kb-design-system SKILL.md skillA
kb-design-system from community-access/accessibility-agents is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add community-access/accessibility-agents/kb-design-system@git:20261028.aaf1cfbPins git:20261028.aaf1cfb in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- community-access/accessibility-agents
- Path
skills/kb-design-system/SKILL.md- Versions recorded
- 4
- Latest version
- git:20261028.aaf1cfb, committed Oct 28, 2026
- First version recorded
- Sep 22, 2026
- Size
- 10,852 bytes
- Repository stars
- 436
- License
- MIT
Reference data, not a reviewer. Validate design system tokens for WCAG AA/AAA contrast. Compute color token contrast, focus ring validation (WCAG 2.4.13), motion tokens, and spacing for touch targets across frameworks.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
## Design System Accessibility Skill
This skill provides reference data for design token contrast validation, focus ring compliance, and spacing audits. Used by the `design-system-auditor` skill.
---
## WCAG Contrast Ratio - Computation Reference
### Step 1: Linearize sRGB Channel
For each channel `C` in `[0, 255]`:
```text
c = C / 255
c_lin = c / 12.92 if c <= 0.04045
c_lin = ((c + 0.055) / 1.055)^2.4 otherwise
```
### Step 2: Relative Luminance
```text
L = 0.2126 * R_lin + 0.7152 * G_lin + 0.0722 * B_lin
```
### Step 3: Contrast Ratio
```text
ratio = (L_lighter + 0.05) / (L_darker + 0.05)
```
### Quick JavaScript Implementation
```js
function relativeLuminance(hex) {
const c = hex.replace('#', '').match(/.{2}/g)
.map(h => parseInt(h, 16) / 255)
.map(c => c <= 0.04045 ? c / 12.92 : Math.pow((c + 0.055) / 1.055, 2.4));
return 0.2126 * c[0] + 0.7152 * c[1] + 0.0722 * c[2];
}
function contrastRatio(hex1, hex2) {
const L1 = relativeLuminance(hex1);
const L2 = relativeLuminance(hex2);
const lighter = Math.max(L1, L2);
const darker = Math.min(L1, L2);
return (lighter + 0.05) / (darker + 0.05);
}
// Example
…Read the whole file at its exact version.
How to install
mdr add community-access/accessibility-agents/kb-design-system@sha256:027133986852681cThe line at the top of this page pins the label git:20261028.aaf1cfb, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_ytuqzkowaqgtkysb)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Sep 22, 2026 and Oct 28, 2026, about one every 12 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261028.aaf1cfb latest | 2026-10-28 | aaf1cfb | 10,852 B | A | view · diff |
| git:20261028.ca3ed1b | 2026-10-28 | ca3ed1b | 18,215 B | A | view · diff |
| git:20261028.d473f9f | 2026-10-28 | d473f9f | 18,222 B | A | view · diff |
| git:20260922.cd88753 | 2026-09-22 | cd88753 | 16,349 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (10852 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
community-access/accessibility-agents · 436 stars · license MIT · pushed 2026-10-30 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ytuqzkowaqgtkysb GET https://markdownregistry.com/api/v1/resolve?ref=community-access/accessibility-agents/kb-design-system GET https://markdownregistry.com/api/v1/blob/027133986852681c3a900dcde42c8df444aeb73a876bdeef9709b6889e976729
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.