The page this skill built from examples/spinwell, working in your browser. Opens in a new tab.
5-second example rendered by this skill from examples/spinwell · 1280×720
What you get
- A one-page hero and a paste-in embed with your name, words, numbers and links
- The jukebox cut out of every frame and drawn over the giant chrome headline
- Chrome lines that shrink to fit when the words are wide, so they never leave the frame
- A title strips card for two A-side, artist, B-side entries (records, a menu, a line-up)
- The intro animation tied to the film's own clock, so words and picture stay in step
- A phone layout: the headline stays in the frame, the introduction and buttons move into a block underneath
- Stills of the last frame for reduced motion, no WebGL, blocked autoplay or a slow connection, so it is never blank
- A 1080p MP4 with the film's sound and a poster, rendered frame by frame
- Checks at 390, 768, 1280 and 1920 px for overflow, overlaps, links and script errors
- Open-source licenses for every part it builds on
Good fit
- Record shops, record clubs, listening bars, venues and music apps can open on a slow push-in through a basement full of vinyl to a glowing chrome jukebox.
- Anyone who wants words behind a moving subject gets giant chrome letters, the jukebox cut out of every frame so the headline's end slides behind its glass on the push-in.
- Brands with something to list (this month's records, a menu, a line-up) can put two on jukebox title strips, beside a stat counting up from zero during the film.
Not for
- Swapping in your own video: the matte is made for this film, and the scene (a jukebox in a 1970s record den) is the design
- Changing the colors, fonts or layout through settings (every word, number and link is yours; the look is fixed)
- Long headlines: the chrome lines take five characters each, and the end of the second line goes behind the jukebox
- Sound on the live page (browsers only autoplay muted video; the MP4 keeps the sound)
- Full landing pages below the hero (see the Landing Pages series)
About this skill
A website hero on five seconds of generated footage: the camera pushes slowly into a 1970s basement record den, past crates of vinyl, velvet armchairs, string lights and sunbeams, until a glowing chrome jukebox fills the right of the frame. Two lines of giant chrome letters sit behind the jukebox, which is cut out of every frame and drawn over them, so the end of the headline slides behind its glass as the camera moves in; an amber script line is written across them and a glint runs over the chrome. Around it: links with jukebox selection keys, a red selector button with a spinning coin, a card of jukebox title strips with a turning record, counting stats and film grain. Your agent writes one hero.json with your words and links; the build checks every length and writes a page and an embed, and a recorder makes a 1080p MP4 with sound.
Example request
Make a Jukebox Den hero for our record shop's mail-order club: script 'Dig for', chrome lines 'Deep' and 'Cuts', this month's three records on the title strips, our links and buttons, and record the video for the launch post.
How it works
Your agent
- 1
Collect the words
Every number, price, title and claim must come from the person.
- 2
Write hero.json
Copy
<skill>/examples/spinwell/hero.json(Spinwell, a mail-order club for used records) and replace every value. - 3
Build
It lists every problem at once (a missing field, a word too long for its place, a bad link) and writes nothing until they're fixed.
- 4
Check
It serves the page on localhost and opens it at 390, 768, 1280 and 1920 px wide and with reduced motion.
- 5
Look at it
Open the address it prints.
- 6
Record the video (optional)
Writes
out/preview.mp4(1920×1080, 30 fps, five seconds, with the film's sound) andout/poster.png(the last moment). - 7
Put it on the site
Either use
out/index.htmlas the page, or pasteout/embed.htmlinto an existing page and copyout/assets/next to it (or change the fourassets/paths to where you host them).
- 1
You get
- out/preview.mp4
- out/poster.png
- out/index.html
- out/embed.html


What you need
- Node.js 18 or newer. Nothing to install.
- Chrome, Chromium or Edge, for the checks and the video (the scripts find it; set
CHROME_PATHif they don't). - ffmpeg for the video (
brew install ffmpeg,winget install ffmpeg,apt install ffmpeg; or setFFMPEG_PATH). - A web server for the page. Opened straight from disk (
file://) browsers won't let the page draw the film, and it shows the still;node scripts/serve.mjs outserves it on localhost. - Internet access when the page is opened: GSAP and the fonts load from jsDelivr (pinned, with an integrity hash) and Google Fonts. Without GSAP the hero shows its still with every word in place.
Last checked Oct 27, 2026: the package’s own build and render commands ran and passed.
