principle-product-design SKILL.md skillA
principle-product-design from lugassawan/swe-workbench is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add lugassawan/swe-workbench/principle-product-design@git:20260828.71a6399Pins git:20260828.71a6399 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- lugassawan/swe-workbench
- Path
skills/principle-product-design/SKILL.md- Versions recorded
- 4
- Latest version
- git:20260828.71a6399, committed Aug 28, 2026
- First version recorded
- Jun 12, 2026
- Size
- 10,765 bytes
- Repository stars
- 3
- License
- MIT
UX and product design principles — Nielsen's 10 usability heuristics, visual hierarchy, interaction design patterns, design-system compliance, and responsive layout. Accessibility/WCAG conformance is delegated to `swe-workbench:principle-accessibility`. Auto-load when reviewing UX, evaluating usability, assessing visual hierarchy or information architecture, auditing design-system compliance, or planning user-facing features.
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
<!-- preload-canary: SWB-PRELOAD-PRINCIPLE-PRODUCT-DESIGN -->
# Product Design Principles
## Usability Heuristics (Nielsen's 10)
Every user-facing component must satisfy these. Violations block progress.
| Heuristic | Rule | Common Violation |
|---|---|---|
| **Visibility of system status** | Users always know what's happening | No loading indicator during async operations; silent failures with no feedback |
| **Match between system and real world** | Use language and concepts users know | Developer jargon in UI labels ("null", "undefined", "404"); unfamiliar abbreviations |
| **User control and freedom** | Provide undo, cancel, and escape routes | Destructive action with no confirmation; no way to cancel an in-progress operation |
| **Consistency and standards** | Same action, same result, everywhere | Button styles that vary across views; inconsistent terminology for the same concept |
| **Error prevention** | Prevent errors before they happen | Allowing invalid input submission; no constraints on date ranges or numeric fields |
…Read the whole file at its exact version.
How to install
mdr add lugassawan/swe-workbench/principle-product-design@sha256:07016a69c513fe3bThe line at the top of this page pins the label git:20260828.71a6399, 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_yi5dd65dmdhg7a6l)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Jun 12, 2026 and Aug 28, 2026, about one every 26 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260828.71a6399 latest | 2026-08-28 | 71a6399 | 10,765 B | A | view · diff |
| git:20260811.925e30f | 2026-08-11 | 925e30f | 10,822 B | A | view · diff |
| git:20260725.074b496 | 2026-07-25 | 074b496 | 10,808 B | A | view · diff |
| git:20260612.b9b411c | 2026-06-12 | b9b411c | 10,746 B | A | view |
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 (10765 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
lugassawan/swe-workbench · 3 stars · license MIT · pushed 2026-11-07 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_yi5dd65dmdhg7a6l GET https://markdownregistry.com/api/v1/resolve?ref=lugassawan/swe-workbench/principle-product-design GET https://markdownregistry.com/api/v1/blob/07016a69c513fe3b655dfde5123838beaa132660c5f28a3723be7fe639cbbe68
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.