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 Community-Access/accessibility-agents --skill kb-accessibility-rulesgit clone --depth 1 https://github.com/Community-Access/accessibility-agentsWrote 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/community-access/accessibility-agents/kb-accessibility-rules)<a href="https://agentmods.dev/skills/community-access/accessibility-agents/kb-accessibility-rules"><img src="https://agentmods.dev/badge/skills/community-access/accessibility-agents/kb-accessibility-rules/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/community-access/accessibility-agents/kb-accessibility-rules"><img src="https://agentmods.dev/badge/skills/community-access/accessibility-agents/kb-accessibility-rules.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 | $0.00038 | $0.02121 |
| Opus 5.5 | $0.00015 | $0.00848 |
| Sonnet 5.5 | $0.00008 | $0.00424 |
| Haiku 4.5 | $0.00004 | $0.00212 |
Grade A, and why
kb-accessibility-rules 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.
How it starts
The opening of the file, as written. The whole thing — 145 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Document Accessibility Rules Reference
Rule ID Prefixes
Each prefix, with its format, sub-agent and count.
| Prefix | Format | Sub-Agent | Count |
|---|---|---|---|
| DOCX-E* | Word errors | word-accessibility | 9 rules |
| DOCX-W* | Word warnings | word-accessibility | 6 rules |
| DOCX-T* | Word tips | word-accessibility | 3 rules |
| XLSX-E* | Excel errors | excel-accessibility | 8 rules |
| XLSX-W* | Excel warnings | excel-accessibility | 5 rules |
| XLSX-T* | Excel tips | excel-accessibility | 3 rules |
| PPTX-E* | PowerPoint errors | powerpoint-accessibility | 7 rules |
| PPTX-W* | PowerPoint warnings | powerpoint-accessibility | 6 rules |
| PPTX-T* | PowerPoint tips | powerpoint-accessibility | 4 rules |
| PDFUA.* | PDF/UA conformance | pdf-accessibility | 30 rules |
| PDFBP.* | PDF best practices | pdf-accessibility | 22 rules |
| PDFQ.* | PDF quality/pipeline | pdf-accessibility | 4 rules |
| EPUB-E* | ePub errors | epub-accessibility | 7 rules |
| EPUB-W* | ePub warnings | epub-accessibility | 6 rules |
| EPUB-T* | ePub tips | epub-accessibility | 3 rules |
WCAG 2.2 Criterion Mapping
Complete tracking of all WCAG 2.2 Level A and AA success criteria. Criteria with document-specific rules list the rule IDs. Criteria requiring human judgment show "Manual review". Criteria that apply only to web/app contexts show a dash. See the wcag-guide agent for full explanations of each criterion.
Note: WCAG 2.2 removed 4.1.1 Parsing (it is "always satisfied" in modern user agents and no longer tested).
Level A (Must Fix)
Each WCAG, with its criterion and related rules.
| WCAG | Criterion | Related Rules |
|---|---|---|
| 1.1.1 | Non-text Content | DOCX-E001, XLSX-E001, PPTX-E001, PDFUA.IMG.ALT, EPUB-E005 |
| 1.2.1 | Audio-only and Video-only (Prerecorded) | Manual review (embedded media) |
| 1.2.2 | Captions (Prerecorded) | Manual review (embedded video) |
| 1.2.3 | Audio Description or Media Alternative (Prerecorded) | Manual review (embedded video) |
| 1.3.1 | Info and Relationships | DOCX-E002, DOCX-E003, DOCX-E005, XLSX-E002, XLSX-E004, PPTX-E004, PDFUA.TAGGED, PDFUA.HEADINGS |
| 1.3.2 | Meaningful Sequence | PPTX-E006, PDFUA.READING_ORDER, EPUB-E006 |
| 1.3.3 | Sensory Characteristics | Manual review (all formats) |
| 1.4.1 | Use of Color | XLSX-E007, Manual review (other formats) |
| 1.4.2 | Audio Control | Manual review (embedded audio) |
| 2.1.1 | Keyboard | PDFUA.FORMS (interactive PDFs) |
| 2.1.2 | No Keyboard Trap | PDFUA.FORMS (interactive PDFs) |
| 2.1.4 | Character Key Shortcuts | --- (web/app-specific) |
| 2.2.1 | Timing Adjustable | --- (web/app-specific) |
| 2.2.2 | Pause, Stop, Hide | Manual review (animated content in documents) |
| 2.3.1 | Three Flashes or Below Threshold | Manual review (animated content) |
| 2.4.1 | Bypass Blocks | PDFUA.BOOKMARKS, PDFBP.NAV, EPUB-E004 |
| 2.4.2 | Page Titled | DOCX-E004, XLSX-E006, PPTX-E002, PDFUA.TITLE, EPUB-E001 |
| 2.4.3 | Focus Order | PDFUA.FORMS (interactive PDFs) |
| 2.4.4 | Link Purpose (In Context) | DOCX-E006, XLSX-E005, PPTX-E005 |
| 2.5.1 | Pointer Gestures | --- (web/app-specific) |
| 2.5.2 | Pointer Cancellation | --- (web/app-specific) |
| 2.5.3 | Label in Name | PDFUA.FORMS (interactive PDFs) |
| 2.5.4 | Motion Actuation | --- (web/app-specific) |
| 3.1.1 | Language of Page | DOCX-T001, XLSX-T003, PPTX-T004, PDFUA.LANG, EPUB-E003 |
| 3.2.1 | On Focus | --- (web/app-specific) |
| 3.2.2 | On Input | --- (web/app-specific) |
| 3.2.6 | Consistent Help | --- (web/app-specific) |
| 3.3.1 | Error Identification | PDFUA.FORMS (interactive PDFs) |
| 3.3.2 | Labels or Instructions | PDFUA.FORMS (interactive PDFs) |
| 3.3.7 | Redundant Entry | --- (web/app-specific) |
| 4.1.2 | Name, Role, Value | DOCX-E009, PDFUA.FORMS, PDFUA.TAGS |
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.
- 1mo ago First seen · 145 lines · 38 tokens per session scan A 0e3c40494e31
kb-accessibility-rules is a skill published in the GitHub repository Community-Access/accessibility-agents (428 stars, last pushed 1mo ago), licensed MIT. It adds 38 tokens to every session and 2,121 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 2026-09-23.
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