pydantic-ai
https://github.com/pydantic/pydantic-ai
Python
GenAI Agent Framework, the Pydantic way
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- Issues
- Populate `span_tree` and metrics for `run_on_errors` evaluators when a task raises
- fix(vercel-ai): require a valid approval on approval-responded parts
- Make `wrap_*` hooks enclose complete stage lifecycles
- Surface an invalid AG-UI resume payload as a `RunError` instead of denying silently
- Add `VercelModel` surfacing the Vercel AI Gateway's reported `usage.cost` in `provider_details`
- `OpenAIChatModel` + `VercelProvider` drops the Vercel AI Gateway's reported `usage.cost`
- Agent `max_concurrency` hangs workflows under `TemporalDurability`
- Add `cancel_and_resume` example: cancel and resume a streaming run
- Deliver `ctx.enqueue` content from a tool body into the same `ModelRequest` as its `ToolReturnPart`
- Pass Temporal `deps` by reference (design spike)
- Docs
- Python not yet supported