Skills
98,284 packaged capabilities and playbooks for agents. Install any of them with one command.
Development
Use for Roblox Engine API lookup during implementation: finding the correct engine class or service, confirming properties, methods, events, callbacks, datatypes, enums, globals, and built-in libraries, and verifying parameter, return, and property usage for a known engine task. Prefer this skill when the problem is referential rather than architectural.
Use when making Roblox avatars/characters look accurate or varied — sourcing and applying clothing (shirts/kits), hair, and faces from the Marketplace catalog, validating them, rendering to hand-pick good ones, and doing nation/identity-weighted skin & hair. Covers the WebFetch catalog-API pipeline that the Studio search_asset tool can't do.
Use when driving or inspecting Roblox Studio through the Studio MCP tools — running Luau in Studio, play/stop, screenshots, reading/searching the datamodel or scripts, generating meshes/materials/models, inserting assets, moving the character, or when the MCP link is dead (no Roblox tools show up). A capability menu + gotchas + connection troubleshooting.
Use when adding, changing, testing, or reviewing security-sensitive Rust web service behavior, especially login flows, password hashing, credential checks, session cookies, flash messages, admin route protection, auth middleware, user enumeration defenses, or moving CPU-heavy password work off async executors.
Scaffold the Mimas agent instruction file tree for any repository — AGENTS.md at root, subdomain CONTEXT.md files, and the full agents-docs/ hierarchy (a sibling of any existing docs/, kept separate so human-maintained project docs stay untouched). Every file is tailored to the repo's actual tech stack, git platform, and conventions. Use this skill whenever someone wants to set up agent instructions, onboard a repo for AI-assisted development, add AGENTS.md / CONTEXT.md files, create engineering docs for agents, or mentions "set up agentic repository" or "mimas template". Even if they just say "set up this repo for agents" or "add agent docs", this is the skill to use.
Create standout, technically ambitious interfaces that feel extraordinary through cinematic transitions, advanced motion, heavy rendering, or other high-ambition implementation work. Use when the user wants to wow, impress, go all-out, or push a feature beyond conventional UI polish—not when simple visual confidence or routine cleanup is enough.
Implement or review SignalR hubs, streaming, reconnection, transport, and real-time delivery patterns in ASP.NET Core applications. USE FOR: building chat, notification, collaboration, or live-update features; debugging hub lifetime, connection state, or transport issues; deciding whether SignalR or another. DO NOT USE FOR: unrelated stacks; generic tasks that do not need this specific guidance. INVOKES: inspect the repository context, edit targeted files, and run relevant build, test, lint, or validation commands when changes are made.
Configures Solid Queue for background jobs in Rails 8. Use when setting up background processing, creating background jobs, configuring job queues, or migrating from Sidekiq to Solid Queue. WHEN NOT: Synchronous in-request processing, real-time WebSocket features (use Action Cable), or simple operations that don't need background execution.
Use when implementing SpacetimeDB authentication or authorization, including SpacetimeAuth, Auth0, Clerk, OIDC, auth claims, subject/issuer checks, custom claims, roles, row-level security, and rejecting client connections. Triggers on: auth, authentication, authorization, SpacetimeAuth, Auth0, Clerk, OIDC, claims, RLS, row-level security.
Use when writing SpacetimeDB TypeScript or JavaScript clients, generated TS bindings, `DbConnection`, `DbContext`, query builders, subscriptions, reducer events, cache callbacks, React provider/hooks, Vue, Svelte, browser, Node, Bun, Deno, Next.js, Nuxt, Remix, TanStack, or Angular integrations. Triggers on: TypeScript SDK, JavaScript SDK, useSpacetimeDB, useTable.
Use when calling SpacetimeDB HTTP endpoints for identity, database operations, reducer calls, SQL execution, schema metadata, logs, energy endpoints, or authorization headers. Triggers on: HTTP API, REST, Authorization header, bearer token, /v1/identity, /v1/database, HTTP reducer call, HTTP SQL.
Build the pre-migration spec of a website — pages, redirects, 404s, layout variants, the EDS blocks each page needs with reuse verdicts, dynamic features, martech and open decisions — as documented knowledge files for people and a migration agent. Use when someone asks to scope, estimate or plan a migration, wants "which pages use block X / which blocks does page Y need", a redirect or 404 inventory, or the facts behind a migration brief. Not the migration itself (replica, migrate, rollout)
Diagnose and operate Spring AI projects with version-aware Maven or Gradle checks for ChatClient, advisors, retrieval, conversation memory, tool/MCP boundaries, streaming, configuration, and observability. Use for setup compatibility, local smoke checks, and failure triage; do not use for provider-specific model evaluation, general Java/Spring development, security threat modeling, or production rollout governance.
