Skills
98,639 packaged capabilities and playbooks for agents. Install any of them with one command.
Development
Write tests using React Native Testing Library (RNTL) v13 and v14 (`@testing-library/react-native`). Use when writing, reviewing, or fixing React Native component tests. Covers: render, screen, queries (getBy/getAllBy/queryBy/findBy), Jest matchers, userEvent, fireEvent, waitFor, and async patterns. Supports v13 (React 18, sync render) and v14 (React 19+, async render). Triggers on: test files for React Native components, RNTL imports, mentions of "testing library", "write tests", "component tests", or "RNTL".
Redis database expert for caching, data structures, Pub/Sub, Streams, Lua scripting, and performance optimization using Bun.redis native client. Use when working with Redis, caching strategies, key-value stores, real-time data, vector search, or document databases. Works alongside bun-expert skill.
Create evidence-backed repository intent docs for AI coding agents, including certainty levels, evidence anchors, open questions, and review workflow. Trigger on document repo intent, REPO_INTENT.md, or what this repo is for. Do NOT use for ordinary README polishing.
Designs retrieval strategies for querying knowledge graphs in RAG systems, covering pattern selection (global-first, local-first, U-shaped hybrid), query decomposition for multi-hop reasoning, ranking and constraint configuration, and provenance tracking for citation. Use when designing retrieval pipelines, orchestrating search over knowledge graphs, or when user mentions retrieval strategy, search orchestration, query decomposition, multi-hop reasoning, provenance tracking, or citation in GraphRAG.
Design review for existing Motoko backends — judging whether code is well designed, not how to write it. Covers invariants encoded in types (variants over Text, correlated fields, case _ smells), stable vs transient state discipline under enhanced migration, file structure (types.mo/lib/mixins/main.mo), and severity-ranked findings (Blocker/Warning/Note). Use when reviewing, auditing, critiquing, or refactoring existing .mo files, or when asked for code-review feedback on a Motoko canister. Do NOT use for writing new Motoko code or fixing compiler errors (writing-motoko), authoring migration files (migrating-motoko-actors), or deployment.
RouterOS command tree introspection via /console/inspect API. Use when: building tools that parse RouterOS commands, generating API schemas from RouterOS, working with /console/inspect, mapping CLI commands to REST verbs, traversing the RouterOS command hierarchy, or when the user mentions inspect, command tree, RAML, or OpenAPI generation for RouterOS.
This skill should be used when auditing Effect TypeScript compliance, or when users mention effect scan, effect audit, effect best-practices checks, or scan-effect-solutions. It provides a structured compliance checklist for TypeScript configuration, services/layers, data modeling, error handling, config, testing, runtime execution, and Option/Either anti-patterns.
Covers classical machine learning in Python with scikit-learn (sklearn): classification and regression estimators, clustering and dimensionality reduction, preprocessing, Pipeline and ColumnTransformer, cross-validation, metrics, and GridSearchCV hyperparameter tuning. Use when training or comparing classifiers and regressors on tabular or text data, clustering data and choosing the cluster count, building leakage-free preprocessing pipelines, evaluating models with cross-validation and metrics, or tuning hyperparameters. Not for deep learning; use a dedicated neural network framework instead.
Make Sentry stack traces readable—upload source maps for JavaScript/TypeScript, or debug files for native and mobile (dSYM, ProGuard/R8, NDK symbols, Dart obfuscation maps, .NET PDBs). Use when frames in Sentry show minified names, bundled paths, hex addresses, “unknown”, or method names with no file/line, instead of your original source.
Set up Sentry releases and deploy tracking — tag events with a version and environment, create the release in CI with its commits, and wire up suspect commits and code mappings, so Sentry can show which release introduced an issue, which commit is responsible, and release health. Use when asked to set up releases, track deploys, see what changed, or when issues show an unknown release or no suspect commit.
Break a tRPC backend into multiple services with custom routing links that split on the first path segment (op.path.split('.')) to route to different backend service URLs. Define a faux gateway router that merges service routers for the AppRouter type without running them in the same process. Share procedure and router definitions via a server-lib package with a single initTRPC instance. Each service runs its own standalone/Express/Fastify server.
