mcpField
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axiom-accessibility

axiom-accessibility

github.com/charleswiltgenDesign & UI1.2k1.2k installsUpdated today
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About axiom-accessibility

axiom-accessibility is a routing skill for developers auditing accessibility and user flows in Apple apps. It maps issues such as VoiceOver, Dynamic Type, contrast, and UX dead ends to focused guidance and audit procedures.

Key features

  1. 01Guidance for VoiceOver and Dynamic Type
  2. 02Checks for contrast, touch targets, and WCAG
  3. 03Routes UX dead ends and missing interface states
  4. 04Points to accessibility and UX audit procedures
  5. 05Includes watchOS-specific accessibility references

Use cases

  1. 01Diagnosing missing VoiceOver labels
  2. 02Checking Dynamic Type or color contrast issues
  3. 03Finding dismiss traps and missing error states
  4. 04Reviewing watchOS accessibility behavior

Install

Copy the command and run it in a terminal.

$npx skills add https://github.com/charleswiltgen/axiom --skill axiom-accessibility

After installing, type/axiom-accessibilityin Claude Code to confirm it loaded.

Bundled files

References and scripts installed along with SKILL.md.

skills/
accessibility-auditor.md
accessibility-diag.md
ux-flow-audit.md
watchos-a11y.md

Details

From the project README

Accessibility

You MUST use this skill for ANY accessibility work including VoiceOver, Dynamic Type, color contrast, WCAG compliance, and UX flow auditing.

Can't launch Axiom agents? Where this router sends you to an agent, follow its procedure inline. Over MCP, axiom_get_agent returns it; elsewhere, read its file below, which needs only file search and read.

Available here: skills/accessibility-auditor.md. Homed in another suite: axiom-concurrency/skills/concurrency-auditor.md, axiom-data/skills/swiftdata-auditor.md, axiom-swiftui/skills/swiftui-nav-auditor.md, axiom-swiftui/skills/ux-flow-auditor.md.

For any other agent, over MCP axiom_get_agent returns it too; run its xclog, xcsym and xcprof steps with the axiom_xclog_*, axiom_xcsym_* and axiom_xcprof_* tools. Elsewhere, search Axiom's skills for skills/<agent>.md; if there is none, do that work yourself with this suite's skills, using any Axiom tool on your PATH.

Quick Reference

Symptom / TaskReference
VoiceOver labels, hints, navigationSee skills/accessibility-diag.md
Dynamic Type scaling violationsSee skills/accessibility-diag.md
Dynamic Type on tvOS (Large Text, tvOS 27)See skills/accessibility-diag.md
Long-form reading apps (continuous reading, Speak Screen, text navigation)See skills/accessibility-diag.md
Captions & subtitle styling in video players (generated subtitles, style preview)See skills/accessibility-diag.md
Custom control technique choice (adjustable, passthrough, direct touch)See skills/accessibility-diag.md
Accessibility Nutrition LabelsSee skills/accessibility-diag.md
Color contrast (WCAG AA/AAA)See skills/accessibility-diag.md
Touch target sizes (< 44x44pt)See skills/accessibility-diag.md
Keyboard navigation (iPadOS/macOS)See skills/accessibility-diag.md
Button Shapes, Large Content Viewer, Full Keyboard Access, Switch ControlSee skills/accessibility-diag.md
VoiceOver order broken after resize / column collapse; table & grid semanticsSee skills/accessibility-diag.md
Reduce Motion supportSee skills/accessibility-diag.md
Assistive Access (cognitive, iOS 17+)See skills/accessibility-diag.md
Accessibility Inspector workflowsSee skills/accessibility-diag.md
UX dead ends, dismiss trapsSee skills/ux-flow-audit.md
Buried CTAs, missing empty statesSee skills/ux-flow-audit.md
Missing loading/error statesSee skills/ux-flow-audit.md
Deep link dead endsSee skills/ux-flow-audit.md
Accessibility dead ends (gesture-only)See skills/ux-flow-audit.md
watchOS-specific (VoiceOver rotor on Digital Crown, AssistiveTouch, Double Tap)See skills/watchos-a11y.md

Cross-Suite Routes

  • Full watchOS development context → See axiom-watchos
  • Live accessibility validation on the simulator (set toggles, assert announcements) → simulator-tester agent + xcui — see axiom-tools (skills/xcui-ref.md)
  • Asserting VoiceOver speech in an XCUITest (XCUIDevice.shared.voiceOverService, OS27) → axiom-testing (skills/ui-testing.md Pattern 7)

