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 khadinakbarlabs/shopify-app-builder --skill app-accessibilitygit clone --depth 1 https://github.com/khadinakbarlabs/shopify-app-builderWrote 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/khadinakbarlabs/shopify-app-builder/app-accessibility)<a href="https://agentmods.dev/skills/khadinakbarlabs/shopify-app-builder/app-accessibility"><img src="https://agentmods.dev/badge/skills/khadinakbarlabs/shopify-app-builder/app-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/khadinakbarlabs/shopify-app-builder/app-accessibility"><img src="https://agentmods.dev/badge/skills/khadinakbarlabs/shopify-app-builder/app-accessibility.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 | $0.00153 | $0.06402 |
| Opus 5 | $0.00077 | $0.03201 |
| Sonnet 5 | $0.00031 | $0.01280 |
| Haiku 4.5 | $0.00015 | $0.00640 |
Grade A, and why
app-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 8d 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 — 462 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Shopify Embedded App Accessibility (WCAG 2.1 AA)
Accessibility is a Built for Shopify gate and a legal requirement (ADA Title III, European Accessibility Act took effect 2025-06-28). Audited apps fail BFS review when keyboard navigation breaks inside iframes, focus indicators are stripped, alt text is missing on product imagery, or color contrast drops below 4.5:1. This skill is the checklist for every embedded app feature.
1. When to Use
Trigger this skill when:
- Building any new screen, Modal, SaveBar, or form in an embedded app
- Auditing an existing app before Built for Shopify submission
- Investigating a merchant complaint about keyboard or screen reader usage
- Reviewing a PR that touches focus, ARIA, color, or alt text
- Deciding whether to override a Polaris token (almost never — see Section 6)
- Adding i18n / RTL support that touches reading order, aria-label strings, or lang attributes
- Pairing with
polaris-ui(component usage) orapp-bridge(Modal/SaveBar) — this skill is the a11y overlay on top of both
Do NOT use this skill for storefront / theme accessibility — that is a separate domain (shopify.dev/docs/storefronts/themes/best-practices/accessibility).
2. WCAG 2.1 AA Criteria Applied to Shopify Apps
Shopify Polaris targets WCAG 2.1 A and AA by default. Embedded apps inherit that baseline only if you use Polaris components correctly and do not override semantics, contrast, or focus. The criteria that matter most for admin apps:
Perceivable
- 1.1.1 Non-text Content (A) — every image, icon-only button, and chart needs a text alternative
- 1.3.1 Info and Relationships (A) — use semantic HTML;
<Text as="h2">not<Text variant="headingMd">on a paragraph - 1.3.5 Identify Input Purpose (AA) — use
autoCompleteon email, name, address, tel inputs - 1.4.3 Contrast Minimum (AA) — 4.5:1 for text under 18pt, 3:1 for large text
- 1.4.11 Non-text Contrast (AA) — 3:1 for form borders, focus rings, icons that convey state
- 1.4.10 Reflow (AA) — content must reflow at 320 CSS px width; no horizontal scroll inside the iframe
- 1.4.12 Text Spacing (AA) — line height 1.5x font-size, paragraph spacing 2x; Polaris defaults pass
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.
- 8d ago First seen · 462 lines · 153 tokens per session scan A bd330164637d
app-accessibility is a skill published in the GitHub repository khadinakbarlabs/shopify-app-builder (1 stars, last pushed 29d ago), licensed MIT. It adds 153 tokens to every session and 6,402 once invoked, about $0.0008 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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