backend-dev-guidelines

Features and purpose

Comprehensive backend development guide for Python/FastAPI/SQLAlchemy applications. Use when creating routes, services, models, schemas, database operations, or working with FastAPI endpoints, SQLAlchemy/Alembic migrations, Pydantic validation, error handling, dependency injection, or async patterns. Covers layered architecture (routes → services → repositories → models), separation of concerns, error handling, performance, testing strategies, and best practices.

Quick start

Follow the repository instructions for this skill and your agent. Review the files and dependencies before adding it to your workflow.