GraphQL API Development A comprehensive skill for building production-ready GraphQL APIs using graphql-js. Master schema design, type systems, resolvers, queries, mutations, subscriptions, authentication, authorization, caching, testing, and deployment strategies. When to Use This Skill Use this skill when: - Building a new API that requires flexible data fetching for web or mobile clients - Replacing or augmenting REST APIs with more efficient data access patterns - Developing APIs for applications with complex, nested data relationships - Creating APIs that serve multiple client types (web,…