Skills
98,284 packaged capabilities and playbooks for agents. Install any of them with one command.
Development
TypeScript 6+ guidance for project development, tsconfig configuration, diagnostics, module resolution, deprecations, and modern standard-library typings. Use when building or maintaining TypeScript 6+ projects, debugging compiler behavior, or working through TS 6-specific defaults and tooling such as `#/` subpath imports, `ignoreDeprecations`, `RegExp.escape`, `Temporal`, and `--stableTypeOrdering`. Triggers on typescript 6, ts 6, stableTypeOrdering, ignoreDeprecations, types array, noUncheckedSideEffectImports, baseUrl deprecated, moduleResolution node deprecated, and subpath imports.
Maintain a project thesaurus (domain glossary) following DDD ubiquitous language principles. Use PROACTIVELY when naming anything: variables, functions, classes, modules, database fields, API endpoints, events, files, or directories. Also use when the user asks to "create thesaurus", "update glossary", "add term", "rename to match domain", "check naming consistency", "what should I call this", "domain language", "ubiquitous language", or "naming conventions". Ensures all names in the codebase are consistent, descriptive, and aligned with the shared domain vocabulary. Also mines git history to resolve naming ambiguities — when a name was born, which name replaced which, which spelling is dying. Not for general code style or linting — only for domain term consistency.
Unity 6 XR development guide. Use when building VR, AR, or MR experiences. Covers XR Interaction Toolkit, XR Plug-in Management, OpenXR, hand tracking, controllers, haptics, AR Foundation (plane detection, anchors, image tracking), and platform-specific setup (Meta Quest, Apple Vision Pro). Based on Unity 6.3 LTS documentation.
Provides comprehensive guidance for upgrade link management including upgrade link creation, configuration, and upgrade link best practices. Use when the user asks about upgrade links, needs to create upgrade links, configure upgrade processes, or manage upgrade links.
Integrate Vercel Blob object storage for file uploads, image management, and CDN-delivered assets in Next.js applications. Supports client-side uploads with presigned URLs and multipart transfers. Use when implementing file uploads (images, PDFs, videos), managing user-generated content, or troubleshooting missing tokens, size limit errors, or client upload failures.
Provides comprehensive guidance for Webpack bundler including configuration, loaders, plugins, code splitting, optimization, and development setup. Use when the user asks about Webpack, needs to configure Webpack, set up build pipelines, optimize bundles, or work with Webpack plugins.
Configure fastlane + GitHub Actions for iOS projects to automatically build and upload to TestFlight on pushes to the main branch. Reference implementation: the Cathier project. Triggers: "testflight", "fastlane", "auto build", "CI TestFlight", "/wjs-publishing-testflight".
WordPress PHPStan review and setup guidance. Use when reviewing `phpstan.neon`, WordPress static-analysis setup, baselines, PHPStan levels, CI jobs, WordPress stubs, `szepeviktor/phpstan-wordpress`, or when user mentions "PHPStan", "static analysis", "phpstan.neon", "baseline", "WordPress stubs", or "CI type checks". Helps review WordPress-specific PHPStan configuration, baseline strategy, extension wiring, and practical rollout patterns for plugins, themes, and larger WordPress codebases.
Use when you have a spec or requirements for a multi-step task, before touching code. Produces an engineering plan complete with TDD tasks, DRY/SOLID/YAGNI principles, a required Test Plan & Verification section, and a coverage target — then auto-runs /plan-eng-review as an independent double-check before execution.
Image optimization analysis for SEO and performance. Checks alt text, file sizes, formats, responsive images, lazy loading, and CLS prevention. Use when user says "image optimization", "alt text", "image SEO", "image size", or "image audit".
End-to-end Across Protocol integration playbook. Default to Swap API for all crosschain bridging and swapping. Use App SDK (@across-protocol/app-sdk) when you need programmatic quote/route control in TypeScript. Fall back to suggested-fees API only for custom swap routing or niche bridge-only flows. Covers intent lifecycle, Swap API integration, embedded crosschain actions, deposit tracking, fee collection, and security checklists.
