backend-api

Define API contracts and data models for Node.js backend applications.

22|6|Updated Mar 10, 2026
One-click install
npx skills add https://github.com/felvieira/claude-skills-fv --skill backend-api-felvieira
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: backend-api
Source: https://github.com/felvieira/claude-skills-fv/tree/main/skills/03-backend-api
Command: npx skills add https://github.com/felvieira/claude-skills-fv --skill backend-api-felvieira

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This skill helps engineering teams design and codify backend APIs, data models, and server logic, turning vague requirements into concrete contracts and implementation plans.

Core Features & Use Cases

  • API contracts: REST/GraphQL schemas, OpenAPI/docs generation, and contract testing.
  • Data modeling: Prisma/PostgreSQL schemas, migrations, and validation.
  • Server-side logic: authentication, authorization, and validation patterns across Node.js stacks.

Quick Start

Describe your backend requirements and I will produce API contracts, data models, and server-side guidelines.

Frequently Asked Questions about backend-api

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

FAQPage Schema
How do I define API contracts and data models for a Node.js backend?

To define API contracts and data models for a Node.js backend, you outline REST/GraphQL schemas, configure PostgreSQL structures via Prisma ORM, and apply Zod-based validation to solidify server-side logic and rules.

What is the best way to structure JWT authentication and server-side validation?

Structuring JWT authentication and server-side validation involves defining specific authentication patterns and applying Zod schemas across your Node.js stacks to ensure robust data integrity and secure access control before requests reach your logic.

Can I generate OpenAPI documentation from my existing PostgreSQL schemas?

Generating OpenAPI documentation from PostgreSQL schemas requires mapping your Prisma ORM data models and API endpoint definitions into standardized OpenAPI patterns, transforming vague database structures into concrete, documented API contracts.

Does Prisma ORM work with Zod-based validation for backend migrations?

Prisma ORM works seamlessly with Zod-based validation for backend migrations by defining your PostgreSQL database structure and applying runtime schema validation across Node.js stacks to maintain data consistency during model updates.

When do I need to generate OpenAPI documentation patterns for API contracts?

You need to generate OpenAPI documentation patterns for API contracts when transforming vague backend requirements into concrete agreements, ensuring engineering teams have standardized REST/GraphQL schemas for contract testing and implementation.