PromptVaultWhy does the green-screen edge keep crawling?
For editors isolating whether a bad key comes from capture, compression, spill, or settings.
Works with
- Grok
The prompt134 words · 2 blanks
What you fill in
- Keying symptom
[visible_artifact]ExampleCrawling bright outline - Source footage
[footage_type]ExampleCompressed 4:2:0 recording
How to use it
- 1Open it in PromptVault. Find it in Video, or search for “Why does the green-screen edge keep crawling?”.
- 2Fill in the 2 blanks. keying symptom and source footage — the only things the prompt cannot know.
- 3Copy and paste it into Grok. That is the tool it is written for.
About this prompt
“Why does the green-screen edge keep crawling?” is a intermediate video prompt. For editors isolating whether a bad key comes from capture, compression, spill, or settings. It is 134 words long and written to get a usable answer on the first message, in Grok or any other chat assistant. Good for: troubleshooting, editing, deep dive and checklist. Like every prompt in PromptVault, it was written and edited in-house, and it works offline once the app is installed.
More video prompts
All 55 in Video
Screen recordings that feel out of syncFor tutorial editors diagnosing narration-picture mismatch before recording the voiceover again.- A seamless orbit around one productA loop-safe product orbit checklist for creators preparing a single generative shot.
- Can you hear where narration should overlap?For beginner video-essay editors learning J-cuts and L-cuts through practice.
- Documentary interview portraits with ethical boundariesFor filmmakers generating contextual portrait footage without fabricating documentary evidence.
- Event recap footage reaches the edit on timeFor small video teams sequencing ingest, selects, approvals and delivery after an event.
- Localized captions that remain readable at speedFor video teams converting source captions into timed copy that respects reading speed and meaning.