Anthropic Prompt Driver is Truncating Output - possibly due to the default of 1000 on max_tokens

Agents using the `anthropic_prompt_driver` are producing truncated output. This seems to be addressed by passing the `max_tokens` kwarg to the agent with large value (max is 8192). 

Would it be possible (or a good idea) to add info level logging to report if max tokens is hit?

AND/OR

to increase the default value for max_tokens significantly? 



