pydantic-ai
https://github.com/pydantic/pydantic-ai
Python
GenAI Agent Framework, the Pydantic way
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- Issues
- Add conversation evaluators and shared OTel conversation extraction utilities
- Add curated quality metrics pack (Faithfulness, AnswerRelevance, GEval, GembaScore, …)
- Add agentic span-based evaluators (ToolCorrectness, TrajectoryMatch, ArgumentCorrectness, StepEfficiency)
- docs: add Doubleword as an OpenAI-compatible provider
- Add model response lifecycle events for UI streams
- Support default _meta parameters in MCPServer
- Add `request_meta` to `MCPServer`
- Add `pydantic_ai.managed.logfire.Managed` capability
- fix(evals): constrain judge_output reason to be concise and retry-safe
- Function calling for the Google Vertex AI
- Docs
- Python not yet supported