Skills
98,873 packaged capabilities and playbooks for agents. Install any of them with one command.
Development
Invoke FIRST, before creating, editing, or deleting components, stories, styles, CSS, themes, colors, or design tokens — anything that changes how the UI looks, no exceptions. Also for starting or previewing Storybook to verify UI, requests to show, browse, or list components, stories, or UI states, and docs, props, or usage lookups.
Build event streaming and real-time data pipelines with Kafka, Pulsar, Redpanda, Flink, and Spark. Covers producer/consumer patterns, stream processing, event sourcing, and CDC across TypeScript, Python, Go, and Java. When building real-time systems, microservices communication, or data integration pipelines.
Comprehensive Supabase expert with access to 2,616 official documentation files covering PostgreSQL database, authentication, real-time subscriptions, storage, edge functions, vector embeddings, and all platform features. Invoke when user mentions Supabase, PostgreSQL, database, auth, real-time, storage, edge functions, backend-as-a-service, or pgvector.
Use this skill when developing applications with Supabase, running the Supabase CLI, designing migrations and RLS policies, testing database behavior, generating client types, deploying the official self-hosted Docker stack, or administering its Postgres, Auth, Storage, Realtime, Functions, API gateway, backups, upgrades, and security. Use it for managed and self-hosted projects. Do not use for generic PostgreSQL work with no Supabase services or conventions.
Use when: the user explicitly asks to analyze requirements, write a spec, produce a detailed design, write a proposal or proposal document, or make a plan following OpenSpec / OPSX; or when a new feature, feature change, process change, API change, data model change, state transition, role process, or module boundary adjustment would change external behavior; or when a single request mixes design and implementation intent.
Use when encountering bugs, unexpected behavior, test failures, or errors during development. Enforces a rigorous 4-phase investigation process that prevents shotgun debugging. Triggers: test failure, runtime error, unexpected behavior, production incident, performance regression.
Production-tested setup for Tailwind CSS v4 with shadcn/ui, Vite, and React. Use when: initializing React projects with Tailwind v4, setting up shadcn/ui, implementing dark mode, debugging CSS variable issues, fixing theme switching, migrating from Tailwind v3, or encountering color/theming problems. Covers: @theme inline pattern, CSS variable architecture, dark mode with ThemeProvider, component composition, vite.config setup, common v4 gotchas, and production-tested patterns.
Use when writing any new code, adding features, or fixing bugs that require code changes. Enforces strict RED-GREEN-REFACTOR cycle with no production code without a failing test first. Triggers: new feature implementation, bug fix, refactoring existing code, adding behavior to existing modules.
Expert guidance for building rich text editors with Tiptap - a headless, framework-agnostic editor built on ProseMirror. Use when creating custom nodes, marks, or extensions for Tiptap, implementing input rules or paste rules, working with the Tiptap commands API, building React integrations with useEditor, extending existing extensions, or creating custom node views.
Type-safe file uploads through tRPC with @falcondev-oss/trpc-typed-form-data. Use when uploading files / FormData through a tRPC procedure, or working with typedFormData(), createTypedFormData(), typedFormDataLink, createTypedFormDataPlugin, the file() validator / FileValue type (a stable alternative to z.file()), or ReactNativeFile / Expo file uploads over tRPC.
Hotwire Turbo for Symfony UX -- SPA-like speed with zero JavaScript. Covers Drive (navigation), Frames (partial page sections), and Streams (multi-target updates). Use when building ajax navigation, lazy-loaded sections, inline editing, pagination without reload, modals from the server, flash messages via streams, or real-time updates via Mercure/SSE. Code triggers: turbo-frame, turbo-stream, data-turbo-frame, data-turbo, data-turbo-action, turbo-stream-source, TurboStreamResponse, <twig:Turbo:Frame>, <twig:Turbo:Stream:Append>, <twig:Turbo:Stream:Replace>, turbo:before-fetch-request. Also trigger when the user asks "how to update part of the page without reload", "how to make navigation feel like SPA", "how to lazy-load a section", "how to do inline editing", "how to push real-time updates from server", "how to use Mercure with Turbo". Do NOT trigger for client-side JS behavior (use stimulus), server-rendered reactive components (use live-component), or reusable static UI (use twig-component).
Use when an extension has to work with a newer or the current TYPO3 LTS, when a version bump breaks compatibility or leaves deprecated APIs behind, when upgrading v11->v12, v12->v13 or v13->v14 (v14.3 LTS is the current target), when one codebase must stay compatible with two versions, when running Extension Scanner, Rector, Fractor or PHPStan against a target version, or when a specific v14 breaker bites - Fluid 5 strict ViewHelpers, HashService removal, the ext_tables.php split.
