Skills
98,067 packaged capabilities and playbooks for agents. Install any of them with one command.
Development
Architect a full-stack application on Eve Horizon — manifest-driven services, managed databases, build pipelines, deployment strategies, secrets, and observability. Use when designing a new app, planning a migration, or evaluating your architecture.
Factorial Code platform user journey and support — from requesting access through app creation, OAuth setup, demo companies and the Test marketplace to releases and marketplace publication. Use when answering "how do I…" questions about using the platform, guiding a user through any journey stage, or acting as a Factorial Code support agent.
Creates, updates, and deploys Power Apps generative pages for model-driven apps using React v17, TypeScript, and Fluent UI V9. Orchestrates specialist agents for planning, entity creation, and code generation. Use it when the user asks to build, retrieve, or update a page in an existing Microsoft Power Apps model-driven app. Use it when the user mentions “generative page,” “page in a model-driven,” or “genux.” Do not use it for a generic or standalone React or web app, website, or dashboard (including a Power Apps code app), Power Pages, canvas apps, or Power Automate, or when the user rules out Power Platform, Dataverse, or model-driven apps (for example, “no Power Platform”). A generative page only runs inside a model-driven app, and this skill cannot scaffold a standalone project. This skill stands alone and does not require /app-builder—but if the user wants a whole app built (tables, forms, views, sitemap) rather than pages for an app that already exists, use /app-builder instead
Create modern, responsive websites with professional design systems. Generates complete HTML/CSS/JS websites with Tailwind CSS, modern animations, and mobile-first responsive design. Perfect for landing pages, portfolios, business sites, and SaaS applications.
Fetch and inspect recent local server logs in repos that use openlogs or the `ol` CLI. Use when a user asks what happened in the server, wants recent dev-server output, needs startup errors or stack traces, or asks you to check backend logs from `openlogs tail`, command-specific logs, or `.openlogs/latest.txt`
Use the public `orca` CLI to operate Orca-managed worktrees, folder contexts, terminals, repos, automations, artifacts, worktree comments, and the browser embedded inside the Orca app. Use when the user says "$orca-cli", "use orca cli", "Orca worktree", "child worktree", "cardStatus", "spawn codex/claude in a worktree", "read/wait/send Orca terminal", "terminal send", "full handoff", "handover", "give this to another agent", "another worktree", "Orca browser", "orca artifacts", "share HTML/Markdown", "public artifact link", or "control the browser inside Orca". Prefer this over raw `git worktree`, ad hoc PTYs, Playwright, or Computer Use when the task touches Orca-managed state. Use Computer Use for browser windows, webviews, or desktop UI outside Orca's embedded browser.
Provides comprehensive guidance for Pinia state management including stores, state, getters, actions, plugins, and TypeScript support. Use when the user asks about Pinia, needs to manage application state, create stores, implement state persistence, or migrate from Vuex
Debug and inspect PostHog implementations on any website. Use this skill when a user wants to understand how PostHog is implemented on a page, troubleshoot tracking issues, verify configuration, check what events are being sent, or audit a PostHog setup. Works with Chrome DevTools MCP and Playwright MCP to inspect live websites.
Use when writing or reviewing TypeScript/full-stack code. Encodes principles for type safety (branded types, discriminated unions, end-to-end types), real tests over mocks, OpenTelemetry observability, and picking the right abstractions instead of premature ones.
Rails 7+ specialist that optimizes Active Record queries with includes/eager_load, implements Turbo Frames and Turbo Streams for partial page updates, configures Action Cable for WebSocket connections, sets up Sidekiq workers for background job processing, and writes comprehensive RSpec test suites. Use when building Rails 7+ web applications with Hotwire, real-time features, or background job processing. Invoke for Active Record optimization, Turbo Frames/Streams, Action Cable, Sidekiq, RSpec Rails.
Builds and debugs Shopify themes (.liquid files, theme.json, sections), develops custom Shopify apps (shopify.app.toml, OAuth, webhooks), and implements Storefront API integrations for headless storefronts. Use when building or customizing Shopify themes, creating Hydrogen or custom React storefronts, developing Shopify apps, implementing checkout UI extensions or Shopify Functions, optimizing performance, or integrating third-party services. Invoke for Liquid templating, Storefront API, app development, checkout customization, Shopify Plus features, App Bridge, Polaris, or Shopify CLI workflows.
