Skills
98,639 packaged capabilities and playbooks for agents. Install any of them with one command.
Development
Builds spatial Android apps for Meta VR and Horizon OS with Meta Spatial SDK — ECS architecture, 2D panels, 3D objects, hybrid experiences. Use when creating Kotlin-based spatial applications. Build path: Meta Spatial SDK; use hz-quest-verify-first if the build path is unclear.
Perform a structured maintainer-style PR review for the mariadb-operator repository. Gathers PR context, triages the change, and evaluates correctness, safety, pitfalls, backwards compatibility and code quality against the project conventions documented in AGENTS.md. Use whenever the user mentions a mariadb-operator PR number or URL and wants any kind of judgment on it — "review this PR", "what do you think of #1234", "is this safe to merge", "assess this diff", "take a look at this change" — even if they don't literally say "review".
Personalisation and recommendation systems for a two-sided trust marketplace built on AWS Personalize — event tracking, dataset and schema design, two-sided matching, cold start, feedback loops, bias control, recipe selection, serving-time re-ranking, observability, and a diagnostic playbook for existing systems. Trigger when designing, building, debugging, reviewing, or improving such a system — and even when the user does not explicitly mention "AWS Personalize" but is working on recommendations, ranking, search, homepage personalisation, or anything that matches seekers and providers across a trust-based catalog.
Use this skill when the user asks to “create a scene,” “add a new scene,” “make a menu scene,” “create a game over screen,” “add a level,” “set up scene transitions,” “create a pause screen,” “add a preloader,” “create a HUD overlay,” or needs any Phaser 4 scene created, structured, or connected to other scenes.
This skill should be used when the user asks to "add tilemap", "create a level", "Tiled editor", "tile collision", "object layer", "create map", "tilemap not showing", "level design", "tile layer", "game map", "spawn point", "trigger zone", or "map collision".
RQAlpha is an open-source event-driven backtesting framework from 米筐. It supports A-shares and futures, with a modular, extensible architecture. Use it when users need to quickly backtest A-share or futures strategies, use built-in data (download-bundle), develop Mod plugins, or mention rqalpha or 米筐. Compared with backtrader, rqalpha includes built-in A-share daily data and is easier to install, making it suitable for quick validation; backtrader is more flexible and has a larger community. If users only need data retrieval and do not need backtesting, direct them to data Skills such as baostock/akshare/tushare.
Tailwind CSS plugins — official plugins and custom plugin development. PROACTIVELY activate for: (1) @tailwindcss/typography (prose), (2) @tailwindcss/forms, (3) @tailwindcss/aspect-ratio (now built-in), (4) @tailwindcss/container-queries, (5) writing custom plugins via plugin() API, (6) addUtilities, addComponents, addVariant from plugin API, (7) third-party plugins (tailwindcss-animate, tailwind-merge), (8) in-CSS @utility and @variant in v4 (often replaces JS plugins), (9) plugin migration from v3 JS API to v4 CSS API. Provides: official plugin install/setup, plugin API reference, custom plugin examples, and v3-to-v4 plugin migration guide.
MUST use whenever the user wants to add a clickable menu item, action, or option to an existing Wix dashboard page's more-actions menu, bulk-actions menu, or context menu. This includes any request to add actions/options/items to menus on Wix Stores (products, inventory), Wix Bookings (calendar, services, staff, booking list), Wix Blog (posts, categories, tags), Wix eCommerce (orders), Wix Events, Wix CRM (contacts), or Wix Restaurants (reservations, online orders, menus) dashboard pages. Trigger on phrases like: add menu item, add action to menu, add option to more actions, bulk action, custom action in dashboard menu, extend dashboard menu, dashboard menu plugin, context menu action on dashboard page. Do NOT use for: visual widgets/plugins embedded in dashboard page slots (use wix-cli-dashboard-plugin), standalone dashboard pages (use wix-cli-dashboard-page), standalone modals (use wix-cli-dashboard-modal), or site-facing UI.
Use for any task involving Ultralytics Platform, the ultralytics Python package, yolo CLI, YOLO model weights (.pt), dataset annotation, training, validation, prediction, tracking, export, deployment, or the detect / segment / semantic / depth / classify / pose / OBB vision tasks.