If something goes wrong
The page shows a still picture instead of the film
It was opened from disk; run
node scripts/serve.mjs outand open the address. If it still shows the still, the section'sdata-fh-stillattribute says why (reduced-motion,no-webgl,autoplay-blocked,film-failed,film-slow,no-timeline).The film doesn't play on the live site but did locally
The film is on another domain without CORS headers. Serve
assets/from the same site as the page, or addAccess-Control-Allow-Originon the CDN.The build says a field is too long
Shorten the words. The chrome lines are sized for 5 characters each and the script line for 10.
What’s in the download
- SKILL.md13.2 KBthese instructions.
- examples/
- examples/spinwell/1.40 KB1 file
- scripts/
- scripts/kit/the Footage Heroes kit the four scripts run (
build.mjs,runtime.jsfor the browser,frame.css,check.mjs,serve.mjs,record.mjs,cdp.mjs);scripts/kit/KIT.mdsays how it fits together. - scripts/kit/build.mjs13.6 KB
- scripts/kit/cdp.mjs4.90 KB
- scripts/kit/check.mjs5.48 KB
- scripts/kit/frame.css2.24 KB
- scripts/kit/KIT.md4.52 KB
- scripts/kit/record.mjs7.23 KB
- scripts/kit/runtime.js7.94 KB
- scripts/kit/serve.mjs2.55 KB
- scripts/build.mjs146 Bchecks
hero.jsonagainsttemplate/fields.jsonand writes the page, the embed and the assets. - scripts/check.mjs146 Bserves the page and checks it at four widths and with reduced motion.
- scripts/chrome.mjs3.63 KBfinds Chrome, Chromium or Edge.
- scripts/record.mjs148 Brenders the words frame by frame and lays them on the film with ffmpeg:
preview.mp4with sound andposter.png, or one still. - scripts/serve.mjs146 Bserves a built hero on localhost to look at.
- template/
- template/fields.json4.03 KBevery field of
hero.jsonwith its limit, plus the film's length and the hero's colours and fonts. - template/hero.html13.0 KBthe design: its CSS, the layer behind the jukebox, the layer in front, and the GSAP timeline.
- NOTICE.md1.33 KB
- TESTED.json722 B
19 files · 86.4 KB · installs to ~/.claude/skills/jukebox-den-hero for Claude Code and ~/.agents/skills/jukebox-den-hero for other agents
Credits and licenses: NOTICE.md plus any LICENSE files inside the ZIP.
Similar Skills
View allDetails
- Output
- Retro hero on generated footage · words behind the subject · page + embed · 1080p MP4 with sound
- Needs
- Node.js 18+, Chrome, and ffmpeg for the video; the page needs a web server (a local one is included)
- Series
- Footage Heroes · 17 skills
- Updated
- Oct 27, 2026
- Checked
- Oct 27, 2026: its own commands ran and passed. That is a working check, not a security audit.
Written for
See all 31 agents that read skill folders.
Install guides
For your agent
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Write a reviewFAQ
Can I put my own video behind the headline?
No. The matte that cuts the jukebox out was made for this film, so the footage is part of the design. Every word, number and link is yours through hero.json; the footage, colors, fonts and layout stay as they are.
How long can the words be?
Each chrome line takes up to 5 characters, the script line and wordmark up to 10 each. Wide letters make both chrome lines smaller so they stay in frame, and the end of the second line is meant to slide behind the jukebox. The build lists every field that is too long and writes nothing until they are fixed; the check fails if anything spills or overlaps.
What do visitors see if the film cannot play?
The last frame and the jukebox cut out of it, as pictures, with every word in place. That covers reduced motion, no WebGL or GSAP, blocked autoplay, a film that takes more than 8 seconds to start, or a page opened from disk instead of a web server.
Which agents is Jukebox Den Hero written for?
Any agent that reads SKILL.md folders, including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI and OpenCode.
Do I own what I make with it?
Yes. Everything your agent makes with this skill is yours, including for client and commercial work.
What if it doesn’t work for me?
Email support@lookbk.dev within 7 days of buying and we’ll fix it or refund you.
Credits and licensesBuilt on greensock/GSAP
What Lookbk adds on top of greensock/GSAP (Standard License): the footage, which was generated for Lookbk (a still image animated into film, with the matte cut from every frame), and the layout, template and Footage Heroes kit, all written for Lookbk. GSAP (free under its Standard License) loads from a pinned CDN with SRI; the fonts are from Google Fonts.
Credits and licenses for the open-source software and fonts it uses are in NOTICE.md inside the download.