Simple Preference Optimization for LLM alignment. Reference-free alternative to DPO with better performance (+6.4 points on AlpacaEval 2.0). No reference model needed, more efficient than DPO. Use for preference alignment when want simpler, faster training than DPO/PPO.
Use FIRST when a Spree 6 customization is on the table and the right pattern isn't obvious — "how do I customize X", "where should this logic go", "decorator or subscriber?", "hook or event?", "how do I block checkout when…", "add a field to products", "change how tax/shipping/search works", "extend Spree without forking". A decision tree that routes each need to the right extension point (store settings, SPREE_* config, model preferences, workflow hooks, events, webhooks, Checkout::Registry, providers, custom fields vs metadata, validators, permitted attributes, permission scopes, new resources, dependencies, decorators, dashboard plugins) and to the skill that covers it in depth
Use when the user is working on the optional Next.js storefront for Spree 6 (the customer-facing store in `apps/storefront/`, github.com/spree/storefront) — adding a page, customizing checkout, fetching products, multi-region URLs, the wholesale/B2B portal, transactional emails from webhooks, storefront tests, or integrating any frontend with the Store API via `@spree/sdk`. Common phrasings include “customize storefront,” “Next.js storefront,” “frontend changes,” “PDP,” “product page,” “cart,” “checkout flow,” “order confirmation page,” “@spree/sdk,” “publishable key,” “country/locale URLs,” “wholesale portal,” “storefront emails,” “webhook route.” Provides the storefront architecture, the @spree/sdk integration model, and the storefront-vs-backend decision tree.
Builds iOS/macOS/watchOS/tvOS applications, implements SwiftUI views and state management, designs protocol-oriented architectures, handles async/await concurrency, implements actors for thread safety, and debugs Swift-specific issues. Use when building iOS/macOS applications with Swift 5.9+, SwiftUI, or async/await concurrency. Invoke for protocol-oriented programming, SwiftUI state management, actors, server-side Swift, UIKit integration, Combine, or Vapor.
Guide for implementing Syncfusion Angular Breadcrumb components for navigation trails. Covers installation, data binding, navigation setup, icons, overflow modes, and template customization. Use this when building breadcrumb navigation that displays user location in hierarchies, enables clicking parent items for navigation, adds icons for visual context, or customizes appearance with templates.
Implements Syncfusion Angular Card components with headers, images, action buttons, and configurable layouts. Use this skill when building flexible, reusable card interfaces with custom styling, CSS classes, and component integration patterns for displaying content in structured card formats.
Produces comprehensive system architecture plans for features and products including component breakdown, data flow diagrams, system boundaries, API contracts, and scaling considerations. Use for "system design", "architecture planning", "feature design", or "technical specs".
Secures webhook receivers with signature verification, retry handling, deduplication, idempotency keys, and error responses. Provides verification code, dedupe storage strategy, runbook for incidents. Use when implementing "webhooks", "webhook security", "event receivers", or "third-party integrations".
Expert guidance for developing cross-platform desktop applications with Avalonia UI framework. Use when building, debugging, or optimizing Avalonia apps including MVVM architecture, XAML design, data binding, styling, theming, custom controls, and cross-platform deployment for Windows, macOS, Linux, iOS, Android, and WebAssembly.
CesiumJS viewer setup - Viewer, CesiumWidget, widgets, Ion token, Scene configuration, SceneMode, factory helpers, geocoders, platform services. Use when initializing a CesiumJS application, configuring viewer widgets, setting Ion access tokens, creating default terrain or imagery, or bootstrapping a 3D globe.
Analyzes events through a computer science lens using computational complexity, algorithms, data structures, systems architecture, information theory, and software engineering principles to evaluate feasibility, scalability, security. Provides insights on algorithmic efficiency, system design, computational limits, data management, and technical trade-offs. Use when: Technology evaluation, system architecture, algorithm design, scalability analysis, security assessment. Evaluates: Computational complexity, algorithmic efficiency, system architecture, scalability, data integrity, security.
Creates structured Request for Comments (RFC) documents for proposing and deciding on significant changes. Use when the user says “write an RFC,” “create a proposal,” “I need to propose a change,” “draft an RFC,” “document a decision,” or needs stakeholder alignment before making a major technical or process decision. Do not use for TDDs/implementation docs (use technical-design-doc-creator instead), README files, or general documentation.
