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-electric-studiogit 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-electric-studio)<a href="https://agentmods.dev/skills/nexu-io/html-video/frame-electric-studio"><img src="https://agentmods.dev/badge/skills/nexu-io/html-video/frame-electric-studio/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-electric-studio"><img src="https://agentmods.dev/badge/skills/nexu-io/html-video/frame-electric-studio.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 | $0.00031 | $0.01002 |
| Opus 5 | $0.00015 | $0.00501 |
| Sonnet 5 | $0.00006 | $0.00200 |
| Haiku 4.5 | $0.00003 | $0.00100 |
Grade A, and why
frame-electric-studio 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 11d 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: 电光工作室分屏帧 (Electric Studio)】 【意图】pull-quote / 推荐语 / 使命陈述 / 高对比标题。视觉提炼自 frontend-slides 的 Electric Studio 预设 (MIT, © Zara Zhang)。
【画布】1920×1080, 白色上屏 (540px) + 电光蓝下屏 (#4361ee, 540px), 中线分割。
【字体】display + body 都用 Manrope 800/700/500/400。
【主结构 (时间轴, 默认 4s)】
- 0.1s 上屏从 translateY(-100%) 下落、下屏从 translateY(100%) 上升, 同时从中心"开合"到位 (expo-out)。
- 0.9s 接缝处黑色 accent 条 (高 8px) 从宽 0 → 320px 生长。
- 1.0s 起 引言逐行浮现 (每行 .ln, 错峰 150ms, translateY 26→0); 跨入蓝屏的行用白色 (
.on-blue)。font-size 96px, weight 800。 - 2.2s 下屏 attribution (name 28px 700 + role uppercase 0.7 opacity, 白色) 淡入。
- 2.5s 右上品牌 mark (深色) + 右下品牌 mark (白 0.6) 淡入。
【配色纪律】白 / 电光蓝 #4361ee / 近黑 #0a0a0a 三色。accent 条与品牌词用黑/白, 蓝是大色块。禁止第四个主色。
【内容纪律】
- quote 拆成 2-4 行, 让 1-2 行落在蓝屏 (改
.on-blueclass) 形成跨屏对比。 - 必须用真实引言/陈述, 严禁 lorem ipsum。
- 动效用
@keyframes,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.
- 11d ago First seen · 60 lines · 31 tokens per session scan A 2f1e719d55ca
frame-electric-studio is a skill published in the GitHub repository nexu-io/html-video (4,564 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 31 tokens to every session and 1,002 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
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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-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-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-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.