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 HoangNguyen0403/agent-skills-standard --skill skill-snapshotgit clone --depth 1 https://github.com/HoangNguyen0403/agent-skills-standardWrote 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/hoangnguyen0403/agent-skills-standard/skill-snapshot)<a href="https://agentmods.dev/skills/hoangnguyen0403/agent-skills-standard/skill-snapshot"><img src="https://agentmods.dev/badge/skills/hoangnguyen0403/agent-skills-standard/skill-snapshot/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/hoangnguyen0403/agent-skills-standard/skill-snapshot"><img src="https://agentmods.dev/badge/skills/hoangnguyen0403/agent-skills-standard/skill-snapshot.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 | $0.00047 | $0.00732 |
| Opus 5.5 | $0.00019 | $0.00293 |
| Sonnet 5.5 | $0.00009 | $0.00146 |
| Haiku 4.5 | $0.00005 | $0.00073 |
Grade A, and why
common-ui-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 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.
This is a copy
100% identical to common-ui-design — 64 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 84 lines — stays where its author put it; the contents beside it link to each section on GitHub.
UI Design Direction
Priority: P0 (CRITICAL)
Before writing any code, commit to deliberate aesthetic direction.
Phase 0: Design Thinking (Mandatory Pre-Code)
Answer these before touching implementation:
- Purpose: What problem this UI solve? Who uses it?
- Tone: Pick one extreme and commit — brutally minimal | maximalist | retro-futuristic | editorial/magazine | luxury/refined | brutalist/raw | playful/toy-like | organic/natural | art deco | industrial/utilitarian
- Differentiation: Name one thing user will remember about this interface.
Bold maximalism and refined minimalism both work — intentionality, not intensity, key.
Aesthetic Dimensions
Typography
- Pair distinctive display font + refined body font; never default to system fonts.
- Self-host via
next/font,@font-face, or Google Fonts API — never CDN<link>in production. - See Font Pairing & Tone Examples
Color & Theme
- Dominant color + sharp accent > timid, evenly-distributed palettes.
- Use CSS custom properties (
--color-primary,--color-accent) for consistency. - Commit: dark or light — don't default to light because it feels "safe".
Motion
- One well-orchestrated entrance (staggered reveals,
animation-delay) > scattered micro-interactions. - CSS-first:
@keyframes,transition,animation-delay; React: Motion library for complex sequences. - See Motion Patterns
Spatial Composition
- Break grid intentionally: asymmetry, overlap, diagonal flow, grid-breaking elements.
- Generous negative space OR controlled density — never accidental middleground.
Backgrounds & Depth
- Create atmosphere: gradient meshes, noise textures, layered transparencies, grain overlays.
- Dramatic shadows and decorative borders should match chosen tone.
- Solid white/gray backgrounds = missed creative opportunity.
Anti-Patterns
- No generic font defaults: Inter/Roboto/Arial/system-ui produce forgettable UIs; choose characterful fonts.
- No purple-gradient-on-white: Most overused AI aesthetic; commit to something context-specific.
- No scattered animations: One orchestrated entrance beats ten random hover effects.
- No accidental layouts: Every spacing and positioning decision must serve aesthetic intent.
- No same aesthetic twice: Vary light/dark, font style, tone — never converge on single style.
What ships with it
16 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.
- common-stitch-design/evals/evals.json 7.6 KB
- common-stitch-design/references/design-md.md 1.6 KB
- common-stitch-design/references/prompting.md 1.3 KB
- common-stitch-design/references/stitch-mcp.md 5.8 KB
- common-stitch-design/scripts/audit_html.js 11 KB runs code
- common-stitch-design/scripts/audit_html.test.js 9.3 KB runs code
- common-stitch-design/SKILL.md 3.7 KB
- common-ui-design/evals/evals.json 2.6 KB
- common-ui-design/references/motion.md 1.9 KB
- common-ui-design/references/tones.md 2.4 KB
- common-ui-design/SKILL.md 3.3 KB
- evals/evals.json 2.6 KB
- references/motion.md 1.9 KB
- references/tones.md 2.4 KB
- workflows/create-stitch-design.md 2.9 KB
- workflows/review-stitch-design.md 3.3 KB
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 · 84 lines · 47 tokens per session scan A 309c229e2d47
common-ui-design is a skill published in the GitHub repository HoangNguyen0403/agent-skills-standard (582 stars, last pushed today), licensed MIT. It adds 47 tokens to every session and 732 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to common-ui-design, differing in 64 lines, and is treated as a copy.
Other skills, from other repositories
frontend-design
Generates distinctive, production-grade frontend interfaces and artifacts (React, Vue, HTML/CSS). Prioritizes bold aesthetics, unique typography, and motion to avoid generic designs. Use when building websites, landing pages, dashboards, posters, or when the user requests to style, beautify, or create visually…
design
Design workflow that creates design systems, DESIGN.md, and design tokens with anti-pattern enforcement and accessibility checks.
oma-design
Define or review a visual system, DESIGN.md, or redesign direction. Use for typography, layout, color, motion, and interaction design decisions.
frontend-design
Create distinctive, production-grade frontend interfaces with high design quality. Use this skill when the user asks to build web components, pages, artifacts, posters, or applications (examples include websites, landing pages, dashboards, React components, HTML/CSS layouts, or when styling/beautifying any web UI).…
design-system
Design system consistency checks and token guidance for Mantine-based UI.
modern-site-engineering
Integrate systems after frontend direction.