# Agent Backend Patterns

> Master backend logic, APIs, and microservices architectures. Covers REST, GraphQL, caching, and database transactions.

- Skill: `dokhacgiakhoa/agent-backend-patterns` (Agent Skill, multi-file: 17 files)
- Install (CLI): `npx skillmds@latest add dokhacgiakhoa/agent-backend-patterns`
- Raw SKILL.md: https://api.skillmd.com/api/skills/dokhacgiakhoa/agent-backend-patterns/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: AI & ML
- Author: Dokhacgiakhoa (https://skillmd.com/u/dokhacgiakhoa)
- Updated: 2026-09-09
- Page: https://skillmd.com/skills/dokhacgiakhoa/agent-backend-patterns

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

## API Design Patterns

## 🧠 Knowledge Modules (Fractal Skills)

### 1. [RESTful API Structure](./sub-skills/restful-api-structure.md)
### 2. [Repository Pattern](./sub-skills/repository-pattern.md)
### 3. [Service Layer Pattern](./sub-skills/service-layer-pattern.md)
### 4. [Middleware Pattern](./sub-skills/middleware-pattern.md)
### 5. [Query Optimization](./sub-skills/query-optimization.md)
### 6. [N+1 Query Prevention](./sub-skills/n1-query-prevention.md)
### 7. [Transaction Pattern](./sub-skills/transaction-pattern.md)
### 8. [Redis Caching Layer](./sub-skills/redis-caching-layer.md)
### 9. [Cache-Aside Pattern](./sub-skills/cache-aside-pattern.md)
### 10. [Centralized Error Handler](./sub-skills/centralized-error-handler.md)
### 11. [Retry with Exponential Backoff](./sub-skills/retry-with-exponential-backoff.md)
### 12. [JWT Token Validation](./sub-skills/jwt-token-validation.md)
### 13. [Role-Based Access Control](./sub-skills/role-based-access-control.md)
### 14. [Simple In-Memory Rate Limiter](./sub-skills/simple-in-memory-rate-limiter.md)
### 15. [Simple Queue Pattern](./sub-skills/simple-queue-pattern.md)
### 16. [Structured Logging](./sub-skills/structured-logging.md)