Skills
98,284 packaged capabilities and playbooks for agents. Install any of them with one command.
Development
Set up Tailwind v4 with shadcn/ui using the @theme inline pattern and CSS variable architecture — component composition, accessibility, React Hook Form. Use when initializing React projects with Tailwind v4, setting up shadcn/ui dark mode, composing components, implementing forms, fixing theme/CSS issues, or migrating from v3.
Strategic planning specialist for task breakdown, dependency management, timeline estimation, and resource allocation. Manual invocation only - expert at decomposing complex projects into manageable tasks, identifying dependencies, assessing risks, and creating actionable roadmaps. Use when starting complex projects, facing overwhelmed scope, needing structured approaches, or requiring systematic task management before implementation.
Implements the Syncfusion® .NET MAUI ListView (SfListView). Use when displaying lists or collections of data in MAUI applications, implementing data grids, creating scrollable item lists, or adding sorting, filtering, or grouping. Covers item selection, layout customization, swipe actions, pull-to-refresh, load more, and drag-and-drop items.
Tailwind CSS v4 patterns and design systems. Use when configuring Tailwind themes, building components, implementing dark mode, using container queries, migrating from v3, integrating shadcn/ui, or fixing build errors. Use for tailwind, css, styling, theme, design-tokens.
TanStack Query (React Query) for async operations, data fetching, caching, and state management. Use when fetching server data, managing async operations, caching responses, handling mutations, or any operation that benefits from automatic state management and caching.
Hooks for managing, caching and syncing asynchronous and remote data in Vue. ALWAYS use when writing code importing \"@tanstack/vue-query\". Consult for debugging, best practices, or modifying @tanstack/vue-query, tanstack/vue-query, tanstack vue-query, tanstack vue query, query.
Create HTML technical documentation with code blocks, API workflows, system architecture diagrams, and syntax highlighting. Use when users request technical documentation, API docs, API references, code examples, or developer documentation.
When developing with the TinyVue component library (@opentiny/vue) or configuring internationalization, themes, form validation guidance, or component auto-import in a TinyVue project, always read this skill. It provides strict API documentation and examples, as well as workflows for finding information and coding standards
Upgrade Cairo smart contracts using OpenZeppelin's UpgradeableComponent on Starknet. Use when users need to: (1) make Cairo contracts upgradeable via replace_class_syscall, (2) integrate the OpenZeppelin UpgradeableComponent, (3) understand Starknet's class-based upgrade model vs EVM proxy patterns, (4) ensure storage compatibility across upgrades, (5) guard upgrade functions with access control, or (6) test upgrade paths for Cairo contracts.
Upgrade Stylus smart contracts using OpenZeppelin proxy patterns on Arbitrum. Use when users need to: (1) make Stylus Rust contracts upgradeable with UUPS or Beacon proxies, (2) understand Stylus-specific proxy mechanics (logic_flag, WASM reactivation), (3) integrate UUPSUpgradeable with access control, (4) ensure storage compatibility across upgrades, or (5) test upgrade paths for Stylus contracts.
Use when layouts need to adapt to different screen sizes, iPad multitasking, or iOS 26 free-form windows — decision trees for ViewThatFits vs AnyLayout vs onGeometryChange, size class limitations, and anti-patterns preventing device-based layout mistakes
Backtrader is an open-source quantitative backtesting framework, implemented entirely in Python. It supports multiple data sources, strategies, and timeframes, as well as live trading. Use when users need to develop quantitative strategies, analyze backtests, write trading logic, optimize backtesting parameters, or mention backtrader or quantitative backtesting frameworks. If users only need data retrieval and do not need backtesting, direct them to data Skills such as baostock/akshare/tushare.
Expert guidance for Next.js Cache Components and Partial Prerendering (PPR). Use when implementing 'use cache' directive, configuring cache lifetimes with cacheLife(), tagging cached data with cacheTag(), invalidating caches with updateTag()/revalidateTag(), optimizing static vs dynamic content boundaries, instant navigation validation, 'use cache: private', pass-through/interleaving patterns, GET Route Handler caching, debugging cache issues, and reviewing Cache Component implementations.
Style Canvas components with Tailwind CSS 4 theme tokens and approved utility patterns. Use when (1) Creating a new component, (2) Adding colors or styling to components, (3) Working with Tailwind theme tokens, (4) Adding or updating design tokens in global.css, (5) Creating color/style props, (6) Any change where component props are added/removed/renamed/retyped and can affect rendered styles. Covers @theme variables, CVA variants, and cn() utility.
End-to-end remediation workflow for PR review feedback by PR number. Use when Codex must export CodeRabbit issues for a PR, fix every issue completely, commit all fixes in a single commit, and resolve GitHub review threads afterward. Don't use for general PR reviews unrelated to CodeRabbit, draft PRs without review threads, or merge-strategy decisions.
