What it does

Provides a comprehensive backend developer skill for defining APIs, database schemas, authentication flows, validation, and migration strategies. The skill codifies conventions (Prisma + PostgreSQL, Zod validation, JWT auth), response and error formats, middleware patterns, and DRY service patterns so agents can produce consistent, production-ready backend designs.

When to use it

Use this skill when the agent must design or modify server-side behavior: creating REST/GraphQL endpoints, defining database models and migrations, implementing authentication/authorization, or specifying validation and error-handling strategies. Ideal for handoffs to frontend, QA, or security.

What's included

Scripts: none included in the repo snapshot
References: no external references bundled
Instructions: detailed conventions for Prisma schemas, API endpoints, response formats, auth flows (access + refresh tokens), Zod validation patterns, middleware, error handling, and migration strategy. Also includes sample service/middleware code and deployment-safe migration checklist.