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 iart-ai/motion-design-skills --skill remotion-videogit clone --depth 1 https://github.com/iart-ai/motion-design-skillsWrote 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/iart-ai/motion-design-skills/remotion-video)<a href="https://agentmods.dev/skills/iart-ai/motion-design-skills/remotion-video"><img src="https://agentmods.dev/badge/skills/iart-ai/motion-design-skills/remotion-video/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/iart-ai/motion-design-skills/remotion-video"><img src="https://agentmods.dev/badge/skills/iart-ai/motion-design-skills/remotion-video.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk 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 | $0.00090 | $0.02346 |
| Opus 5 | $0.00045 | $0.01173 |
| Sonnet 5 | $0.00018 | $0.00469 |
| Haiku 4.5 | $0.00009 | $0.00235 |
Grade A, and why
remotion-video 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- remotion-video — 100% identical, 0 lines differ
How it starts
The opening of the file, as written. The whole thing — 195 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Remotion (Programmatic Video)
Build real MP4/GIF/WebM videos in React. Every frame is a pure function of useCurrentFrame(), so output is deterministic, scrubbable, diffable, and renderable in CI. The code-first alternative to After Effects for templated and data-driven motion graphics.
When to use
- Render MP4/GIF/WebM from code (social clips, title cards, explainers).
- Templated/data-driven videos: one composition, many outputs from props (per-user, per-record, per-row of a CSV/DB).
- Motion graphics that must be versioned, code-reviewed, and rendered in CI without a GUI.
- Programmatic audio sync, charts that animate from data, or embedding shaders/Three.js into video.
Core techniques
Frame-driven animation
Animation is derived from the current frame, never from setState or requestAnimationFrame. interpolate maps an input range to an output range; spring produces physically natural motion.
import {useCurrentFrame, useVideoConfig, interpolate, spring} from 'remotion';
export const Title = () => {
const frame = useCurrentFrame();
const {fps} = useVideoConfig();
// Fade in over frames 0-30, then stay (clamp prevents over/undershoot).
const opacity = interpolate(frame, [0, 30], [0, 1], {
extrapolateLeft: 'clamp',
extrapolateRight: 'clamp',
});
// Spring entrance; divide by spring duration is unnecessary — drive transforms directly.
const scale = spring({frame, fps, config: {damping: 200, mass: 1, stiffness: 100}});
return <h1 style={{opacity, transform: `scale(${scale})`}}>Hello</h1>;
};
Always clamp interpolate unless an intentional overshoot is desired — by default it extrapolates linearly past the range, which produces opacity > 1 or negative values.
Scheduling: Sequence and Series
<Sequence> shifts time: children see frame reset to 0 at the sequence's from. Use it to place clips on a timeline. <Series> lays out back-to-back segments without manual offset math.
import {Sequence, Series, AbsoluteFill} from 'remotion';
export const Timeline = () => (
<AbsoluteFill style={{backgroundColor: 'black'}}>
<Sequence from={0} durationInFrames={60}><Intro /></Sequence>
<Sequence from={60} durationInFrames={90}><Body /></Sequence>
{/* Series auto-sequences; offset overlaps the previous segment for crossfades */}
<Series>
<Series.Sequence durationInFrames={60}><ShotA /></Series.Sequence>
<Series.Sequence durationInFrames={60} offset={-15}><ShotB /></Series.Sequence>
</Series>
</AbsoluteFill>
);
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.
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.
- 12d ago First seen · 195 lines · 90 tokens per session scan A 93221d5e32d1
remotion-video is a skill published in the GitHub repository iart-ai/motion-design-skills (29 stars, last pushed 2mo ago), licensed MIT. It adds 90 tokens to every session and 2,346 once invoked, about $0.0005 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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