PydanticAIIntegration fails with pydantic-ai-slim 1.63.0: ToolManager has no attribute '_call_tool'

[valentinsulzer]

PydanticAIIntegration fails with pydantic-ai-slim 1.63.0: ToolManager has no attribute '_call_tool'

Description

When using pydantic-ai-slim[openai]==1.63.0 with Sentry's auto-enabled Pydantic AI integration, the SDK fails during import/startup with:

AttributeError: type object 'ToolManager' has no attribute '_call_tool'

The integration patches ToolManager._call_tool in sentry_sdk/integrations/pydantic_ai/patches/tools.py (line 43: original_call_tool = ToolManager._call_tool), but in pydantic-ai-slim 1.63.0 the ToolManager class no longer exposes this attribute (or it was moved/renamed in the slim package).

Environment

• sentry-sdk: 2.53.0 (with [fastapi])
• pydantic-ai-slim: 1.63.0 with [openai] extra
• Python: 3.11

Expected behavior

The Pydantic AI integration should either:

1. Detect that ToolManager._call_tool is not present and skip the tool-execution patch (e.g. with getattr(ToolManager, '_call_tool', None)), or
2. Document compatibility with pydantic-ai-slim and supported versions.

Actual behavior

Any code path that triggers loading of the Pydantic AI integration (e.g. importing an app that uses pydantic-ai) raises AttributeError and prevents startup. For example, pytest collection fails when collecting a test module that does from src.main import app.

Workaround

• Pin pydantic-ai-slim to 1.62.x (e.g. ==1.62.0), with which the integration works, or
• Disable the integration: sentry_sdk.init(..., disabled_integrations=[PydanticAIIntegration])

Related

• PR fix(pydantic-ai): Do not fail on new ToolManager._call_tool() parameters #5084 (fix for new ToolManager._call_tool() parameters in pydantic-ai 1.12.0) fixed signature compatibility but not the case where the attribute is missing entirely.

Reproduction

1. pip install "sentry-sdk[fastapi]==2.53.0" "pydantic-ai-slim[openai]==1.63.0"
2. In application code, call sentry_sdk.init(dsn="...", ...) (integration is auto-enabled when pydantic_ai is installed).
3. Import a module that uses pydantic_ai (e.g. FastAPI app with agent routes).
4. Observe AttributeError: type object 'ToolManager' has no attribute '_call_tool' during the patch in _patch_tool_execution().

[linear]

PY-2092

[sentrivana]

Thanks for the report @valentinsulzer, we'll look into this.