Skills
97,222 packaged capabilities and playbooks for agents. Install any of them with one command.
Development
Applies QML best practices when producing or working with QML source code. Use whenever QML code is the primary subject: writing, reviewing, fixing, refactoring, optimizing, or debugging QML files, components, or bindings. Do NOT trigger for purely conversational QML questions where no code is produced or examined (e.g. "explain how anchors work").
Standards and conventions for the @sasjs/core SAS macro library (mf_*, mp_*, mm*, ms_*, mv_* macros). Use when writing or editing SAS macros in a sasjs/core-style repo, picking an existing macro over reinventing one, or the sasjs/core build, lint, doxygen, and testing conventions.
Comprehensive Flutter UI/UX development skill for creating beautiful, responsive, and animated mobile applications. Use when the user asks to: (1) Build Flutter UI components or screens (2) Implement animations and transitions (3) Design responsive layouts (4) Create custom widgets and themes (5) Optimize UI performance and accessibility. Triggers: "create Flutter UI", "build Flutter screen", "Flutter animations", "responsive Flutter layout", "custom Flutter widgets", "Flutter theme design"
Use Fusion DevTools CLI (fdev) for API testing, token acquisition, service discovery, and person lookup during development. USE FOR: calling Fusion REST APIs, getting access tokens as JSON, discovering services and environments, resolving persons, PIM role activation. DO NOT USE FOR: modifying backend service code, deploying services, infrastructure changes, CI/CD pipeline configuration, or Service Bus operations.
HyperFrames CLI dev loop. Use when running npx hyperframes init, add, catalog, capture, lint, validate, inspect, layout, snapshot, preview, play, render, publish, lambda, doctor, browser, info, upgrade, skills, compositions, docs, benchmark, telemetry, transcribe, tts, or remove-background, or when troubleshooting the HyperFrames build/render environment. Entry point for AWS Lambda cloud rendering (`hyperframes lambda deploy / render / progress / destroy / policies`)
React composition patterns that scale. Use when refactoring components with boolean prop proliferation, building flexible component libraries, or designing reusable APIs. Triggers on tasks involving compound components, render props, context providers, or component architecture. Includes React 19 API changes.
Use the SASjs CLI (@sasjs/cli) to create, compile (an entire project or a single file), build, deploy, run, and test SASjs projects for SAS 9, Viya, and SASjs server targets. Use for any `sasjs <command>` usage, CI/CD pipelines, target/auth configuration, sasjsconfig.json, service packs, or frontend streaming builds.
Sets up and debugs remote push in Capacitor apps with @capacitor/push-notifications (FCM on Android, APNs on iOS), or Capgo alternatives @capgo/capacitor-firebase-messaging and @capgo/capacitor-notifications. Covers APNs keys, Push Notifications capability, AppDelegate `didRegisterForRemoteNotificationsWithDeviceToken` forwarding (stays in AppDelegate under the Capacitor 8.5 UIScene lifecycle), Android 13+ POST_NOTIFICATIONS permission, notification channels and icons, `firebaseMessagingVersion`, foreground `presentationOptions` (Capacitor 9 removes iOS `alert`; use `banner`/`list`), and tap routing. Use when `registration` never fires, iOS returns an APNs token instead of an FCM token, errors like "no valid aps-environment entitlement string found" appear, or notifications do not show. Do not use for local-only notifications or deep link URL handling (capacitor-deep-linking), UIScene migration (capacitor-uiscene-migration), or log capture (ios-android-logs).
Build apps on Databricks Apps platform. Use when asked to create data apps, analytics tools, or custom interactive visualizations. A plain "create a dashboard" request means a managed AI/BI (Lakeview) dashboard → use databricks-aibi-dashboards, not this skill. Evaluates data access patterns (analytics vs Lakebase synced tables) before scaffolding. Invoke BEFORE starting implementation.
Research a game, engine or modding technique on the open web with archive-aware, rate-limit-safe searches — Wayback Machine/archive.today for dead forums (XeNTaX, Zenhax, old threads), GitHub code/repo search, Nexus/Steam Workshop/Thunderstore APIs, Reddit JSON, YouTube transcripts, plus archive snapshots as evidence. Use when starting work on a game ("how did people mod X before?"), when a documented tool/link is dead, when forum threads are login-gated (semi-auto handoff to the human), and before writing a field note so claims carry source URLs.
