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 ngocsangyem/MeowKit --skill frontend-designgit clone --depth 1 https://github.com/ngocsangyem/MeowKitWrote 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/ngocsangyem/meowkit/frontend-design)<a href="https://agentmods.dev/skills/ngocsangyem/meowkit/frontend-design"><img src="https://agentmods.dev/badge/skills/ngocsangyem/meowkit/frontend-design/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/ngocsangyem/meowkit/frontend-design"><img src="https://agentmods.dev/badge/skills/ngocsangyem/meowkit/frontend-design.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 | $0.00035 | $0.01790 |
| Opus 5.5 | $0.00014 | $0.00716 |
| Sonnet 5.5 | $0.00007 | $0.00358 |
| Haiku 4.5 | $0.00003 | $0.00179 |
Grade A, and why
mk:frontend-design 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 1mo 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 — 129 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Frontend Design
Production-grade UI/UX design with anti-AI-slop enforcement. Covers aesthetics, accessibility, typography, color, motion, responsive, and design tokens.
When to Use
Auto-activate on: Design tasks, UI component styling, "make it look good", "improve the design", "fix the UI", "design review", design system work, CSS/styling changes
Explicit: /mk:frontend-design [concern]
Do NOT invoke for: Vue patterns (use mk:vue), TypeScript (use mk:typescript), backend code, API integration
Workflow Integration
Operates in Phase 3 (Build GREEN) and Phase 4 (Review) for design quality checks. Output supports the developer agent (Phase 3) or reviewer agent (Phase 4).
Process
- Analyze — detect task type (new component, redesign, review, responsive fix), load relevant design rules from
references/design-rules.md - Implement — apply typography, color, spacing, motion per rules. Run anti-slop check (see checklist below). Ensure WCAG 2.1 AA accessibility.
- Verify — run pre-delivery checklist before presenting to user
Anti-AI-Slop Checklist (MANDATORY before delivery)
Every design output MUST pass these checks:
| Category | Anti-Pattern (NEVER) | Do Instead |
|---|---|---|
| Typography | System font stack only, single weight | 2-3 weights, intentional font pairing (use mk:ui-design-system/assets/typography.csv) |
| Typography | All text same size/weight | Clear hierarchy: display → heading → body → caption |
| Typography | Unexamined default font choice | Choose a typeface that matches project mood and legibility needs |
| Color | Unchecked extreme contrast | Verify readable contrast and deliberate palette balance |
| Color | Rainbow of unrelated colors | 1 primary + 1 accent + neutrals (use mk:ui-design-system/assets/colors.csv) |
| Color | Decorative treatment that obscures hierarchy | Use color and gradients only when they reinforce the content hierarchy |
| Layout | Centered everything, card grid with equal spacing | Asymmetric layouts, intentional whitespace variation |
| Layout | Default padding/margin everywhere | Design tokens: consistent spacing scale (4px base) |
| Layout | 3-column equal card grid | Vary card sizes, use bento grid, or 2-column with feature highlight |
| Content | "Lorem ipsum" in final delivery | Real or realistic content |
| Content | "John Doe", "[email protected]" placeholders | Diverse, realistic names and data |
| Effects | Gratuitous shadows, gradients, blur | Subtle shadows (0 1px 3px), purposeful gradients |
| Effects | Parallax on every section | Reserve motion for hero or key CTA; respect prefers-reduced-motion |
| Components | Default browser inputs/buttons | Styled components with clear states (hover, focus, disabled) |
| Components | Unstyled select/checkbox/radio | Custom-styled form controls with accessibility preserved |
| Icons | Emoji as functional icons | SVG icons from consistent library (Lucide, Heroicons, Phosphor) |
| Images | Stock photo hero banners | Custom illustrations, product screenshots, or abstract art |
| Performance | Unoptimized images, layout shift | Next-gen formats (WebP/AVIF), explicit dimensions, skeleton loaders |
| Dark Mode | Just invert colors | Separate dark palette with reduced brightness, maintain contrast ratios |
What ships with it
2 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.
- 1mo ago First seen · 129 lines · 35 tokens per session scan A 3868dbe3ac07
mk:frontend-design is a skill published in the GitHub repository ngocsangyem/MeowKit (15 stars, last pushed 2mo ago), licensed MIT. It adds 35 tokens to every session and 1,790 once invoked, about $0.0001 per session on Opus 5.5. 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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