Less Is More UI Agent Skill Developer Mendiak released less-is-more-ui, an open-source design skill that installs via `npx skills add Mendiak/less-is-more-ui` or `npm install @mendiak/less-is-more-ui` to constrain AI coding agents toward minimalist web interfaces. The package bundles tokens.css (modular typographic scale, spacing system, neutral palette, dark/light theme support), reset.css, and components.css with reusable patterns such as .button, .input, .essential-card and .essential-nav, alongside agent instruction files including SKILL.md and docs/principles.md. The accompanying Museum of the Essential showcase demonstrates the rules with six designer profiles, eight case studies comparing noisy and essential versions of the same pattern, a 12-column grid and an 8px baseline. "Good design is as little design as possible." — Dieter Rams A specialized design skill for AI agents to generate calm, high-quality, and functional web interfaces. Most AI-generated UIs suffer from "visual noise": excessive shadows, generic gradients, and cluttered layouts. They often lack a clear typographic hierarchy and rational structure because LLMs tend to default to "over-designed" or generic components. less-is-more-ui provides a set of modernist constraints that force the agent to prioritize content and function. It transforms the agent from a generic coder into a senior designer with a Miesian perspective, focusing on: - Rational Layouts: Using grid systems and generous whitespace instead of decorative containers. - Typography-First Hierarchy: Letting text carry the weight of the interface. - Subtle Palettes: Using color to support, not dominate. - Systematic Spacing: A predefined variable-based scale for consistent rhythm. npx skills add Mendiak/less-is-more-ui Installs design tokens, a minimalist reset, and reusable component patterns. npm install @mendiak/less-is-more-ui Then in your project's CSS: / Import everything tokens + reset + components / @import "@mendiak/less-is-more-ui"; / Or import only what you need / @import "@mendiak/less-is-more-ui/references/tokens.css"; @import "@mendiak/less-is-more-ui/assets/css/reset.css"; @import "@mendiak/less-is-more-ui/assets/css/components.css"; What's included: | File | Description | |---|---| | tokens.css | CSS custom properties: modular typographic scale, spacing system, neutral palette, semantic aliases var --ui-bg , var --ui-text , etc. , and dark/light theme support | | reset.css | Minimalist box-sizing reset and base element normalization | | components.css | Reusable UI patterns: .button , .input , .essential-card , .essential-nav , .essential-filters , .essential-specs , .essential-form , .icon , and utility classes | | style.css | Demo only Styles for the Museum of the Essential https://mendiak.github.io/less-is-more-ui/ showcase page. Not intended for external projects. | Once activated, you can direct your agent with high-level design intent. The agent will use the bundled resources principles.md , references/grid.md , references/components.md , etc. to make informed decisions. Example Prompts: - "Refactor this dashboard following the Less Is More manifesto." - "Simplify this landing page. Use only the scale variables and remove all decorative elements." - "Build a contact form using the 'Honest Materials' precept semantic HTML only ." Visit the Museum of the Essential https://mendiak.github.io/less-is-more-ui/ for a curated showcase of these principles in action. The showcase applies the same rules it documents: - Six designer profiles — Mies van der Rohe, Louis Sullivan, Dieter Rams, Jony Ive, Josef Müller-Brockmann and Massimo Vignelli — each with a different layout treatment. - Eight case studies comparing the noisy and the essential version of the same pattern. - A 12-column grid and an 8px baseline , with section headers composed across the grid and placement expressed as spans. - A single inverted chapter Methodology and an inverted footer to give the page contrast without decoration. - SKILL.md – Main entry point and agent instructions. - docs/principles.md – Core design philosophy Mies, Sullivan, Müller-Brockmann, Vignelli, Rams . - docs/design-manifesto.md – High-level goals and aesthetic standards. - docs/design-process.md – Step-by-step method for minimal interface design. - docs/animations.md – Functional standards for subtle micro-interactions. - docs/responsive.md – Strategies for mobile-first reduction. - docs/accessibility.md – Minimalist standards for inclusive design. - docs/typography.md – Typographic pairing and technical standards. - docs/anti-patterns.md – Visual friction to identify and remove. - docs/design-checklist.md – Final UI quality verification. - assets/css/style.css – Demo showcase styles for the Museum of the Essential. - assets/css/components.css – Reusable UI component patterns buttons, forms, cards, navs . - index.html – The "Museum of the Essential" documentation and demo. - references/ - axioms.md – Foundational truths of minimal design. - grid.md – Grid construction, spans, baseline rhythm and responsive column reduction Müller-Brockmann . - case-studies.md – Analysis of successful minimal interfaces. - components.md – Pattern library for buttons, inputs, and cards. - tokens.css – Design tokens and scale variables. - evals/ – Performance benchmarks and evaluation sets. - assets/css/reset.css – Tiny modernist reset for a clean start. - index.css – Entry point for the npm package. - package.json – npm package configuration. - CHANGELOG.md – Release history. 1. Less is more. Reduction to the essential 2. Form follows function. Logic over decoration 3. Less but better. Instinctive simplicity Developed for clarity and purpose by Mendiak https://github.com/Mendiak .