Settle an effort once its pull request is approved - merge it, run the post-merge follow-ups, carry unfinished work into next-effort tickets, close the spec and tickets, then settle the session. Use when the user says to settle the effort, or when another skill says to
Manages shadcn components and projects — adding, searching, fixing, debugging, styling, and composing UI. Provides project context, component docs, and usage examples. Applies when working with shadcn/ui, component registries, presets, --preset codes, or any project with a components.json file. Also triggers for "shadcn init", "create an app with --preset", or "switch to --preset".
Expert knowledge for GPU shader development across GLSL, HLSL, ShaderLab, and compute shadersUse when "write shader, shader code, GLSL, HLSL, ShaderLab, vertex shader, fragment shader, pixel shader, compute shader, post-processing, visual effects, screen effect, bloom effect, outline shader, toon shader, water shader, dissolve effect, custom material, render texture, GPU compute, raymarching, SDF, signed distance field, shader, glsl, hlsl, shaderlab, gpu, graphics, rendering, visual-effects, post-processing, compute, webgl, vulkan, directx, metal, opengl" mentioned.
Use this skill for all GitHub write operations in creative-graphic-design organization repositories (such as design-generators), including git commits and pushes, PR creation and updates, issue and PR comments, labels, milestones, and user-requested merges. Perform them as the creative-graphic-design-dev machine user. Use it both when the user explicitly requests the bot or dev account and whenever beginning write work in a creative-graphic-design organization repository without an explicit request; never use it in repositories of any other organization or host.
Use this skill when converting custom PyTorch models to Hugging Face Transformers format. Helps with: (1) Creating PretrainedConfig and PreTrainedModel classes, (2) Writing ImageProcessor/Tokenizer, (3) Compatibility testing, (4) Hub upload preparation. Use when the user wants to make their model compatible with transformers library.
Run commands in an isolated Linux microVM sandbox using the shuru CLI. Use when the user asks to execute untrusted code, install packages safely, test in a clean environment, run Docker containers or a headless browser inside a VM, or needs Linux-specific tooling on macOS.
Best practices for integrating social media APIs (Instagram, TikTok, YouTube, Twitter/X, LinkedIn, Facebook, Threads, Pinterest, Bluesky, Snapchat, Google Business, Reddit, Telegram). Covers OAuth, AT Protocol, rate limiting, media uploads, encryption, and error handling. Use when building social media integrations, scheduling systems, or debugging platform API issues.
Use when defining or changing SpacetimeDB tables, columns, constraints, primary keys, unique constraints, indexes, auto-increment fields, default values, event tables, schedule tables, access permissions, file storage, or table performance. Triggers on: table, column, primary key, unique, index, btree, direct index, event table, schedule table.
Identify underspecified areas in the current feature spec by asking up to 5 highly targeted clarification questions and encoding answers back into the spec. Use when this step of the Spec Kit workflow is needed (based on the official GitHub Spec Kit template).
Split an implementation-ready spec into the fewest independently deliverable vertical tasks and select only risk-justified intermediate review checkpoints. Use when a spec has multiple outcomes needing separate delivery or dependency tracking; keep one coherent outcome as the spec itself.
Investigate, optimize, or review software performance using representative measurements, profiles, budgets, and regression evidence. Use when latency, throughput, resource use, loading, rendering, bundle cost, or scalability is a primary concern. Do not use for speculative micro-optimization without a symptom, target, or demonstrated bottleneck.
Implements Syncfusion JavaScript accumulation charts (Pie, Doughnut, Funnel, Pyramid) for proportional and percentage-based visualizations. Use when displaying categorical or proportional data. Covers legend and label configuration, interactivity, accessibility, and customization. Works with TypeScript (modules) and JavaScript (CDN/ES5).
Implements the Syncfusion Rich Text Editor and Markdown Editor using TypeScript (ej2-richtexteditor). Supports both HTML (WYSIWYG) and Markdown modes via editorMode on a single RichTextEditor class. Use this skill for toolbar setup, image/media/table handling, inline or iframe editing, AI assistant, smart editing, import/export, and all content editor scenarios.
