Fastapi Code Review

Reviews FastAPI codebases for routing, dependency injection, validation, and async patterns. Checks that routes have response models, dependencies use Depends() properly, Pydantic handles validation, and handlers avoid blocking I/O. The gates are thorough, requiring you to verify route decorators, trace blocking calls with file locations, and confirm auth dependencies before flagging issues. It knows idiomatic FastAPI patterns that look weird but are correct, like async handlers without await or returning plain dicts when response_model is set. Good for teams who want structured FastAPI reviews that don't flag framework features as bugs.