design-principles SKILL.md skillA

design-principles from hermeticormus/design-mastery-claude-code is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add hermeticormus/design-mastery-claude-code/design-principles@git:20260930.62e5f6a

Pins git:20260930.62e5f6a in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
hermeticormus/design-mastery-claude-code
Path
skills/design-principles/SKILL.md
Versions recorded
4
Latest version
git:20260930.1a0f9f7, committed Sep 30, 2026
First version recorded
Dec 6, 2025
Size
7,915 bytes
Repository stars
19
License
MIT

Core visual design principles (visual hierarchy, Gestalt grouping, composition, balance, contrast, white space, color, typography) with UI fixes, a checklist, and deep-dive references. Use when making or defending a layout, type, or color decision, or when a design feels off and you need to name why.

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 Principles

The fundamental laws governing visual perception and communication. These principles are not opinions—they're observations about how human vision and cognition work.

## When to Use This Skill

- Making visual design decisions
- Evaluating whether a design "works"
- Explaining why something feels off
- Teaching design fundamentals
- Debugging design problems

## Core Principles

### 1. Visual Hierarchy

**The Law**: Not all elements are equally important. Design must guide the eye.

**Establishing Hierarchy**:

| Tool | What It Does | Example |
|------|--------------|---------|
| Scale | Larger = more important | Hero headlines vs. body text |
| Weight | Heavier = more important | Bold headings vs. light body |
| Color | Saturated/contrasting = attention | Primary CTA vs. secondary |
| Position | Top-left (in LTR) = first seen | Logo placement |
| Space | More space = more importance | Generous padding around CTAs |
| Depth | Shadows/elevation = prominence | Floating action buttons |

**Testing Hierarchy**:
Blur the design at 50%. Can you still identify:
- The primary focal point?
- The secondary information?
- The action you should take?
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add hermeticormus/design-mastery-claude-code/design-principles@sha256:9167222fea5d1b1a

The line at the top of this page pins the label git:20260930.62e5f6a, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_vs3piwsav76pzt3q.svg)](https://markdownregistry.com/a/art_vs3piwsav76pzt3q)

4 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 4 versions of this file, between Dec 6, 2025 and Sep 30, 2026, about one every 99 days.

versioncommittedcommitsizeaudit
git:20260930.1a0f9f7 latest2026-09-30 1a0f9f7 7,915 BA view · diff
git:20260930.62e5f6a2026-09-30 62e5f6a 7,834 BA view · diff
git:20260930.88100392026-09-30 8810039 8,183 BA view · diff
git:20251206.14962b62025-12-06 14962b6 7,775 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (7915 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

GitHub

hermeticormus/design-mastery-claude-code · 19 stars · license MIT · pushed 2026-10-04 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_vs3piwsav76pzt3q
GET https://markdownregistry.com/api/v1/resolve?ref=hermeticormus/design-mastery-claude-code/design-principles
GET https://markdownregistry.com/api/v1/blob/9167222fea5d1b1a697b7ff647245c8dd3ab0252a1e9bf8056e3ba537b54caff

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.

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