What is animation-principles?

A guide to applying Disney’s 12 animation principles to interface and character motion. It covers CSS transitions and keyframes, JavaScript animation tools, and Rive.

Use it to build, review, or tune transitions, hover effects, loading effects, and animated characters.

It gives animation work a set of established principles for judging timing, movement, and visual clarity. This helps when an effect feels wrong but the cause is unclear.

animation-principles — Skill for Claude Code by futuregerald

Install

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.

Any agent

npx skills add futuregerald/futuregerald-claude-plugin --skill animation-principles

Clone the repo

git clone --depth 1 https://github.com/futuregerald/futuregerald-claude-plugin

Made for: Claude Code.

Or install futuregerald-claude-plugin, the plugin that ships this one along with the rest of its 61 skills, 15 agents.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/futuregerald/futuregerald-claude-plugin/animation-principles/github.svg)](https://agentmods.dev/skills/futuregerald/futuregerald-claude-plugin/animation-principles)

Your own site

<a href="https://agentmods.dev/skills/futuregerald/futuregerald-claude-plugin/animation-principles"><img src="https://agentmods.dev/badge/skills/futuregerald/futuregerald-claude-plugin/animation-principles/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/futuregerald/futuregerald-claude-plugin/animation-principles"><img src="https://agentmods.dev/badge/skills/futuregerald/futuregerald-claude-plugin/animation-principles.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 62 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,305 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin unknown No closer match found in the catalogue.

Token cost

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	$0.00062	$0.01305
Opus 5.5	$0.00025	$0.00522
Sonnet 5.5	$0.00012	$0.00261
Haiku 4.5	$0.00006	$0.00130

Measured 2d ago against content hash a927485a3787, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

animation-principles 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 2d 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.

skills/animation-principles/SKILL.md · 68 lines

The source is not reproduced here

No licence file

Read it on GitHub

Files

What ships with it

1 file 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.

references/rive.md 3.9 KB

Changes

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.

2d ago First seen · 68 lines · 62 tokens per session scan A a927485a3787

Subscribe to this mod's changes

animation-principles is a skill published in the GitHub repository futuregerald/futuregerald-claude-plugin (7 stars, last pushed 2d ago), with no licence file. It adds 62 tokens to every session and 1,305 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-11-05.

CSS and styling Design and UX Frontend animation css javascript motion rive

animation-principles next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
animation-principlesfuturegerald/futuregerald-claude-plugin	Skill	7	2d ago	none	A	62	Claude Code
emil-design-skillsoyi77/1ai-skills	Skill	17	yesterday	MIT	A	73	Claude Code
hero-slider-settleUnclecheng-li/AI_Animation	Skill	1.7k	11d ago	MIT	A	0	Claude Code, Codex
animateericrisco/rsc-harness	Skill	503	2d ago	MIT	A	75	Claude Code, Codex
reimagine-itKayforkind/reimagine-it	Skill	212	5d ago	MIT	A	230	Claude Code
hero-constellationUnclecheng-li/AI_Animation	Skill	1.7k	11d ago	MIT	A	0	Claude Code, Codex
hero-grid-rippleUnclecheng-li/AI_Animation	Skill	1.7k	11d ago	MIT	A	0	Claude Code, Codex