The Shot Extension Prompt

Extend this shot beyond its generated length.

Current clip: [DESCRIBE — content, duration, how it ends]
Target duration: [SECONDS]
Platform extension features: [DESCRIBE, OR "none"]

Produce:
1. Extension options: platform extend feature, generating from the
   last frame, or a separate matched shot
2. For last-frame extension: what to check about the final frame
   before using it
3. The prompt for the continuation
4. How to keep motion continuous across the join
5. Where to place the join so it is invisible
6. What will drift and how to limit it

Then:
7. Whether extension is the right answer, or whether this should be
   a cut to a new shot
8. How to design the edit so the join falls at a moment of motion,
   where it will not read

A cut is often better than an extension. Extensions accumulate
drift; cuts do not.