html-video is a local tool that turns HTML, CSS, and data into animated MP4 videos using configurable rendering engines and templates. Coding agents use it to create and export videos on a user's machine, with optional AI-generated soundtracks. The catalogue skills operate the tool and its video-generation workflow.
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.
npx skills add nexu-io/html-video --skill frame-creative-voltagegit clone --depth 1 https://github.com/nexu-io/html-videoWrote 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.
[](https://agentmods.dev/skills/nexu-io/html-video/frame-creative-voltage)<a href="https://agentmods.dev/skills/nexu-io/html-video/frame-creative-voltage"><img src="https://agentmods.dev/badge/skills/nexu-io/html-video/frame-creative-voltage/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.
<a href="https://agentmods.dev/skills/nexu-io/html-video/frame-creative-voltage"><img src="https://agentmods.dev/badge/skills/nexu-io/html-video/frame-creative-voltage.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00032 | $0.01071 |
| Opus 5 | $0.00016 | $0.00535 |
| Sonnet 5 | $0.00006 | $0.00214 |
| Haiku 4.5 | $0.00003 | $0.00107 |
Grade A, and why
frame-creative-voltage 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 10d 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.
What it actually says
【模板: 创意电压分屏帧 (Creative Voltage)】 【意图】能量感品牌/活动标题 / 带手写人味的创意揭示 / 复古现代 hero。视觉提炼自 frontend-slides 的 Creative Voltage 预设 (MIT, © Zara Zhang)。
【画布】1920×1080, 左电光蓝屏 (#2f4bff, 47%) + 右暗屏 (#0d0d14, 53%), 错位分割。
【字体】display Syne 800; mono Space Mono; 手写 Caveat。
【主结构 (时间轴, 默认 4s)】
- 0.1s 左蓝屏从 translateX(-100%) 滑入; 0.25s 右暗屏从 translateX(100%) 滑入 (错峰, expo-out)。
- 0.9s 蓝屏左上电光高光 wash 淡入。
- 1.0s 蓝屏左上 mono meta 行 (
// CREATIVE_MODE · ON) 淡入。 - 1.0s 起 右屏 display 标题逐行升起 (每行 .ln, 错峰 180ms); 一行用
.volt描边电光词 (-webkit-text-stroke+ 蓝色填充)。font-size 132px, 右对齐。 - 1.4s 蓝屏手写 script (
Caveat, rotate -7°) 弹入。 - 1.9s script 下方手绘 underline (SVG path, stroke-dashoffset 描出)。
- 2.2s 右下 mono caption 淡入。
【配色纪律】电光蓝 #2f4bff/#6f86ff / 暗 #0d0d14 / 白。蓝是能量主色, 描边词与 script 制造"电压"对比。禁止杂色。
【内容纪律】
- display 拆 2-4 行, 选一个词做
.volt描边强调。 - script 是短手写词组 (≤24 字符), 给画面人味。
- 必须用真实标题, 严禁 lorem ipsum。
- 动效用
@keyframes+ SVG stroke,prefers-reduced-motion下全部停在终态。 - 单文件 HTML。
What ships with it
5 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.
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.
- 10d ago First seen · 63 lines · 32 tokens per session scan A 7813aff3c4f6
frame-creative-voltage is a skill published in the GitHub repository nexu-io/html-video (4,557 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 32 tokens to every session and 1,071 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.
Other skills, from other repositories
frame-flowchart-sticky
SVG curve connectors, sticky-note nodes, and cursor interaction with a whiteboard-brainstorm feel.
frame-glitch-title
Digital glitch, chromatic offset, and data-corruption title frame for video transitions or cyberpunk heroes.
frame-logo-outro
Segmented logo assembly, glow bloom, and tagline reveal for video outros or brand closing frames.
frame-glitch-title
A design template for a glitch-style title frame in Chinese, intended for a video transition, hero image, or cyberpunk graphic. It describes dark backgrounds, distorted lettering, colored offsets, scan lines, noise, and timecode details.
frame-light-leak-cinema
A visual template for a cinematic opening frame or chapter card. It combines warm film light leaks, 35mm-style grain, black letterbox bars, and large serif lettering.
frame-logo-outro
A design template for an animated video ending where a brand logo assembles from geometric pieces, gains a glow, and reveals its name, tagline, and call to action.