Content & Media

Use when FastAPI validation with Pydantic models. Use when building type-safe APIs with robust request/response validation.

Use when building React Native UI components with core components, custom components, and component patterns. Covers View, Text, Image, ScrollView, FlatList, and component composition.

Use when creating or modifying GitHub Actions workflow files. Provides guidance on workflow syntax, triggers, jobs, steps, and expressions for creating valid GitHub Actions workflows that can be tested locally with act.

Use when applying encapsulation and information hiding principles in object-oriented design. Use when controlling access to object state and behavior.

Use when querying data with Ecto.Query DSL including where clauses, joins, aggregates, preloading, and query composition. Use for building flexible database queries in Elixir applications.

Use when lINQ query and method syntax, deferred execution, and performance optimization. Use when querying collections in C#.

Use when setting up or configuring Storybook for a project. Covers main configuration, addons, builders, and framework-specific setup.

Use when nim-C interoperability including calling C from Nim, wrapping C libraries, importc/exportc pragmas, header generation, FFI patterns, and building high-performance systems code integrating Nim with existing C codebases.

Use when lua tables as the universal data structure including arrays, dictionaries, objects, metatables, object-oriented patterns, data structures, and advanced table manipulation for building flexible, efficient Lua applications.

Use when nestJS dependency injection with providers, modules, and decorators. Use when building modular NestJS applications.

Use when ruboCop cops including built-in cops, configuration, auto-correction, and development.

Expert guidance for using the GitLab CLI (glab) to manage GitLab issues, merge requests, CI/CD pipelines, repositories, and other GitLab operations from the command line. Use this skill when the user needs to interact with GitLab resources or perform GitLab workflows.

Use when optimizing Tailwind CSS for production, reducing bundle size, and improving performance. Covers PurgeCSS, JIT mode, and build optimization.

Use when implementing iOS 17+ privacy manifests for CocoaPods libraries. Covers PrivacyInfo.xcprivacy file creation, required reasons API declarations, and proper resource bundle integration for App Store compliance.

Use when creating or modifying Storybook stories for components. Ensures stories follow CSF3 format, properly showcase component variations, and build successfully.

Use when designing monorepo structure, organizing packages, or migrating to monorepo architecture with architectural patterns for managing dependencies and scalable workspace configurations.

Use when applying Phoenix Framework best practices including context design, controller patterns, and application architecture. Use when building Phoenix applications.

Use when C# asynchronous programming with async/await, Task, ValueTask, ConfigureAwait, and async streams for responsive applications.

Use when designing system architecture, making high-level technical decisions, or planning major system changes. Focuses on structure, patterns, and long-term strategy.

Use when objective-C protocols for defining interfaces and categories for extending classes, including formal protocols, optional methods, class extensions, and patterns for modular, reusable code design.