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Build Pydantic AI Agents in Python Using Structured Outputs and Tools for Production Applications

Pydantic AI agents represent a theoretical framework where Large Language Models (LLMs) operate within constrained, type-safe environments defined by specific input dependencies and validated structured outputs. This mechanism ensures that agent reasoning is grounded in external domain data models rather than generating unstructured free-text responses unsuitable for production systems. The core principle establishes an integration layer between probabilistic generative AI components and deterministic programming logic through rigorous schema validation at the interface of tools and state.