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.
curl -O https://raw.githubusercontent.com/wlsdks/ontology-atlas/main/.agents/skills/motion-verify/SKILL.mdgit clone --depth 1 https://github.com/wlsdks/ontology-atlasWrote 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/wlsdks/ontology-atlas/motion-verify)<a href="https://agentmods.dev/skills/wlsdks/ontology-atlas/motion-verify"><img src="https://agentmods.dev/badge/skills/wlsdks/ontology-atlas/motion-verify/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.
<a href="https://agentmods.dev/skills/wlsdks/ontology-atlas/motion-verify"><img src="https://agentmods.dev/badge/skills/wlsdks/ontology-atlas/motion-verify.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to high
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- high Anti-Refusal · line 111 Skill instructs the agent to omit warnings, disclaimers, or ethical commentary. Stripping safety caveats hides risk from the user and is a common jailbreak preamble.Fix: Remove instructions that suppress warnings, disclaimers, or ethical commentary. Let the agent surface safety-relevant caveats to the user.
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 | $0.00036 | $0.01243 |
| Opus 5 | $0.00018 | $0.00622 |
| Sonnet 5 | $0.00007 | $0.00249 |
| Haiku 4.5 | $0.00004 | $0.00124 |
Grade A, and why
motion-verify 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.
How it starts
The opening of the file, as written. The whole thing — 122 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Motion verification from a recording
Screenshots prove only that an animation reaches sampled states. Jank and frozen frames hide between them. Record the real macOS display, extract uniform frames, inspect a phase strip, then measure adjacent-frame change. This method found the spotlight ring's speed and braided-orbit defects in 2026-07-23.
Run whenever pnpm design:route includes motion-verify. This is the completion
proof for temporal output, not an optional craft review.
Preconditions
- The surface is visible on a real monitor. Headless sequential screenshots may diagnose a defect but cannot approve motion; if recording is unavailable, report the proof as deferred.
- Resolve available
ffmpegandffprobeexecutables; the Homebrew path is an example, not a requirement. Report missing instrumentation before recording. - Put recordings and frames in an external session scratch directory.
- Capture the same app/window/state through the computer-use capability so the accessibility owner and screenshot bind the recording to the reviewed surface.
1. Prepare a deterministic state
Set the exact URL, zoom, and state. The map sleeps while idle, so confirm the motion keeps it awake and disable simulated reduced motion unless that is the subject.
Add ?guides=off. A first-run overlay contaminates the opening frames; closing it
by hand adds its own animation and focus change. Use ?guides=reset only when the
guide itself is under test.
2. Record and extract
cd <scratch-directory>
screencapture -v -V 4 motion.mov
mkdir -p vidframes
ffmpeg -y -loglevel error -i motion.mov -vf fps=30 vidframes/f%03d.png
ffprobe -v error -select_streams v:0 -show_entries stream=width,height -of csv=p=0 motion.mov
3. Find the crop carefully
Page coordinates differ from recording coordinates because of Retina scaling and window position. Colour can locate candidates but cannot identify motion. A prior amber-ring search cropped a static project hexagon and almost concluded that the ring was frozen. Build and inspect a strip for candidate crops before computing statistics.
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 Changed f5abf4fa8c0a
- 5d ago Changed · +14 lines a6202ece9812
- 7d ago Changed · +8 lines 1100ab48e838
- 11d ago First seen · 100 lines · 36 tokens per session scan A 436e38d624b9
motion-verify is a skill published in the GitHub repository wlsdks/ontology-atlas (103 stars, last pushed today), licensed MIT. It adds 36 tokens to every session and 1,243 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.
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