Languages & Frameworks for Claude Code

React Native best practices, performance optimization, and GitHub workflows by Callstack.

16 skills covering Makepad DSL, widgets, layouts, shaders, Robius patterns, and MolyKit AI integration

161 Apple platform development skills across 23 categories (iOS, macOS, watchOS, visionOS): code generators, product workflow, App Store/ASO, testing and TDD, design, performance, security, and more. Surfaced as 23 category skills that route to the full library.

Pair programming protocol for marimo notebooks

KSafe — Kotlin Multiplatform encrypted persistence: patterns, anti-patterns, and gotchas for AI agents

Retrieve up-to-date documentation for software libraries, frameworks, and components via the Context7 API. This skill should be used when looking up documentation for any programming library or framework, finding code examples for specific APIs or features, verifying correct usage of library functions, or obtaining current information about library APIs that may have changed since training.

This skill helps with GitHub Copilot SDK work across Node.js/TypeScript, Python, Go, .NET, and Java. It covers setup, authentication, permissions, streaming events, custom tools, custom agents, MCP servers, hooks, skills, and session persistence.

Semantic code search using mgrep for efficient codebase exploration. This skill should be used when searching or exploring codebases with more than 30 non-gitignored files and/or nested directory structures. It provides natural language semantic search that complements traditional grep/ripgrep for finding features, understanding intent, and exploring unfamiliar code.

This skill provides comprehensive instructions for interacting with the Notion API via REST calls. This skill should be used whenever the user asks to interact with Notion, including reading, creating, updating, or deleting pages, databases, blocks, comments, or any other Notion content. The skill covers authentication, all available endpoints, pagination, error handling, and best practices.

Build and deploy web apps and agents

Telnyx WebRTC — browser-based real-time communications, video rooms, WebRTC client SDKs

Modern R development skills for tidyverse, rlang, Bayesian analysis, performance, and more

Reddit API на shell-скриптах: пользователи, сабреддиты, посты, комментарии, поиск, write с двойным предохранителем

Essential Elixir and Phoenix LiveView development guide with enforced skills, hooks, and patterns for idiomatic code

nteract notebooks (nightly channel) in Claude Code.

nteract notebooks in Claude Code.

Skill: Spectrum design tokens and component schemas, zero config. Uses the embedded Spectrum snapshot via the design-data CLI.

Claude Essentials - Complete development toolkit with 1 command, 18 skills, and 4 agents unified under ce namespace

Migrate a WordPress site (WXR export + uploads) to a Hugo static site on GitHub Pages — preserves /archives/<id>/ URLs, localizes images, deploys via GitHub Actions.

Build UiPath Studio projects, REFramework scaffolds, XAML workflows, and VB/C# expressions via 104 deterministic Python generators. Trigger keywords: UiPath, REFramework, XAML, RPA, Orchestrator, dispatcher, performer, queue items, project.json, Config.xlsx.

BPX plugin for Unreal Engine asset inspection and safe edit workflows.

Help coding agents integrate with the Shuriken trading platform via its API, SDK, and CLI.

14 Apple HIG skills (foundations, platforms, patterns, inputs, technologies, and 8 component categories) plus an MCP server (hig_list_skills / hig_lookup / hig_audit) and a Bun-based CLI auditor that detects 348 HIG patterns across SwiftUI, UIKit, React, Vue, Svelte, Angular, Compose, Flutter, and React Native.

Build and deploy Base44 full-stack apps with CLI project management and JavaScript/TypeScript SDK development skills

A full Wolfram Language development environment with code evaluation, documentation search, symbol inspection, static analysis, and test execution.

Design and build database schema — tables, columns, types, indexes, constraints, relationships. Given a domain description, output the schema and write the files. Use when asked to "design schema", "database design", "create tables", or "data model".

Build production-grade infrastructure as code for a service or project. Use when asked to "set up infra", "provision infrastructure", "create cloud resources", "IaC for this project", "terraform for this", or "deploy this service".

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Implement a reusable, accessible, typed component from a design spec. Use when asked to "create a component", "build a widget", "implement this design", or "reusable UI element".

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Implement a complete UI screen or feature from a Form visual spec. Use when asked to "build a page", "implement this screen", "build the frontend for this feature", or "create this UI".

Backend engineer — APIs, system design, performance, distributed systems

Design and spec an API — endpoints, request/response shapes, error codes, auth pattern, pagination. Applies Stripe's consistency principles. Use when asked to "design an API", "build API endpoints", "create REST API", or "API for this feature".