Creates comprehensive developer onboarding documentation and materials including step-by-step setup guides, first-task assignments, expected time per step, common troubleshooting, team introductions, and code walkthrough tours. Use when preparing "new developer onboarding", "first day setup", "junior dev training", or "team member onboarding".
Deploy Django on Google App Engine Standard with Cloud SQL PostgreSQL. Covers Unix socket connections, Cloud SQL Auth Proxy for local dev, Gunicorn configuration, and production-ready settings. Use when deploying Django to App Engine, configuring Cloud SQL PostgreSQL, setting up Unix socket connections, or troubleshooting "No such file or directory", "connection refused", or "FATAL: password authentication failed".
Design forms that convert, validate well, resist spam, and integrate cleanly with downstream systems. Use this skill when designing or auditing any form (contact, signup, checkout, multi-step, embedded), planning validation logic, fighting spam, choosing form tooling, or improving form conversion. Triggers on form design, form validation, form conversion, multi-step form, form spam, captcha, honeypot, form abandonment, signup form, contact form. Also triggers when form completion rates are low or spam is overwhelming.
Expert collection-loop systems for collectible IDs, scavenger hunts, completion archives, nearest-item compass UI, hidden spawners, and persistent find-all-X progress. Use when implementing collectibles, scavenger hunts, completion% archives, or compass-guided item hunts. Keywords: collectible_id, scavenger_hunt, collection_manager, collection_compass, completion_archive, hidden_item_spawner, find_all, collectible_item.
Expert blueprint for educational games including gamification loops (learn/apply/feedback/adapt), progress tracking (student profiles, mastery %), adaptive difficulty (target 70% success rate), spaced repetition, curriculum trees (prerequisite system), and visual feedback (confetti, XP bars). Use for learning apps, training simulations, or edutainment. Trigger keywords: educational_game, gamification, adaptive_difficulty, spaced_repetition, student_profile, curriculum_tree, mastery_tracking.
Expert blueprint for Metroidvanias including ability-gated exploration (locks/keys), interconnected world design (backtracking with shortcuts), persistent state tracking (collectibles, boss defeats), room transitions (seamless loading), map systems (grid-based revelation), and ability versatility (combat + traversal). Use for exploration platformers or action-adventure games. Trigger keywords: metroidvania, ability_gating, interconnected_world, backtracking, map_system, persistent_state, room_transition, soft_locks.
Activate when the user asks about, uses, designs, troubleshoots, or upgrades LiteFlow. Covers LiteFlow 2.16.2 integration and configuration, components, EL, context, executors, scripts, rule sources, Rule-DB, monitoring, dynamic building, testing, source code, Jev smart selection, boolean evaluation and SWITCH/IF routing, as well as AgentScope 2-based liteflow-agent, models, tools, MCP, sessions, events, HITL, Skills, Harness, and A2A. Also helps identify and migrate legacy liteflow-react-agent / ReActAgentComponent usage.
Creates a standalone HTML report mapping a codebase: structure, flows, dependencies, data model, symbols, risks, gaps, and likely next needs. Use for architecture analysis, dependency or flow mapping, an HTML project report, or scripts/sub-agents to list files, functions, classes, and interfaces.
Restructure tangled code into a clear equivalent while preserving behavior. Trigger when the user asks for “readable,” “maintainable,” or “clean” code, a review flags comprehension issues, or the task involves legacy modernization or onboarding cleanup.
Use when the user is working with the Spree 6 product catalog — products, variants, option types/values, the default variant, product types (templates), categories vs collections, custom fields, media (images, video, media library), channel publications, search providers (database, spree_meilisearch, custom), digital assets, or catalog imports/exports. Common phrasings include "create a product", "add variants", "size and color options", "product type", "category tree", "collection", "brand", "custom field on products", "product images", "product video", "primary_media", "product not showing in store", "publish product on channel", "Meilisearch", "reindex", "custom search provider", "digital download", "master variant". Covers the catalog graph and how to read/write it from Ruby, the Admin SDK and `spree api`
Opinionated SwiftUI architecture enforcement for iOS 26 / Swift 6.2 clinic modular MVVM-C apps using local SPM package boundaries. Enforces App-target `DependencyContainer` + route shells, @Observable ViewModels/coordinators, Domain repository/coordinator/error-routing protocols, Data-owned I/O, stale-while-revalidate reads, and optimistic queued sync. Use when writing, reviewing, or refactoring SwiftUI architecture, navigation, dependency wiring, or repository boundaries.
