Skills
98,284 packaged capabilities and playbooks for agents. Install any of them with one command.
Development
Build Hotwire navigation and content-discovery flows: Turbo Frame pagination, tabbed navigation, lazy loading, faceted filtering/search, cache lifecycle, scroll restoration, and visit/render control. Prefer this skill when the core problem is request/response navigation state and browser history behavior. Use hwc-forms-validation for form validation and inline edit flows, hwc-realtime-streaming for WebSocket/Turbo Stream push updates, hwc-media-content for image/video/audio features, hwc-ux-feedback for generic loading/progress/transition polish, and hwc-stimulus-fundamentals for Stimulus APIs not centered on navigation.
Meta Quest Passthrough Camera Access (PCA) for Unity — access the forward-facing RGB cameras on Quest 3 / Quest 3S to feed Computer Vision and Machine Learning pipelines. Use when capturing the passthrough camera image/texture, reading the camera pose and intrinsics, projecting camera pixels into world space via `PassthroughCameraAccess.ViewportPointToRay`, wiring camera frames into ML/CV models, or reasoning about resolution, permissions, vendor tags, and the pinhole/principal-point model. For projecting the image onto a flat world-space surface (frustum-slice quad / image-plane overlay) see references/principal-point-offset.md; for placing 2D ML detections as world-space 3D bounding boxes see references/detection-bounding-boxes.md. Skip if the user only wants to cast the user's POV (use the Media Projection API instead) or is doing screen-space-only overlays.
Bootstrap, configure, extend, and operate ObjectStack runtimes. Covers project setup (`defineStack`, drivers, scaffolding), declaring platform capabilities (`requires:` — which service plugins boot), plugin and service development (PluginContext, DI, kernel hooks like `kernel:ready`), and operations (CLI commands, migrations, deployment, test harnesses via LiteKernel). Use when the user is writing `objectstack.config.ts`, building a plugin or driver, turning a platform capability on, mounting the Hono HTTP layer, running `os` CLI commands, or planning deployment. Do not use for data schema design (see objectstack-data) or query patterns (see objectstack-query); data lifecycle hooks (beforeInsert / afterUpdate) belong in objectstack-data — only kernel / service-level events live here
Builds and tunes PostgreSQL retrieval with pgvector, full-text search, pg_trgm, hybrid fusion, ParadeDB BM25, and reranking. Use for search/RAG implementation, weak results, filtered ANN scans, non-English corpora, or retrieval evaluation. For general schema, RLS, and query tuning unrelated to retrieval, use Supabase's supabase-postgres-best-practices skill
Knowledge for helping users set up the Remotion Superpowers plugin. Covers API key acquisition, dependency installation, Remotion's official Agent Skills (a required companion), and MCP server troubleshooting. Use when running /setup or when a user has issues with MCP connections
Implements and customizes the Syncfusion .NET MAUI Button (SfButton) control. Use when working with MAUI buttons, SfButton implementation, button customization, or visual states. Covers button icons, background images, RTL support, Liquid Glass effects, custom button views, button styling, events, and checkable buttons.
Write, review, debug, and test idiomatic Tolk smart contracts for The Open Network (TON). Use when building or modifying .tolk contracts, designing TON storage/message/getter schemas, implementing internal/external/bounced message flows, using cells, TL-B-compatible serialization, typed maps, Jettons, NFTs, wallets, vesting, multisig, DNS, or choosing Tolk tooling and tests
Frontend UI/UX design intelligence - activate FIRST when user requests beautiful, stunning, gorgeous, or aesthetic interfaces. The primary skill for design decisions before implementation. 50 styles, 21 palettes, 50 font pairings, 20 charts, 8 stacks (React, Next.js, Vue, Svelte, SwiftUI, React Native, Flutter, Tailwind). Actions: plan, build, create, design, implement, review, fix, improve, optimize, enhance, refactor, check frontend UI/UX code. Projects: website, landing page, dashboard, admin panel, e-commerce, SaaS, portfolio, blog, mobile app, .html, .tsx, .vue, .svelte. Elements: button, modal, navbar, sidebar, card, table, form, chart. Styles: glassmorphism, claymorphism, minimalism, brutalism, neumorphism, bento grid, dark mode, responsive, skeuomorphism, flat design. Topics: color palette, accessibility, animation, layout, typography, font pairing, spacing, hover, shadow, gradient.
