No error handling around empty messages

[spocksbrain]

I have also run across this error a number of times.

Traceback (most recent call last):
File "C:\Users\Spocksbrain\Documents\Code_Projects\maestro\maestro.py", line 246, in
sub_task_result = haiku_sub_agent(sub_task_prompt, search_query, haiku_tasks, use_search)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\Spocksbrain\Documents\Code_Projects\maestro\maestro.py", line 117, in haiku_sub_agent
haiku_response = client.messages.create(
^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\Spocksbrain\Documents\Code_Projects\maestro\maestor01\Lib\site-packages\anthropic_utils_utils.py", line 277, in wrapper
return func(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\Spocksbrain\Documents\Code_Projects\maestro\maestor01\Lib\site-packages\anthropic\resources\messages.py", line 681, in create
return self._post(
^^^^^^^^^^^
File "C:\Users\Spocksbrain\Documents\Code_Projects\maestro\maestor01\Lib\site-packages\anthropic_base_client.py", line 1239, in post
return cast(ResponseT, self.request(cast_to, opts, stream=stream, stream_cls=stream_cls))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\Spocksbrain\Documents\Code_Projects\maestro\maestor01\Lib\site-packages\anthropic_base_client.py", line 921, in request
return self._request(
^^^^^^^^^^^^^^
File "C:\Users\Spocksbrain\Documents\Code_Projects\maestro\maestor01\Lib\site-packages\anthropic_base_client.py", line 1019, in _request
raise self._make_status_error_from_response(err.response) from None
anthropic.BadRequestError: Error code: 400 - {'type': 'error', 'error': {'type': 'invalid_request_error', 'message': 'messages: text content blocks must be non-empty'}}
PS C:\Users\Spocksbrain\Documents\Code_Projects\maestro>

[awm19delta]

I'm having this same issue repeatedly, trying to tweak the code but my skills are limited. It happens if there is no continuation prompt and/or when the orchestrator goes back to the sub-agent (I think). I can't seem to get past it.