PydanticAI & PydanticGraph Expert Skill

PydanticAI is a Python agent framework for building production-grade GenAI applications, built by the team behind Pydantic. PydanticGraph is its companion graph/state-machine library.

Install:

pip install pydantic-ai               # Full install (all providers)
pip install "pydantic-ai-slim[openai]" # Minimal install + your provider

Quick Reference

from pydantic_ai import Agent

# Basic agent — one line
agent = Agent('openai:gpt-5.2', instructions='Be concise.')