Use when writing or debugging movement built on the Mover plugin: custom movement modes, layered moves, movement modifiers, instant effects, mode transitions, input production, or rollback networking for a Mover pawn. Also use when the user mentions 'Mover plugin', 'MoverComponent', 'CharacterMoverComponent', 'UBaseMovementMode', 'FLayeredMoveBase', 'FMoverSyncState', 'FMoverInputCmdContext', 'FProposedMove', 'ProduceInput', 'QueueNextMode', 'QueueLayeredMove', 'MovementModifier', 'InstantMovementEffect', 'ChaosMover', 'NetworkPrediction backend', or 'MoverExamples'. For UCharacterMovementComponent, see ue-character-movement; for replication mechanics, see ue-networking-replication.
Spartan UI (shadcn for Angular) best practices. Covers Brain/Helm architecture, Tailwind integration, and accessible headless components. Activates when working with @spartan-ng/brain and @spartan-ng/ui. Do not use for Angular Material, PrimeNG, or other component libraries. Install alongside angular-best-practices for full coverage.
CesiumJS camera control - Camera, flyTo, lookAt, setView, ScreenSpaceCameraController, composable Controller camera controllers (1.144), CameraEventAggregator, flight animation. Use when positioning the camera, creating flyTo animations, constraining user navigation, adding custom or asset-inspection camera controllers, tracking entities, or converting between screen and world coordinates
GitHub API integration with managed OAuth. Access repositories, issues, pull requests, commits, branches, and users. Use this skill when users want to interact with GitHub repositories, manage issues and PRs, search code, or automate workflows. For other third party apps, use the api-gateway skill (https://clawhub.ai/byungkyu/api-gateway).
The shared git layer other skills borrow: the worktree path, name, and lifecycle, a worktree's declared setup and teardown, the base branch, rebase versus merge, branch sync, merged-branch cleanup, lost-work recovery, and stacked branches. Use when the user says "make me a worktree for #42", "where's the worktree for this branch", "tear down this worktree", "set up this worktree", "make this worktree's dev database", "what's the base branch here", "should I rebase or merge", "sync this branch with main", "clean up my merged worktrees", "I lost a commit", "stack this on #43", or runs "/gitkit", and whenever another skill needs any of those answers.
Expert blueprint for stealth games (Splinter Cell, Hitman, Dishonored, Thief) covering AI detection systems, vision cones, sound propagation, alert states, light and shadow mechanics, and systemic design. Use when building stealth-action, tactical infiltration, or immersive sim games requiring enemy awareness systems. Keywords: vision cone, detection, alert state, sound propagation, light level, systemic AI, gradual detection.
Expert blueprint for survival games (Minecraft, Don't Starve, The Forest, Rust) covering needs systems, resource gathering, crafting recipes, base building, and progression balancing. Use when building open-world survival, crafting-focused, or resource management games. Keywords survival, needs system, crafting, inventory, hunger, resource gathering, base building.
Expert blueprint for dedicated / headless multiplayer hosts: ENet/DTLS, authority validation, safe packet decode, matchmaker handoff, and health telemetry. Use when building authoritative servers, --headless hosts, or hardening host networking. Keywords: dedicated server, headless, ENet, DTLS, authority, safe_packet_decoder, multiplayer host, WebSocketMultiplayerPeer.
Use when generating, refactoring, reviewing, or debugging Make App single-app permission enforcement: /principal/permission, App-scoped IAM matching, permission-aware Schema, entity/field/operation guards, or permission refresh. Triggered by 单应用权限, 权限范围, 字段可新建、可见、可编辑, creatable, createFields, data.record.*, meta.entity.*, meta.field.*, route guards, or URL bypass. Use make-app-actions for selection and batch actions. Does not own platform-admin permissions, auth, generic Service APIs, UI layout, CanvasTable internals, DSL, deployment, or runtime packaging.
Optimize web performance: bundle size, images, caching, lazy loading, and overall page speed. Use when a site is slow, reducing bundle size, fixing layout shifts, improving Time to Interactive, or optimizing Lighthouse scores. Triggers on: web performance, bundle size, page speed, slow site, lazy loading. Do NOT use for Core Web Vitals-specific fixes (use core-web-vitals), running Lighthouse audits (use perf-lighthouse), or Astro-specific optimization (use perf-astro).
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.