pydantic-ai
https://github.com/pydantic/pydantic-ai
Python
GenAI Agent Framework, the Pydantic way
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- Issues
- Fix `deps` deserialization in non-streaming Temporal model-request activity
- Fix `SpanQuery` `has_attributes` matching for JSON-serialized dict and list values
- fix: preformat OTel span names in GraphBuilder API for non-Logfire backends
- Preserve `run_id`, `conversation_id`, and `metadata` when merging consecutive `ModelRequest`s
- Document that MCP config files and graph persistence files are trusted input
- [roundtrip-sweep] AG-UI adapter: ToolReturnPart.outcome silently dropped on round-trip (failed/denied load as success)
- Anthropic mapper re-renders unsigned/foreign `ThinkingPart`s as literal `<thinking>` text in the prompt — model mimics it and leaks reasoning into user-visible answers
- `TemporalMCPServer.get_tools` tool-definition cache breaks workflow replay determinism (TMPRL1100)
- Preserve `tool_kind` in Vercel AI and AG-UI message round-trips
- GraphBuilder API does not preformat OTel span names (`run node {node_id}` / `run graph {graph.name}` left as literal templates)
- Docs
- Python not yet supported