[BUG] Respect role from BidiTextInputEvent parameter instead of hardcoding 'user' role #2089
Description
Checks
- 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
1.34.1
Python Version
3.13
Operating System
n/a
Installation Method
pip
Steps to Reproduce
The bidi agent loop hardcodes "role": "user" when appending messages from a BidiTextInputEvent, ignoring the event's role property entirely. This means callers who construct a BidiTextInputEvent with role="assistant" (e.g., for injecting assistant context into the conversation history) have that role silently overwritten. The role parameter on BidiTextInputEvent exists specifically to support this — it should be used.
Expected Behavior
The event role attribute should be respected in the bidi agent loop.
Actual Behavior
The hard coded value overrides the role.
Additional Context
No response
Possible Solution
1 line fix -
Related Issues
No response