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 Deibler/universal-design-principlesnpx agentmods add plugins/deibler/universal-design-principles/cognition-and-learnability-principlesgit clone --depth 1 https://github.com/Deibler/universal-design-principlesWrote 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/deibler/universal-design-principles/cognition-and-learnability-principles)<a href="https://agentmods.dev/plugins/deibler/universal-design-principles/cognition-and-learnability-principles"><img src="https://agentmods.dev/badge/plugins/deibler/universal-design-principles/cognition-and-learnability-principles.svg" alt="Measured on agentmods" height="20"></a>Grade A, and why
cognition-and-learnability-principles 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 5d 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.
The source is not reproduced here
A licence we could not identify
The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.
What it installs
The manifest is a name and a version. 33 skills travel with it, and installing the plugin installs all of them — 3,611 tokens a session between them. Each is measured on its own page, and each can be installed alone.
- Skill progressive-disclosure A 158 tokens
- Skill wayfinding A 155 tokens
- Skill 80-20-rule A 148 tokens
- Skill chunking A 115 tokens
- Skill consistency A 107 tokens
- Skill consistency-external A 103 tokens
- Skill consistency-internal A 105 tokens
- Skill hicks-law A 137 tokens
- Skill iconic-arbitrary-and-symbolic A 116 tokens
- Skill iconic-representation A 117 tokens
- Skill mental-model A 120 tokens
- Skill mimicry A 125 tokens
- Skill recognition-over-recall A 131 tokens
- Skill hicks-law-defaults A 130 tokens
- Skill hicks-law-pricing A 123 tokens
- Skill iconic-resemblance A 103 tokens
- Skill mimicry-behavioral A 106 tokens
- Skill mimicry-surface A 117 tokens
- Skill progressive-disclosure-defaults-and-tucking A 89 tokens
- Skill progressive-disclosure-disclosure-affordances A 100 tokens
- Skill wayfinding-breadcrumbs-and-context A 99 tokens
- Skill wayfinding-search-and-recovery A 97 tokens
- Skill chunking-numeric-and-otp A 81 tokens
- Skill mental-model-system-vs-interaction A 83 tokens
- Skill wayfinding-physical-spatial-metaphors A 112 tokens
- Skill 80-20-feature-prioritization A 83 tokens
- Skill 80-20-redesign-targeting A 82 tokens
- Skill chunking-form-grouping A 88 tokens
- Skill cognition-router A 130 tokens
- Skill hicks-law-menus A 94 tokens
- Skill mental-model-mismatch-and-onboarding A 88 tokens
- Skill recognition-pickers-and-palettes A 89 tokens
- Skill recognition-recents-and-suggestions A 80 tokens
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.
- 5d ago First seen · 29 lines scan A 40455fcf248d
cognition-and-learnability-principles is a plugin published in the GitHub repository Deibler/universal-design-principles (8 stars, last pushed 4mo ago), with no licence file. 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 2026-08-31.
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