Use when the user is addressing pull request review comments locally and asks for help evaluating, implementing, or drafting responses to reviewer feedback - requires technical rigor and verification, not performative agreement or blind implementation
Design websites and applications that AI agents can consume, navigate, and interact with. Use when building any site, app, or product that agents will use as an end-user — not just crawl or index. Covers semantic structure, accessibility-as-agent-interface, machine-readable data, API-first patterns, and the emerging protocols (llms.txt, MCP, NLWeb, A2UI) that make sites agent-ready. Triggers on: agent-friendly, agent-readable, agent-accessible, AX, agent experience, agentic web, dual-interface, machine-readable, llms.txt, MCP integration, NLWeb, accessibility tree, ARIA for agents, structured data, JSON-LD, Schema.org, API-first design, build for agents, agent-ready.
Provides AI agents with a single-file HTML componentization spec and template system based on the minimalist modern aesthetic of shadcn/ui. Always use this skill when the user asks to "generate an HTML page/web page", "front-end visualization dashboard/board", "interview/analysis/test report", "comparison matrix/option comparison", "turn review results into a visualization page", "code review report / turn a diff into a visual review page", "don't output a markdown wall/text wall", "turn analysis results into an interactive single-file web page", and similar scenarios. Zero build, zero npm, strictly no external CDN (no blank screen risk when offline), pure native HTML/CSS/SVG, supports dark mode and instant open on double-click.
Run external coding agents (Codex, Claude Code, OpenCode, native Grok Build, Gemini) as independent reviewers, stateful repository researchers, or single-agent implementers. Use for multi-model opinions and code review, steerable Grok research, full-access delegation, long-running work, or reattaching to delegated runs. Not for simple questions answerable directly from docs or the current codebase.
Use when generating or reasoning over text with Alibaba Cloud Model Studio Qwen flagship text models (`qwen3-max`, `qwen3.5-plus`, `qwen3.5-flash`, snapshots, and compatible open-source variants). Use when building chat, agent, tool-calling, or long-context text generation workflows on Model Studio.
A reference for Android app development (Kotlin) background and asynchronous processing. Jetpack androidx WorkManager: Worker, CoroutineWorker, WorkRequest, Constraints, WorkInfo, WorkContinuation, expedited work, and testing. Service: foreground services, bound services, AIDL, Messenger. AlarmManager, PendingIntent, BroadcastReceiver, JobScheduler, Doze. Kotlin coroutines, Flow, StateFlow, SharedFlow, Channel.
Generates Angular code and provides architectural guidance. Trigger when creating projects, components, services, or HTTP communication, or for best practices on reactivity (signals, linkedSignal, resource, httpResource), queries and content projection, forms, dependency injection, routing, server and hybrid rendering (SSR, prerendering, hydration), accessibility (ARIA), animations, styling (component styles, Tailwind CSS), testing, naming conventions, or CLI tooling
Implement type-safe configuration with anyway_config gem. Use when creating configuration classes, replacing ENV access, or managing application settings. Triggers on configuration, environment variables, settings, secrets, or ENV patterns.
Apple SwiftUI declarative UI framework reference. View, VStack, HStack, ZStack, List, NavigationStack, TabView, toolbar, State, Binding, Bindable, Environment, EnvironmentObject, sheet, fullScreenCover, modifier, animation, Animation, withAnimation, Transition, matchedGeometryEffect, PhaseAnimator, KeyframeAnimator, swipeActions, reorderable, AsyncImage, DocumentGroup, Document, Liquid Glass, iPhone Duo support (ArrangementView, ReservedRegion, DeviceHinge).
Core utilities including Accessor pattern, Collection, reactiveUtils, promiseUtils, esriRequest, intl (internationalization), and workers. Use for reactive programming, property watching, HTTP requests, locale formatting, async operations, and background processing.
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.
