backend-development-patterns

REST API design requires standardized status codes (2xx for success, 4xx for client errors, 5xx for server errors) and consistent error response formats. This Skill provides templates for clean endpoint structures, meaningful error messages, and documented response schemas that ensure predictable client integration and debugging.

Database schema patterns include strategic indexing, constraint design, and normalized structures that prevent anomalies and accelerate queries. This Skill covers schema optimization techniques, index selection strategies, and patterns for common data access patterns across microservices.

Microservices patterns address service composition, inter-service communication, and data consistency. This Skill teaches retry logic, idempotency patterns, and observable architectures that enable services to fail gracefully and recover without cascading failures or data loss.

Yes. This Skill covers API design patterns applicable to both REST and GraphQL, including endpoint design, authentication, authorization, and error handling conventions. The underlying principles—clean interfaces, security, and reliability—adapt to each protocol's strengths.

Backend security patterns cover authentication, authorization, secure error responses, and protection against common vulnerabilities. This Skill integrates security best practices into API and database design so protection is built into architecture, not bolted on afterward.

Observability patterns include structured logging, distributed tracing, and metrics collection across services. This Skill provides templates for instrumenting APIs and databases so you can track requests through microservices, identify bottlenecks, and diagnose failures quickly.