design-md

design-md is a skill for Claude Code, Codex from MilkyWay008/Hermes-OTG. It costs 14 tokens per session (2,230 once invoked), scanned A, a copy of design-md, MIT.

A file format and toolkit for describing a product's visual identity to coding agents. It stores exact design values, such as colors, alongside explanations of how and why to use them.

In plain words
What is it for?
Use it to create, check, compare, or extend a DESIGN.md file, or to turn an existing style guide into machine-readable design tokens.
Why use it?
It keeps the same visual rules across projects and helps catch accessibility problems, including insufficient color contrast. It can also compare versions and export the values for other design tools.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to create, check, compare, or extend a DESIGN.md file, or to turn an existing style guide into machine-readable design tokens.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/milkyway008/hermes-otg/design-md
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 MilkyWay008/Hermes-OTG --skill design-md
Clone the repo
git clone --depth 1 https://github.com/MilkyWay008/Hermes-OTG

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.

agentmods badge for design-md

README.md
[![agentmods](https://agentmods.dev/badge/skills/milkyway008/hermes-otg/design-md/github.svg)](https://agentmods.dev/skills/milkyway008/hermes-otg/design-md)
Your own site
<a href="https://agentmods.dev/skills/milkyway008/hermes-otg/design-md"><img src="https://agentmods.dev/badge/skills/milkyway008/hermes-otg/design-md/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 design-md

Your own site · 80×15
<a href="https://agentmods.dev/skills/milkyway008/hermes-otg/design-md"><img src="https://agentmods.dev/badge/skills/milkyway008/hermes-otg/design-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 14 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,230 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00014 $0.02230
Opus 5 $0.00007 $0.01115
Sonnet 5 $0.00003 $0.00446
Haiku 4.5 $0.00001 $0.00223

Measured 11d ago against content hash 7ed56bba40ff, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

design-md 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 11d 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 design-md — 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.

data/skills/creative/design-md/SKILL.md · 221 lines

How it starts

The opening of the file, as written. The whole thing — 221 lines — stays where its author put it; the contents beside it link to each section on GitHub.

DESIGN.md Skill

DESIGN.md is Google's open spec (Apache-2.0, google-labs-code/design.md) for describing a visual identity to coding agents. One file combines:

  • YAML front matter — machine-readable design tokens (normative values)
  • Markdown body — human-readable rationale, organized into canonical sections

Tokens give exact values. Prose tells agents why those values exist and how to apply them. The CLI (npx @google/design.md) lints structure + WCAG contrast, diffs versions for regressions, and exports to Tailwind or W3C DTCG JSON.

When to use this skill

  • User asks for a DESIGN.md file, design tokens, or a design system spec
  • User wants consistent UI/brand across multiple projects or tools
  • User pastes an existing DESIGN.md and asks to lint, diff, export, or extend it
  • User asks to port a style guide into a format agents can consume
  • User wants contrast / WCAG accessibility validation on their color palette

For purely visual inspiration or layout examples, use popular-web-designs instead. For process and taste when designing a one-off HTML artifact from scratch (prototype, deck, landing page, component lab), use claude-design. This skill is for the formal spec file itself.

File anatomy

---
version: alpha
name: Heritage
description: Architectural minimalism meets journalistic gravitas.
colors:
  primary: "#1A1C1E"
  secondary: "#6C7278"
  tertiary: "#B8422E"
  neutral: "#F7F5F2"
typography:
  h1:
    fontFamily: Public Sans
    fontSize: 3rem
    fontWeight: 700
    lineHeight: 1.1
    letterSpacing: "-0.02em"
  body-md:
    fontFamily: Public Sans
    fontSize: 1rem
rounded:
  sm: 4px
  md: 8px
  lg: 16px
spacing:
  sm: 8px
  md: 16px
  lg: 24px
components:
  button-primary:
    backgroundColor: "{colors.tertiary}"
    textColor: "#FFFFFF"
    rounded: "{rounded.sm}"
    padding: 12px
  button-primary-hover:
    backgroundColor: "{colors.primary}"
---

## Overview

Architectural Minimalism meets Journalistic Gravitas...

## Colors

- **Primary (#1A1C1E):** Deep ink for headlines and core text.
- **Tertiary (#B8422E):** "Boston Clay" — the sole driver for interaction.

## Typography

Public Sans for everything except small all-caps labels...

## Components

`button-primary` is the only high-emphasis action on a page...

Read the full file on GitHub · 221 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.

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. 11d ago First seen · 221 lines · 14 tokens per session scan A 7ed56bba40ff

Subscribe to this mod's changes

design-md is a skill published in the GitHub repository MilkyWay008/Hermes-OTG (15 stars, last pushed 27d ago), licensed MIT. It adds 14 tokens to every session and 2,230 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to design-md, differing in 0 lines, and is treated as a copy.

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