Opt-in fixer (the /claude-seo-ai:fix command). Applies the safe, deterministic SEO/AI-search fixes from a persisted audit to the user's site — meta viewport/charset/lang, JSON-LD, robots.txt AI directives, hreflang, sitemaps, OG/Twitter cards, image dimensions, canonical, AI discovery files — through the adapter that matches the platform (local files, Shopify theme/Admin, WordPress REST/WP-CLI, page APIs, or step-by-step instructions). Dry-run preview by default; writes only after explicit per-change confirmation. Runs only when the user invokes it — never auto-triggered
SUPERSEDED by /claudex-loop (formerly /crucible; adds a Phase 0 research/recon pass + rebuilt interview) — prefer that skill unless you explicitly want this one. Two-act plan hardening. ACT 1 (you ↔ Claude) — Claude interviews you relentlessly about a plan or design, one question at a time, recommending an answer for each and exploring the codebase when it can answer itself, until every branch of the decision tree is resolved. ACT 2 (Claude ↔ Codex) — Claude writes the locked plan to PLAN.md and OpenAI Codex adversarially reviews it in a read-only sandbox (VERDICT:APPROVED/REVISE); Claude revises and re-submits to the SAME Codex session until APPROVED or a MAX_ROUNDS cap, then you sign off before any code. Use when the user says "/grill-me-codex", "grill me then have codex review", "grill me and stress-test the plan", "interview me about this plan then get a second model on it", or is about to build something high-stakes (auth, schema, concurrency, migrations, payments) and wants both alignment AND a cross-model sanity check before implementation. Builds on Matt Pocock's grill-me (MIT). For the docs-aware variant use /grill-with-docs-codex; if you already have a plan and want only the Codex review use /codex-review. NOT for reviewing already-written code (use /codex:review) and NOT for trivial changes
Creates scoped key-value stores, reads and writes state entries, lists keys, and performs partial updates across functions. Use when persisting data between invocations, managing user sessions, caching computed values, storing feature flags, sharing state between workers, or building a KV data layer as an alternative to Redis or DynamoDB.
Registers state-type triggers that automatically fire functions when key-value state is created, updated, or deleted within a scope. Use when building reactive side effects, change watchers, audit logs, cache invalidation, notification dispatchers, or any observer pattern where data changes should trigger downstream processing.
Registers a boolean condition function and attaches it to triggers via condition_function_id so handlers only fire when the condition passes. Use when gating triggers on business rules, checking user permissions, validating data before processing, filtering high-value orders, rate-limiting events, or conditionally skipping handlers based on payload content.
Use for any question about Mux APIs, SDKs, the mux CLI, webhooks, assets, uploads, playback, live streaming, Mux Data, or Mux Robots. Finds the current Mux documentation — Mux publishes every docs page as LLM-ready markdown indexed at mux.com/llms.txt — so answers come from today's published docs instead of web search or model memory.
Prevent Ethereum hashing bugs in JavaScript and TypeScript. Node's sha3-256 is NIST SHA3, not Ethereum Keccak-256, and silently breaks selectors, signatures, storage slots and address derivation. Use when hashing for Ethereum in JavaScript or TypeScript, or when a selector, signature, storage slot or derived address is wrong.
nuqs (type-safe URL query state) best practices for Next.js and other React frameworks. This skill should be used when writing, reviewing, or refactoring code that uses nuqs for URL state management. Triggers on tasks involving useQueryState, useQueryStates, search params, URL state, query parameters, nuqs parsers, limitUrlUpdates, Standard Schema, NuqsAdapter, or Next.js routing with state.
Use when creating a DeepSeek Harness plugin, choosing public names for a new external DSH plugin, validating a dsh-plugin.naming.json manifest, checking reviewed central registrations for known conflicts, or creating a workspace package inside the deepseek-harness repository. Covers the full workflow from repository-mode and plugin-form selection through separate offline naming validation, optional online registry lookup, and package validation. Routes tool, LLM adapter, hook, service, and configuration forms to their corresponding references while separating upstream-monorepo rules from external-package rules. For an existing plugin crossing Harness versions, use this Skill's built-in version-adaptation workflow before implementing against the exact target contract.
Senior React Native and Expo engineer for building production-ready cross-platform mobile apps. Use when building React Native components, implementing navigation with Expo Router, optimizing list and scroll performance, working with animations via Reanimated, handling platform-specific code (iOS/Android), integrating native modules, or structuring Expo projects. Triggers on React Native, Expo, mobile app, iOS app, Android app, cross-platform, native module, FlatList, FlashList, LegendList, Reanimated, Expo Router, mobile performance, app store. Do NOT use for Flutter, web-only React, or backend Node.js tasks.
Configure singleton documents in a Sanity Studio using the document.singletons registry. Use when a developer wants a fixed-id document (settings, navigation, footer) edited in place, hidden from the default content list, with no "create new" or "duplicate" affordances — or when migrating a userland singleton implementation or a third-party singleton plugin (e.g. sanity-plugin-singleton-management) to the first-class API.
Complete Shopify development reference covering Liquid templating, OS 2.0 themes, GraphQL APIs, Hydrogen, Functions, and performance optimization (API v2026-01). Use when working with .liquid files, building Shopify themes or apps, writing GraphQL queries for Shopify, debugging Liquid errors, creating app extensions, migrating from Scripts to Functions, or building headless storefronts. Triggers on "Shopify", "Liquid template", "Hydrogen", "Storefront API", "theme development", "Shopify Functions", "Polaris". Do NOT use for non-Shopify e-commerce platforms.
Use when connecting a product to Stripe, fixing a payment bug or auditing it: checkout, renewals, refunds, cancellation, the access-granting webhook. Not for crypto (crypto-payments). Opt out: no wiring, без обвязки. Triggers - "add Stripe", "webhook signature", "подключить Stripe", "баг в оплате".
Implements Syncfusion .NET MAUI ComboBox (SfComboBox) control. Use when working with ComboBox, dropdown selection, editable dropdown, searchable dropdown, or filterable dropdown in .NET MAUI. Covers basic ComboBox setup, editable/non-editable modes, single/multiple selection, filtering and searching, custom UI styling, and AI-powered smart search.
Integrate EVM blockchains using viem. Use when user says "read blockchain data", "send transaction", "interact with smart contract", "connect to Ethereum", "use viem", "use wagmi", "wallet integration", "viem setup", or mentions blockchain/EVM development with TypeScript.
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.