An AI agent feature demo video should answer one practical user question with one checked on-screen sequence. A feature is not a collection of screens that happen to share a menu. It is a visible capability with a recognizable starting point, a meaningful action, and a result a viewer can inspect. The demo helps someone understand what changes for the user when they use that capability. It does not prove every route works, certify the product, or explain the entire history of an agent built app.
That boundary matters when an agent has helped assemble the interface. A feature may look complete because the surrounding navigation, settings, and empty states already exist. The useful question is smaller. Can a person see the feature do the job the nearby copy says it does? A focused recording lets a human check that question in a real browser session. If the browser evidence is weak, the answer is to adjust the selected scope or product claim, not to use more confident narration.
GogoScreen takes a reachable web app URL and a one line hint about the flow to show. It records the real app, not a mockup, then prepares an edited MP4 with voiceover and captions. A candidate can fail or need a retry. A finished file is therefore a reviewable record of one session, not a guarantee that the feature behaves the same way for every person or in every state.
