Start with the moments that tell the story
Bring a closing shot or two adjacent clips with room for a transition. 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
Use a controlled fade at the requested boundary and leave the final message readable.
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 a closing shot or two adjacent clips with room for a transition. Use a controlled fade at the requested boundary and leave the final message readable. Use my supplied wording for titles. Check that the fade does not begin before the speaker or action has finished.
Make the next version more specific
Check that the fade does not begin before the speaker or action has finished.
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.