pydantic-ai
https://github.com/pydantic/pydantic-ai
Python
GenAI Agent Framework, the Pydantic way
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- Issues
- Add Nimble Search as a common tool
- Use hybrid storage for flexible usage serialization
- fix(usage): preserve zero-valued OTel details
- Expose OpenAI Responses `phase` on streamed `PartStartEvent`
- Verify Azure Responses API accepts default `reasoning.context=all_turns` for `gpt-5.4`/`gpt-5.5`/`gpt-5.6` (from #6673)
- Related eval: REFUTE scientific critique + calibration for agent honesty
- fix(_parts_manager): fix part lookup and update in `apply_event` for replayed stream deltas
- Fix `ModelResponsePartsManager.apply_event` indexing for incomplete deltas
- Add MCP Toplist rank badge
- `search_tools` is pinned to `max_retries=1` with no way to change it — one malformed `queries` arg kills the whole run
- Docs
- Python not yet supported