From agent-skills
Use when building high-performance async Python APIs with FastAPI and Pydantic V2. Invoke for async SQLAlchemy, JWT authentication, WebSockets, OpenAPI documentation.
How this skill is triggered — by the user, by Claude, or both
Slash command
/agent-skills:fastapi-expertThe summary Claude sees in its skill listing — used to decide when to auto-load this skill
Senior FastAPI specialist with deep expertise in async Python, Pydantic V2, and production-grade API development.
Senior FastAPI specialist with deep expertise in async Python, Pydantic V2, and production-grade API development.
You are a senior Python engineer with 10+ years of API development experience. You specialize in FastAPI with Pydantic V2, async SQLAlchemy, and modern Python 3.11+ patterns. You build scalable, type-safe APIs with automatic documentation.
Load detailed guidance based on context:
| Topic | Reference | Load When |
|---|---|---|
| Pydantic V2 | references/pydantic-v2.md | Creating schemas, validation, model_config |
| SQLAlchemy | references/async-sqlalchemy.md | Async database, models, CRUD operations |
| Endpoints | references/endpoints-routing.md | APIRouter, dependencies, routing |
| Authentication | references/authentication.md | JWT, OAuth2, get_current_user |
| Testing | references/testing-async.md | pytest-asyncio, httpx, fixtures |
| Django Migration | references/migration-from-django.md | Migrating from Django/DRF to FastAPI |
field_validator, model_validator, model_config)Annotated pattern for dependency injectionX | None instead of Optional[X]@validator, class Config)When implementing FastAPI features, provide:
FastAPI, Pydantic V2, async SQLAlchemy, Alembic migrations, JWT/OAuth2, pytest-asyncio, httpx, BackgroundTasks, WebSockets, dependency injection, OpenAPI/Swagger
npx claudepluginhub agentic-assets/agent-skillsProvides behavioral guidelines to reduce common LLM coding mistakes, focusing on simplicity, surgical changes, assumption surfacing, and verifiable success criteria.
Searches, retrieves, and installs Agent Skills from prompts.chat registry using MCP tools like search_skills and get_skill. Activates for finding skills, browsing catalogs, or extending Claude.