animate

A guide for adding purposeful movement to an interface, such as transitions, hover effects, and small responses to user actions.

In plain words
What is it for?
Use it to review a feature and add animations or micro-interactions to buttons, page changes, show-and-hide behavior, and other interface states.
Why use it?
It helps users understand state changes and receive feedback when actions happen, while considering performance and motion sensitivity.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/arnabdeypolimi/claude_code_setup/animate
Any agent
npx skills add arnabdeypolimi/claude_code_setup --skill animate
Clone the repo
git clone --depth 1 https://github.com/arnabdeypolimi/claude_code_setup

Made for: Claude Code, Codex.

Per session 53 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,759 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 95% copy Near-identical to another mod 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.

ModelPer sessionOnce invoked
Fable 5 $0.00053 $0.01759
Opus 5 $0.00026 $0.00879
Sonnet 5 $0.00011 $0.00352
Haiku 4.5 $0.00005 $0.00176

Measured 2d ago against content hash 70b6be1e085b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

animate 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.

Origin

This is a copy

95% identical to animate — 7 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.claude/skills/animate/SKILL.md · 174 lines

How it starts

The opening of the file, as written. The whole thing — 174 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Analyze a feature and strategically add animations and micro-interactions that enhance understanding, provide feedback, and create delight.

MANDATORY PREPARATION

Invoke /frontend-design — it contains design principles, anti-patterns, and the Context Gathering Protocol. Follow the protocol before proceeding — if no design context exists yet, you MUST run /teach-impeccable first. Additionally gather: performance constraints.


Assess Animation Opportunities

Analyze where motion would improve the experience:

  1. Identify static areas:

    • Missing feedback: Actions without visual acknowledgment (button clicks, form submission, etc.)
    • Jarring transitions: Instant state changes that feel abrupt (show/hide, page loads, route changes)
    • Unclear relationships: Spatial or hierarchical relationships that aren't obvious
    • Lack of delight: Functional but joyless interactions
    • Missed guidance: Opportunities to direct attention or explain behavior
  2. Understand the context:

    • What's the personality? (Playful vs serious, energetic vs calm)
    • What's the performance budget? (Mobile-first? Complex page?)
    • Who's the audience? (Motion-sensitive users? Power users who want speed?)
    • What matters most? (One hero animation vs many micro-interactions?)

If any of these are unclear from the codebase, ask the user directly to clarify what you cannot infer.

CRITICAL: Respect prefers-reduced-motion. Always provide non-animated alternatives for users who need them.

Plan Animation Strategy

Create a purposeful animation plan:

  • Hero moment: What's the ONE signature animation? (Page load? Hero section? Key interaction?)
  • Feedback layer: Which interactions need acknowledgment?
  • Transition layer: Which state changes need smoothing?
  • Delight layer: Where can we surprise and delight?

IMPORTANT: One well-orchestrated experience beats scattered animations everywhere. Focus on high-impact moments.

Read the full file on GitHub · 174 lines

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.

  1. 2d ago First seen · 174 lines · 53 tokens per session scan A 70b6be1e085b

Subscribe to this mod's changes

animate is a skill published in the GitHub repository arnabdeypolimi/claude_code_setup (4 stars, last pushed 3mo ago), licensed MIT. It adds 53 tokens to every session and 1,759 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. It is 95% identical to animate, differing in 7 lines, and is treated as a copy.

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