain (heightmap, HeightMapShape3D, Terrain3D regions, textures, painting), scattering trees with MultiMesh, streaming a big world, procedural meshes with SurfaceTool, Jolt physics settings, importing GLB or glTF from Blender or AI generators (Scenario, Tripo, Meshy, Hitem3D), import scripts, name suffixes, model facing, collision generation, LODs.
Generate Arduino and embedded C++ snippets for sensors, actuators, buses, state machines, timing, data logging, and hardware abstraction. Use when a user requests implementation code and provide the exact board, framework, toolchain, pins, voltage, memory, and library versions first. Bundled templates target UNO, ESP32, and RP2040; document unsupported board or vendor-framework behavior instead of guessing.
Implement VoIP calling with CallKit and PushKit. Use when building incoming/outgoing call flows, registering for VoIP push notifications, configuring CXProvider and CXCallController, handling call actions, coordinating audio sessions, or creating Call Directory extensions for caller ID and call blocking.
React Router performance and architecture patterns. Use when writing loaders, actions, forms, routes, or working with React Router data fetching. Triggers on tasks involving React Router routes, data loading, form handling, or route organization.
Patent image similarity search powered by PatSnap, supporting design patent searches by image URL. Trigger this skill when the user mentions patent image search, design patent infringement checks, design patent search, visual patent lookup, searching patents by image, patent similarity detection, patent image matching, Locarno classification search, checking whether a product design infringes an existing patent, patent image search, design patent search, patent reverse image search, design patent lookup, PatSnap, or patent similarity. Trigger it even if the user does not explicitly mention “PatSnap” or “patent image,” as long as they need to find similar design patents from an image or assess design patent risk. This skill supports design patents only; use linkfox-zhihuiya-utility-patent-image-search for utility model patent searches.
Add Apple Pencil drawing, canvas views, tool pickers, and ink serialization using PencilKit. Use when building drawing apps, annotation features, handwriting capture, signature fields, or any Apple Pencil-powered experience on iOS/iPadOS/visionOS.
Provisions and configures Render Key Value (Redis-compatible Valkey 8) instances for caching, session storage, and job queues. Use when the user needs Key Value, uses Redis or Valkey, or needs a cache, session store, or job queue backend, or needs to configure maxmemory policy, ipAllowList, connection strings, or internal vs external access. Trigger terms: Key Value, Redis, Valkey, cache, session store, REDIS_URL, maxmemory, ipAllowList, allkeys-lru, noeviction.
Use this skill when the user needs to “clarify requirements,” distinguish “functional vs non-functional requirements,” “scope the problem,” figure out “what questions should I ask,” state the “requirements for <X>,” or otherwise pin down a vague design prompt before building. It turns an ambiguous request into functional requirements, non-functional constraints, and an explicit out-of-scope. Use it whenever a prompt is broad or underspecified (“design Twitter,” “build a chat app”), even if the user doesn't say “requirements”
Query Stream data and run CLI operations against Chat, Video, Feeds, and Moderation: list channels, list calls, show flagged messages, find users, query any Stream resource. Run stream api / stream config / stream auth commands. Install the Stream CLI binary. Use when the user gives operational verbs ('list', 'show', 'find', 'check', 'query') with Stream nouns, or invokes the CLI literally.
Systematically gather, score, and format client testimonials. Use when someone needs social proof, wants to collect feedback, needs to turn happy clients into public advocates, or asks for help requesting or drafting a testimonial.
Generate concise (3-4 page), focused medical treatment plans in LaTeX/PDF format for all clinical specialties. Supports general medical treatment, rehabilitation therapy, mental health care, chronic disease management, perioperative care, and pain management. Includes SMART goal frameworks, evidence-based interventions with minimal text citations, regulatory compliance (HIPAA), and professional formatting. Prioritizes brevity and clinical actionability.
Create user-centered, accessible interface copy (microcopy) for digital products including buttons, labels, error messages, notifications, forms, onboarding, empty states, success messages, and help text. Use when writing or editing any text that appears in apps, websites, or software interfaces, designing conversational flows, establishing voice and tone guidelines, auditing product content for consistency and usability, reviewing UI strings, or improving existing interface copy. Applies UX writing best practices based on four quality standards — purposeful, concise, conversational, and clear. Includes accessibility guidelines, research-backed benchmarks (sentence length, comprehension rates, reading levels), expanded error patterns, tone adaptation frameworks, and comprehensive reference materials.
Guide for building, configuring, and deploying microfrontends on Vercel. Use this skill when the user mentions microfrontends, multi-zones, splitting an app across teams, independent deployments, cross-app routing, incremental migration, composing multiple frontends under one domain, microfrontends.json, @vercel/microfrontends, the microfrontends local proxy, or path-based routing between Vercel projects. Also use when the user asks about shared layouts across projects, navigation between microfrontends, fallback environments, asset prefixes, or feature flag controlled routing
React and Next.js performance optimization guidelines from Vercel Engineering. This skill should be used when writing, reviewing, or refactoring React/Next.js code to ensure optimal performance patterns. Triggers on tasks involving React components, Next.js pages, data fetching, bundle optimization, or performance improvements.
Use when you need to add or evaluate Maven dependencies that improve code quality or domain modeling — including nullness annotations (JSpecify), static analysis (Error Prone + NullAway), functional programming (VAVR), architecture testing (ArchUnit), or money and currency support (JavaMoney) — and want a consultative, question-driven approach that adds only what you actually need. This should trigger for requests such as Add Maven dependencies; Add JSpecify nullness dependencies; Add Error Prone NullAway dependencies; Add VAVR functional dependencies; Add ArchUnit architecture testing dependencies; Add JavaMoney dependencies. Part of Plinth Toolkit
Expert in designing community strategies that align with business goals while creating genuine value for members. Covers community-market fit, positioning, culture design, governance models, and long-term roadmapping. Understands that great communities are intentionally designed, not accidentally grown. Use when "community strategy, build a community, community vision, community culture, community roadmap, community-market fit, why community," are mentioned
Diagnoses the health of a project's PostHog SDK integrations — which SDKs are out of date and how to fix them. Use when a user asks about PostHog SDK versions, outdated SDKs, upgrade recommendations, “SDK health,” “SDK doctor” (the former name), or when events or features seem off and it might be due to an old SDK.
Expert patterns for AnimationPlayer including track types (Value, Method, Audio, Bezier), root motion extraction, animation callbacks, procedural animation generation, call mode optimization, and RESET tracks. Use for timeline-based animations, cutscenes, or UI transitions. Trigger keywords: AnimationPlayer, Animation, track_insert_key, root_motion, animation_finished, RESET_track, call_mode, animation_set_next, queue, blend_times.
Expert guidance on the Google Agent Development Kit (ADK) for Python. Use this skill when the user asks about building agents, using tools, streaming, callbacks, tutorials, deployment, or advanced architecture with the Google ADK in Python.
Control smart-home accessories and commission Matter devices using HomeKit and MatterSupport. Use when managing homes, rooms, and accessories; creating action sets or triggers; reading accessory characteristics; onboarding Matter devices; or building a third-party smart-home ecosystem app.
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.