5-second example rendered by this skill from examples/den · 1280×720
About this skill
What Lookbook adds on top of greensock/GSAP: the footage, which was generated for Lookbook (a still image animated into film, with the matte cut from every frame), and the layout, template and Footage Heroes kit, all written for Lookbook. 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.
Example request
Make a Den Computer hero for our home-assistant product with our name, headline, terminal lines and buttons, and record the video.
How it works
Your agent
- 1
Collect the words
Every number, price and claim must come from the person.
- 2
Write hero.json
Copy
<skill>/examples/den/hero.json(Den, a small home computer that keeps lists and minds the lamps) 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 26, 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 giant word is sized for up to 9 characters, the greeting for 8 and the sticker's big word for 7.
What’s in the download
- SKILL.md11.8 KBthese instructions.
- examples/
- examples/den/1.38 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.json3.43 KBevery field of
hero.jsonwith its limit, plus the film's length and the hero's colours and fonts. - template/hero.html10.2 KBthe design: its CSS, the layer behind the computer, the layer in front, and the GSAP timeline.
- NOTICE.md1.21 KB
- TESTED.json221 B
19 files · 80.9 KB · installs to ~/.claude/skills/den-computer-hero for Claude Code and ~/.agents/skills/den-computer-hero for other agents
Credits and licenses: NOTICE.md plus any LICENSE files inside the ZIP.
Similar Skills
View all
What you get
- A one-page hero and a paste-in embed with your name, words, numbers and links
- The computer, lamp and planter cut out of every frame and drawn over the headline
- 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
- Makers of home tech, smart-home and privacy products can open on a beige home computer in a wood-paneled den with a bubbling lava lamp.
- Products with a voice can show a green-screen terminal card that types out a short conversation, ending on a blinking cursor.
- Brands with a short greeting and one friendly word, such as Hello and operator., can set them behind the computer, lamp and planter.
Not for
- Swapping in your own video: the matte is made for this film, and the scene (an early-1980s home computer in a wood-paneled 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: each field has a length limit the build enforces
- 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)
Compatibility
Written for
See all 31 agents that read skill folders.
Install guides
For your agent
Generates with
Written for any agent that reads SKILL.md folders. Added Oct 26, 2026. Commercial use of everything you make is included.
Reviews
No reviews yet
Be the first to rate it. Anyone who installs this skill can leave a review.
Reviews come from people who installed this skill.
Write a reviewFAQ
How long can the terminal conversation be?
One line you type of up to 30 characters, then one to three machine replies of up to 31 characters each. It types at a steady pace, and a longer conversation types a little faster so the last line always finishes before the film ends.
Why does my giant word disappear behind the computer?
It has wide letters such as m and w and runs past the lava lamp. The giant word is sized for up to 9 characters, a word like operator., and the greeting for 8. Pick a narrower word or drop a letter.
Is the terminal shown on a phone?
No. Under 760 px the terminal is hidden, because its type would be too small to read. The frame keeps the headline and the sticker, and a block underneath shows the introduction and buttons. With reduced motion, the whole conversation is shown typed out.
Which agents is Den Computer 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.