The page this skill built from examples/harbourline, working in your browser. Opens in a new tab.

5-second example rendered by this skill from examples/harbourline · 1280×720

Example settingswhat each example above was built from

examples/harbourlinehero.json

Brand: Harbourline
Kicker: Uptime checks · status pages · on-call
Headline: Whatever the weather, Stay lit

What you get

A one-page hero and a paste-in embed with your name, words and links
The lighthouse cut out of every frame and drawn over a giant outline of your word
The intro tied to the film's own clock: the capitals rise out of the sea, a band of lamplight sweeps them twice, the wordmark lamp flashes
Stills for reduced motion, no WebGL, blocked autoplay or a slow connection, so it is never blank
A phone layout: the headline stays in the frame, the introduction and buttons move into a block underneath
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

Uptime, security, backup and insurance products can open on a lighthouse holding steady while storm waves explode against the rocks.
Anyone with a promise to keep gets giant capitals swept by a band of lamplight, with the tower standing in front of the word.
Teams with a short spec or guarantee can engrave a name and two lines on a brass plate sitting on the rocks.

Not for

Swapping in your own video: the matte is made for this film, and the scene (a lighthouse in a storm) is the design
Changing the colors, fonts or layout through settings (every word and link is yours; the look is fixed)
Long headlines: the capitals take up to 9 characters and the italic line up to 22
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: a red-and-white lighthouse on black rocks in a winter storm at blue hour, its lamp blazing and its beam reaching through the rain while huge waves explode white against the rocks. Giant condensed capitals rise out of the sea under an italic serif line and a band of lamplight sweeps across them twice; a huge outline of the word runs across the sky behind the tower, and the lighthouse is cut out of every frame and drawn in front of it. Around it are a wordmark whose lamp flashes like a real light, links, a lamp-yellow button, an engraved brass plate on the rocks and three short facts. 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 Storm Lighthouse hero for our backup service: italic line 'Whatever happens,', the capitals 'Kept safe', our links and sign-up button, three facts, and record the video for our launch post.

How it works

You ask
Make a Storm Lighthouse hero for our backup service: italic line 'Whatever happens,', the capitals 'Kept safe', our links and sign-up button, three facts, and record the video for our launch post.
Your agent
1. 1
  Collect the words
  Every number, price and claim must come from the person.
2. 2
  Write hero.json
  Copy <skill>/examples/harbourline/hero.json (Harbourline, uptime checks and status pages for small teams) and replace every value.
3. 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. 4
  Check
  It serves the page on localhost and opens it at 390, 768, 1280 and 1920 px wide and with reduced motion.
5. 5
  Look at it
  Open the address it prints.
6. 6
  Record the video (optional)
  Writes out/preview.mp4 (1920×1080, 30 fps, five seconds, with the film's sound) and out/poster.png (the last moment).
7. 7
  Put it on the site
  Either use out/index.html as the page, or paste out/embed.html into an existing page and copy out/assets/ next to it (or change the four assets/ paths to where you host them).
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_PATH if they don't).
ffmpeg for the video (brew install ffmpeg, winget install ffmpeg, apt install ffmpeg; or set FFMPEG_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 out serves 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 Nov 9, 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 out and open the address. If it still shows the still, the section's data-fh-still attribute 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 add Access-Control-Allow-Origin on the CDN.
The build says a field is too long
Shorten the words. The capitals are sized for up to 9 characters with the space and the italic line for 22.

What’s in the download

SKILL.md10.5 KBthese instructions.
examples/
examples/harbourline/1.15 KB1 file
scripts/
scripts/kit/the Footage Heroes kit the four scripts run (build.mjs, runtime.js for the browser, frame.css, check.mjs, serve.mjs, record.mjs, cdp.mjs); scripts/kit/KIT.md says how it fits together.
scripts/kit/build.mjs15.0 KB
scripts/kit/cdp.mjs4.90 KB
scripts/kit/check.mjs6.37 KB
scripts/kit/frame.css2.85 KB
scripts/kit/KIT.md5.57 KB
scripts/kit/record.mjs7.23 KB
scripts/kit/runtime.js8.43 KB
scripts/kit/serve.mjs2.55 KB
scripts/build.mjs146 Bchecks hero.json against template/fields.json and 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.mp4 with sound and poster.png, or one still.
scripts/serve.mjs146 Bserves a built hero on localhost to look at.
template/
template/fields.json3.34 KBevery field of hero.json with its limit, plus the film's length and the hero's colours and fonts.
template/hero.html9.64 KBthe design: its CSS, the layer behind the lighthouse, the layer in front, and the GSAP timeline.
NOTICE.md1.25 KB
TESTED.json358 B

19 files · 83.4 KB · installs to ~/.claude/skills/storm-lighthouse-hero for Claude Code and ~/.agents/skills/storm-lighthouse-hero for other agents

Credits and licenses: NOTICE.md plus any LICENSE files inside the ZIP.

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Details

Output: Cinematic 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 · 28 skills
For: Founder Marketer Designer Ecommerce seller Content creator
Updated: Nov 9, 2026
Checked: Nov 9, 2026: its own commands ran and passed. That is a working check, not a security audit.

Written for

Claude Code Codex Cursor GitHub Copilot Gemini CLI OpenCode

See all 31 agents that read skill folders.

Install guides

For your agent

Generates with

Footage generated for Lookbk with Seedance 2.0, with a per-frame matte of the subjectGSAP 3.14.2 (pinned CDN, SRI)WebGL subject cut-out in the browserHeadless Chrome checks and frame-stepped recorder + ffmpeg

Uses tools

GSAP WebGL FFmpeg Chrome Node.js

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FAQ

Can I put my own video behind the headline?

No. The matte that cuts out the lighthouse was made for this film, so the footage is part of the design. Every word and link is yours through hero.json; the footage, colors, fonts and layout stay as they are.

How long can the headline be?

The italic line takes up to 22 characters and the capitals up to 9, space included, with a full stop added. The capitals stop before the tower; the giant outline behind it repeats your word. The build lists every field that is too long, and the check fails if anything spills or overlaps.

What do visitors see if the film cannot play?

The last frame and the lighthouse 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 Storm Lighthouse 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 (an original still animated into 1080p film with Seedance 2.0, 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.