Use this skill when a vanilla static SPA scaffold exists and needs to feel like a polished product — progress persistence, sidebar + scrollspy navigation, dark/light theme, content zoom, responsive (mobile sidebar overlay), keyboard nav, fade-in entrances, toast notifications, iframe modal viewers, quiz scoring with section back-links. Triggers on phrases like "加進度勾選", "響應式", "暗色模式", "縮放", "scrollspy", "sidebar 收合", "手機版", "RWD", "dark mode", "progress tracking", "quiz UX", "interactive polish". Always invoke AFTER `static-spa-conversion` (renders working), as a standalone enhancement layer.
Use when Stigg is being provisioned or has just been provisioned through Stripe Projects — `stripe projects add stigg/environment`, `stripe projects catalog`, `stripe projects rotate`/`remove` against Stigg, or when a `.env` already holds `STIGG_SERVER_API_KEY` / `STIGG_CLIENT_API_KEY` that Stripe Projects wrote. Also use when the user asks to add pricing, entitlements, feature gating, or usage metering to an app that is already using Stripe Projects, so the environment is provisioned from the terminal instead of by signing up in a browser. Covers what the provisioned credentials are and the first wiring of the server and client SDKs. Skip for Stigg work unrelated to Stripe Projects — load the `stigg` umbrella and its pillars instead.
Svelte AI assistant integration skill. Use when the user configures the Svelte MCP server for AI coding tools such as Claude Code/Cursor/Copilot/Codex/OpenCode/VS Code, installs the svelte-autofixer/list-sections/get-documentation MCP tools, uses the svelte-task prompt, calls the sv CLI (svelte-ai CLI), or writes Svelte 5 code with the svelte-code-writer/svelte-core-bestpractices sub-agents.
Audit and improve SwiftUI runtime performance through code review and architecture. Use to diagnose slow rendering, janky scrolling, high CPU or memory usage, excessive view updates, or layout thrash in SwiftUI apps, and to provide guidance for user-run Instruments profiling when code review alone is insufficient.
Implement Syncfusion Dropdown Tree control to display hierarchical data in dropdown format. Use this skill when implementing single or multiple value selection from hierarchical data, enabling checkboxes with dependent parent-child states, lazy-loading large datasets, customizing tree items with templates, and configuring multi-language support. Comprehensive coverage of properties, methods, events, data binding modes, checkbox selection, templates, and accessibility features.
Build file management interfaces with Syncfusion JavaScript FileManager component. Use this when creating file browsers, implementing file operations, enabling upload/download functionality, customizing toolbars and context menus, configuring drag-and-drop, and implementing data binding for file systems. Covers virtualization, access control, localization, and enterprise-grade file operations.
Use this skill when migrating a Taiga UI project to a new major version. Before starting, confirm with the user which major versions are involved (e.g. v4 → v5). Substitute the source version as CURRENT_MAJOR and the target version as NEXT_MAJOR throughout this workflow. Also invoke when running migration schematics, handling migration TODOs left after `ng update` or `nx migrate`, asked to fix TODOs, clean up migration notes, resolve deprecation warnings, or work with @taiga-ui/legacy package. Follow the complete migration workflow: gather context, prepare environment, run schematics, review changes, handle TODOs, and troubleshoot common issues. Resolve every actionable TODO only when the surrounding code proves the fix is safe; otherwise inspect more context or ask the user before changing behavior, templates, styles, or scripts.
TailwindCSS implementation patterns for Refactoring UI principles. COMPANION skill for web-design-mastery. ALWAYS activate for: TailwindCSS, Tailwind classes, utility classes, Tailwind config, Tailwind components, Tailwind dark mode, Tailwind responsive, Tailwind spacing, Tailwind typography, Tailwind colors, Tailwind shadows. Provides class recipes, component patterns, dark mode implementation, responsive patterns. Turkish: Tailwind kullanımı, Tailwind class, utility CSS, Tailwind config. English: Tailwind patterns, utility-first CSS, Tailwind best practices.
Load PROACTIVELY when decomposing a user request into parallel agent work. Use when user says "build this", "implement this feature", or any request requiring multiple agents working concurrently. Guides task decomposition into parallelizable units, agent assignment with skill matching, dependency graph construction, and result aggregation. The runtime engine handles WRFC chain coordination automatically via <gv> directives.
