What is neubrutalism?

A visual design guide for building interfaces with thick black borders, hard offset shadows, vivid colors, and little or no corner rounding.

Use it when creating cards, buttons, and other interface components that follow neubrutalism design rules.

It gives a consistent recipe for a bold neubrutalist style, so interface elements do not need to be designed from scratch each time.

neubrutalism — Skill for Claude Code by qinye6

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 qinye6/pi-ccg --skill neubrutalism

Clone the repo

git clone --depth 1 https://github.com/qinye6/pi-ccg

Made for: Claude Code.

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/qinye6/pi-ccg/neubrutalism/github.svg)](https://agentmods.dev/skills/qinye6/pi-ccg/neubrutalism)

Your own site

<a href="https://agentmods.dev/skills/qinye6/pi-ccg/neubrutalism"><img src="https://agentmods.dev/badge/skills/qinye6/pi-ccg/neubrutalism/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/qinye6/pi-ccg/neubrutalism"><img src="https://agentmods.dev/badge/skills/qinye6/pi-ccg/neubrutalism.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 37 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 941 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 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.

Model	Per session	Once invoked
Fable 5.1	$0.00037	$0.00941
Opus 5	$0.00018	$0.00470
Sonnet 5	$0.00007	$0.00188
Haiku 4.5	$0.00004	$0.00094

Measured 12d ago against content hash 3d27f6c1f950, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

neubrutalism 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 12d 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.

Origin

This is a copy

100% identical to neubrutalism — 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.

templates/skills/domains/frontend-design/neubrutalism/SKILL.md · 144 lines

How it starts

The opening of the file, as written. The whole thing — 144 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Neubrutalism Design Spec

Core Principles

Thick Borders — Bold 3–5px solid black outlines on all elements
Offset Solid Shadows — Hard-edge box-shadow with zero blur (e.g. 5px 5px 0 #000)
High Saturation Colors — Vivid, punchy fills: pinks, yellows, blues, greens
Minimal Radius — 0–8px border-radius; sharp or barely rounded corners
Flat Aesthetic — No gradients, no blur, no transparency

CSS Tokens

Reference: references/tokens.css

@import 'references/tokens.css';

.nb-card {
  background: var(--nb-yellow);
  border: var(--nb-border-thick);
  border-radius: var(--nb-radius);
  box-shadow: var(--nb-shadow);
}

Component Examples

Card

.nb-card {
  background: var(--nb-white);
  border: var(--nb-border-thick);
  border-radius: var(--nb-radius);
  box-shadow: var(--nb-shadow);
  padding: 1.5rem;
}

Button

.nb-btn {
  background: var(--nb-yellow);
  border: var(--nb-border);
  border-radius: var(--nb-radius);
  box-shadow: var(--nb-shadow-sm);
  padding: 0.6rem 1.4rem;
  font-family: var(--nb-font);
  font-weight: var(--nb-font-weight);
  cursor: pointer;
  transition: transform 0.1s, box-shadow 0.1s;
}
.nb-btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--nb-shadow);
}
.nb-btn:active {
  transform: translate(3px, 3px);
  box-shadow: none;
}

Navbar

.nb-nav {
  background: var(--nb-bg);
  border-bottom: var(--nb-border-thick);
  padding: 1rem 2rem;
  position: sticky;
  top: 0;
  z-index: 100;
}

Input

.nb-input {
  background: var(--nb-white);
  border: var(--nb-border);
  border-radius: var(--nb-radius);
  box-shadow: var(--nb-shadow-sm);
  padding: 0.6rem 1rem;
  font-family: var(--nb-font);
  font-weight: var(--nb-font-weight-body);
}
.nb-input:focus {
  outline: none;
  box-shadow: var(--nb-shadow);
}

Badge

.nb-badge {
  background: var(--nb-pink);
  border: var(--nb-border);
  border-radius: var(--nb-radius);
  padding: 0.2rem 0.8rem;
  font-family: var(--nb-font);
  font-weight: var(--nb-font-weight);
  font-size: 0.85rem;
}

Read the full file on GitHub · 144 lines

Files

What ships with it

1 file 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.

references/tokens.css 1.0 KB

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.

12d ago First seen · 144 lines · 37 tokens per session scan A 3d27f6c1f950

Subscribe to this mod's changes

neubrutalism is a skill published in the GitHub repository qinye6/pi-ccg (10 stars, last pushed 17d ago), licensed MIT. It adds 37 tokens to every session and 941 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 neubrutalism, differing in 0 lines, and is treated as a copy.

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neubrutalism