Cpp

This skill covers the complete workflow for creating React Native Nitro Modules: scaffolding monorepos with Nitrogen, authoring TypeScript HybridObject specs, generating native boilerplate, implementing platform code in C++, Swift, and Kotlin, and preparing modules for publication. Learn how the codegen pipeline transforms `.nitro.ts` specs into native bindings, manage HybridObject state and lifecycle, design factory methods for native resources, and integrate example apps and testing. Pair with api-design for general library shape and with language-specific skills (swift, kotlin, cpp) for platform implementation details.

This skill guides you through building robust Swift code with strong API boundaries and idiomatic Apple-platform patterns. It emphasizes type-safe design to make invalid states unrepresentable, choosing a single concurrency model upfront, and keeping synchronous operations cheap and nonblocking. Use it when working with Foundation APIs, async/await, actors, or Swift-backed Nitro Module implementations.

Api Design teaches you how to shape coherent public APIs for TypeScript, JavaScript, React, and React Native libraries before implementation. It covers designing explicit types, stable semantics, and clean public contracts while avoiding common pitfalls like untyped dictionaries and boolean clusters. Use this skill to review exported functions, classes, hooks, and options objects—or pair it with build-nitro-modules when working with Nitro-backed libraries.

This skill covers contemporary C++ practices from C++11 onward, emphasizing memory safety through smart pointers (unique_ptr, shared_ptr, weak_ptr) and the RAII pattern for automatic resource cleanup. You'll explore move semantics and perfect forwarding to optimize performance, dive into function and class templates with specialization techniques, and learn STL containers and algorithms for efficient data manipulation.

Cpp Idioms teaches you how to write safe, efficient C++ code using modern language features and proven design patterns. Learn RAII principles, smart pointer ownership models, move semantics, and error handling with std::expected—all grounded in C++17/20/23 standards. The skill covers interfaces, dependency injection, testing strategies, and anti-patterns to avoid, with practical code examples and tooling guidance.

C++ Expert provides in-depth instruction on contemporary language standards and advanced development practices. Learn concepts, ranges, coroutines, and memory strategies alongside performance techniques like zero-cost abstractions and compile-time computation. Build proficiency with smart pointers, move semantics, and template metaprogramming for production-grade applications.