GSAP implementation craft for agent-built sites: timeline architecture, gsap.context and matchMedia, ScrollTrigger pin and scrub hygiene, SplitText discipline, transform-only animation, refresh-after-fonts, and full prefers-reduced-motion gating. The 90% of award-tier motion is structure, not effects — this is that 90%. Use whenever generating GSAP animation code. Stack on the design-taste core skill and taste-motion
Use before implementing a feature or bug fix that adds or changes behavior users or callers rely on, including requests that do not mention tests or TDD. Not for removing features or code, behavior-preserving refactors, design or UX exploration, prototypes, styling, copy, configuration, or data cleanup.
Master TypeScript's advanced type system including generics, conditional types, mapped types, template literals, and utility types for building type-safe applications. Use when implementing complex type logic, creating reusable type utilities, or ensuring compile-time type safety in TypeScript projects.
Use when analyzing TYPO3 Forge issues, submitting patches to Gerrit, contributing core bug fixes, documentation contributions, cherry-pick workflows, or CI debugging on Gerrit. Core `main` branch is v15-in-progress (PHP 8.4/8.5); v14.3 LTS bugfixes land on branch `14.3` and are backported via cherry-pick. Also triggers on: forge.typo3.org, core patch, Gerrit review, TYPO3 Core contribution.
Unity 6 AI and navigation guide. Use when working with NavMesh, pathfinding, NavMeshAgent, NavMeshSurface, NavMeshObstacle, off-mesh links, or Unity Sentis (ML model inference). Covers AI navigation package, runtime NavMesh baking, and common AI patterns like state machines and behavior trees. Based on Unity 6.3 LTS documentation.
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.
Design and build waiting-list portals for anticipated goods or services: classify whether the experience needs interest capture, verified early access, referral growth, a virtual waiting room, appointment backfill, or scarce-item allocation; choose a reversible architecture; and define the state machine, abuse controls, consent and email lifecycle, fairness, observability, and release gates. Optionally validate supplied email and phone contacts with expiring magic links or provider-managed verification, then feed eligible, consented records to a runtime-configured CRM adapter. Use for prelaunch signups, beta access, launches, bookings, reservations, traffic-spike queues, and premium or cinematic campaign experiences. Do not use for generic landing-page copy, ordinary CRM or email operations, or checkout and inventory systems in isolation; route those parts to the appropriate specialist skill.
WordPress block editor code review and Gutenberg block development patterns for WordPress 6.x+. Use when reviewing block code, auditing block.json schema, checking editor components, validating render callbacks, analyzing block attributes, verifying InnerBlocks usage, detecting block validation errors, reviewing Interactivity API directives, or when user mentions "block review", "Gutenberg", "block development", "block editor", "block.json", "useBlockProps", "InnerBlocks", "Interactivity API", "data-wp-bind", "render_callback", "dynamic block", "static block", "block deprecation", "block attributes", "block supports", "@wordpress/scripts", "wp-scripts", "block validation error", "save function", "RichText", "InspectorControls", "BlockControls". Detects issues in block.json schema, React/JSX editor patterns, server-side rendering, attribute handling, and frontend interactions.
Integrate OpenAI Agents SDK with You.com MCP server - Hosted and Streamable HTTP support for Python and TypeScript. - MANDATORY TRIGGERS: OpenAI Agents SDK, OpenAI agents, openai-agents, @openai/agents, integrating OpenAI with MCP - Use when: developer mentions OpenAI Agents SDK, needs MCP integration with OpenAI agents
Corrects the wrong defaults a capable model has when building Yjs collaborative editing into a Next.js 16 App Router app with tRPC v11 and shadcn/ui — pinned to Yjs 13.6.31. Covers the decisions whose failure mode is silence rather than an error — plain objects in a Y.Map discarding concurrent edits, updates that vanish because a JSON boundary turned a Uint8Array into a number array, undo that reverts a colleague's paragraph, initial content seeded once per client, and carets thrown to the end of a shadcn Input on every remote keystroke. Also covers where the sync loop can actually run, since route handlers cannot upgrade, Vercel Functions have no instance affinity, and tRPC subscriptions are one-way — plus which packages have already moved to the Yjs 14 prerelease track. Use when writing, reviewing, or debugging collaborative editing, presence, offline sync, or CRDT persistence in this stack.
Usage guidelines for the Zerone CLI toolkit. Covers four main functions: API interface code generation (zerone api), font icon management (zerone font_grabber), frontend project scaffolding (create-zerone), and work log generation (zerone log). Use this skill for the following scenarios: generating API modules, generating interface code, updating interfaces, pnpm api, adding backend interface modules, iconfont font icons, updating icons, pnpm font, using icon icons, creating frontend projects, pnpm create zerone, scaffolding initialization, daily work reports, weekly reports, monthly reports, zerone log — and even when the user merely mentions keywords such as "接口", "图标", "新建项目", or "日报周报".
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.