Do not ask AI to invent the audience

Bring customer interview notes, review excerpts, support questions or search evidence. Label the source and date. A persona generated from a product description is still a guess.

Keep the offer boundary visible

Campaign copy often fails when an early idea turns into an unapproved promise. Put approved claims and forbidden claims in the source pack; treat missing proof as a stop, not an invitation to improvise.

Use the alternatives as experiment inputs. Choose one difference, define the metric and keep the original version available for comparison.