building-pydantic-ai-agents

SKILL.md

Building AI Agents with Pydantic AI

Pydantic AI is a Python agent framework for building production-grade Generative AI applications.
This skill provides patterns, architecture guidance, and tested code examples for building applications with Pydantic AI.

When to Use This Skill

Invoke this skill when:

User asks to build an AI agent, create an LLM-powered app, or mentions Pydantic AI

User wants to add tools, capabilities (thinking, web search), or structured output to an agent

User asks to define agents from YAML/JSON specs or use template strings

User wants to stream agent events, delegate between agents, or test agent behavior

Code imports pydantic_ai or references Pydantic AI classes (Agent, RunContext, Tool)

User asks about hooks, lifecycle interception, or agent observability with Logfire

Do not use this skill for:

The Pydantic validation library alone (pydantic/BaseModel without agents)

Other AI frameworks (LangChain, LlamaIndex, CrewAI, AutoGen)

General Python development unrelated to AI agents