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.
/plugin marketplace add HermeticOrmus/design-mastery-claude-codenpx agentmods add plugins/hermeticormus/design-mastery-claude-code/design-masterygit clone --depth 1 https://github.com/HermeticOrmus/design-mastery-claude-codeWrote 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.
[](https://agentmods.dev/plugins/hermeticormus/design-mastery-claude-code/design-mastery)<a href="https://agentmods.dev/plugins/hermeticormus/design-mastery-claude-code/design-mastery"><img src="https://agentmods.dev/badge/plugins/hermeticormus/design-mastery-claude-code/design-mastery.svg" alt="Measured on agentmods" height="20"></a>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 yesterday.
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.
What it actually says
{
"name": "design-mastery",
"source": ".",
"description": "Master design through principles, legendary designers, and historical movements. Build professional brand identities with systematic workflows.",
"version": "1.0.0",
"author": {
"name": "Hermetic Ormus",
"url": "https://github.com/HermeticOrmus"
},
"homepage": "https://github.com/HermeticOrmus/design-mastery-claude-code",
"repository": "https://github.com/HermeticOrmus/design-mastery-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"
],
"category": "design",
"strict": false,
"commands": [
"./commands/brand-identity.md",
"./commands/design-audit.md",
"./commands/style-guide.md"
],
"agents": [
"./agents/design-master.md",
"./agents/brand-architect.md",
"./agents/visual-historian.md"
],
"skills": [
"./skills/design-principles",
"./skills/design-masters",
"./skills/design-movements",
"./skills/brand-systems"
]
}What it installs
The manifest is a name and a version. 4 skills travel with it, and installing the plugin installs all of them — 189 tokens a session between them. Each is measured on its own page, and each can be installed alone.
What ships with it
1 file beside marketplace.json#design-mastery 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.
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.
- yesterday First seen · 47 lines scan A 3bf7dd357aab
design-mastery is a plugin published in the GitHub repository HermeticOrmus/design-mastery-claude-code (11 stars, last pushed 3mo 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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