Tool Calls errors shouldn't blow up the workflow. Or should they?

[jmoseley]

When a tool call throws an error, the entire workflow fails. On one hand, we can catch these errors, serialize them, and pass them back to the model. However, this might hide unexpected errors from the developer, making it harder for them to realize they are happening.

The other option is to just improve our examples to encourage tool implementations to use a try...catch so that we make it clear that it is up to the developer to gracefully handle expected errors.