Decision Tree

digraph accessibility {
    start [label="Accessibility issue" shape=ellipse];
    what [label="What type?" shape=diamond];

    start -> what;
    what -> "skills/accessibility-diag.md" [label="VoiceOver/labels/hints"];
    what -> "skills/accessibility-diag.md" [label="Dynamic Type"];
    what -> "skills/accessibility-diag.md" [label="color contrast"];
    what -> "skills/accessibility-diag.md" [label="touch targets"];
    what -> "skills/accessibility-diag.md" [label="keyboard nav"];
    what -> "skills/accessibility-diag.md" [label="resizable window / desktop-class"];
    what -> "skills/accessibility-diag.md" [label="Reduce Motion"];
    what -> "skills/accessibility-diag.md" [label="Assistive Access"];
    what -> "skills/accessibility-diag.md" [label="custom control techniques"];
    what -> "skills/accessibility-diag.md" [label="continuous reading / text navigation"];
    what -> "skills/accessibility-diag.md" [label="captions / subtitle styling"];
    what -> "skills/accessibility-diag.md" [label="App Store prep / Nutrition Labels"];
    what -> "skills/ux-flow-audit.md" [label="UX dead end/dismiss trap"];
    what -> "skills/ux-flow-audit.md" [label="missing states"];
    what -> "skills/watchos-a11y.md" [label="watchOS VoiceOver / AssistiveTouch / Double Tap"];
    what -> "accessibility-auditor" [label="automated scan" shape=box];
}
  1. ANY VoiceOver, Dynamic Type (including tvOS Large Text), contrast, touch target, or WCAG issue → skills/accessibility-diag.md
  2. Assistive Access (cognitive disabilities, iOS 17+) → skills/accessibility-diag.md
  3. Accessibility Nutrition Labels, or an App Review note about accessibility → skills/accessibility-diag.md
  4. Reading app: VoiceOver stops at paragraphs/pages, Speak Screen halts → skills/accessibility-diag.md
  5. UX dead ends, dismiss traps, buried CTAs, missing states → skills/ux-flow-audit.md
  6. watchOS-specific accessibility (rotor on Digital Crown, AssistiveTouch, Double Tap) → skills/watchos-a11y.md
  7. Want automated accessibility scan? → accessibility-auditor agent or /axiom:audit accessibility

Automated Scanning

Accessibility audit → Launch accessibility-auditor agent or /axiom:audit accessibility

  • VoiceOver labels and hints
  • Dynamic Type violations
  • Color contrast failures
  • WCAG compliance scanning

UX flow audit → Launch ux-flow-auditor agent

  • Dead-end views, dismiss traps
  • Buried CTAs, missing empty/loading/error states
  • Deep link dead ends, accessibility dead ends

Critical Patterns

Image Accessibility
  • Use Image(decorative: "photo") for purely decorative images — automatically hidden from VoiceOver (equivalent to accessibilityHidden(true) but semantically clearer)
  • Use accessibilityInputLabels() for buttons with complex or changing labels — improves Voice Control accuracy by providing alternative labels
  • Respect accessibilityDifferentiateWithoutColor environment value — when active, provide non-color cues (icons, patterns, labels) alongside color indicators

Anti-Rationalization

ThoughtReality
"I'll add VoiceOver labels when I'm done building"Accessibility is foundational, not polish. Retrofitting labels across a finished app takes far longer, and until they're done VoiceOver support can't be declared.
"My app doesn't need accessibility"All apps need accessibility. It isn't an App Store rule, but people who rely on VoiceOver or Larger Text can't use the app without it, and its Accessibility Nutrition Labels show that before they download.
"Dynamic Type just needs .scaledFont"Dynamic Type has 7 common violations. accessibility-diag catches them all.
"Color contrast looks fine to me"Visual assessment is unreliable. WCAG ratios require measurement. accessibility-diag validates.
"UX issues are just polish"UX dead ends cause 1-star reviews. They're defects, not enhancements.
"The dismiss gesture handles it"fullScreenCover has no dismiss gesture. That's the trap.

Example Invocations

User: "My button isn't being read by VoiceOver" → See skills/accessibility-diag.md

User: "How do I support Dynamic Type?" → See skills/accessibility-diag.md

User: "Check my app for accessibility issues" → See skills/accessibility-diag.md

User: "Prepare for App Store accessibility review" → See skills/accessibility-diag.md

User: "Scan my app for accessibility issues automatically" → Launch accessibility-auditor agent

User: "How do I support Assistive Access?" → See skills/accessibility-diag.md

User: "How do I prepare my tvOS app for Large Text?" → See skills/accessibility-diag.md

User: "VoiceOver reads my screen in the wrong order after the window resizes" → See skills/accessibility-diag.md

User: "How do I support Button Shapes / the Large Content Viewer in my custom controls?" → See skills/accessibility-diag.md

User: "VoiceOver stops reading at the end of each page in my book app" → See skills/accessibility-diag.md

User: "How do I let users restyle subtitles or get generated captions in my video player?" → See skills/accessibility-diag.md

User: "Check for UX dead ends and dismiss traps" → See skills/ux-flow-audit.md

User: "My fullScreenCover has no way to dismiss" → See skills/ux-flow-audit.md

User: "Are there missing empty states in my app?" → See skills/ux-flow-audit.md

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