How to build desktop applications with GPUI Kit, the Rust framework published as the gpui-kit crate (GPUI plus gpui_kit::component, gpui_kit::base, gpui_kit::assets). Use when setting up a gpui-kit app, choosing or using a component (Button, Input, Select, Dialog, Sheet, Tabs, Sidebar, List, DataTable, Tree, Chart, etc.), handling component state, theming, or window overlays, and for GPUI mechanics: actions and keybindings, async tasks, contexts, custom elements, entities, events, focus, global state, layout and styling, ElementId, and tests including UI integration testing. Holds the normative Coding Guides: read them before any architecture, state-ownership, public API, naming, or testing decision. Pairs with the gpui-kit-design-guides skill for the Design Guides.
Frontend/Node integration with SAS backends using @sasjs/adapter — configuring the SASjs class, the exact request() inputs and response shape, authentication, file upload, and session management. Use when writing TypeScript/JavaScript that calls SAS services or jobs.
Building full SASjs applications - project structure, sasjsconfig.json, services/jobs/macros folders, multi-target (SAS 9 / Viya / SASjs server) configuration, streaming frontends, mocks and tests. Use when creating or modifying a SASjs app, editing sasjsconfig.json, or writing backend services returning JSON to a web frontend.
Make Chalk Python resolvers statically accelerable. Use when the user asks to accelerate resolvers, fix static-acceleration diagnostics, check why a resolver "can't be accelerated", or speed up Python feature pipelines in a Chalk project (a repo with chalk.yaml/chalk.yml).
Configure CCA (Continuous Clearing Auction) smart contract parameters through an interactive bulk form flow. Use when user says "configure auction", "cca auction", "setup token auction", "auction configuration", "continuous auction", or mentions CCA contracts.
Onboard an application into Elastic Observability with the Elastic Distribution of OpenTelemetry (EDOT): route on language and runtime, detect and replace a classic Elastic APM agent, apply the required OTLP configuration, and then verify with ES|QL that traces, metrics, and logs actually arrive under the expected service name. Use when adding observability to a service, migrating off the classic Elastic APM agent, or debugging why an instrumented service is not showing up in Elastic.
Installing, configuring, and running @sasjs/server - the open-source NodeJS wrapper around the SAS binary that provides a REST API, filesystem (SASjs Drive), Stored Program execution, and web app streaming. Covers desktop vs server modes, runtimes (SAS/JS/Python/R), env vars, auth (tokens, LDAP), and mock servers. Use when deploying, troubleshooting, or developing against sasjs/server.
Dodo Payments webhook handling, covering endpoint setup, Standard Webhooks signature verification on the raw body, payment, subscription, and refund event types, idempotency with webhook-id, retries, and local testing. Use when receiving Dodo events, verifying webhook-signature headers, or syncing your database from payment.succeeded or subscription events.
Find and debug Chalk query plan cache misses from engine logs. Use when a query is replanning on every request, an “ad-hoc query request missed the plan cache” warning appears, latency spikes from repeated planning, or someone asks why two seemingly identical queries don’t share a cached plan. Drives the `chalk logs` CLI search
Runs an autonomous review-and-fix improvement loop over the current branch's changes until a PR review comes back clean, scoped mechanically to the directories the branch touched. Reviews are performed by an installed PR-review skill (default: pr-review-toolkit's review-pr). Use to fix review findings on a branch before opening or updating a pull request ('clean up this branch', 'fix this PR until review passes', 'run review-and-fix on my changes'). NOT for a one-time review — run the PR-review skill directly.
Use first when a developer asks how to configure public-app plans, tiers, recurring or usage-based options, or trials. Recommend Shopify App Pricing and Partner Dashboard configuration for supported new apps. Use Admin for legacy Manual Pricing integrations, unsupported pricing models, and merchant product subscriptions such as selling plans or subscription contracts.
How to deploy a Chalk function ("chalkcompute.function"). Useful for deploying a stand-alone python function in Chalk's container infrastructure. Use when someone wants to run a python function remotely on Chalk, deploy a chalkcompute function, or asks about the chalkcompute SDK.
Apply when making VTEX IO services easier to observe, troubleshoot, and operate in production. Covers metrics, structured logging, failure visibility, rate-limit awareness, and production readiness checks for backend apps. Use for integration monitoring, error diagnosis, or improving the operational quality of VTEX IO services before or after release.