Configures TYPO3 SEO for EXT:seo, metadata, hreflang, XML sitemaps, robots.txt, canonical URLs, structured data, Core Web Vitals, SEO extensions, and monitoring. Use when working on TYPO3 SEO, sitemap setup, meta tags, robots rules, Open Graph, schema.org, canonical URLs, hreflang, or search visibility.
Unity 6 core concepts and architecture guide. Use when working with GameObjects, Components, Transforms, Scenes, Prefabs, ScriptableObjects, or Unity project structure. Covers the entity-component architecture, object hierarchy, tags, layers, and project conventions. Based on Unity 6.3 LTS documentation.
Vue 3 state management with Pinia using the Composition API, covering setup stores, SSR/Nuxt integration, persistence, and testing. Use when creating or refactoring Pinia stores, deciding what state belongs in a store versus a component, wiring stores into router guards, persisting store state to storage, or testing store actions with @pinia/testing.
Describes and safely edits the vvvv gamma .vl XML format, including document structure, IDs, nodes, pins, pads, links, visible help annotations, exact editor pin geometry, Help Browser registration, and human-preserving layout. Use when generating, parsing, validating, or modifying .vl files programmatically.
Build, define, and import React code components into Webflow via DevLink. Use when creating Webflow code components, configuring declareComponent definitions, working with prop types, styling within Shadow DOM, bundling with Webpack, or troubleshooting DevLink imports.
Develop, modify, review, debug, test, or deploy Webman PHP applications built on Workerman. Use when a project contains workerman/webman-framework or the task explicitly concerns Webman routing, controllers, middleware, configuration, long-lived workers, custom processes, queues, coroutines, databases, or plugins. Do not use for standalone Workerman or ordinary PHP, Laravel, or ThinkPHP projects without Webman.
Build a Wix Headless site fast by wiring SHIPPED, verified @wix/sdk code instead of authoring the integration from recipes. Each Wix business vertical ships a typed, framework-agnostic React core (data layer returning plain DTOs, hooks, headless components) plus an Astro overlay (SSR pages with owner-editable SEO pre-wired) and a build-time REST seed script — the agent scaffolds via the Wix CLI, deploys the shipped code, seeds the backend, designs the presentation layer itself on the shipped hooks (product card/grid, PDP, home, theme), and releases to Wix hosting. Works on Wix-managed Astro (ambient auth, the default) and on any React-based project (Vite, non-Astro) over the public OAuth client id. Verticals: stores/storefront (products, categories, variants, cart, hosted checkout), bookings (services, appointment/class time slots, staff, booking form, checkout-or-place), rentals (rooms, vehicles, gear by the hour or the day: resources, customer-picked length, priced quote, checkout), blog (posts, categories/tags, rich content), cms (structured content collections), forms (schema-driven visitor forms: render, validate, submit), events (listing, RSVP, ticket sales), members (login, gated pages, account), portfolio (project collections, media galleries), pricing-plans (plan grid, hosted purchase), restaurants (menus, online ordering, table reservations), faq (categorized questions and answers, search, a link per question), donations (campaign pages, goal progress, one-time and recurring donations via hosted checkout). Triggers: build me a store/blog/booking/rental/event/restaurant/portfolio/FAQ/donation site fast, take appointments fast, rent out rooms/cars/equipment headless, sell tickets or membership plans headless, collect donations headless, wix headless fast, connect a Wix business app with ready-made SDK code.
Cloudflare Workers Runtime APIs including Fetch, Streams, Crypto, Cache, WebSockets, and Encoding. Use for HTTP requests, streaming, encryption, caching, real-time connections, or encountering API compatibility, response handling, stream processing errors.
Official Zernio API reference for scheduling posts across 15 social media platforms and running paid ads on 7 ad networks. Covers authentication, endpoints, webhooks, ads, and platform-specific features. Use when building with the Zernio Social Media Scheduling API.
Manage and troubleshoot PATH configuration in zsh. Use when adding tools to PATH (bun, nvm, Python venv, cargo, go), diagnosing "command not found" errors, validating PATH entries, or organizing shell configuration in .zshrc and .zshrc.local files.
Generate A2UI 0.8 protocol compliant UI code. Use when building agent-driven interfaces, generating JSONL messages for surfaceUpdate/dataModelUpdate/beginRendering, creating forms, lists, cards, or any UI components that render across web/mobile/desktop platforms.
