Start with the moments that tell the story
Bring your background clip and the exact countdown duration or event time. Pick the takes that make the subject clear, including a strong opening and a complete ending. These choices give Shorty a useful starting point for the edit.
Give Shorty the creative direction
Show a clear countdown with consistent timing and a deliberate ending.
Try a 20-second 9:16 edit as a starting point. Include the exact title or closing message you want on screen. Add a reference when you want to show the pace, captions or mood.
Try this editing prompt
Create a 20-second 9:16 video from my your background clip and the exact countdown duration or event time. Show a clear countdown with consistent timing and a deliberate ending. Use my supplied wording for titles. Verify the displayed numbers and distinguish a rendered countdown from a live clock.
Make the next version more specific
Verify the displayed numbers and distinguish a rendered countdown from a live clock.
Play the first cut and pick the change that would help the story most. Name the moment, describe the result you want and tell Shorty what to keep. A note such as “hold the final product shot longer” gives the revision a clear direction.