frame-liquid-bg-hero

frame-liquid-bg-hero is a skill for Claude Code, Codex from nexu-io/html-anything. It costs 36 tokens per session (1,001 once invoked), scanned A, original, Apache-2.0.

A design template for a fluid, colorful background with large overlaid text, suitable for a video opening, website landing-page hero, or poster. It offers CSS, canvas, or WebGL approaches, with a static fallback for reduced motion or simpler use.

In plain words
What is it for?
Use it to build a landscape or portrait visual with moving gradients, metaballs, or shader-based distortion; add a large quote, subtitle, and optional call-to-action; and choose from four restrained color palettes.
Why use it?
It provides a defined way to create an animated fluid backdrop without deciding the layout, colors, motion, and text treatment from the beginning.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to build a landscape or portrait visual with moving gradients, metaballs, or shader-based distortion; add a large quote, subtitle, and optional call-to-action; and choose from four restrained color palettes.

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Install with agentmods
npx agentmods add skills/nexu-io/html-anything/frame-liquid-bg-hero
About the project

html-anything is a local AI-assisted HTML editor in which coding-agent command-line tools create documents such as articles, presentations, posters, prototypes, and reports from reusable templates. People use it to produce HTML and export it to services such as WeChat, X, and Zhihu or to HTML and PNG files. The catalogue entries are the skills and instructions that define its output surfaces and workflows.

nexu-io/html-anything · 8,754 stars · on GitHub · open-design.ai

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add nexu-io/html-anything --skill frame-liquid-bg-hero
Clone the repo
git clone --depth 1 https://github.com/nexu-io/html-anything

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for frame-liquid-bg-hero

README.md
[![agentmods](https://agentmods.dev/badge/skills/nexu-io/html-anything/frame-liquid-bg-hero/github.svg)](https://agentmods.dev/skills/nexu-io/html-anything/frame-liquid-bg-hero)
Your own site
<a href="https://agentmods.dev/skills/nexu-io/html-anything/frame-liquid-bg-hero"><img src="https://agentmods.dev/badge/skills/nexu-io/html-anything/frame-liquid-bg-hero/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for frame-liquid-bg-hero

Your own site · 80×15
<a href="https://agentmods.dev/skills/nexu-io/html-anything/frame-liquid-bg-hero"><img src="https://agentmods.dev/badge/skills/nexu-io/html-anything/frame-liquid-bg-hero.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 36 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,001 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00036 $0.01001
Opus 5 $0.00018 $0.00500
Sonnet 5 $0.00007 $0.00200
Haiku 4.5 $0.00004 $0.00100

Measured 12d ago against content hash f1b11d1b97b6, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

frame-liquid-bg-hero scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

next/src/lib/templates/skills/frame-liquid-bg-hero/SKILL.md · 56 lines

What it actually says

【模板: 流体背景 Hero】 【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。

【画布】1920×1080 (横) 或 1080×1920 (竖), 二选一。背景占满。

【流体背景 — 3 种实现, 按用户偏好选】

  1. CSS 多层 radial-gradient 错位呼吸 (最稳, 默认推荐):
    • 3-5 个大椭圆 radial-gradient(...), 颜色取自调色板。
    • 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: screenoverlay
    • 顶层加 1 层 backdrop-filter: blur(80px) 让边缘更糊。
  2. Canvas + simple perlin noise (中阶):
    • 80 行 inline JS, 用 requestAnimationFrame 画 metaballs 或 simplex noise field。
    • 性能允许时启用, prefers-reduced-motion 时降回静态截图。
  3. WebGL fragment shader (高阶, 慎用):
    • 用 jsdelivr CDN 引 regl 或 inline plain WebGL。
    • shader 写 domain-warp noise; 单个 quad, 一个 uniform u_time

【顶层文字层】

  • 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
  • 文字色用 paper white #fafaf8 或 ink, 取决于背景明暗; 加 mix-blend-mode: difference 让它在任何流体颜色上都可读。
  • 副标 (小 sans, opacity 0.7) 一行。
  • 底部可选 CTA chip 或 hairline + 元数据 row。

【调色 — 4 选 1, 不要彩虹】

  • 🌅 Solar Peach#ffb18a + #f78b4c + #d97757, 暖橙桃。
  • 🌊 Ocean Aqua#5ac8fa + #0a84ff + #1e3a8a, 海蓝。
  • 🌌 Aurora Violet#a78bfa + #7c5cff + #1e1b4b, 极光紫。
  • 🌿 Forest Mint#86efac + #34d399 + #065f46, 苔森林。

【设计细节】

  • 严禁: 多色彩虹 (>4 个色相)、PowerPoint 渐变、霓虹荧光叠加。
  • 字体: 中文用 Noto Serif SC (display) / Noto Sans SC (副标)。
  • 严禁外链图片; 全部 CSS + SVG + 可选 canvas。
  • 必须用用户提供的金句 / 标题; 如果用户输入是数据 → 提炼一句 ≤ 18 字的金句。
  • 单文件 HTML, 可被 prefers-reduced-motion 关动效。
Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 12d ago First seen · 56 lines · 36 tokens per session scan A f1b11d1b97b6

Subscribe to this mod's changes

frame-liquid-bg-hero is a skill published in the GitHub repository nexu-io/html-anything (8,754 stars, last pushed 19d ago), licensed Apache-2.0. It adds 36 tokens to every session and 1,001 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.