Liquid Background Hero Frame Agent Skill

Generates high-end WebGL-style fluid displacement backgrounds with cinematic quote overlays for video intros and landing pages.

Context cost
2k tokensestimated from the bundle, loaded when it triggers
Bundle
3 files · 7.9 kBtext throughout, nothing executable
Licence
Apache-2.0the author’s own terms
Last change
—no release on file
Servers it uses
Noneruns standalone

What it does

WebGL-style fluid displacement background with a quote overlay, suited to video intros, landing heroes, or posters.

What this skill changes about the agent has not been set out here as a list. Its SKILL.md, shown below, says it in the author’s own words.

backgrounddesignfluidherohtml-in-canvasliquidvfx
Filed under

Design & Media

The skill itself

A skill is instructions the model reads, so you can see what you are getting: below is the start of its SKILL.md. The front matter loads with every session, the body loads when the skill triggers, and the whole file comes with the install.

SKILL.md4.1 kB · preview
--- name: frame-liquid-bg-hero zh_name: "流体背景 Hero 帧" en_name: "Liquid Background Hero" emoji: "🌊" zh_description: "WebGL 风流体置换背景 + 顶部叠加金句, 适合视频片头 / landing hero / 海报" en_description: "WebGL-style fluid displacement background with a quote overlay, suited to video intros, landing heroes, or posters." category: poster scenario: video aspect_hint: "1920×1080 (16:9) 或 1080×1920 (9:16)" featured: 39 tags: ["liquid", "fluid", "background", "hero", "html-in-canvas", "vfx"] example_id: sample-frame-liquid-bg-hero example_name: "流体背景 Hero · 金句" example_format: markdown example_tagline: "Aurora Violet 流体" example_desc: "多层 radial-gradient 呼吸背景 + difference 文字" example_source_url: "https://hyperframes.heygen.com/catalog" example_source_label: "hyperframes · vfx-liquid-background" od: mode: video surface: video scenario: video upstream: "https://github.com/nexu-io/html-anything" preview: type: html entry: index.html reload: debounce-100 design_system: requires: false example_prompt: "Use the Liquid Background Hero template to turn my content into a WebGL-style fluid displacement background with a quote overlay for a video intro, landing hero, or poster. Preserve the template's visual signature, use real content and data, and avoid lorem ipsum or placeholder images." example_prompt_i18n: zh-CN: "用「流体背景 Hero 帧」模板把我的内容做成一段「WebGL 风流体置换背景 + 顶部叠加金句, 适合视频片头 / landing hero / 海报」。保持模板的视觉签名,使用真实内容和数据,避免 lorem ipsum 和占位图片。" ---
37【模板: 流体背景 Hero】
38【意图】可作为视频片头帧、SaaS landing 顶部 hero、海报底图。WebGL 流体感, 但用 CSS / canvas 退化绘制, 确保单文件可双击打开。Inspired by hyperframes vfx-liquid-background。
39
40【画布】1920×1080 (横) 或 1080×1920 (竖), 二选一。背景占满。
41
42【流体背景 — 3 种实现, 按用户偏好选】
431. **CSS 多层 radial-gradient 错位呼吸** (最稳, 默认推荐):
44 - 3-5 个大椭圆 radial-gradient(...), 颜色取自调色板。
45 - 每个椭圆套 @keyframes 平移 + scale + hue-rotate, 周期 8-14s, 错峰; 整个画面叠 mix-blend-mode: screen 或 overlay。
46 - 顶层加 1 层 backdrop-filter: blur(80px) 让边缘更糊。
472. **Canvas + simple perlin noise** (中阶):
48 - 80 行 inline JS, 用 requestAnimationFrame 画 metaballs 或 simplex noise field。
49 - 性能允许时启用, prefers-reduced-motion 时降回静态截图。
503. **WebGL fragment shader** (高阶, 慎用):
51 - 用 jsdelivr CDN 引 regl 或 inline plain WebGL。
52 - shader 写 domain-warp noise; 单个 quad, 一个 uniform u_time。
53
54【顶层文字层】
55- 居中或左下: 一句巨型金句 (5-7vw, 衬线或粗 sans), 字体: Source Serif Pro / Inter Tight / Manrope Black。
This is a preview of SKILL.md. Download or install the skill to get the whole thing.
In the file
SKILL.md438 words
Files3
LicenceApache-2.0
Why you can read it

Nothing in a skill executes. The client loads the text and the model follows it, so a skill can be audited the way a runbook is — by reading it.

What it costs in context

Skills are not billed by the call. They are paid for in context: every token the instructions occupy is a token your code, your diff and your conversation cannot use. Here is what this one takes and when it takes it.

≈400
always loaded
The name and description, so the model knows the skill exists and when to reach for it.
1,575
on trigger
The instruction body and 2 supporting files, read only when the skill fires.
0.99%
of a 200k window
Ten skills this size would take about 10% of the window before you open a file.
050k100k150k200k context window

2k tokens, estimated from the bundle at four bytes to the token, held for the rest of the session once it triggers. Middling. Fine to keep on in a project where you use it weekly, worth unloading in one where you never do.

Servers bill, skills cost

A server charges by the month. A skill charges once per session, in context, and then keeps charging it for as long as the session lives.

