API Design Principles
Guides the design, review, and standardization of scalable, intuitive REST and GraphQL APIs.
The API Design Principles skill equips Claude Code with industry-standard patterns and best practices for architecting robust REST and GraphQL APIs. It guides developers through resource-oriented design, HTTP method semantics, status code mapping, schema-first GraphQL modeling, DataLoader optimization, and API versioning strategies. Whether you are drafting a new API specification from scratch, refactoring legacy endpoints, establishing organization-wide API standards, or migrating between REST and GraphQL paradigms, this skill ensures your backend interfaces are developer-friendly, performant, and maintainable.
Key Features
01Pagination, rate limiting, and OpenAPI/Swagger documentation best practices
02Schema-first GraphQL modeling, cursor pagination, and N+1 query prevention
03Multi-strategy API versioning guidance across URL, header, and query params
04Resource-oriented RESTful architecture and HTTP method semantic validation
05Standardized error formatting and HTTP status code mapping
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Use Cases
01Establishing team-wide API design standards and OpenAPI documentation guidelines
02Designing and reviewing new REST or GraphQL API schemas before implementation
03Migrating legacy backend endpoints or transitioning between REST and GraphQL paradigms