Backend Development Instructions

This skill provides general guidance for backend development across various projects. Use this when working with server-side applications, APIs, and database integrations.

General Principles

API Design

• Use RESTful conventions for resource-based endpoints
• Use proper HTTP methods: GET (read), POST (create), PUT/PATCH (update), DELETE (delete)
• Return appropriate status codes: 200, 201, 204, 400, 401, 403, 404, 500
• Use versioning in URLs: /api/v1/resource

Security

• Never expose sensitive data in responses
• Validate and sanitize all inputs
• Use parameterized queries to prevent SQL injection
• Implement proper authentication and authorization
• Use HTTPS in production