AI Video Effect · Short form
B-roll and Stacked Text
A tight, punchy edit. Pauses and filler are cut out, B-roll covers every few seconds, and the key phrase of each sentence appears as a two-line stack: a bold sans line over a serif italic accent line. You give Claude Code your video; it plans the edit, renders it on your computer and exports a finished 1080×1920 MP4.
# B-roll and Stacked Text — video style
A tight, punchy edit. Pauses and filler are cut out, B-roll covers every few seconds, and the key phrase of each sentence appears as a two-line stack: a bold sans line over a serif italic accent line.Every paid plan opens all 18 styles.
How it works.
- 01
Add your video
Put
my_video.mp4in a folder, with the extras next to it, and open that folder in Claude Code. - 02
Edit my_video.mp4 in the B-roll and Stacked Text style. B-roll is in broll/.Type the prompt
Paste it into Claude Code and press Enter. Claude writes a short plan first.
- 03
Get your edit
Claude edits it, checks it frame by frame and saves the finished MP4 in the Export folder.
First time? Unzip the skill into .claude/skills/ and type “Set up the B-roll and Stacked Text skill.” once.
Questions
What do I need to use B-roll and Stacked Text?
Claude Code (the desktop app's Code tab or the terminal), a Mac or Linux computer with Python 3.9+ and ffmpeg, and about 3 GB of free disk space for the speech and vision models, which download once. Then: your talking-head video. Vertical 9:16 is ideal; a horizontal recording also works.
What does B-roll and Stacked Text export?
1080×1920 (9:16), 30 fps, H.264 + AAC, ready for Reels, TikTok and Shorts.
Can I change the colours and fonts?
Yes. They live in the skill's brand settings. Tell Claude your colours and font, for example "Use my brand: #0E1A2B background, #F4EFE6 text, Gilroy font", and it updates them. The default fonts are free (SIL Open Font License).
Is my video uploaded anywhere?
No. Everything runs on your computer, and your video and voice are never uploaded. The only downloads happen during setup: Python packages, two MediaPipe models from Google, the Whisper speech model and the free fonts.
Can I use a horizontal recording?
Yes. Vertical 9:16 is ideal, but a horizontal recording also works: the skill has a fallback layout for it.
What happens when I correct something?
Claude adds your correction to the skill as a rule, so the same thing does not happen in your next edit.
What should I prepare?
Your talking-head video. Vertical 9:16 is ideal; a horizontal recording also works. Optional: screenshots, photos, logos and B-roll that support what you say. B-roll clips or photos for the things you mention. Recommended; Claude asks for them if none are given.
What does B-roll and Stacked Text not do?
It does not shoot or source B-roll: the clips and photos come from you. It runs on macOS or Linux with Python 3.9+ and ffmpeg, not on Windows. Sound effects are not included. Add your own licensed samples, or it uses clean built-in sounds.
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