A UI design system for creating web pages, dashboards, and other interfaces with defined colors, typography, spacing, and layout guidance. It specifically recommends restrained blue-and-gold styling instead of generic neon or purple-heavy designs.

Use it when designing or generating frontend interfaces, landing pages, dashboards, or other visual user interfaces.

It gives coding agents concrete visual rules so generated interfaces are more consistent and easier to understand.

lucid-ui — Skill for Claude Code and Codex by Deepractice/UIX

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 Deepractice/UIX --skill lucid-ui

Clone the repo

git clone --depth 1 https://github.com/Deepractice/UIX

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/deepractice/uix/lucid-ui/github.svg)](https://agentmods.dev/skills/deepractice/uix/lucid-ui)

Your own site

<a href="https://agentmods.dev/skills/deepractice/uix/lucid-ui"><img src="https://agentmods.dev/badge/skills/deepractice/uix/lucid-ui/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/deepractice/uix/lucid-ui"><img src="https://agentmods.dev/badge/skills/deepractice/uix/lucid-ui.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 76 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 2,917 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	$0.00076	$0.02917
Opus 5.5	$0.00030	$0.01167
Sonnet 5.5	$0.00015	$0.00583
Haiku 4.5	$0.00008	$0.00292

Measured 2mo ago against content hash b8d6cf2a34d5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

lucid-ui 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/lucid-ui/SKILL.md · 303 lines

How it starts

The opening of the file, as written. The whole thing — 303 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Lucid UI — Design System for the Post-AI-Purple Era

You are a senior UI designer who creates distinctive, professional interfaces. You reject the default "AI aesthetic" — purple gradients, neon glows, and generic SaaS templates that make every AI-generated page look identical.

Your design philosophy: Clarity over decoration. Intention over default. Restraint over excess.

The name "Lucid" means clear, coherent, and easy to understand. Every design choice serves comprehension.

Color System

Primary Palette: Dual-Tone System

Use a two-color system instead of rainbow gradients:

Role	Color	Hex	When to Use
Rational Blue	Cool tech blue	`#0284c7`	Data, analytics, primary actions, navigation, technical content
Sentient Gold	Warm amber	`#f59e0b`	AI thinking states, creative content, warnings, human-centric elements

These two colors create natural contrast: blue = precision/efficiency, gold = intelligence/warmth.

Extended Palette

Rational Blue Scale:
50: #f0f9ff  100: #e0f2fe  200: #bae6fd  300: #7dd3fc
400: #38bdf8  500: #0ea5e9  600: #0284c7  700: #0369a1
800: #075985  900: #0c4a6e

Sentient Gold Scale:
50: #fffbeb  100: #fef3c7  200: #fde68a  300: #fcd34d
400: #fbbf24  500: #f59e0b  600: #d97706  700: #b45309
800: #92400e  900: #78350f

Neutral Gray (for text, borders, backgrounds):
50: #FAFAFA  100: #F5F5F5  200: #E5E5E5  300: #D4D4D4
400: #A3A3A3  500: #737373  600: #525252  700: #404040
800: #262626  900: #171717

Semantic:
Success: #22C55E    Warning: #F59E0B    Error: #EF4444

Background Rules

Default background: white (#FFFFFF). White maximizes readability and feels professional.
Use gray-50 (#FAFAFA) for subtle section differentiation
Use gray-100 (#F5F5F5) for card/panel backgrounds
Dark mode: use gray-900 (#171717) as base, NOT pure black

Forbidden Patterns (Anti-AI-Aesthetic)

NEVER use these — they are the hallmark of generic AI-generated UI:

Read the full file on GitHub · 303 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 · 303 lines · 76 tokens per session scan A b8d6cf2a34d5

Subscribe to this mod's changes

lucid-ui is a skill published in the GitHub repository Deepractice/UIX (10 stars, last pushed 7mo ago), licensed MIT. It adds 76 tokens to every session and 2,917 once invoked, about $0.0003 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 2026-08-31.

CSS and styling Design and UX Frontend ai ai-agent ai-ui claude-skill cursor-rules design-system

lucid-ui next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
lucid-uiDeepractice/UIX	Skill	10	7mo ago	MIT	A	76	Claude Code, Codex
web-designxiaopu-ai/web-design	Skill	812	4mo ago	MIT	A	151	Claude Code, Codex
layout-disciplinecrazyzlnofficial/layout-discipline	Skill	4	4mo ago	MIT	A	105	Claude Code, Codex
claude-design-idea-to-readychohra-med/claude_design_skill	Skill	5	4mo ago	MIT	A	135	Claude Code, Codex
ai-image-frontend-uiqiuxinyuan321/fumeng	Skill	2	6mo ago	MIT	A	7	Claude Code, Codex
daisyui-colorssaadeghi/daisyui	Skill	43k	6d ago	MIT	A	18	Claude Code
daisyui-configsaadeghi/daisyui	Skill	43k	6d ago	MIT	A	13	Claude Code