A brief is not a list of deliverables. It is an agreement about the problem: the audience, the context, the thing that needs to change, and the evidence that will help us recognise progress.
Specificity creates freedom. When the objective and constraints are clear, the creative response can explore different routes without losing its purpose.
The final brief should be short enough to use and rich enough to challenge assumptions. It is a working document, not an archive. Focus the conversation on what matters and keep the audience in view.