v1.84.1

pydantic/pydantic-aiv1.84.1Apr 18, 2026by DouweM

AI Summary

A maintenance release that addresses bugs related to tool hook execution and argument validation. It ensures internal tools are handled correctly and that hooks receive properly validated arguments.

Key Highlights

Skip tool hooks for internal output tools
Always pass `dict`-shaped validated args to hooks for single-`BaseModel` tools

Full Release Notes

<!-- Release notes generated using configuration in .github/release.yml at main -->

## What's Changed
### 🐛 Bug Fixes
* Skip tool hooks for internal output tools by @DouweM in https://github.com/pydantic/pydantic-ai/pull/5128
* Always pass `dict`-shaped validated args to hooks for single-`BaseModel` tools by @DouweM in https://github.com/pydantic/pydantic-ai/pull/5137


**Full Changelog**: https://github.com/pydantic/pydantic-ai/compare/v1.84.0...v1.84.1