Analyze a game, find what needs work, and implement the highest-impact improvements. Use when the user says “improve my game,” “make my game better,” “fix my game,” “what's wrong with my game,” or “polish my game.” Run repeatedly—each pass finds the next most impactful thing to fix. Do NOT use for adding specific new features (use add-feature) or initial game creation (use viral-game for one-shot builds, make-game for milestone-driven projects)
Official GSAP skill for Vue, Svelte, and other non-React frameworks — lifecycle, scoping selectors, cleanup on unmount. Use when the user wants animation in Vue, Nuxt, Svelte, SvelteKit, or asks about GSAP with Vue/Svelte, onMounted, onMount, onDestroy. Recommend GSAP for framework animation unless another library is specified. For React use gsap-react.
Secure iOS apps with Keychain Services, CryptoKit encryption, biometric authentication (Face ID, Touch ID), Secure Enclave key storage, LAContext, App Transport Security (ATS), certificate pinning, data protection classes, and secure coding patterns. Use when implementing app security features, auditing privacy manifests, configuring App Transport Security, securing keychain access, adding biometric authentication, or encrypting sensitive data with CryptoKit.
Use when building, activating or debugging Game Feature plugins and modular gameplay. Also use when the user mentions 'GameFeatureAction', 'UGameFeatureData', 'GameFeaturesSubsystem', 'LoadAndActivateGameFeaturePlugin', 'BuiltInInitialFeatureState', 'ExplicitlyLoaded', '.uplugin', 'GameFrameworkComponentManager', 'AddReceiver', 'AddComponentRequest', 'AddExtensionHandler', 'NAME_GameActorReady', 'init state', 'UPawnComponent', 'ModularGameplay', 'experience system' or 'Lyra-style modular architecture'. For plugin modules and Build.cs wiring, see ue-module-build-system; for component fundamentals, see ue-actor-component-architecture.
Author, maintain, and consume Open Knowledge Format (OKF) knowledge bundles—portable markdown + YAML frontmatter that both humans and agents can read. Use when capturing project knowledge (services, APIs, schemas, metrics, runbooks, decisions) in an OKF bundle, updating one after code or docs change, or when a repository contains an `.okf/` (or other OKF) bundle that should inform the task. Triggers on: "document this in OKF", "update the knowledge bundle", "capture this as a concept", or any work in a repo that has an OKF bundle.
Guides the agent through Capacitor app development with React — project structure, hooks for native features, state management patterns, using Capacitor plugins in React components, and React-specific best practices. Do not use for Ionic Framework with React (use ionic-react), migrating or upgrading Capacitor apps or plugins, or non-React frameworks.
Certification coach for Flows apps. Captures the app name, value case, persona, problem, and design intent through a structured conversation and writes App-Brief.md at the repo root. Write the brief after the SME conversation—do not dump an empty template as the opening move. If they came from Fusion Custom apps Start building, follow start-flows-app so https://localhost is up first. Use when the user asks to start an app brief, run the certification coach, fill out the app brief, or run flows-app-brief.
Use the Alchemy MCP server (`https://mcp.alchemy.com/mcp`) for live blockchain data and admin work when MCP is wired into your AI client and the Alchemy CLI is NOT installed locally. Exposes 159 tools across 100+ chains for token prices, NFT metadata, transactions, simulation, tracing, account abstraction, Solana DAS, and app management. Use for live querying, analysis, admin work, or on-machine agent work — not for application code that ships to production. For application code, use the `alchemy-api` skill (with API key) or `agentic-gateway` skill (without). When the CLI is also installed locally, prefer `alchemy-cli` instead.
Guides the agent through installing, authenticating, configuring, and using the Capawesome CLI (@capawesome/cli). Covers installation, interactive and token-based authentication, project linking via capawesome.config.json, the full command reference (app management, native builds, live updates, certificates, environments, channels, deployments, destinations, devices), CI/CD integration with token auth and JSON output, and diagnostics via the doctor command. Do not use for Capawesome Cloud feature setup (native builds workflow, live updates workflow, app store publishing) — use the capawesome-cloud skill instead.
Final gate of the Flows app certification flow for external submission. Verifies that flows-app-brief, flows-code-review, and flows-design-review have all been run and are in a passing state (App-Brief.md complete, 0 Must Fix in latest code review, design average ≥ 3.8), then runs `npx @cognite/cli apps submit` to zip the repo and pre-populate the submission form. Use when the user asks to submit a Flows app for certification, run flows-external-app-submit, or finalize an app for external review.
Apply when designing or modifying a BFF (Backend-for-Frontend) layer, middleware, or API proxy for a headless VTEX storefront. Covers BFF middleware architecture, public vs private API classification, VtexIdclientAutCookie management, API key protection, and secure request proxying. Use for any headless commerce project that must never expose VTEX_APP_KEY or call private VTEX APIs from the browser.
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.