What is a client brief?
A client brief is the starting instruction for a piece of work. It tells the agency what the business needs, who the work is for, what it has to say, what has to be delivered, by when, and roughly what there is to spend. It might be a formal document from a brand's marketing team, a one-page email or a conversation captured in notes. Whatever form it takes, it is the shared reference both sides return to when decisions get hard.
Agencies often turn a client brief into a creative brief: a shorter, sharper version written for the creative team, built around a single insight and a single thing the work has to do. The client brief is the what. The creative brief is the angle.
Why it matters
Why a client brief matters
Most problems on a project can be traced back to the brief. Unclear objectives produce work that answers the wrong question. Missing constraints (a mandatory logo lockup, a legal line, a retail date) produce late changes that cost money and goodwill. A good brief does the opposite: it saves a round of concepts, keeps the budget honest and gives everyone the same definition of done.
It is also a signal. A thoughtful brief tells an agency the client knows what they want and has the internal agreement to get it, which is often the single biggest predictor of whether a project goes well.
In practice
How a client brief works in practice
- 01
The brief is written by the brand's marketing lead or brand manager, ideally with sign-off from whoever will approve the final work, so the goalposts do not move later. It covers the business objective, the audience, the key message, the mandatories, the deliverables and formats, the timeline and a budget range. It helps to include what has been tried before, what worked, and what the brand does not want to see again.
- 02
The agency then responds. That usually means a briefing meeting to ask questions, a debrief that plays the brief back in the agency's own words (often surfacing gaps nobody had noticed), and then a proposal or a pitch. The brief stays alive through the whole project: when a creative choice is contested, the brief is the tiebreaker.
At RIOT
Client briefs at RIOT
A brief is how almost every RIOT project starts, and it can be as short as a paragraph. We do not work from a rate card. We scope first: we read the brief, ask the questions it raises, and come back with a plan and a number within a couple of business days. Because RIOT is a creative agency and production studio, the people who read the brief are the people who will shoot and edit it, so nothing is lost in a hand-off between the strategy and the making.
Watch out
What people get wrong about client briefs
Leaving out the budget. An agency cannot design the right idea without knowing whether it is a one-day shoot or a three-city production, and a brief with no budget range usually produces ideas that cannot be afforded. The second mistake is listing deliverables without an objective. The third is writing the brief by committee, so it asks one film to do six jobs at once and does none of them well.
