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 agentmods add skills/dylantarre/animation-principles/intermediatenpx skills add dylantarre/animation-principles --skill intermediategit 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/intermediate)<a href="https://agentmods.dev/skills/dylantarre/animation-principles/intermediate"><img src="https://agentmods.dev/badge/skills/dylantarre/animation-principles/intermediate.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00025 | $0.00555 |
| Opus 5 | $0.00013 | $0.00278 |
| Sonnet 5 | $0.00005 | $0.00111 |
| Haiku 4.5 | $0.00003 | $0.00056 |
Grade A, and why
Animation Principles - Intermediate 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 5d 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 — 58 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Combining Principles for Stronger Animation
You can apply individual principles. Now learn to weave them together and understand their interdependencies.
Principle Synergies
Squash/Stretch + Timing
Volume preservation is key. Faster motion = more stretch. The timing dictates the degree. A 2-frame anticipation needs less squash than a 6-frame one.
Anticipation + Follow Through
These are mirrors. Anticipation magnitude should roughly match follow through. Big wind-up = big settle. They create rhythmic bookends to any action.
Staging + Secondary Action
Secondary actions must support staging, never compete. If staging says "look at the face," secondary action in hands should point attention there, not away.
Arcs + Slow In/Out
Arcs aren't uniform speeds. Apply easing along the arc path. Spacing should bunch at start/end of the arc, spread in the middle.
Pose to Pose + Straight Ahead
Hybrid approach: Key poses first (pose-to-pose), then animate overlapping elements straight ahead. Best of both: structure with spontaneity.
Common Combination Mistakes
Over-anticipation: When every action has massive wind-up, nothing feels spontaneous. Reserve big anticipation for big payoffs.
Competing secondary actions: Three things moving differently splits attention. Hierarchy matters - one leads, others support.
Uniform timing: Every action at 12 frames feels mechanical. Vary your timing: quick decisions, slow realizations.
Arc neglect in follow through: The main action arcs beautifully, then appendages move linearly. Everything arcs.
The 12 Principles by Function
Physics: Squash/Stretch, Timing, Arcs, Slow In/Out Clarity: Staging, Solid Drawing, Anticipation Interest: Secondary Action, Exaggeration, Appeal Technique: Straight Ahead/Pose to Pose, Follow Through/Overlap
Integration Exercise
Animate a character sitting down:
- Staging: Camera angle shows full body profile
- Anticipation: Slight upward before descent
- Arcs: Hips trace a curved path down
- Timing: Faster drop, slower settle
- Squash: Compress on contact
- Follow Through: Arms/head continue after hips land
- Overlapping: Hair settles last
- Secondary: Adjusting clothing
- Slow Out: Gradual stop to final pose
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.
- 5d ago First seen · 58 lines · 25 tokens per session scan A f45c15aece78
Animation Principles - Intermediate is a skill published in the GitHub repository dylantarre/animation-principles (79 stars, last pushed 8mo ago), licensed MIT. It adds 25 tokens to every session and 555 once invoked, about $0.0001 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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