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bugSomething isn't workingSomething isn't working
Description
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- I have updated to the lastest minor and patch version of Strands
- I have checked the documentation and this is not expected behavior
- I have searched ./issues and there are no duplicates of my issue
Strands Version
1.7.0
Tools Package Version
0.2.6
Tools used
- Calculator
Python Version
3.13
Operating System
macOS 15.6.1
Installation Method
pip
Steps to Reproduce
- Install strands with uv add strands-agents strands-agents-tools
- Set up AWS credentials for us-west-2.
- Run attached agent example with
uv run error.py
. Agent calls custom tool correctly, without error - Replace custom tool with built-in
calculator
tool on line 20 - Run agent again. Agent fails execution with
strands.types.exceptions.EventLoopException: An error occurred (ValidationException) when calling the ConverseStream operation: This model doesn't support the reasoningContent.reasoningText.signature field. Remove reasoningContent.reasoningText.signature and try again.
Expected Behavior
Agent returns proper even response with current_tool_use
objects.
Actual Behavior
Agent returns error
Additional Context
No response
Possible Solution
No response
Related Issues
No response
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bugSomething isn't workingSomething isn't working