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 dylantarre/animation-principles --skill rhythm-pacinggit clone --depth 1 https://github.com/dylantarre/animation-principlesWrote 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/dylantarre/animation-principles/rhythm-pacing)<a href="https://agentmods.dev/skills/dylantarre/animation-principles/rhythm-pacing"><img src="https://agentmods.dev/badge/skills/dylantarre/animation-principles/rhythm-pacing/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/dylantarre/animation-principles/rhythm-pacing"><img src="https://agentmods.dev/badge/skills/dylantarre/animation-principles/rhythm-pacing.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 | $0.00038 | $0.00902 |
| Opus 5 | $0.00019 | $0.00451 |
| Sonnet 5 | $0.00008 | $0.00180 |
| Haiku 4.5 | $0.00004 | $0.00090 |
Grade A, and why
rhythm-pacing 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.
How it starts
The opening of the file, as written. The whole thing — 87 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Rhythm & Pacing
Think like a composer scoring with motion. Animation is visual music. Beats, measures, crescendos, rests—all translate to movement and stillness across time.
Core Mental Model
Before animating any sequence, ask: What's the tempo, and where are the beats?
Every good scene has rhythm. Fast-fast-slow. Action-rest-action. The pattern creates expectation; breaking the pattern creates surprise. Master the beat.
The 12 Principles Through Music
Timing — Tempo control. Frames per action define speed. Consistent timing creates rhythm. Varied timing creates interest. Know when to be metronome-steady and when to rubato.
Slow In & Slow Out — The space between notes. Easing is like vibrato—it shapes the attack and release of each movement-note. Hard stops are staccato. Soft settles are legato.
Anticipation — The upbeat before the downbeat. Music notation shows anticipation as the breath mark. The pause that creates emphasis on what follows.
Follow Through & Overlapping Action — Counterpoint. Multiple elements moving at different rhythms create harmonic complexity. The main action is melody; follow-through is accompaniment.
Secondary Action — Rhythm section. While the lead melody (primary action) plays, secondary elements keep the underlying beat. They support without overpowering.
Staging — Composition includes visual rhythm. Pattern and variation in how shots are framed. Long shot, medium shot, close-up—like verses and choruses.
Exaggeration — Accents and dynamics. Fortissimo movements demand attention. Pianissimo subtlety creates contrast. Without dynamic range, rhythm becomes monotonous.
Squash & Stretch — Visual percussion. Impact frames are drum hits. Stretch is the sustain. Squash-stretch patterns create rhythmic texture in motion.
Arcs — Melodic lines. Smooth arcs are flowing melodies. Sharp direction changes are rhythmic accents. The shape of motion in time is the shape of music in space.
Appeal — Rhythmic motion is inherently appealing. Humans are pattern-recognizing creatures. We find pleasure in rhythm and satisfaction when patterns resolve.
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 · 87 lines · 38 tokens per session scan A 062b26a49db5
rhythm-pacing is a skill published in the GitHub repository dylantarre/animation-principles (80 stars, last pushed 8mo ago), licensed MIT. It adds 38 tokens to every session and 902 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.
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