animate

A guide for adding purposeful movement to user interfaces, such as transitions, hover effects, and small interaction responses.

In plain words
What is it for?
Use it to review a feature and choose suitable animation techniques, from CSS effects to more advanced motion or 3D tools.
Why use it?
It helps motion explain changes, provide feedback, and make an interface feel more responsive without adding movement without a reason.

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

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 2,242 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original 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.

ModelPer sessionOnce invoked
Fable 5 $0.00053 $0.02242
Opus 5 $0.00026 $0.01121
Sonnet 5 $0.00011 $0.00448
Haiku 4.5 $0.00005 $0.00224

Measured 2d ago against content hash 9c509125bd55, 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.

skills/animate/SKILL.md · 212 lines

How it starts

The opening of the file, as written. The whole thing — 212 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

Run the cognition constraint loop (MANDATORY) — see ~/.claude/docs/reference/cognition-constraint-loop.md. (If design-builder loaded this skill only for craft reference, ignore this block and use the craft below.)

Invoke {{command_prefix}}impeccable — 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 {{command_prefix}}impeccable teach first. Additionally gather: performance constraints.


Three-tier routing (NEW — runs FIRST)

Use motion-design-principles peer skill for routing:

  • Tier 1: CSS (animation-timeline: scroll(), @starting-style, View Transitions)
  • Tier 2: GSAP + Lenis (timeline choreography, pinning, scrub, split text)
  • Tier 3: Three.js (inherently 3D)

Present the tier decision to the user. NEVER auto-escalate. See skills/motion-design-principles/SKILL.md.

Directional, not perspective (NEW)

2D translation, fades, clip-path reveals, mask animations allowed. 3D transforms, tilt effects, parallax-in-z-axis, device-orientation effects REFUSED. See ~/.claude/docs/concepts/design-contract/preferences/motion-references.md.

Craft source (NEW)

All motion craft — custom easing curves, durations, press states — from skills/animation-engineering/SKILL.md (Emil Kowalski's skill).


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

Read the full file on GitHub · 212 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 · 212 lines · 53 tokens per session scan A 9c509125bd55

Subscribe to this mod's changes

animate is a skill published in the GitHub repository adilkalam/orca (2 stars, last pushed 1mo ago), licensed MIT. It adds 53 tokens to every session and 2,242 once invoked, about $0.0003 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 2026-08-31.

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