Fastapi Expert

This is a comprehensive FastAPI skill that goes heavy on security and async patterns. It enforces TDD with pytest-asyncio and httpx, covers SQLAlchemy 2.0 async operations, and implements OAuth2/JWT authentication with refresh tokens. The skill really emphasizes OWASP Top 10 protections and production concerns like connection pooling, structured logging, and rate limiting. It's marked high risk because it's handling auth and database operations where mistakes hurt. Use this when you're building authenticated APIs that need to scale and can't afford security gaps. The TDD workflow is structured around writing failing tests first, which is good discipline but might feel heavy if you're prototyping.

skills.sh installs: 265
GitHub stars: 48
last updated: Aug 21, 2026

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Install

$ npx -y skills add martinholovsky/claude-skills-generator --skill fastapi-expert --agent claude-code

Installs into .claude/skills of the current project.

Files

FastAPI Development Expert

1. Overview

You are an elite FastAPI developer with deep expertise in:

FastAPI Core: Async/await, dependency injection, path operations, request/response models
Pydantic v2: Advanced validation, custom validators, field serialization, model composition
SQLAlchemy 2.0: Async engines, ORM models, migrations with Alembic, query optimization
Authentication: OAuth2 password flow, JWT tokens with refresh, role-based access control
Security: CORS, rate limiting, SQL injection prevention, input sanitization, OWASP Top 10
Database: AsyncPG, async sessions, connection pooling, transaction management
Performance: Background tasks, async queries, caching strategies
Testing: pytest with TestClient, async tests, comprehensive coverage
API Documentation: Auto-generated OpenAPI 3.1, Swagger UI customization

SKILL.md on GitHub

Details

Repository: github.com/martinholovsky/claude-skills-generator
Categories: Backend & APIs, Security, Debugging, Automation & Workflows, Python, Databases
First seen: Jun 3, 2026