logo-design

logo-design is a skill for Claude Code from zstvns/design-skills. It costs 112 tokens per session (4,490 once invoked), scanned A, original, MIT.

A guide for designing and judging logos using three tests: simple, appropriate, and distinct. It evaluates a mark in the context of its brand, competitors, and intended uses.

In plain words
What is it for?
Use it to create, refine, or review logos, wordmarks, brandmarks, monograms, favicons, and app icons.
Why use it?
It helps replace personal taste with clear checks for whether a logo remains recognizable, suitable, and different from competitors across sizes and formats.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the designskills plugin — 8 skills shipped together

Good fit Use it to create, refine, or review logos, wordmarks, brandmarks, monograms, favicons, and app icons.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/zstvns/design-skills/logo-design
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 zstvns/design-skills --skill logo-design
Clone the repo
git clone --depth 1 https://github.com/zstvns/design-skills

Made for: Claude Code.

Or install designskills, the plugin that ships this one along with the rest of its 8 skills.

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.

agentmods badge for logo-design

README.md
[![agentmods](https://agentmods.dev/badge/skills/zstvns/design-skills/logo-design/github.svg)](https://agentmods.dev/skills/zstvns/design-skills/logo-design)
Your own site
<a href="https://agentmods.dev/skills/zstvns/design-skills/logo-design"><img src="https://agentmods.dev/badge/skills/zstvns/design-skills/logo-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.

agentmods 80×15 button for logo-design

Your own site · 80×15
<a href="https://agentmods.dev/skills/zstvns/design-skills/logo-design"><img src="https://agentmods.dev/badge/skills/zstvns/design-skills/logo-design.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 112 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,490 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00112 $0.04490
Opus 5 $0.00056 $0.02245
Sonnet 5 $0.00022 $0.00898
Haiku 4.5 $0.00011 $0.00449

Measured 12d ago against content hash a5e325b5e641, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

logo-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 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.

skills/logo-design/SKILL.md · 149 lines

How it starts

The opening of the file, as written. The whole thing — 149 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Logo Design

You design and evaluate logos. A logo is the most distilled expression of a brand — it has to do the most work with the least. Read design-principles and .agents/brand.md before you judge or draw anything.

A logo is never judged on its own. Every part of the assessment happens in a context: against the competition, against the feeling the brand must produce, and against every place the mark has to live. Pull the brand context and the competitor set first — without them you cannot actually evaluate a mark, only react to it.

The Bar: SAD

A good logo is Simple, Appropriate, Distinct. The acronym is easy; the discipline is that each dimension is only judgeable against a specific context. Skip the context and you're just expressing taste.

Simple — judged across every implementation

Simple doesn't mean minimal or sparse. It means one idea that survives every reduction, drawn the same way everywhere. The baseline test is black and white: a logo must work with all color removed. If it needs its color, a gradient, or a glow to read, it isn't simple — color is the last layer, not a crutch. "Black and white" does not mean solid 100% black, though — opacity steps and tints of a single value (a mark built from 30/60/100% of one hue) are legitimate and still pass, because the mark is monochrome; it isn't leaning on color to read. The failure is dependence on hue/gradient, not the use of tints. Then verify across the whole implementation set, never just the hero lockup:

  • Does it hold at a 16px favicon? In a circle-cropped social avatar? A rounded-square app icon? Reversed on dark? Single-color? Etched, embroidered, foil-stamped?
  • Is it the same construction in all of them — or did someone quietly draw a different simplified version to survive the favicon? If the mark needs a second drawing to work small, it isn't simple yet.
  • Is there a single source of truth? Multiple versions in the wild with inconsistent light source, shadow direction, or orientation is a Simple failure — the mark has no defined construction. Establish the canonical drawing and the rules around it.
  • Judge the wordmark/lockup, not just the mark glyph. Inconsistent weight or size between words (e.g. "Cash Flow" bold + "Portal" light) raises cognitive load and can imply an unintended sub-brand. Unify the lockup, or drop the trailing word and reserve it for the legal/URL name.
  • Lay the implementations out side by side (see references/sad-checklist.md). Consistent + instantly legible everywhere = simple.
  • Recognition failure caps Simple. If the mark misreads as something else at small sizes — a mascot that reads as a different animal in the favicon, a "G" that reads as a "C" — that's a Simple failure, not a footnote. Flag it and let it move the score; an unrecognizable-at-small-size mark isn't doing its job.

Read the full file on GitHub · 149 lines

Files

What ships with it

5 files 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.

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. 12d ago First seen · 149 lines · 112 tokens per session scan A a5e325b5e641

Subscribe to this mod's changes

logo-design is a skill published in the GitHub repository zstvns/design-skills (12 stars, last pushed 22d ago), licensed MIT. It adds 112 tokens to every session and 4,490 once invoked, about $0.0006 per session on Opus 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.

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