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 aj-geddes/useful-ai-prompts --skill color-accessibilitygit clone --depth 1 https://github.com/aj-geddes/useful-ai-promptsWrote 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/aj-geddes/useful-ai-prompts/color-accessibility)<a href="https://agentmods.dev/skills/aj-geddes/useful-ai-prompts/color-accessibility"><img src="https://agentmods.dev/badge/skills/aj-geddes/useful-ai-prompts/color-accessibility/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/aj-geddes/useful-ai-prompts/color-accessibility"><img src="https://agentmods.dev/badge/skills/aj-geddes/useful-ai-prompts/color-accessibility.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
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 | $0.00032 | $0.00618 |
| Opus 5 | $0.00016 | $0.00309 |
| Sonnet 5 | $0.00006 | $0.00124 |
| Haiku 4.5 | $0.00003 | $0.00062 |
Grade A, and why
color-accessibility 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 9d 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 — 103 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Color Accessibility
Table of Contents
Overview
Accessible color design ensures all users, including those with color vision deficiency, can access and understand information.
When to Use
- Creating color palettes
- Designing data visualizations
- Testing interface designs
- Status indicators and alerts
- Form validation states
- Charts and graphs
Quick Start
Minimal working example:
WCAG Contrast Ratios:
WCAG AA (Minimum):
- Normal text: 4.5:1
- Large text (18pt+): 3:1
- UI components & graphical elements: 3:1
- Focus indicators: 3:1
WCAG AAA (Enhanced):
- Normal text: 7:1
- Large text: 4.5:1
- Better for accessibility
---
Testing Contrast:
Tools:
- WebAIM Contrast Checker
- Color Contrast Analyzer
- Figma plugins
- Browser DevTools
Formula (WCAG): Contrast = (L1 + 0.05) / (L2 + 0.05)
Where L = relative luminance
// ... (see reference guides for full implementation)
Reference Guides
Detailed implementations in the references/ directory:
| Guide | Contents |
|---|---|
| Color Contrast Standards | Color Contrast Standards |
| Color Vision Deficiency Simulation | Color Vision Deficiency Simulation |
| Accessible Color Usage | Accessible Color Usage |
| Testing & Validation | Testing & Validation |
Best Practices
✅ DO
- Ensure 4.5:1 contrast minimum (WCAG AA)
- Test with color blindness simulator
- Use patterns or icons with color
- Label states with text, not color alone
- Test with real users with color blindness
- Document color usage in design system
- Choose accessible color palettes
- Use sequential colors for ordered data
- Validate all color combinations
- Include focus indicators
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.
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.
- 9d ago First seen · 103 lines · 32 tokens per session scan A c1dafc3a8bfe
color-accessibility is a skill published in the GitHub repository aj-geddes/useful-ai-prompts (338 stars, last pushed 6mo ago), licensed MIT. It adds 32 tokens to every session and 618 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 2026-09-03.
Other skills, from other repositories
webgl-holographic-foil
A self-contained WebGL2 hero: thin-film interference over a crushed-foil surface whose palette shifts with the viewing angle; move the cursor to tilt the film.
html-ppt-hermes-cyber-terminal
OpenDesign + BYOK: choosing and wiring your own model, hands-on — cost, quality, and the routing decision. Built as a decision-grade AI literacy deck for engineers, IT, applied-AI teams.
html-ppt-taste-brutalist
16:9 HTML deck in tactical-telemetry / CRT-terminal taste. Deactivated-CRT charcoal slides, white-phosphor monospace, hazard-red accent, scanline overlay, ASCII syntax, density over decoration. Distilled from Leonxlnx/taste-skill brutalist-skill (Tactical Telemetry mode).
visual-ralph
Visual Ralph orchestration for frontend UI from generated references, static references, or live URL targets, using $ultragoal with built-in visual verdict and pixel-diff evidence until the implementation matches and leaves a reproducible design system.
accessibility
Consolidated accessibility skill entrypoint for WCAG 2.2, ARIA Authoring Practices, cognitive accessibility, Section 508, EN 301 549, design intent verification, and the Accessibility Planner workflow.
make-resume
A Chinese-language tool for creating editable HTML resumes that can be changed in a browser and printed to PDF. It uses available resume templates when they are installed and otherwise provides a simpler fallback.