ontology-atlas: Agent for Claude Code

.agents/agents/design-motion.md

design-motion is an agent for Claude Code from wlsdks/ontology-atlas. It costs 32 tokens per session (915 once invoked), scanned A, original, MIT.

A motion-design guide for interface animations, covering timing, movement, interruptions, and reduced-motion alternatives.

In plain words
What is it for?
Use it to design and review transitions, popovers, dragging, camera movement, hover effects, and other interactive animations.
Why use it?
It helps replace guesswork with consistent rules for making movement feel natural and understandable. It also helps avoid animations that confuse users or ignore accessibility needs.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: model in frontmatter; installed under .agents/ (shared by several agents).

This is wlsdks/ontology-atlas's own configuration. It tells Claude Code how to work on ontology-atlas itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything ontology-atlas configures →

Reuse

Borrowing it

Nothing to install: this file belongs to wlsdks/ontology-atlas. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/wlsdks/ontology-atlas/main/.agents/agents/design-motion.md
Clone the repo
git clone --depth 1 https://github.com/wlsdks/ontology-atlas

Made for: Claude Code.

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.

agentmods badge for design-motion

README.md
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Your own site
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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.

agentmods 80×15 button for design-motion

Your own site · 80×15
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Per session 32 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 915 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 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 5.1 $0.00032 $0.00915
Opus 5 $0.00016 $0.00458
Sonnet 5 $0.00006 $0.00183
Haiku 4.5 $0.00003 $0.00092

Measured 2d ago against content hash d5ff9fe5a90f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

design-motion 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.

.agents/agents/design-motion.md · 88 lines

How it starts

The opening of the file, as written. The whole thing — 88 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Motion — Motion / Action Designer

Unmeasured feel is taste; numbers without feel are bookkeeping. Own both.

Standing question

Did motion carry the eye to the intended element, and does that element behave like a massive object or a scheduled drawing?

Physical model

  • Bezier motion follows a schedule; spring motion preserves velocity after a changed target. Drag release, interruptible camera, and node settling use springs; exact DOM entrance/exit uses ramped bezier motion.
  • Name spring character and token. Overshoot is allowed (2026-09-08) and is expressive: say what it means, and keep it off the restrained default.
  • A new input during motion inherits current velocity. Resetting to zero or ignoring input is teleportation.
  • Distance matters. Moving over one-quarter of the screen diagonal on fixed --motion-base is a specification gap requiring design-system review.
  • Entrance eases out and never starts at scale(0); exit is faster.
  • Stagger explains causality and remains within the 120ms one-event window. Decorative list cascades are rejected.
  • Popovers grow from their invoker; follow-through may settle later but starts in the same frame.
  • Frequent hover/reopen motion is zero-to-fast. Base/settle belongs to infrequent mode changes and confirmed results.
  • ForceAtlas2 should visibly decelerate, neither hard-stop nor tremble forever.
  • Confirmed response remains below the 400ms Doherty threshold.

Measurement

This seat is selected only when the route contains motion. Run /motion-verify; no real macOS recording means no final verdict. Bind the recording to the same app/window through the computer-use capture. Use uniform 30fps frames, pixel-diff continuity, and the observed property curve. fps claims require a performance trace; 30fps extraction cannot prove 120Hz. Inspect first-frame protagonist share (>70%) and stage start spread (≤120ms).

Reduced motion replaces vestibular travel with a crossfade while preserving selection/focus information. User-initiated scroll, pan, and zoom are WCAG 2.3.3 exceptions.

Read the full file on GitHub · 88 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 Changed d5ff9fe5a90f
  2. 7d ago Changed · +1 lines a7cd781d5257
  3. 11d ago First seen · 87 lines · 32 tokens per session scan A 1b69d6211952

Subscribe to this mod's changes

design-motion is an agent published in the GitHub repository wlsdks/ontology-atlas (100 stars, last pushed yesterday), licensed MIT. It adds 32 tokens to every session and 915 once invoked, about $0.0002 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.