minimalist-ui

A user-interface design guide for clean, editorial-style pages. It specifies warm monochrome colors, strong typographic contrast, generous spacing, flat grid layouts, and muted pastel accents.

In plain words
What is it for?
Use it when designing or implementing a restrained document-style web interface with a bento grid, carefully chosen typography, minimal shadows, and muted colors.
Why use it?
It gives an agent concrete visual rules and limits, reducing generic interface choices such as heavy shadows, common fonts, gradients, or large brightly colored sections.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/modelstudioai/openagentpack/minimalist-ui
Any agent
npx skills add modelstudioai/OpenAgentPack --skill minimalist-ui
Clone the repo
git clone --depth 1 https://github.com/modelstudioai/OpenAgentPack

Made for: Claude Code, Codex.

Per session 34 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,004 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 100% copy Near-identical to another mod 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.

ModelPer sessionOnce invoked
Fable 5 $0.00034 $0.02004
Opus 5 $0.00017 $0.01002
Sonnet 5 $0.00007 $0.00401
Haiku 4.5 $0.00003 $0.00200

Measured yesterday against content hash 36bc7328f085, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

minimalist-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 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.

Origin

This is a copy

100% identical to minimalist-ui — 0 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.

apps/webui/.agents/skills/minimalist-ui/SKILL.md · 86 lines

How it starts

The opening of the file, as written. The whole thing — 86 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Protocol: Premium Utilitarian Minimalism UI Architect

1. Protocol Overview

Name: Premium Utilitarian Minimalism & Editorial UI Description: An advanced frontend engineering directive for generating highly refined, ultra-minimalist, "document-style" web interfaces analogous to top-tier workspace platforms. This protocol strictly enforces a high-contrast warm monochrome palette, bespoke typographic hierarchies, meticulous structural macro-whitespace, bento-grid layouts, and an ultra-flat component architecture with deliberate muted pastel accents. It actively rejects standard generic SaaS design trends.

2. Absolute Negative Constraints (Banned Elements)

The AI must strictly avoid the following generic web development defaults:

  • DO NOT use the "Inter", "Roboto", or "Open Sans" typefaces.
  • DO NOT use generic, thin-line icon libraries like "Lucide", "Feather", or standard "Heroicons".
  • DO NOT use Tailwind's default heavy drop shadows (e.g., shadow-md, shadow-lg, shadow-xl). Shadows must be practically non-existent or heavily customized to be ultra-diffuse and low opacity (< 0.05).
  • DO NOT use primary colored backgrounds for large elements or sections (e.g., no bright blue, green, or red hero sections).
  • DO NOT use gradients, neon colors, or 3D glassmorphism (beyond subtle navbar blurs).
  • DO NOT use rounded-full (pill shapes) for large containers, cards, or primary buttons.
  • DO NOT use emojis anywhere in code, markup, text content, headings, or alt text. Replace with proper icons or clean SVG primitives.
  • DO NOT use generic placeholder names like "John Doe", "Acme Corp", or "Lorem Ipsum". Use realistic, contextual content.
  • DO NOT use AI copywriting clichés: "Elevate", "Seamless", "Unleash", "Next-Gen", "Game-changer", "Delve". Write plain, specific language.

3. Typographic Architecture

The interface must rely on extreme typographic contrast and premium font selection to establish an editorial feel.

  • Primary Sans-Serif (Body, UI, Buttons): Use clean, geometric, or system-native fonts with character. Target: font-family: 'SF Pro Display', 'Geist Sans', 'Helvetica Neue', 'Switzer', sans-serif.
  • Editorial Serif (Hero Headings & Quotes): Target: font-family: 'Lyon Text', 'Newsreader', 'Playfair Display', 'Instrument Serif', serif. Apply tight tracking (letter-spacing: -0.02em to -0.04em) and tight line-height (1.1).
  • Monospace (Code, Keystrokes, Meta-data): Target: font-family: 'Geist Mono', 'SF Mono', 'JetBrains Mono', monospace.
  • Text Colors: Body text must never be absolute black (#000000). Use off-black/charcoal (#111111 or #2F3437) with a generous line-height of 1.6 for legibility. Secondary text should be muted gray (#787774).

Read the full file on GitHub · 86 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.

  1. yesterday First seen · 86 lines · 34 tokens per session scan A 36bc7328f085

Subscribe to this mod's changes

minimalist-ui is a skill published in the GitHub repository modelstudioai/OpenAgentPack (23 stars, last pushed 5d ago), licensed Apache-2.0. It adds 34 tokens to every session and 2,004 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to minimalist-ui, differing in 0 lines, and is treated as a copy.

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