Find the map/territory gap BEFORE it gets expensive. Invoke when starting a non-trivial task in unfamiliar territory (new module, new technology, work the user has not done before), when acceptance criteria are "I'll know it when I see it", when the user struggles to describe what they want, or when a long-horizon task came back wrong and a blind retry is tempting. Not for typo-level fixes or tasks with fully objective acceptance criteria.
Vue 3 performance optimization and best practices guidelines for modern frontend applications. This skill should be used when writing, reviewing, or refactoring Vue 3 code to ensure optimal performance patterns, proper Composition API usage, and modern development practices. Triggers on tasks involving Vue 3 components, Composition API, reactivity, state management, or performance optimization
Expert in Keboola configuration schemas, conditional fields (options.dependencies), UI elements, sync actions, and schema testing. Can launch schema-tester and run Playwright tests. Specialized for configSchema.json and configRowSchema.json development.
Unix-composable CLI design patterns. Use when building CLI tools, designing command trees, implementing output layers, or testing CLI behavior. Covers stream separation (stdout/stderr), format flags (--json/--plain), exit codes, TTY detection, composability, and error design. Language-agnostic principles; TypeScript implementation patterns in resources/. For API design (REST, HTTP), see api-design.
Use when a developer wants to deploy, host, or run a Slack app somewhere it keeps working after the local process stops, or mentions Railway, Heroku, `railway up`, `git push heroku`, `slack deploy`, a `deploy` hook in `.slack/hooks.json`, hosting a Socket Mode or Request URL (HTTP) Bolt app, deploying from Windows, graduating an app out of a developer sandbox, or tearing down a deployed app.
EAS service (paid). Helps understand and write EAS workflow YAML files for Expo SDK 57 projects. Use this skill when the user asks about CI/CD or workflows in an Expo or EAS context, mentions .eas/workflows/, or wants help with EAS build pipelines or deployment automation.
EAS service (paid). Deploy Expo SDK 57 apps to app stores with EAS: build and submit to the iOS App Store, Google Play Store, and TestFlight; configure eas.json build and submit profiles; manage app versions and build numbers; and publish App Store metadata and ASO. Use whenever the user wants to deploy, release, or ship an app to production or app stores, is preparing a production build, running eas build or eas submit, shipping to TestFlight, bumping version or build numbers, or setting up store listing metadata. For deploying an Expo website or API routes, use the eas-hosting skill.
Enqueues jobs, configures retry policies, sets concurrency limits, and orders messages via named standard or FIFO queues. Use when building background job workers, task queues, message queues, async pipelines, or any pattern needing guaranteed delivery with exponential backoff and dead-letter handling.
Orchestrates durable multi-step workflow pipelines on the iii engine. Use when building order fulfillment, data pipelines, task orchestration, or any sequential process requiring retries, backoff, step tracking, scheduled cleanup, or dead letter queue (DLQ) handling.
Upgrading a MapLibre GL JS app from v5 to v6 — the ESM-only build, the removed default export, CommonJS require() breakage, the styleimagemissing/setMissingStyleImageResolver change, the removal of the internal map.transform, the MapDataEvent → MapSourceDataEvent/MapStyleDataEvent split, and the bundler-only setWorkerUrl() requirement. Use when a v5 app breaks after upgrading to v6, or before pinning a v6 install.
Use when building or editing any AI feature in n8n: AI Agents, Text Classifier, Information Extractor, Sentiment Analysis, Summarization Chain, Basic LLM Chain, embeddings, vector stores, single one-shot LLM calls, or AI media generation (image / audio / video) via the native LangChain provider nodes. Triggers on any `@n8n/n8n-nodes-langchain.*` node, "agent", "chat assistant", "LLM with tools", "tool calling", "fromAi", "system prompt", "memory window", "structured output", "outputParser", "function calling", "RAG", "vector store", "embeddings", "classify with AI", "extract fields with LLM", "sentiment analysis", "summarize with LLM", "single LLM call", chat triggers with files, AI image / video / audio generation, or any multi-turn or one-shot LLM behavior.
ALIAS — merged into the unified `obsidian` skill (v2.0). Use the `obsidian` skill instead. Build, validate, and publish Obsidian plugins. Redirects to obsidian skill for plugin development, ESLint rules, boilerplate generation, accessibility, and submission validation.
Product type development in Bagisto. Activates when creating custom product types, defining product behaviors, or implementing specialized product logic. Use references: @config (product type configuration), @abstract (AbstractType methods), @build (complete subscription implementation).
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.