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 Varnan-Tech/opendirectory --skill vid-motion-graphicsgit clone --depth 1 https://github.com/Varnan-Tech/opendirectoryWrote 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/varnan-tech/opendirectory/vid-motion-graphics)<a href="https://agentmods.dev/skills/varnan-tech/opendirectory/vid-motion-graphics"><img src="https://agentmods.dev/badge/skills/varnan-tech/opendirectory/vid-motion-graphics.svg" alt="Measured on agentmods" 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 | $0.00118 | $0.03443 |
| Opus 5 | $0.00059 | $0.01722 |
| Sonnet 5 | $0.00024 | $0.00689 |
| Haiku 4.5 | $0.00012 | $0.00344 |
Grade A, and why
vid-motion-graphics 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 8d 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.
How it starts
The opening of the file, as written. The whole thing — 333 lines — stays where its author put it; the contents beside it link to each section on GitHub.
vid-motion-graphics
Generates multi-scene motion graphics as MP4. Renders HTML/CSS animations in headless Chromium via Playwright (Web Animations API frame-seeking), assembles PNG frames with FFmpeg. No React, no AI APIs, no Python — zero new dependencies beyond the graphic-gif family.
CDN fonts only. No external libraries in HTML.
Critical Rules (read before every generation)
- Use
window.renderFrame(t)— no CSS@keyframesfor scene transitions. CSS animationcurrentTimeseeking is silently ignored for backward seeks in Chromium. The renderFrame approach: a pure JS function computesopacity/transformdirectly from milliseconds. Playwright calls it once per frame. Deterministic, race-free. - No
animation-delayon ANY element. Not needed with renderFrame. If you catch yourself writinganimation-delay, stop — you're using the wrong architecture. window.__videoReady = trueonly insidedocument.fonts.ready.then(...). Never set synchronously — fonts must load before Playwright captures frame 1 or text renders with fallback fonts.- Expose
window.__stopPreview(). The browser's rAF preview loop races with Playwright's evaluate/screenshot calls.capture-frames.mjscalls__stopPreview()before the frame loop. Always include it. - Use
t < startMs(not<=) in scene boundary checks.t <= 0at frame 0 makes scene 1 black. The correct guard isif (t < startMs || t >= endMs) return hidden. - Body = exact pixel dimensions. Width and height are integers (
1080px,1920px). No%,vw/vh, or responsive units. - No two scenes visible simultaneously (except 10% enter overlap). All scenes
opacity: 0outside their renderFrame window. - Transitions use
opacityonly. Nodisplaytoggle, novisibility— GPU-composited opacity is frame-perfect. - Never dump HTML in chat. Save to file, show summary only.
- Title states the message, not the topic. "3 Reasons Q4 Crushed Targets" not "Q4 2024 Performance Video".
- Read
references/scene-library.mdbefore generating ANY HTML. Use exact HTML structure and CSS class names from that file.
What ships with it
6 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.
- 8d ago First seen · 333 lines · 118 tokens per session scan A 9bcf558d9997
vid-motion-graphics is a skill published in the GitHub repository Varnan-Tech/opendirectory (635 stars, last pushed 22d ago), licensed MIT. It adds 118 tokens to every session and 3,443 once invoked, about $0.0006 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.
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