Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/nguyenthienthanh/aura-frognpx agentmods add skills/nguyenthienthanh/aura-frog/design-expertWrote 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/nguyenthienthanh/aura-frog/design-expert)<a href="https://agentmods.dev/skills/nguyenthienthanh/aura-frog/design-expert"><img src="https://agentmods.dev/badge/skills/nguyenthienthanh/aura-frog/design-expert/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/nguyenthienthanh/aura-frog/design-expert"><img src="https://agentmods.dev/badge/skills/nguyenthienthanh/aura-frog/design-expert.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00809 |
| Opus 5 | $0.00017 | $0.00404 |
| Sonnet 5 | $0.00007 | $0.00162 |
| Haiku 4.5 | $0.00003 | $0.00081 |
Grade A, and why
design-expert 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 10d 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 — 85 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AI-consumed reference. Optimized for Claude to read during execution. Human-readable explanation: see docs/architecture/HIERARCHICAL_PLANNING.md or docs/getting-started/ depending on topic.
Design Expert
When to Use
Component design, design system selection/setup, responsive layouts, Figma analysis.
Read the design SoT first. If .claude/design/design-system.md exists, it is the project's committed
design system — honor its library / palette / type choices instead of re-recommending. Only run the selection
logic below when no SoT file exists yet (then persist the choice — see rules/agent/design-system-persistence.md).
Principles
principles[4]{principle}:
Atomic design: Atoms → Molecules → Organisms → Templates → Pages
Mobile-first: design for smallest then enhance
Design tokens: colors/spacing/typography as variables not magic values
Consistency: one library per project — don't mix
Design System Selection
selection[4]{use_case,recommendation}:
Enterprise,"Ant Design, MUI, Mantine"
Modern Web,"Tailwind + shadcn/ui"
Mobile (RN),NativeWind
Prototyping,"Bootstrap, Tailwind"
Auto-Detection
Detect from package.json: @mui/material → MUI, antd → Ant Design, tailwindcss → Tailwind, @chakra-ui/react → Chakra, nativewind → NativeWind, @mantine/core → Mantine.
Implementation
Use Context7 for current library docs. Add "use context7" to fetch version-specific API.
Responsive Breakpoints
Mobile: <768px | Tablet: 768-1024px | Desktop: >1024px
Figma sync discipline
The installed figma MCP is figma-developer-mcp (Framelink) — it exposes get_figma_data
(layout + styles + text + component tree) and download_figma_images. It does not expose the
Dev-Mode-MCP tools get_variable_defs / get_code_connect_map — don't call those; they error on this server.
Treat Figma as a source, not a regenerator:
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.
- 10d ago First seen · 85 lines · 35 tokens per session scan A 38dd54e0d8ed
design-expert is a skill published in the GitHub repository nguyenthienthanh/aura-frog (24 stars, last pushed 6d ago), licensed MIT. It adds 35 tokens to every session and 809 once invoked, about $0.0002 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 2026-08-30.
Other skills, from other repositories
gsd-sketch
Sketch UI/design ideas with throwaway HTML mockups, or propose what to sketch next (frontier mode).
gsd-ui-phase
Generate UI design contract (UI-SPEC.md) for frontend phases.
gsd-ui-review
Retroactive 6-pillar visual audit of implemented frontend code.
userinterface-wiki
UI/UX best practices for web interfaces. Use when reviewing animations, CSS, audio, typography, UX patterns, prefetching, or icon implementations. Covers 11 categories from animation principles to typography. Outputs file:line findings.
team-ui
Orchestrate the UI team through the full UX pipeline: from UX spec authoring through visual design, implementation, review, and polish. Integrates with /ux-design, /ux-review, and studio UX templates.
ring:validating-ux-completeness
Validating that UX specifications are complete before technical design: a read-only checklist over wireframes, states, responsive behavior, accessibility, and component-library alignment, emitting a DESIGN VALIDATED / NEEDS REVISION verdict to design-validation.md. Standalone utility — run after a product-designer…