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13-second example rendered by this skill from examples/dailyfern-streak · 1280×720

Example settingswhat each example above was built from

examples/dailyfern-streakbrief.json
Brand
Dailyfern
Format
wide
Date
Tuesday, 4 March
Headline
Small habits, kept daily.
Colors
field #e8e2d6 · ink #1d201c · accent #e0592a · accent2 #3f6f5a
examples/ferrow-dinnerbrief.json
Brand
Ferrow
Format
tall
Date
Friday, 14 November
Headline
Dinner, door to door in 23 minutes.
Colors
field #121621 · ink #eef0f3 · accent #c8f560 · accent2 #7d93ff

What you get

  • A vertical 1080×1920 or 16:9 1920×1080 MP4 with sound, from one field
  • An original soundtrack with a whoosh on every card and the collapse, and a sting as the button lands, with nothing to license
  • Cards that land on the beat, one on the drop, and a button that lands on the final hit
  • 3 to 7 big, readable notifications with app name, title, message and time
  • A counter tied to the stack that flips and punches with each card
  • A rich lit field, a frosted glass card material and an original phone drawn in CSS
  • A pasteable PROMPT.md for Claude Code or Codex, and two invented example briefs
  • Open-source licenses for every part it builds on

Good fit

  • An app launch where the notifications themselves show what the product does for people every day.
  • A delivery, booking or fitness service that wants one Reels or TikTok ad built from its real status updates.
  • A team that needs the same reel in 9:16 and 16:9 without opening an editor.

Not for

  • Screen recordings of a real app
  • Copies of a specific phone maker's lock screen
  • Videos longer than about 17 seconds
  • More than 7 notifications
  • Projects with voiceover already timed

About this skill

A phone with a metal frame and a glass screen stands very close to the camera on a field of your brand colour lit by soft pools of your accents, cut to an original beat-synced soundtrack generated on your machine. The first notification is already on the lock screen at frame 0. Each later card slides in on its beat, frosted glass over a deep gradient wallpaper, with every line at least 3% of the frame's height and a haptic buzz of the whole phone, and one lands on the drop. A counter beside the clock rolls to the next number with every card. Then a hard cut turns the stack into one deck, which falls into place as your button on the music's final hit while your headline rolls up.

Example request

Make a vertical notification reel for our app: 5 notifications landing on a lock screen, our brand colours, ending on the headline and a button that says Download now.

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Details

Output
MP4 · 9 to 17 s · 1080×1920
Needs
Node.js 22+, FFmpeg on the PATH and Chrome (HyperFrames downloads a headless Chrome on the first render), plus network access to load GSAP and the Inter and Outfit fonts once.
Series
Creator Kit · 2 skills
Updated
Nov 2, 2026
Checked
Nov 1, 2026: its own commands ran and passed. That is a working check, not a security audit.

Generates with

HyperFramesGSAPbeatgen 2 (bundled music and sound effects)FFmpeg
Good forSocial mediaProduct launchBrand

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FAQ

How many notifications can a reel have?

Between 3 and 7. The first is on screen from frame 0 and each later one slides in on a beat with a whoosh. The newest two stay fully readable; older ones tuck into a softened pile. The reel runs about 9 to 17 seconds, a whole number of bars, and the end card is its last bar.

Does it look like a real phone's lock screen?

No. The phone is a generic slab with a punch-hole camera, and the cards use their own layout: a lettered app tile, the app name and a time on one row, a bold title and a message of up to three lines. Nothing copies a phone maker's hardware or system screens.

Where does the music come from?

The bundled beatgen generator synthesises an original track in one of six styles for the exact length of the reel, with a seed for variation. Nothing is sampled, so there is nothing to license. Each card's slide-in, the collapse and the button landing on the final hit are laid out on its beat grid, with sound effects on them.

Which agents is Notification Stack Reel 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 heygen-com/hyperframes

What Lookbk adds on top of heygen-com/hyperframes (Apache-2.0): Lookbk wrote this package for the catalog: it renders with HyperFrames (Apache-2.0), animates with GSAP (Standard License), and sets type in Inter, Outfit and JetBrains Mono under the SIL Open Font License 1.1, with an original soundtrack from the bundled beatgen generator.

Credits and licenses for the open-source software and fonts it uses are in NOTICE.md inside the download.