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 Stijnman/grok-custom-skills --skill accessible-color-reviewgit clone --depth 1 https://github.com/Stijnman/grok-custom-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/stijnman/grok-custom-skills/accessible-color-review)<a href="https://agentmods.dev/skills/stijnman/grok-custom-skills/accessible-color-review"><img src="https://agentmods.dev/badge/skills/stijnman/grok-custom-skills/accessible-color-review/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/stijnman/grok-custom-skills/accessible-color-review"><img src="https://agentmods.dev/badge/skills/stijnman/grok-custom-skills/accessible-color-review.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 | $0.00041 | $0.00373 |
| Opus 5 | $0.00020 | $0.00187 |
| Sonnet 5 | $0.00008 | $0.00075 |
| Haiku 4.5 | $0.00004 | $0.00037 |
Grade A, and why
accessible-color-review 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.
What it actually says
Accessible Color Review
Purpose
Review a palette, design, screenshot, or interface implementation for readability and robust semantic color use. Treat automated checks as evidence to review, not as a substitute for visual or user testing.
Workflow
- Identify foreground-background pairs, interactive states, data visualizations, and color-only signals.
- Calculate or verify contrast for text and essential UI elements using the applicable accessibility target.
- Check whether color communicates meaning consistently and whether another cue supports status, errors, and links.
- Review color-vision risks, especially charts and success/error pairings.
- Propose the smallest changes that improve readability while preserving the visual system.
- Return findings with observed evidence, confidence, severity, and suggested replacements.
Quality boundaries
Do not claim compliance from a palette alone. Contrast depends on rendered size, weight, background, opacity, and state. Flag uncertainty when an image or code sample cannot establish those conditions.
Error handling
| Situation | Response |
|---|---|
| Screenshot is incomplete | Limit findings to visible evidence and request the missing state. |
| Pair cannot be measured | Explain the required colors and rendering context. |
| Brand color fails contrast | Offer accessible pairings or non-color cues instead of changing it without context. |
| Chart uses similar categories | Recommend labels, patterns, markers, or direct annotation. |
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 · 39 lines · 41 tokens per session scan A bb77c5e379cc
accessible-color-review is a skill published in the GitHub repository Stijnman/grok-custom-skills (9 stars, last pushed yesterday), licensed MIT. It adds 41 tokens to every session and 373 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 2026-08-31.
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