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name: android-accessibility description: Expert checklist and prompts for auditing and fixing Android accessibility issues, especially in Jetpack Compose.

Android Accessibility Checklist

Instructions

Analyze the provided component or screen for the following accessibility aspects.

1. Content Descriptions

• Check: Do Image and Icon composables have a meaningful contentDescription?
• Decorative: If an image is purely decorative, use contentDescription = null.
• Actionable: If an element is clickable, the description should describe the action (e.g., "Play music"), not the icon (e.g., "Triangle").

2. Touch Target Size

• Standard: Minimum 48x48dp for all interactive elements.
• Fix: Use MinTouchTargetSize or wrap in Box with appropriate padding if the visual icon is smaller.

3. Color Contrast

• Standard: WCAG AA requires 4.5:1 for normal text and 3.0:1 for large text/icons.
• Tool: Verify colors against backgrounds using contrast logic.

4. Focus & Semantics

• Focus Order: Ensure keyboard/screen-reader focus moves logically (e.g., Top-Start to Bottom-End).
• Grouping: Use Modifier.semantics(mergeDescendants = true) for complex items (like a row with text and icon) so they are announced as a single item.
• State descriptions: Use stateDescription to describe custom states (e.g., "Selected", "Checked") if standard semantics aren't enough.

5. Headings

• Traversal: Mark title texts with Modifier.semantics { heading() } to allow screen reader users to jump between sections.

Example Prompts for Agent Usage

• "Analyze the content description of this Image. Is it appropriate?"
• "Check if the touch target size of this button is at least 48dp."
• "Does this custom toggle button report its 'Checked' state to TalkBack?"