design-mastery

design-mastery is a plugin for Claude Code from HermeticOrmus/LibreUIUX-Claude-Code. Its manifest loads nothing; the 5 skills, 4 commands, 3 agents it bundles cost 625 tokens per session together, scanned A, original, MIT.

A set of guidance for visual and brand design, including typography, colour, layout, and design history. It also covers brand identity, style guides, and design audits.

In plain words
What is it for?
Use it to shape a brand identity, review an interface, or create a consistent visual style guide.
Why use it?
Design decisions can become inconsistent or hard to review when there is no shared visual reasoning. This add-on gives a structured way to assess and document those choices.

Plugin for Claude Code

Written for Claude Code: a Claude Code plugin manifest.

Good fit Use it to shape a brand identity, review an interface, or create a consistent visual style guide.

Compare 6 plugins from other repositories ↓
Install in Claude Code
/plugin marketplace add HermeticOrmus/LibreUIUX-Claude-Code
/plugin install design-mastery
Install

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.

Clone the repo
git clone --depth 1 https://github.com/HermeticOrmus/LibreUIUX-Claude-Code

Made for: Claude Code.

Wrote 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.

agentmods badge for design-mastery

README.md
[![agentmods](https://agentmods.dev/badge/plugins/hermeticormus/libreuiux-claude-code/design-mastery/github.svg)](https://agentmods.dev/plugins/hermeticormus/libreuiux-claude-code/design-mastery)
Your own site
<a href="https://agentmods.dev/plugins/hermeticormus/libreuiux-claude-code/design-mastery"><img src="https://agentmods.dev/badge/plugins/hermeticormus/libreuiux-claude-code/design-mastery/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.

agentmods 80×15 button for design-mastery

Your own site · 80×15
<a href="https://agentmods.dev/plugins/hermeticormus/libreuiux-claude-code/design-mastery"><img src="https://agentmods.dev/badge/plugins/hermeticormus/libreuiux-claude-code/design-mastery.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured The manifest loads nothing itself; its 5 skills, 4 commands, 3 agents cost 625 tokens a session between them.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

design-mastery 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 19d 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.

plugins/design-mastery/.claude-plugin/plugin.json · 33 lines

What it actually says

{
  "name": "design-mastery",
  "version": "1.1.0",
  "description": "Design principles, legendary designers, and historical movements applied to UI work, with agents and workflows for brand identity, design audits, style guides, and premium landing pages.",
  "author": {
    "name": "Diego Bodart",
    "url": "https://github.com/HermeticOrmus"
  },
  "homepage": "https://github.com/HermeticOrmus/LibreUIUX-Claude-Code",
  "repository": "https://github.com/HermeticOrmus/LibreUIUX-Claude-Code",
  "license": "MIT",
  "keywords": [
    "design",
    "ui-ux",
    "brand-identity",
    "design-systems",
    "typography",
    "color-theory",
    "visual-design",
    "design-principles",
    "saul-bass",
    "massimo-vignelli",
    "dieter-rams",
    "bauhaus",
    "swiss-design",
    "gestalt",
    "paula-scher",
    "paul-rand",
    "design-audit",
    "landing-page"
  ]
}
Files

What ships with it

1 file beside plugin.json in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

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.

  1. 19d ago Changed · -12 lines 6d6cee5620f3
  2. 1mo ago First seen · 45 lines scan A 7b0655fbe477

Subscribe to this mod's changes

design-mastery is a plugin published in the GitHub repository HermeticOrmus/LibreUIUX-Claude-Code (115 stars, last pushed 15d ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. 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 2026-09-03.

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