Before and after

The same question, put to the same model twice: once as it comes, and once with these instructions loaded.

No worked example has been published for this skill yet.

The procedure it runs

The procedure has not been set out here step by step. It is in the body of its SKILL.md: the start of it is shown above, and the whole file comes with the install.

Prose, not code

These steps are written for a model to follow, not executed by a runtime. It can still be told to skip one, and it will say so when it does.

Servers it uses

None. This skill calls no MCP servers at all.

Everything it needs is in the instructions, so it works in a project with nothing connected — the model reads the file and changes how it works with what it can already reach.

Its SKILL.md does not declare which tools it asks the agent for, so what it touches is whatever the instructions themselves ask for — read them before you install it.

What it asks for
Writes filesnot declared
Network accessnot declared

This SKILL.md carries no allowed-tools line, so neither is declared. A skill grants no permissions of its own — it can only ask for tools your client already has.

What it will not do

Every skill is narrow, and the useful ones say where they stop. These are the jobs this one is the wrong tool for.

What this skill is not for has not been published here. Nothing is implied by that: it is a section the author has not filled in.

What is in the bundle

3 files, 7.9 kB on disk. A bundle is text throughout: the instructions the model reads, plus the templates it fills in.

  • SKILL.md4.1 kB
  • example.html3.6 kB
  • example.md0.2 kB
What is not in it

No dependencies and nothing executable: a skill is text the agent reads, so the bundle is 3 files you can review in full before installing. The Apache-2.0 licence covers the templates and examples as well as the instructions.

Install

Installing copies the bundle into your project. Nothing runs at install time — the files sit on disk until the model reads them.

# Liquid Background Hero Frame · 2k tokens when loaded · macOS, Linux mkdir -p .claude/skills && t=$(mktemp -d) && curl -fsSL -o "$t/bundle.tar.gz" https://mcprush.com/api/skills/liquid-background-hero-frame/bundle.tar.gz && tar -xzf "$t/bundle.tar.gz" -C "$t" && [ -d "$t/liquid-background-hero-frame" ] && { [ ! -e .claude/skills/liquid-background-hero-frame ] || { mv .claude/skills/liquid-background-hero-frame "$t/.previous" && echo "Previous copy moved to $t/.previous"; }; } && mv "$t/liquid-background-hero-frame" .claude/skills/ && echo "Installed .claude/skills/liquid-background-hero-frame"
On Windows, or any OS with Node 20+
npx mcprush@latest skill add nexu-io/liquid-background-hero-frame

Windows PowerShell says 'running scripts is disabled on this system'? Run Set-ExecutionPolicy -Scope CurrentUser RemoteSigned once, or type npx.cmd instead of npx (codex.cmd, gemini.cmd, grok.cmd likewise). PowerShell 7 needs neither. Writes to .claude/skills/liquid-background-hero-frame/ in the current project. For every project instead, run mkdir -p ~/.claude/skills && t=$(mktemp -d) && curl -fsSL -o "$t/bundle.tar.gz" https://mcprush.com/api/skills/liquid-background-hero-frame/bundle.tar.gz && tar -xzf "$t/bundle.tar.gz" -C "$t" && [ -d "$t/liquid-background-hero-frame" ] && { [ ! -e ~/.claude/skills/liquid-background-hero-frame ] || { mv ~/.claude/skills/liquid-background-hero-frame "$t/.previous" && echo "Previous copy moved to $t/.previous"; }; } && mv "$t/liquid-background-hero-frame" ~/.claude/skills/ && echo "Installed ~/.claude/skills/liquid-background-hero-frame" (macOS, Linux) — or add --global to the npx line. The curl line replaces .claude/skills/liquid-background-hero-frame/ only after the download succeeds, so files left there by another skill of the same name, or by an older release, do not mix in. A copy already there is moved aside, not deleted, and the line prints where. It appears as frame-liquid-bg-hero in Gemini CLI, Codex, Copilot and Grok (its own name); Claude Code lists it by the folder name, liquid-background-hero-frame.

Which clients pick it up on their own

A skill is a folder of text. Most of these read a skills folder and pick it up without being told; the rest take the same folder another way — an upload in the app, a parameter on an API call — and then choose it by its description just the same.

Claude Code.claude/skills/
Claude DesktopCustomize › Skills
ChatGPTSkills › Create › Upload
Cursor.cursor/skills/
VS Code.github/skills/
Codex CLI.agents/skills/
Gemini CLI.gemini/skills/
Grok Build.grok/skills/
Microsoft CopilotSkills › Upload a skill
PerplexityComputer › Skills › Upload a skill
DeepSeek Harness.dsh/skills/
Zed.agents/skills/
Devin Desktop.devin/skills/
Windsurf (legacy).windsurf/skills/
OpenAI Agents SDKInstructions or sandbox Skills
HTTP / APIa request parameter
This release
Versionnot versioned
Publishedno release date on file
PriceFree
Referencenexu-io/liquid-background-hero-frame

Versions

Its author publishes no version number, so there is nothing here to pin to: what you install is the folder as it stands today. Instructions change more often than APIs do — a skill can be rewritten entirely without anything it depends on moving.

Pinning

Nothing to pin to: this skill carries no version number of its own. What you install is what the folder holds on the day you install it.

Reviews

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