Write an AI Brief Before You Write a Prompt
Clear assignments give AI a better starting point and give people a better way to judge the result.
A prompt is an assignment. If the assignment is vague, the person reviewing the answer inherits the work of discovering what the assignment should have been. That is why a business team benefits from writing a brief before experimenting with clever instructions. A useful brief explains what someone needs to accomplish, what information is available, and what a satisfactory result would look like. It makes the purpose visible before the tool begins producing text.
Begin with the decision or action the output will support. “Write about our service” leaves too much open. “Draft a one-page explanation that helps a purchasing manager decide whether to request a technical discussion” establishes a reader and a next step. The second assignment still needs facts, but it gives those facts a job. Ask what the reader should understand, what uncertainty needs resolving, and what the output must not imply.
Next, provide a small, deliberate source packet. Include the approved service description, relevant limitations, and the customer questions that actually matter. Label which material is authoritative and which material is background. If two documents disagree, resolve the disagreement or instruct the tool to flag it. Do not ask a writing system to quietly choose the company's position from conflicting drafts. Restrict sensitive information according to the tools and practices your organization has approved.
Specify the shape of the deliverable in terms the reviewer can recognize. A short introduction, three clearly explained points, and a closing invitation is more actionable than “make it engaging.” State a word range when length matters. Name the required terminology and the expressions to avoid. Provide one example of the desired tone if you have an appropriate example. A sample helps establish style, but it should not become a source of invented facts or copied claims.
Put boundaries in the brief. If pricing is not supplied, the output should not invent a price. If a claim needs evidence, the answer should identify the gap rather than disguise it. If a customer commitment requires approval, the draft should leave that commitment open. These instructions do not guarantee compliance. They make the intended limits explicit and create a checklist for the human review that follows. The brief and the review work together.
Then define acceptance criteria before evaluating the answer. Can the intended reader understand the offering without unexplained terms? Does every factual statement match an approved source? Is the requested action clear? Are limitations represented fairly? A reviewer can answer those questions directly. “I don't like it” may still be a valid reaction, but specific criteria help separate a factual defect, a structural problem, and a simple preference about wording.
For example, a brief for a service comparison might require a table with three verified differences, a short explanation of who each option suits, and a list of unanswered questions. The instructions can prohibit rankings when the sources do not support them. This gives the reviewer something concrete to inspect: the differences, the reasoning, and the visible gaps. It also prevents the assignment from drifting into persuasive claims the business never intended to make.
Run the first draft as a test of the assignment as well as the tool. If the answer misses the audience, check whether the brief described the audience clearly. If it supplies generic benefits, check whether you provided concrete facts. Revise the brief where the instruction failed, and revise the output where judgment is needed. Over time, keep the briefs that consistently produce useful starting points. The reusable asset is a well-understood assignment, with its sources and standards attached.
