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.
npx skills add terrene-foundation/kailash-coc-claude-py --skill 23-uiux-design-principlesgit clone --depth 1 https://github.com/terrene-foundation/kailash-coc-claude-pyWrote 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/skills/terrene-foundation/kailash-coc-claude-py/23-uiux-design-principles)<a href="https://agentmods.dev/skills/terrene-foundation/kailash-coc-claude-py/23-uiux-design-principles"><img src="https://agentmods.dev/badge/skills/terrene-foundation/kailash-coc-claude-py/23-uiux-design-principles/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.
<a href="https://agentmods.dev/skills/terrene-foundation/kailash-coc-claude-py/23-uiux-design-principles"><img src="https://agentmods.dev/badge/skills/terrene-foundation/kailash-coc-claude-py/23-uiux-design-principles.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00024 | $0.01206 |
| Opus 5 | $0.00012 | $0.00603 |
| Sonnet 5 | $0.00005 | $0.00241 |
| Haiku 4.5 | $0.00002 | $0.00121 |
Grade A, and why
uiux-design-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 8d 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.
How it starts
The opening of the file, as written. The whole thing — 143 lines — stays where its author put it; the contents beside it link to each section on GitHub.
UI/UX Design Principles
Framework-agnostic design principles and patterns for building professional enterprise applications. This skill is CRITICAL for all frontend work and should be invoked proactively before any UI implementation.
Overview
This skill provides:
- Top-down design methodology (layout → features → components → details)
- Layout and information architecture patterns
- Visual hierarchy principles (F-pattern, Z-pattern, inverted pyramid)
- Enterprise UX patterns (action hierarchy, search & filter, bulk actions)
- Component design guidelines (cards, buttons, empty states, loading states)
- Responsive design patterns for all breakpoints
- Accessibility standards (WCAG 2.1 AA compliance)
- Design system principles and naming conventions
- Common pitfalls and solutions
Reference Documentation
Core Principles
- design-principles - Complete UI/UX design principles and guidelines
- Top-down design methodology
- Layout & information architecture
- Visual hierarchy principles
- Enterprise UX patterns
- Component design guidelines
- Responsive design patterns
- Accessibility standards
- Design system principles
- Common pitfalls & solutions
Motion Design
- motion-design - Animation timing, easing curves, and motion patterns
- Timing reference (50ms-800ms+ by interaction type)
- Modern easing curves (CSS + Flutter)
- Animation categories (entrance, micro-interaction, state, loading, page)
- GPU-accelerated properties checklist
prefers-reduced-motionaccessibility (mandatory)- Motion anti-patterns and decision framework
Production Hardening
- production-hardening - Frontend production hardening checklist
- Text & content resilience (overflow, length extremes, dynamic content)
- Internationalization (text expansion, formatting, encoding)
- Error states & recovery (network, HTTP status, form errors)
- Edge cases & boundary conditions (empty, loading, data volume, concurrency)
- Accessibility resilience (zoom, keyboard, screen reader, touch)
- Performance under stress (lazy loading, virtual scrolling, debouncing)
What ships with it
4 files beside SKILL.md 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.
- 8d ago First seen · 143 lines · 24 tokens per session scan A ca046789bafa
uiux-design-principles is a skill published in the GitHub repository terrene-foundation/kailash-coc-claude-py (12 stars, last pushed 24d ago), licensed Apache-2.0. It adds 24 tokens to every session and 1,206 once invoked, about $0.0001 per session on Opus 5. 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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