Use this skill to gate Elixir/OTP systems on BEAM runtime architecture with a pass/fail adversarial review — a single blind reviewer subagent judges a diff or file set against 23 decidable rules covering supervision and failure design (restart strategy vs child dependencies, blocking init, durability in terminate, restart amnesia, unsupervised fire-and-forget), backpressure (cast on externally-driven ingest, push pipelines without demand, silenced or retried call timeouts, unbounded fan-out), event delivery semantics (PubSub treated as durable, jobs enqueued outside the creating transaction, non-idempotent consumers under at-least-once delivery, cross-source ordering, telemetry handlers that block or detach), shared-state races (check-then-act on ETS/Registry, hot reads through one mailbox, persistent_term churn), distribution (global singletons in netsplits, node-local uniqueness assumed cluster-wide), and runtime mechanics (wall-clock durations, sub-binary leaks, minted atoms). Verdicts only, never fixes.
Use this skill to gate SwiftUI code with a pass/fail adversarial review — a single blind reviewer subagent judges a diff or file set against 31 decidable rules — data modeling and observation (@Observable over ObservableObject, @State ownership, task(id:) re-init guards, environment closures and high-frequency values), view update cost (computed-var extraction, whole-model dependencies, init side effects, uncached derivations, structs on rows), structural identity (applyIf branching, AnyLayout), task lifecycle (.task over onAppear+Task, scalar ids, @concurrent offloading), lists and geometry (ForEach view count, AnyView rows, GeometryReader measurement, feedback loops, visualEffect), animation scope, and accessibility (button semantics, style protocols, accessibilityRepresentation, semantic styling, ScaledMetric spacing). Trigger before merging SwiftUI work or to audit agent-authored views. Verdicts only, never fixes; targets without a SwiftUI surface abort.
Use this skill to gate Zod 4 schema code in TypeScript and TanStack Start apps with a pass/fail adversarial review — a single blind reviewer subagent judges a diff or file set against 24 decidable rules covering silent Zod 3-to-4 semantic breaks (defaults, enum-keyed records, boolean coercion), removed APIs (including the z.interface hallucination), unified error customization, deprecated method forms, recursion and codec composition, adapter-free TanStack Start validators, and packaging. Trigger it before merging Zod schema work, when asked to gate, adversarially review, or pass/fail Zod usage, or as a currency check that agent-authored schemas use the latest Zod 4.x surface. It renders verdicts only and never fixes the work; for teaching-style Zod feedback use the curated zod skill instead.
Work with raster and imagery data using ImageryLayer, ImageryTileLayer, pixel filtering, raster functions, multidimensional data, and oriented imagery. Use for satellite imagery, elevation data, and scientific raster datasets.
Build portable, first-person colored ASCII city engines and small GIS-derived city packs. Use when designing terrain-following walking, raycast character rendering, city-provider schemas, or reproducible public-GIS ingestion. Do not use for conventional 3D/WebGL games, multi-level interiors, general GIS analysis, or committing full-resolution GIS archives.
Complete toolkit for Huawei Ascend NPU model conversion and end-to-end inference adaptation. Workflow 1 auto-discovers input shapes and parameters from user source code. Workflow 2 exports PyTorch models to ONNX. Workflow 3 converts ONNX to .om via ATC with multi-CANN version support. Workflow 4 adapts the user's full inference pipeline (preprocessing + model + postprocessing) to run end-to-end on NPU. Workflow 5 verifies precision between ONNX and OM outputs. Workflow 6 generates a reproducible README. Supports any standard PyTorch/ONNX model. Use when converting, testing, or deploying models on Ascend AI processors.
Master authentication and authorization patterns including JWT, OAuth2, session management, and RBAC to build secure, scalable access control systems. Use when implementing auth systems, securing APIs, or debugging security issues.
Build conversational multi-agent systems with Microsoft AutoGen. AssistantAgent, UserProxyAgent, GroupChat, code execution, nested chats, cancellation tokens, tool integration, and MCP support. Use when building conversation-driven multi-agent systems or comparing agent frameworks. Do not use this skill for unrelated requests; route to the nearest named specialist.
Use when testing Bevy 0.20 with `App::update`, `TimeUpdateStrategy`, `FixedUpdate`, `MessageCursor`, or `On<E>` observers: deterministic stepping, async-task draining with `poll_once` and no sleeps, headless worlds, and capture-based visual regression.
Builds, restructures, and standardizes React components according to project conventions (placement, folder/file naming, exports, props patterns). Use when adding components or when reorganizing existing components during refactors, migrations, or component moves.
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.