capabilities

Compose Creator Layer

Name: Compose Creator Layer
Author: Athina AI

Composite a generated creator track into a product layer, per beat — in the creator's zone on split beats (either side of a seam), full frame on creator beats, hidden on product beats — with the creator's voice as the audio (loudness -14 LUFS) and an optional ducked music bed, or a music-only or silent master for voiceless formats. Free, local ffmpeg. Pairs with footage-cutlist (the layer) and create-creator-takes-h3 (the creator). Use for split-screen, screen-insert and any creator-over-product format.

by Athina AI

Run in Gooseworks View skill in Github

Install

Terminal

npx gooseworks install --all

# then, in Claude Code, Cursor, or Codex:
/gooseworks use the compose-creator-layer skill

About This Skill

compose-creator-layer

Run

python compose.py --layer layer.mp4 --beats cutlist.aligned.json --creator creator.mp4 \
    --out reel.mp4 [--music bed.mp3 --music-db -20] [--head 0.30]

--layer: footage-cutlist cut.py output rendered from the same cut list as --beats (re-render it after align_beats.py). --draft layers are refused.
--creator: create-creator-takes-h3 join_takes.py output, reel time from 0.
--audio creator|music|none: the voice (+ ducked --music), the --music bed alone (voiceless paid ads), or a silent master (organic posts: the track is added in-platform at upload, which is licensed for organic use only).
The creator track may be shorter than the reel (a 2.3s reaction hook): it only shows during its own creator beats.
--head: where the crop sits vertically when the creator is scaled to cover an area (0 keeps the top, 0.5 centres). 0.30 keeps the head in the upper third.

Rules

Crop from the take's real size, never a hard-coded height. A hard-coded 1080 once cropped the top half of an upscaled take and blew it up.
No grade. Chasing a saturation or warmth reading was tried twice and both looked wrong. The take goes in as generated.
The voice leads. A music bed is ducked under the voice (sidechain); the mix is normalised to -14 LUFS.
Captions come after this (caption-burn, transcribed from this output).

What's included

--layer: footage-cutlist cut.py output rendered from the same cut list as

--creator: create-creator-takes-h3 join_takes.py output, reel time from 0.

--audio creator|music|none: the voice (+ ducked --music), the --music bed alone

The creator track may be shorter than the reel (a 2.3s reaction hook): it only shows

--head: where the crop sits vertically when the creator is scaled to cover an area

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