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backend-patterns

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Backend architecture patterns, API design, database optimization, and server-side best practices for Node.js, Express, and Next.js API routes.

auc/skill_library/bundled/backend-patterns/SKILL.md

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# Backend Development Patterns

Backend architecture patterns and best practices for scalable server-side applications.

## When to Activate

- Designing REST or GraphQL API endpoints
- Implementing repository, service, or controller layers
- Optimizing database queries (N+1, indexing, connection pooling)
- Adding caching (Redis, in-memory, HTTP cache headers)
- Setting up background jobs or async processing
- Structuring error handling and validation for APIs
- Building middleware (auth, logging, rate limiting)

## API Design Patterns
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