Implement the Syncfusion Essential JS 2 TypeScript Scheduler (Schedule) component for event and appointment management. Use this when working with scheduling interfaces, calendar views, appointment CRUD operations, or resource management. This skill covers scheduler setup, views configuration, appointments handling, recurring events, resource scheduling, timeline views, editor templates, exporting functionality, timezone support, styling, and accessibility features.
Create and customize barcode, QR code, and Data Matrix components using Syncfusion Vue Barcode Generator. Use this skill when implementing barcode generation, QR code creation, Data Matrix codes, export functionality, and barcode styling. Covers Syncfusion's BarcodeGenerator, QRCodeGenerator, and DataMatrixGenerator components for Vue applications (Composition API and Options API).
Common utilities and features for Syncfusion Vue components. Use this skill when the user needs to implement animations, drag-and-drop, state persistence, RTL support, localization, globalization, security, templates, and advanced features for Syncfusion Vue components.
Use this skill when the user asks about Syncfusion Vue licensing, license keys, license registration, license validation errors, trial licenses, or license troubleshooting. This skill provides comprehensive guidance on generating, registering, and managing Syncfusion license keys for Vue applications, including edition-based and platform-based licensing models, registration methods, CI/CD integration, and resolving common licensing errors.
Write clear technical documentation following Tenzir's style conventions. Use when writing or editing docs, README files, API documentation, user guides, changelog descriptions, or error messages. Also use when the user asks about writing style, tone, formatting, capitalization rules, inclusive language, or how to structure technical content — even if they don't mention "documentation" explicitly.
Use this skill to maintain ROADMAP.md whenever the user wants to "add an item to the roadmap", "put these in the roadmap", "update the roadmap", "mark a feature done", "log the work I shipped", "create a roadmap", "what should we build next", "brainstorm features", "audit the roadmap", "work through the roadmap", or file hands-on checks like "add the release sign-off to the plan" — even if they don't mention the roadmap file by name. Covers the generate, update, audit, brainstorm, and resume modes. Do NOT use this skill for session-level task progress (see track-session) or free-form idea backlogs that aren't landing in a roadmap file.
UiPath Coded Apps — scaffold, build, run, and deploy Coded Web Apps and Coded Action Apps: React/TypeScript apps that call UiPath Cloud APIs via the `@uipath/uipath-typescript` SDK and ship to Automation Cloud (push/pull to Studio Web, pack, publish, deploy, OAuth-PKCE). Also generates live analytics & governance dashboards from a plain-language request, wired to tenant data via the Insights real-time API, with edit and deploy flows. For RPA→uipath-rpa, Python agents→uipath-agents, Maestro flows→uipath-maestro-flow, solution packaging→uipath-solution, JS/TS function backends (`defineFunction`, `uip function serve`)→uipath-functions.
Use this skill to reason about the three-piece ADB topology (client CLI, host server on TCP 5037, on-device daemon `adbd`), the lifecycle commands `adb start-server` / `adb kill-server` / `adb reconnect`, ADB environment variables (`ADB_TRACE`, `ADB_VENDOR_KEYS`, `ANDROID_ADB_SERVER_PORT`, `ANDROID_SERIAL`, `ADB_LOCAL_TRANSPORT_MAX_PORT`, `ADB_MDNS_AUTO_CONNECT`, `ADB_MDNS_OPENSCREEN`, `ADB_LIBUSB`, `ADB_BURST_MODE`), the host RSA key pair under `~/.android/`, the server log location, and version mismatches between Android Studio's bundled `platform-tools` and a system-installed `adb`. Use when the user mentions `daemon not running; starting now`, `server version doesn't match`, port 5037 collisions, ADB_TRACE, vendor keys, mDNS Openscreen vs Bonjour, libusb regressions, "adb is being weird", or asks "what does adb actually do".
Unity scene and asset architecture decisions. Additive scene composition, Addressables vs Resources, AssetReference workflow, asset lifecycle coordination, loading screens. DECISION format: WHEN/DECISION/SCAFFOLD/GOTCHA. Based on Unity 6.3 LTS.
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.