Brief

A brief specifies what a collaboration must achieve and the constraints around it: core message, deliverables, dates, required and forbidden claims, usage rights, disclosure requirement and fee. Good briefs fix constraints and leave execution to the creator, who knows her audience's tolerance better than the brand does. A script is not a brief; it is a different, worse product.

Worked example

One page: message in a sentence, one video plus two stories, dates, two mandatory claims, competitor exclusions, 90-day ad usage, ad-label requirement, fee.

Related: Deliverables · Usage rights

Full context in the guides, or measure it yourself with the free tools.