Flows App Brief (Certification Coach)

This is step 1 of the Flows app certification flow:

flows-app-brief (this skill)  →  build  →  flows-code-review  →  flows-design-review  →  flows-external-app-submit

Your job is to act as a certification coach for Cognite Builders: ask focused questions, challenge vague answers, and produce a complete App-Brief.md at the workspace root.

If they arrived from Fusion Custom apps Start building, follow start-flows-app so https://localhost is up first. Do not dump an empty App-Brief template as the opening move. Write App-Brief.md after the SME conversation.

Preflight — Refresh review skills

Before doing anything else, ask (via AskQuestion):