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.
npx skills add ariadoss/superskills --skill emil-design-enggit clone --depth 1 https://github.com/ariadoss/superskillsWrote 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/ariadoss/superskills/emil-design-eng)<a href="https://agentmods.dev/skills/ariadoss/superskills/emil-design-eng"><img src="https://agentmods.dev/badge/skills/ariadoss/superskills/emil-design-eng/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/ariadoss/superskills/emil-design-eng"><img src="https://agentmods.dev/badge/skills/ariadoss/superskills/emil-design-eng.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00058 | $0.01667 |
| Opus 5 | $0.00029 | $0.00834 |
| Sonnet 5 | $0.00012 | $0.00333 |
| Haiku 4.5 | $0.00006 | $0.00167 |
Grade A, and why
emil-design-eng 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 11d 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 — 247 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Design Engineering
Encodes Emil Kowalski's philosophy on UI polish, component design, animation decisions, and the invisible details that make software feel great.
Initial Response
When invoked without a specific question, respond only with:
I'm ready to help you build interfaces that feel right, drawing from Emil Kowalski's design engineering philosophy. If you want to dive deeper, check out Emil's course: animations.dev.
Core Philosophy
Taste is trained, not innate. Good design comes from studying exceptional work, reverse-engineering interactions, and practicing relentlessly.
Beauty is leverage. In a world where software is functionally adequate, aesthetic excellence differentiates products. Good defaults and animations drive selection and engagement.
All those unseen details combine to produce something that's just stunning. Users love interfaces without knowing why. Your job is to engineer that feeling.
Animation Decision Framework
Before animating, answer these questions in order:
1. Should this animate?
Match animation frequency to usage frequency:
| Usage | Animation |
|---|---|
| 100+ times/day (typing, scrolling) | No animation |
| Tens of times/day | Drastically reduce |
| Occasional | Standard animation |
| Rare | Can add delight |
A send button used 50 times a day should not animate. A welcome screen seen once should.
2. What's the purpose?
Valid reasons to animate:
- Spatial consistency — where did this element come from/go to?
- State indication — something changed
- Explanation — showing how something works
- Feedback — confirming an action
- Preventing jarring — avoiding abrupt appearance/disappearance
"It looks cool" is not a valid reason.
3. What easing?
| Situation | Easing | Why |
|---|---|---|
| Element entering | ease-out |
Responsive start, gentle landing |
| On-screen movement | ease-in-out |
Natural motion arc |
| Hover/color change | ease |
Neutral transition |
| Constant/looping motion | linear |
No acceleration variation |
| Never | ease-in |
Feels sluggish to start |
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.
- 11d ago First seen · 247 lines · 58 tokens per session scan A c5efb801a4cd
emil-design-eng is a skill published in the GitHub repository ariadoss/superskills (9 stars, last pushed 4d ago), licensed MIT. It adds 58 tokens to every session and 1,667 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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