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.
npx skills add dylantarre/design-system-skills --skill type-scalegit clone --depth 1 https://github.com/dylantarre/design-system-skillsWrote 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.
[](https://agentmods.dev/skills/dylantarre/design-system-skills/type-scale)<a href="https://agentmods.dev/skills/dylantarre/design-system-skills/type-scale"><img src="https://agentmods.dev/badge/skills/dylantarre/design-system-skills/type-scale/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.
<a href="https://agentmods.dev/skills/dylantarre/design-system-skills/type-scale"><img src="https://agentmods.dev/badge/skills/dylantarre/design-system-skills/type-scale.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00047 | $0.01124 |
| Opus 5 | $0.00023 | $0.00562 |
| Sonnet 5 | $0.00009 | $0.00225 |
| Haiku 4.5 | $0.00005 | $0.00112 |
Grade A, and why
type-scale 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.
How it starts
The opening of the file, as written. The whole thing — 134 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Type Scale Generator
Overview
Generate harmonious typography scales using musical interval ratios. Automatically calculates appropriate line heights based on font size for optimal readability.
When to Use
- Setting up typography for a new project
- Creating heading hierarchy (h1-h6)
- Standardizing font sizes across components
- Building a responsive type system
Quick Reference: Musical Ratios
| Name | Ratio | Character |
|---|---|---|
| Minor Second | 1.067 | Subtle, tight |
| Major Second | 1.125 | Conservative |
| Minor Third | 1.2 | Versatile (recommended) |
| Major Third | 1.25 | Balanced |
| Perfect Fourth | 1.333 | Bold contrast |
| Augmented Fourth | 1.414 | Dramatic |
| Perfect Fifth | 1.5 | High contrast |
| Golden Ratio | 1.618 | Classical, striking |
The Process
- Get base size: Default 16px (browser default, good baseline)
- Choose ratio: Recommend Minor Third (1.2) for most projects
- Steps up: How many sizes above base (6-8 typical for headings)
- Steps down: How many sizes below base (2-3 for small/caption text)
- Ask unit: px, rem, or em?
- Ask format: CSS, Tailwind, or JSON?
- Generate: Create scale with auto line heights
Auto Line Height
Larger fonts need tighter line height for readability:
| Font Size | Line Height | Reasoning |
|---|---|---|
| 14px or less | 1.7 | Small text needs room |
| 15-18px | 1.6 | Body text range |
| 19-24px | 1.5 | Large body/small headings |
| 25-32px | 1.4 | Subheadings |
| 33-48px | 1.3 | Headings |
| 49px+ | 1.2 | Display text |
Output Formats
CSS Custom Properties:
:root {
/* Font Sizes */
--text-xs: 13.33px;
--text-sm: 14.22px;
--text-base: 16px;
--text-lg: 19.2px;
--text-xl: 23.04px;
--text-2xl: 27.65px;
/* Line Heights */
--leading-xs: 1.70;
--leading-sm: 1.70;
--leading-base: 1.60;
--leading-lg: 1.50;
--leading-xl: 1.50;
--leading-2xl: 1.40;
}
Tailwind Config:
module.exports = {
theme: {
fontSize: {
'xs': ['13.33px', { lineHeight: '1.70' }],
'sm': ['14.22px', { lineHeight: '1.70' }],
'base': ['16px', { lineHeight: '1.60' }],
'lg': ['19.2px', { lineHeight: '1.50' }],
'xl': ['23.04px', { lineHeight: '1.50' }],
'2xl': ['27.65px', { lineHeight: '1.40' }],
}
}
}
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.
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 · 134 lines · 47 tokens per session scan A 1ac0987bc7f3
type-scale is a skill published in the GitHub repository dylantarre/design-system-skills (43 stars, last pushed 8mo ago), licensed MIT. It adds 47 tokens to every session and 1,124 once invoked, about $0.0002 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 2026-08-30.
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