Please help me understand why my prompt is not working properly

Thank you very much!

In terms of defining certain entities like decisions or updates, I initially included detailed definitions within my prompt. However, I’ve observed that adding more information to the prompt correlates with a decrease in the quality of the output.

For instance, when using a straightforward prompt like ‘Extract risks, decisions, updates from the email below,’ the resulting output tends to be better (though not perfect) compared to when I provide a more intricate prompt.