# Black Plate Dividers

> A band between two sections of a dark page with one lit object floating in it: a glass moth opening its wings, a liquid-chrome orb with a turning ring of light, a folded-paper lotus, a moss branch, a neon jellyfish, a prism shard. Each is a short 1080p loop on pure black, laid on the page with mix-blend-mode screen so the video's black becomes the page's black and only the light stays: no box, no frame. Six original loops ship in the package, about half a megabyte each. Your agent writes one divider.json with your page colors and words, builds the page, and checks that the edges are black and the loop does not jump. A still poster shows for reduced motion and when autoplay is blocked. A script turns your own clip of an object on black into a seamless loop.

- Output: Web, Looping object dividers · page + 6 loops · 1080p on pure black
- Price: $6.90 one-time, or included in Pro
- Page: https://lookbk.dev/skills/black-plate-dividers

## What you need

- Node.js 18 or newer. Nothing to install.
- ffmpeg, for `check.mjs` and `make-loop.mjs` (`brew install ffmpeg`, `winget install ffmpeg`, `apt install ffmpeg`; or set `FFMPEG_PATH`).
- A dark site. The effect needs a background that is black or a very dark colour.
- Optionally your own clip: a single lit object on pure black `#000000`, in the middle third of a 16:9 frame, moving gently, 4 to 10 seconds, from any video generator or 3D tool.

## Install

```bash
curl -fsSL https://lookbk.dev/cli.js | node - add black-plate-dividers
```

The first run prints a sign-in link; open it, approve, and run the command again. Pro skills install for accounts that bought them or have Pro.

Where it installs:

- Run by Claude Code: `~/.claude/skills/black-plate-dividers` only, the one folder Claude Code reads.
- From your own terminal: `~/.agents/skills/black-plate-dividers`, which Codex, Gemini CLI, Copilot CLI, Cursor and OpenCode read, and also `~/.claude/skills/black-plate-dividers` when `~/.claude` exists.

Add `--claude` or `--shared` to write only one of those folders, or `--project` to install into the current folder instead. Start a new agent session afterwards so it picks up the skill.

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

## Example request

> Put a Black Plate divider between the hero and the pricing section of our dark landing page, using the glass moth loop, with our background color and a short line above and below.