Turn a rough idea into a useful first build.
A practical brief gives your project direction without deciding every detail.
Start with the person and the task
A useful first brief describes who will use the app and what they need to finish. ‘A dashboard’ describes a shape. ‘A project tracker that helps a freelance designer see what is due this week’ describes a job.
Add the information that person needs, the action they should take, and what success looks like. For a project tracker, that might be a project name, a due date, a status, and a way to mark the task complete.
Make the first version deliberately small
Choose one complete journey: create a project, add a task, update it, and find it again. A complete small workflow is easier to evaluate than six disconnected pages.
BigBag’s generation flow can ask focused setup questions and show a build plan. Use that moment to check whether the proposed pages and data fit the task. If the plan includes something you do not need yet, say so before the build starts.
Use a reference to explain a decision
Screenshots and Figma references can help communicate spacing, hierarchy, and visual direction. Explain what you want to carry over: a clear navigation pattern, a spacious project list, or the way a detail page groups information.
A reference is most useful when paired with a reason. ‘Keep the status easy to scan’ gives the builder more direction than ‘make it look modern’. Use assets you have permission to use.
Review by doing the task
When the preview is ready, walk through the journey you described. Create a record. Change it. Refresh the page. Visit a detail page directly. Try the same steps at a narrow screen width.
Keep follow-up requests specific. Name the screen, explain the problem, and describe the result you want. ‘On the task list, show overdue tasks before upcoming ones’ is a concrete change that can be checked.
Keep the next iteration connected
The project workspace keeps the conversation near the preview, source editor, database tools, and version history. Use those views to inspect what changed instead of relying on the assistant’s summary alone.
You can build from an unfinished idea. You still need to decide whether the result helps the person you had in mind. That is the most useful test of a first version.