This PR makes it so we include some textual content in the user messages
that as used to send up tool results.
I observed that when sending up the tool results with no text, it would
lead the model to start replying with no text, which would then result
in an error when attaching later tool results.
I think there's a deeper issue at play here, but for now we just include
some text to keep the model on track.
Release Notes:
- N/A
Marshall Bowers
71866d6314