Get this effect
Switch to Code in your Claude Desktop App
Install the skill (once)
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Install the Recharm video effects skill: download https://recharm-growth-staging.s3.us-east-2.amazonaws.com/website/downloads/recharm-video-effects.zip and unzip it into ~/.claude/skillsAsk for the effect
Add a hue cycling to input.mp4 Seconds for one full trip around the color wheel: 2.0 Color strength while cycling: 1.4
Several videos, several effects, one ask
Put your clips in the folder, mention them with @, and ask for everything at once. Claude runs one tested script after another on each clip, then joins them.
Add a hue cycling to @clip1.mp4, put a sale badge on @clip2.mp4, give @clip3.mp4 a VHS look, then join all three with crossfades.
Settings you can change
Ask Claude to change any of these, or edit them at the top of the command.
| Setting | Default | What it does |
|---|---|---|
LAP | 2.0 | Seconds for one full trip around the color wheel. Smaller cycles faster. |
SATURATION | 1.4 | Color strength while cycling. 1 leaves it unchanged. |
Without the skill
Don’t want to install the skill? Paste this prompt into Claude Code and Claude writes the command itself.
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In input.mp4, make the colors cycle around the color wheel for the whole clip: rotate the hue by 360 degrees every 2 seconds (hue angle = 180 x time in seconds, starting at 0 so the first frame keeps its original colors), and raise the saturation to 1.4x so the shifted colors stay vivid. Brightness stays the same. Keep the size, 30fps, the 6-second length and the audio. Use ffmpeg's hue filter (no text is drawn; if you ever add any, draw it with Pillow, not ffmpeg's drawtext) and save it as output.mp4.Run it without Claude
This is the exact command we tested. Save it as hue-cycling.sh and run:
sh hue-cycling.sh input.mp4 output.mp4Show the command
#!/bin/sh
# Hue cycling: every color in the clip turns around the color wheel, one full lap every 2 seconds.
# Usage: sh hue-cycling.sh input.mp4 output.mp4
set -e
IN="$1"; OUT="$2"
LAP=2.0 # seconds for one full trip around the color wheel
SATURATION=1.4 # color strength while cycling (1 = unchanged), so the shifted colors stay vivid
ffmpeg -y -i "$IN" -vf "hue=h='360*t/$LAP':s=$SATURATION,fps=30" \
-c:v libx264 -crf 18 -pix_fmt yuv420p -c:a copy "$OUT"