Use when you need to add or review Mongock MongoDB data migrations in a Spring Boot application — including Maven coordinates, Spring Data MongoDB drivers, migration scan packages, @ChangeUnit classes, lock/transaction settings, and optional policy-approved MongoDB integration verification. This should trigger for requests such as Add Mongock migrations in Spring Boot; Review Spring MongoDB data migrations; Configure Mongock change units for Spring Data MongoDB; Create Mongock change units for Spring Boot MongoDB; Review Mongock migration ordering in a Spring service. Part of Plinth Toolkit
Use when reviewing, designing, or modifying Java enterprise systems that may support intermediary services, hosting services, online platforms, marketplaces, content moderation, recommender systems, advertising delivery, complaint workflows, transparency reporting, or systemic-risk evidence under the EU Digital Services Act. This should trigger for requests such as Review a Java online platform for DSA controls; Design notice-and-action or appeal workflows; Add recommender, ad transparency, moderation, audit, researcher access, or privacy-safe observability evidence; Assess online-platform transparency controls before production release. Part of Plinth Toolkit
End-to-end, phase-gated SDLC for AI coding agents: relentless design interview → reviewed spec → dependency-graphed task board → safe-wave TDD execution → verification → converge. Handles features, bugs, refactors, greenfield projects, planning breakdowns, and migrations. Triggers on “absolute work”, “build this end-to-end”, “plan and build”, “break this into tasks”, “grill me on this plan”, “pick up this ticket”, “run this migration”.
Single-pass codebase analysis leveraging a 1M-token context window for comprehensive security scanning, architecture review, and dependency auditing. Loads entire codebases for cross-file pattern detection and generates structured audit reports with severity-ranked findings. Use when you need whole-project analysis before releases or security reviews.
Multi-agent workflow orchestrator for software projects. Invoke when the user says "Hey Buddy", asks to work on a task, wants to check Linear tasks, start continuous monitoring for new issues, or needs a full develop-test-review cycle on any software change. Orchestrates specialized agent roles in a loop until the task is complete.
UI/UX design intelligence for web and mobile. Includes 50+ styles, 161 color palettes, 57 font pairings, 161 product types, 99 UX guidelines, and 25 chart types across 10 stacks (React, Next.js, Vue, Svelte, SwiftUI, React Native, Flutter, Tailwind, shadcn/ui, and HTML/CSS). Actions: plan, build, create, design, implement, review, fix, improve, optimize, enhance, refactor, and check UI/UX code. Projects: website, landing page, dashboard, admin panel, e-commerce, SaaS, portfolio, blog, and mobile app. Elements: button, modal, navbar, sidebar, card, table, form, and chart. Styles: glassmorphism, claymorphism, minimalism, brutalism, neumorphism, bento grid, dark mode, responsive, skeuomorphism, and flat design. Topics: color systems, accessibility, animation, layout, typography, font pairing, spacing, interaction states, shadow, and gradient. Integrations: shadcn/ui MCP for component search and examples.
Clarify and break down requirements, identify stakeholders, and tag requirement items with their associated subjects and business entities. Produce only structured requirement descriptions, without modeling definitions; these can be used as input for subsequent modeling.
Use only when the user asks to write, revise, or review a development plan, technical design, project proposal, or implementation roadmap. Do not use for direct implementation, following an existing plan, goal execution, continuing work, or updating progress. Deliver an actionable plan that can be resumed across conversations, based on requirements, repository rules, and code facts.
Compatibility entry point for failed, stalled, looping, or over-recovered Paperclip work. Use fix-failed-paperclip-run for the full diagnosis, regression, repair, real verification, and green-PR workflow; honor an explicitly requested diagnosis-only scope.
Domain-Driven Design patterns for TypeScript. Use when implementing ubiquitous language, value objects, entities, aggregates, domain events, domain services, or bounded contexts. Only applies to projects that explicitly use DDD. Do NOT use for simple CRUD or projects without domain modeling
Embedded systems firmware, microcontrollers (ESP32, STM32, Arduino, Raspberry Pi), RTOS (FreeRTOS, Zephyr), IoT protocols (MQTT, CoAP, BLE), bare-metal C/C++, and hardware peripheral interfaces (I2C, SPI, UART, GPIO). Use when developing firmware, working with microcontrollers, or building IoT devices
Fix GitHub issues end to end — analysis, branch creation, implementation, testing, and PR submission. Use whenever the user mentions fixing a GitHub issue, says "fix issue #123", "work on this issue", "修复 issue", or references a GitHub issue number or URL.
Go interface design patterns: implicit interfaces, consumer-side definition, interface compliance verification, composition, the accept-interfaces-return-structs principle, and common pitfalls. Use when designing interfaces, decoupling packages, defining contracts, reviewing interface usage, or refactoring for testability. Trigger examples: "design interface", "accept interfaces return structs", "interface compliance", "consumer-side interface", "interface composition". Not for: HTTP handler patterns (go-api-design), general review (go-code-review)
Full-power feature implementation using parallel subagents for backend, frontend, testing, and security, with worktree isolation and quality verification in one workflow. Chains with /ork:cover for tests and /ork:verify for validation. Use when asked to build, add, create, scaffold, or set up a new feature, endpoint, component, or UI capability. Not for fixing a bug, reviewing, explaining, testing, or comparing existing code.
