graphql-expert

The graphql-expert skill provides professional-grade expertise for developing, optimizing, and maintaining GraphQL APIs with a strong focus on type safety, schema design, and federation architecture. It addresses the challenges developers face when implementing complex GraphQL systems, such as query performance bottlenecks, security vulnerabilities, and schema inconsistencies. By guiding the user through best practices and anti-hallucination protocols, this skill ensures that API implementations are reliable, maintainable, and compliant with the official GraphQL specification and Apollo Server standards.

This skill encompasses core capabilities including type-safe API development, resolver optimization, schema-first design, and federated microservice architecture. It emphasizes test-driven development (TDD), performance awareness, security by default, and fail-fast principles. Users are instructed to verify all imports, configurations, directives, and DataLoader patterns against official documentation, avoiding common pitfalls like hallucinated GraphQL directives or incorrect federation resolver syntax. The skill also provides structured workflows, such as writing failing tests before implementation, to ensure code correctness and maintainability.

Targeted primarily at experienced developers, API engineers, and software architects, graphql-expert is ideal for teams building scalable GraphQL services, integrating Apollo Server, or designing federated microservices. It is particularly valuable in scenarios that demand high performance, robust security, and precise type safety. Organizations aiming to prevent runtime failures, schema errors, and inefficient queries will benefit from this skill, which serves both as a hands-on implementation guide and a reference for industry-standard best practices.