You do not need to choose a framework or write an API specification to discuss custom software. Start with the work your team or customers need to complete.
Describe one journey
Name the user, what starts the task, the information available and the result that means it is finished. Explain the current tools and where people re-enter data, wait or lose context.
Include a difficult case and any important access or device constraints. Approximate user numbers and record volumes help, provided estimates are labeled honestly.
Choose a useful first outcome
A bounded first release might support one request type or customer self-service task. Identify the person who can approve business rules and the people who will review the result.
Keep passwords and private records out of the initial inquiry. Protected samples and project access can be arranged through the approved route later.
Faith Forge Labs can use these details to discuss discovery, a prototype or an implementation scope. The goal is a concrete result your business can inspect, with clear dependencies and an operating plan, rather than a broad promise based on a feature list alone.
Also describe any date driven by a real business dependency, such as an existing contract ending. That helps separate an essential launch task from features that can follow later.