Create, modify, and debug server plugins for current Paper 26.x on Java 25 or legacy Bukkit-derived 1.21.x servers on Java 21. Use for JavaPlugin APIs, events, commands, schedulers, configuration, PDC, and Adventure, not client mods or vanilla datapacks.
WeChat Mini Program development skill for building, debugging, previewing, testing, publishing, and optimizing mini program projects (小程序开发、调试、预览、发布). Covers project structure and config (`project.config.json`, `appid`, `miniprogramRoot`, `tabBar`, routing/navigation, icon assets), WeChat Developer Tools Nightly workflows (`wechatide` CLI, WeChat IDE Skills/MCP), `miniprogram-ci` preview/upload, console/network debugging, message push (消息推送) and customer-service auto-reply (客服消息), mini program SEO / search indexing (小程序搜索优化、页面收录、搜索推广、mpcrawler), and CloudBase integration (`wx.cloud`, 腾讯云开发, 云开发) when explicitly used. Use when users create, develop, modify, debug, preview, deploy, publish, or promote WeChat Mini Programs. NOT for Web frontend (use web-development), pure backend services (use cloudrun-development / cloud-functions), or UI-design-only tasks (use ui-design).
Identify computational bottlenecks, analyze parallel scaling, estimate memory requirements, and generate optimization recommendations for materials simulations — parse timing logs to find dominant phases (solver, assembly, I/O), evaluate strong and weak scaling efficiency, profile memory from mesh and field parameters, and detect bottlenecks with actionable fix suggestions. Use when a simulation is slower than expected, investigating MPI scaling efficiency, planning HPC resource allocation, deciding whether to tune the preconditioner or reduce I/O frequency, or estimating whether a problem fits in available RAM, even if the user only says “my simulation is too slow” or “how many nodes do I need”
Use this skill when the user asks about Phaser 4 asset loading, sprite sheets, texture atlases, image optimization, preloader scenes, loading bars, tile map assets, audio formats, bitmap fonts, free game assets, generated placeholder assets, asset organization, or asset pipeline performance.
Expert in modern, cross-platform PowerShell Core. Specializes in Linux/macOS automation, parallel processing, REST API integration, and modern scripting patterns. Use for cross-platform automation and modern PowerShell features. Triggers include "PowerShell 7", "PowerShell Core", "pwsh", "ForEach-Object -Parallel", "cross-platform PowerShell"
Comprehensive mobile push notification guide for iOS (APNS) and Android (FCM). Use when setting up push notifications, debugging delivery issues, implementing background/foreground handlers, managing push tokens, integrating deep linking, or troubleshooting platform-specific issues.
Core Regle form validation in Vue 3 — setup with `useRegle`, the reactive `r$` object, validation properties, displaying errors, and modifiers. Use when adding or editing Regle forms, binding `v-model` to `r$.$value`, or reading `$error`/`$errors`/`$invalid`/`$validate`/`$reset`. For validation rules see regle-rules; for advanced patterns see regle-advanced.
Use when building or fixing Roblox game UI or input: HUD (health bar, currency, ability cooldowns), main menu, shop with a scrolling grid, settings screen, inventory, "UI scales wrong on phone", buttons hidden behind the jump button, UI too small on a tablet or TV, portrait and landscape, top bar and safe area, Scale vs Offset, UIListLayout, UIGridLayout, UIFlexItem, StyleSheets and themes, gamepad or console menu navigation, the Input Action System (InputContext, InputAction, InputBinding), ContextActionService migration, PreferredInput, reduced motion and accessibility, localization and AutoLocalize, React, Fusion or Vide, the Device Simulator, and testing UI without a phone.
Inspect Sentry issues, summarize production errors, and retrieve health data via the Sentry API (read-only). Use when the user says “check Sentry”, “what errors in production?”, “summarize Sentry issues”, “recent crashes”, or “production error report”. Requires SENTRY_AUTH_TOKEN. Do NOT use for setting up Sentry SDK, configuring alerts, or non-Sentry error monitoring.
Simplifies, polishes, and declutters code without changing behavior. Use when asked to simplify, clean up, refactor, declutter, remove dead code or AI slop, or improve readability, including analysis-only simplification reports and code pasted inline.
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.