nielsen-usability-heuristics SKILL.md skillA
nielsen-usability-heuristics from dembrandt/dembrandt-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add dembrandt/dembrandt-skills/nielsen-usability-heuristics@git:20261001.b05848aPins git:20261001.b05848a in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- dembrandt/dembrandt-skills
- Path
skills/nielsen-usability-heuristics/SKILL.md- Versions recorded
- 2
- Latest version
- git:20261001.b05848a, committed Oct 1, 2026
- First version recorded
- Apr 19, 2026
- Size
- 9,380 bytes
- Repository stars
- 183
- License
- MIT
Nielsen's 10 usability heuristics. Use when auditing an interface, designing interaction flows, writing error messages or reviewing usability.
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
# Nielsen's 10 Usability Heuristics Foundational principles for evaluating and designing usable interfaces. Apply these as a review checklist and as design constraints from the start — not only as a post-hoc audit tool. --- ## 1. Visibility of System Status The design should always keep users informed about what is going on, through appropriate feedback within a reasonable amount of time. Users cannot make good decisions without knowing the current state of the system. Trust is built through clear, timely feedback. **In practice:** - Show loading states, progress indicators, and completion confirmations - Indicate where the user is in a multi-step process - Reflect state changes immediately (optimistic UI or loading spinners) - Never leave a user wondering whether an action was registered **Review question:** After any user action, is the outcome visible within 1 second? --- ## 2. Match Between System and Real World The design should speak the users' language — words, phrases, and concepts familiar to the user, not internal jargon or system terminology. Follow real-world conventions and natural mapping so the interface feels intuitive rather than requiring translation. …
Read the whole file at its exact version.
How to install
mdr add dembrandt/dembrandt-skills/nielsen-usability-heuristics@sha256:edd4cb54e073c07cThe line at the top of this page pins the label git:20261001.b05848a, 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_vzblo2xupsop4v5z)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Apr 19, 2026 and Oct 1, 2026, about one every 165 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261001.b05848a latest | 2026-10-01 | b05848a | 9,380 B | A | view · diff |
| git:20260419.c4563c9 | 2026-04-19 | c4563c9 | 9,504 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 (9380 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
dembrandt/dembrandt-skills · 183 stars · license MIT · pushed 2026-11-01 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_vzblo2xupsop4v5z GET https://markdownregistry.com/api/v1/resolve?ref=dembrandt/dembrandt-skills/nielsen-usability-heuristics GET https://markdownregistry.com/api/v1/blob/edd4cb54e073c07c1c38ea7715467144fb4ed70906217ab151f7f75593ed8908
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.