design-eng SKILL.md skillA
design-eng from vanducng/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add vanducng/skills/design-eng@v1.0.0Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- vanducng/skills
- Path
skills/design-eng/SKILL.md- Versions recorded
- 1
- Latest version
- v1.0.0, committed Oct 7, 2026
- Size
- 6,036 bytes
- Repository stars
- 8
- License
- MIT
Decides whether UI motion should exist, then picks easing, duration, origin, and gesture behavior. Covers frequency limits, springs, popover origin, tooltips, clip-path reveals, drag dismissal, and reduced motion. Activates when adding a transition, popover, drawer, toast, or drag gesture, or when the user says 'design engineering', 'should this animate', 'easing', 'spring', 'popover origin', or 'emil'. Do not use for concentric radius, surface shadows, the 0.96 press scale, or icon…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Design engineering > Motion decisions from Emil Kowalski's design-engineering notes (MIT). Unseen details compound. Keyboard actions never animate. Do the task. Do not open with a philosophy recap. ## What this skill is, and is not | This skill | Not this skill | | --- | --- | | Should this animate, and with which easing, duration, and origin | Exact polish numbers (`vd:better-ui`) | | Popovers, tooltips, toasts, drawers, clip-path, drag | Design-system choice, tokens, page build (`vd:uiuxdesign`) | | A Before / After / Why review table | Posting that table on a PR (`vd:code-review`) | When `vd:better-ui` already names an exact value, use that value. | Interaction | Use | | --- | --- | | Press scale | `0.96` from `vd:better-ui`, not `0.97` | | Icon cross-fade | scale `0.25`, blur `4px`, bounce `0` from `vd:better-ui` | | Page-level stagger | ~100ms from `vd:better-ui` | | List stagger | 30-80ms, in [motion.md](references/motion.md) | | Crossfade mask | `blur(2px)` here, not the icon blur | ## Hard rules 1. Answer "should this animate?" before writing a curve. Frequency decides. A keyboard shortcut or command palette never animates. …
Read the whole file at its exact version.
How to install
mdr add vanducng/skills/design-eng@sha256:714b44292f7fc77eThe line at the top of this page pins the label v1.0.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_mey3ihj2ltvbwdqz)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Oct 7, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (6036 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
vanducng/skills · 8 stars · license MIT · pushed 2026-11-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_mey3ihj2ltvbwdqz GET https://markdownregistry.com/api/v1/resolve?ref=vanducng/skills/design-eng GET https://markdownregistry.com/api/v1/blob/714b44292f7fc77ec73c1b93a0e2742e25ade1c049b3624bf71961984278fa3b
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.