A good vibe coding brief explains who uses the tool, what they want to accomplish and how to recognise a correct result. A few clear pages can be enough for a small prototype. The key is to make the rules explicit before requesting an interface.
Start with a working situation
Describe a person in a specific situation. For example, a communications officer receives a request for an internal announcement and needs the information required to prepare it.
State what they have at the start and what they expect at the end. Here, they receive a vague idea and want a sheet containing an objective, audience, message and deadline. The need becomes observable.
Write the journey in order
Open the form, enter the information, check the summary, correct an answer and print: that sequence is your first version. For every step, note the available choices and expected behaviour.
Explain what happens when going back. Should the answers remain? Can someone prepare a sheet without a deadline? Can they restart without keeping previous entries? These details prevent late corrections.
Separate rules from preferences
A rule determines behaviour: an objective is required, a quantity must be positive or a total follows a given formula. A preference concerns presentation: colour, visual order or an illustration.
Provide at least one example with its expected result. Describing a calculation only in words can leave ambiguity. Working it out independently gives you a reference for checking the prototype.
A brief you can adapt
Create a prototype form for preparing an internal communications request. The user enters the objective, audience, main message and deadline. The first three fields are required. A printable sheet repeats the answers without rewriting them. Users can return to the form without losing their entries. Use fictional examples only. The first version has no accounts, sending or answer storage.
Add your criteria: the sheet should preserve accented characters, remain readable on a phone and identify a missing field precisely. Each point can be tested without interpreting a general promise.
Have someone review it before generation
Ask a colleague to describe the journey from the brief. If they imagine a different application, clarify it now. Keep ideas for the next version separate from the requirements for this trial.
After testing, update the document with the actual decisions. A useful brief describes the chosen version and its limits. It becomes a basis for discussion with the team or the person who takes over development.
Frequently asked questions
Does the brief need to be highly technical?
For a small prototype, begin with the business task and verifiable outcomes. Technical choices can be developed with the appropriate specialist as the project requires.
How many features should the first version include?
Enough to complete one task from beginning to end. Keep other requests in a separate list for later.
Explore further
Do you have a business task to explore with AI? Discuss your needs with eloRezo.
Content and sources checked on 30 October 2026.