What is frontend-design?

A set of guidelines and tools for designing frontend interfaces with a deliberate visual style instead of relying on generic layouts. It helps you decide the interface's purpose, tone, distinctive quality, and technical constraints before coding.

Use it when planning and building interfaces in React, Vue, or plain HTML and CSS, especially when you need a distinctive visual treatment.

It gives frontend work a clear visual direction and helps avoid repetitive, template-like designs.

frontend-design — Skill for Claude Code and Codex by JansenAnalytics

Install

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.

Any agent

npx skills add JansenAnalytics/claudex --skill frontend-design

Clone the repo

git clone --depth 1 https://github.com/JansenAnalytics/claudex

Made for: Claude Code, Codex.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/jansenanalytics/claudex/frontend-design/github.svg)](https://agentmods.dev/skills/jansenanalytics/claudex/frontend-design)

Your own site

<a href="https://agentmods.dev/skills/jansenanalytics/claudex/frontend-design"><img src="https://agentmods.dev/badge/skills/jansenanalytics/claudex/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/jansenanalytics/claudex/frontend-design"><img src="https://agentmods.dev/badge/skills/jansenanalytics/claudex/frontend-design.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 26 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 2,459 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

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	$0.00026	$0.02459
Opus 5.5	$0.00010	$0.00984
Sonnet 5.5	$0.00005	$0.00492
Haiku 4.5	$0.00003	$0.00246

Measured 2mo ago against content hash 8411a93450b3, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

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 2mo 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.

skills/frontend-design/SKILL.md · 222 lines

How it starts

The opening of the file, as written. The whole thing — 222 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Frontend Design Skill

Based on Anthropic's Frontend Aesthetics research. Adapted for OpenClaw with practical tooling additions.

Core Principle

You tend toward generic, "on distribution" output. In frontend design, this creates "AI slop": white backgrounds, purple gradients, Inter font, predictable card layouts. Fight this instinct. Every frontend should feel like a human designer made deliberate, bold choices.

Design Thinking (BEFORE writing any code)

Before coding, commit to a clear aesthetic direction:

Purpose: What problem does this interface solve? Who uses it?
Tone: Pick a BOLD direction — don't hedge:
- Brutally minimal / Swiss design
- Maximalist chaos / Memphis Group
- Retro-futuristic / Cyberpunk
- Organic / Natural / Earthy
- Luxury / Refined / Editorial
- Playful / Toy-like / Rounded
- Industrial / Utilitarian / Terminal
- Art Deco / Geometric
- Soft / Pastel / Dreamy
- Dark mode / Moody / Cinematic
- Japanese / Scandinavian minimalism
- Newspaper / Magazine editorial
- Brutalist / Raw HTML energy
Differentiation: What's the ONE thing someone will remember about this?
Constraints: Framework (React/Vue/vanilla), performance, accessibility needs

Write down your aesthetic direction before coding. This prevents drift back to defaults.

Typography

NEVER use: Inter, Roboto, Arial, system-ui, system fonts, or any default sans-serif.

DO use: Distinctive, characterful fonts from Google Fonts. Pair a display font with a body font:

Display (headings)	Body (text)	Vibe
Syne	DM Sans	Modern tech
Playfair Display	Source Serif Pro	Editorial luxury
Archivo Black	Work Sans	Bold industrial
Fraunces	Outfit	Organic warmth
Instrument Serif	Instrument Sans	Refined minimal
Space Mono	Karla	Terminal/hacker
Unbounded	Figtree	Playful modern
Cormorant Garamond	Lato	Classic elegance
Bebas Neue	Barlow	Poster/display
JetBrains Mono	IBM Plex Sans	Developer tools

Read the full file on GitHub · 222 lines

Changes

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.

2mo ago First seen · 222 lines · 26 tokens per session scan A 8411a93450b3

Subscribe to this mod's changes

frontend-design is a skill published in the GitHub repository JansenAnalytics/claudex (5 stars, last pushed 4mo ago), licensed MIT. It adds 26 tokens to every session and 2,459 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.

CSS and styling Design and UX Frontend aesthetics css design-direction typography ui-design

frontend-design next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
frontend-designJansenAnalytics/claudex	Skill	5	4mo ago	MIT	A	26	Claude Code, Codex
absolute-uimaddhruv/absolute	Skill	223	4mo ago	MIT	A	121	Claude Code
popular-web-designsNousResearch/hermes-agent	Skill	261k	today	MIT	A	23	Claude Code, Codex
designlang-tokensManavarya09/design-extract	Skill	4.8k	2d ago	MIT	A	30	Claude Code
hero-slider-settleUnclecheng-li/AI_Animation	Skill	1.7k	11d ago	MIT	A	0	Claude Code, Codex
setting-up-charcoal-tailwindpixiv/charcoal	Skill	377	yesterday	Apache-2.0	A	63	Claude Code, Codex
setting-up-charcoal-styledpixiv/charcoal	Skill	377	yesterday	Apache-2.0	A	46	Claude Code, Codex