Most AI automation projects don't fail because the technology isn't good enough. They fail because the brief was vague. If you walk into a conversation with an agency and say "we want to automate some of our admin work," you'll get a generic solution that half-fits your business — and you'll spend weeks going back and forth before anything useful gets built. The good news is that writing a strong brief doesn't require any technical knowledge. It just requires you to describe your business clearly and honestly. Here's exactly how to do it.
Start With the Problem, Not the Tool
The most common mistake people make in a brief is leading with the solution they think they need. "We want a chatbot" or "we want to automate our emails" sounds helpful, but it boxes the agency in before they've had a chance to think creatively about your problem.
Instead, start by describing the pain point in plain terms. What is actually going wrong in your business right now? What takes too long, falls through the cracks, or relies too heavily on one person's memory?
A useful framework is to describe the problem in three parts: what triggers it, what currently happens, and what the ideal outcome would look like. For example: "When a new enquiry comes in through our website (trigger), one of our team manually checks our CRM, sends a personalised reply, and adds the contact to our email list — which takes about 25 minutes per enquiry and often doesn't happen until the next day (current state). Ideally, the contact would get a relevant response within five minutes and be automatically tagged in our CRM without anyone on the team having to touch it (ideal outcome)."
That's not a technical specification. It's a business description. But it gives an agency everything they need to start designing the right solution.
Map the Process You Want Automated — Step by Step
Once you've defined the problem, walk through the current process in as much detail as you can. This is where most briefs go thin, and it's where the real value is hidden.
Write down every step a human currently takes to complete the task. Include the tools involved at each step. Don't skip the small things — the copy-paste from one system to another, the Slack message to a colleague asking for a file, the spreadsheet someone maintains by hand. These friction points are exactly what automation is designed to eliminate.
A real example: a mid-sized legal consultancy came to an agency with a recurring problem. Every time a new client was onboarded, a paralegal spent roughly 3 hours gathering documents, creating a folder structure, sending welcome emails, scheduling an intro call, and updating the CRM. The task wasn't difficult — it was just tedious, repetitive, and prone to things being forgotten. When they mapped the process step by step, they identified 11 discrete actions that happened every single time. The agency built an AI workflow that automated 9 of them, reducing onboarding admin from 3 hours to under 20 minutes per client. At 40 new clients a year, that's roughly 107 hours of paralegal time saved — the equivalent of more than two and a half working weeks.
That kind of result only becomes possible when the agency can see the full picture upfront.
Tell the Agency What Success Looks Like — With Numbers
Vague goals produce vague results. When you write your brief, define what success looks like in measurable terms. This helps the agency prioritise features, make sensible trade-offs, and build something that actually delivers return on investment.
Think about the numbers that matter to you. How many times does this process happen per week or month? How long does it currently take? What does that cost you in staff time? Is there a revenue impact — for example, slow follow-up with leads that results in lost sales?
If you're not sure how to quantify it, here's a simple calculation: take the number of times the task happens per month, multiply by the average time it takes, and multiply by your rough hourly staff cost. Even conservative estimates often reveal that a single manual process is costing a small business £15,000–£30,000 a year in staff time alone — which puts even a £5,000–£8,000 automation investment in a very different light.
Also be specific about what good looks like from a user experience perspective. Should customers receive a response in under two minutes? Should the CRM be updated before the end of the working day? Should the error rate on data entry drop to zero? These benchmarks give the agency a target to build towards and make it much easier to test and sign off the finished solution.
Share Your Constraints Honestly
A brief that only describes what you want, without mentioning what you can't or won't change, leads to solutions that look great in a demo and fall apart in reality.
Be upfront about your constraints. Which tools are non-negotiable? If your whole team uses a specific CRM and switching isn't an option, say so. What's your budget range — even a rough one? Knowing whether they're working with £3,000 or £30,000 makes a significant difference to what an agency will design. What's your timeline? If you need something running before a busy season, that changes the scope of what's feasible.
Also mention anything about your team that's relevant. Is there resistance to changing how things are done? Is there one person who manages a particular system and would need to approve changes? Are there compliance or data privacy requirements — especially relevant if you're in healthcare, legal, or financial services — that any solution must respect?
A good agency will ask you these questions anyway. But including them upfront in your brief signals that you've thought seriously about implementation, not just concept. It builds trust and dramatically speeds up the early stages of a project.
Conclusion
A strong brief is the single biggest thing you can do to get better results from an AI automation agency — faster and at lower cost. You don't need to know anything about how the technology works. You just need to describe your business pain clearly, map out the current process honestly, define what success looks like with real numbers, and flag your constraints upfront. The more specific you are, the less time gets spent on back-and-forth clarification, and the sooner you start seeing the time savings and efficiency gains you're looking for. Treat the brief as a thinking exercise for your own business, and you'll find that the solutions an agency comes back with are sharper, more practical, and much more likely to stick.