AuC is a Python framework for running a single AI agent with an asynchronous, pluggable reasoning loop, language-model adapters, permission levels, and observable events. It is used to build coding and conversational agents with tools, security checks, web interfaces, background jobs, evaluations, and isolated execution. The catalogue entries are skills for extending its agent workflow.
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 ufy2024/AuC --skill accessibilitygit clone --depth 1 https://github.com/ufy2024/AuCWrote 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/ufy2024/auc/accessibility)<a href="https://agentmods.dev/skills/ufy2024/auc/accessibility"><img src="https://agentmods.dev/badge/skills/ufy2024/auc/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/ufy2024/auc/accessibility"><img src="https://agentmods.dev/badge/skills/ufy2024/auc/accessibility.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium Agent Snooping · line 21 Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
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 | $0.01585 |
| Opus 5.5 | $0.00019 | $0.00634 |
| Sonnet 5.5 | $0.00009 | $0.00317 |
| Haiku 4.5 | $0.00005 | $0.00159 |
Grade A, and why
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 1mo 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.
Copies of this mod
7 near-identical copies found in the catalogue:
- accessibility — 91% identical, 28 lines differ
- accessibility — 91% identical, 29 lines differ
- accessibility — 91% identical, 28 lines differ
- accessibility — 89% identical, 30 lines differ
- accessibility — 86% identical, 31 lines differ
- accessibility — 86% identical, 29 lines differ
- accessibility — 86% identical, 29 lines differ
How it starts
The opening of the file, as written. The whole thing — 167 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Accessibility (WCAG 2.2)
This skill ensures that digital interfaces are Perceivable, Operable, Understandable, and Robust (POUR) for all users, including those using screen readers, switch controls, or keyboard navigation. It focuses on the technical implementation of WCAG 2.2 success criteria.
When to Use
- Defining UI component specifications for Web, iOS, or Android.
- Auditing existing code for accessibility barriers or compliance gaps.
- Implementing new WCAG 2.2 standards like Target Size (Minimum) and Focus Appearance.
- Mapping high-level design requirements to technical attributes (ARIA roles, traits, hints).
Core Concepts
- POUR Principles: The foundation of WCAG (Perceivable, Operable, Understandable, Robust).
- Semantic Mapping: Using native elements over generic containers to provide built-in accessibility.
- Accessibility Tree: The representation of the UI that assistive technologies actually "read."
- Focus Management: Controlling the order and visibility of the keyboard/screen reader cursor.
- Labeling & Hints: Providing context through
aria-label,accessibilityLabel, andcontentDescription.
How It Works
Step 1: Identify the Component Role
Determine the functional purpose (e.g., Is this a button, a link, or a tab?). Use the most semantic native element available before resorting to custom roles.
Step 2: Define Perceivable Attributes
- Ensure text contrast meets 4.5:1 (normal) or 3:1 (large/UI).
- Add text alternatives for non-text content (images, icons).
- Implement responsive reflow (up to 400% zoom without loss of function).
Step 3: Implement Operable Controls
- Ensure a minimum 24x24 CSS pixel target size (WCAG 2.2 SC 2.5.8).
- Verify all interactive elements are reachable via keyboard and have a visible focus indicator (SC 2.4.11).
- Provide single-pointer alternatives for dragging movements.
Step 4: Ensure Understandable Logic
- Use consistent navigation patterns.
- Provide descriptive error messages and suggestions for correction (SC 3.3.3).
- Implement "Redundant Entry" (SC 3.3.7) to prevent asking for the same data twice.
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.
- 1mo ago First seen · 167 lines · 47 tokens per session scan A 37210b638266
accessibility is a skill published in the GitHub repository ufy2024/AuC (1,073 stars, last pushed 2mo ago), licensed MIT. It adds 47 tokens to every session and 1,585 once invoked, about $0.0002 per session on Opus 5.5. 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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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.