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 game-developmentgit 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/game-development)<a href="https://agentmods.dev/skills/dylantarre/animation-principles/game-development"><img src="https://agentmods.dev/badge/skills/dylantarre/animation-principles/game-development.svg" alt="Measured on agentmods" 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 | $0.00028 | $0.01003 |
| Opus 5 | $0.00014 | $0.00502 |
| Sonnet 5 | $0.00006 | $0.00201 |
| Haiku 4.5 | $0.00003 | $0.00100 |
Grade A, and why
game-development 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 — 102 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Game Development Animation
Apply Disney's 12 animation principles to game engines, player feedback, and interactive entertainment.
Quick Reference
| Principle | Game Implementation |
|---|---|
| Squash & Stretch | Character deformation, impact frames |
| Anticipation | Wind-up animations, charge indicators |
| Staging | Camera focus, environmental cues |
| Straight Ahead / Pose to Pose | Procedural vs keyframed animation |
| Follow Through / Overlapping | Capes, hair, weapon trails |
| Slow In / Slow Out | Animation curves, attack/recovery |
| Arc | Projectile paths, jump trajectories |
| Secondary Action | Particles, screen shake, audio sync |
| Timing | Frame data, hit-stop, response windows |
| Exaggeration | Stylized movement, hit reactions |
| Solid Drawing | Consistent silhouettes, read at distance |
| Appeal | Character personality, satisfying feedback |
Principle Applications
Squash & Stretch: Deform characters on landing impact. Stretch during fast movement. Impact frames freeze and squash for power. Keep volume consistent in deformation.
Anticipation: Attack wind-ups telegraph to players. Jump squats before leaving ground. Charge attacks show buildup. Enemy tells warn of incoming damage.
Staging: Camera frames important action. Environmental lighting guides attention. Enemy placement creates readable combat scenarios. UI doesn't obscure critical gameplay.
Straight Ahead vs Pose to Pose: Procedural animation (ragdoll, physics) is straight ahead. Keyframed attack combos are pose to pose. Blend both—keyframed base with procedural secondary motion.
Follow Through & Overlapping: Secondary elements (hair, cloth, tails) continue after body stops. Weapon trails persist after swing. Landing recovery extends past initial impact.
Slow In / Slow Out: Use animation curves—never linear for character motion. Attack startup fast-out, recovery slow-in. Ease jumps at apex for floatiness control.
Arc: Jumping follows parabolic arc. Sword swings trace curved paths. Projectiles arc naturally unless hitscan. Dodge rolls curve rather than linear translate.
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 · 102 lines · 28 tokens per session scan A 5cb351308410
game-development is a skill published in the GitHub repository dylantarre/animation-principles (79 stars, last pushed 8mo ago), licensed MIT. It adds 28 tokens to every session and 1,003 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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