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backend-expert

Build scalable Node.js/TypeScript backends with layered architecture and secure practices.

Updated Aug 23, 2026
Search Tags:#typescript#architecture#security#nodejs#api-design#db-optimization#design-backend
One-click install
npx skills add https://github.com/gonzoblasco/antigravity-developer-stack --skill backend-expert
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: backend-expert
Source: https://github.com/gonzoblasco/antigravity-developer-stack/tree/main/backend-infra/backend-expert
Command: npx skills add https://github.com/gonzoblasco/antigravity-developer-stack --skill backend-expert

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill helps engineers build scalable Node.js/TypeScript backends using clean architecture, layered responsibilities, and secure practices to reduce maintenance burden and improve reliability.

Core Features & Use Cases

  • Architecture: enforce Layered Architecture (Routes → Controllers → Services → Repositories) for clear separation of concerns.
  • API & Data: design robust APIs, implement Repository pattern, optimize DB access, and apply caching strategies.
  • Security & Quality: centralized error handling, input validation, and authentication/authorization patterns for secure services.
  • Use Case: Example: building a B2B API with precise service boundaries, testable modules, and observable metrics.

Quick Start

  1. Set up a Node.js project with your preferred framework (Express, NestJS, or Fastify).
  2. Implement the Layered Architecture and a sample API route with Controllers, Services, and Repositories.
  3. Add validation, error handling, and security middleware; iterate with tests and performance profiling.

Frequently Asked Questions about backend-expert

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I structure a Node.js backend with clean architecture and layered separation?▼

Structure your Node.js backend using a layered architecture of Routes, Controllers, Services, and Repositories. This separation enforces clear service boundaries, making modules testable and reducing maintenance burden in scalable APIs.

What's the best way to design scalable APIs in TypeScript using Express, NestJS, or Fastify?▼

Design scalable TypeScript APIs by applying the Repository pattern, centralized error handling, and input validation. This approach works across Express, NestJS, and Fastify to ensure robust, secure service boundaries.

How do I implement security and authentication patterns in a Node.js backend?▼

Implement security in your Node.js backend by adding centralized error handling, input validation, and authentication/authorization patterns as middleware. This ensures secure services and protects data access layers.

When do I need the Repository pattern for database optimization in a Node.js application?▼

Use the Repository pattern when you need to optimize database access and apply caching strategies in a Node.js application. It abstracts data access layers, ensuring efficient data retrieval and clear separation of concerns.

Can I use this backend architecture approach for building B2B APIs with observable metrics?▼

Yes, this architecture approach is suited for building B2B APIs with precise service boundaries, testable modules, and observable metrics. It supports complex real-world projects while maintaining strict modular separation.

Why does my TypeScript backend suffer from high maintenance burden and unreliable data access?▼

Your TypeScript backend likely suffers from high maintenance burden due to missing layered responsibilities and unoptimized data access. Applying clean architecture with Repository patterns and centralized validation improves reliability.

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