ReddRadar
Agent skill
Data Visualization Accessibility
Audits charts, graphs, dashboards for accessibility. Covers SVG ARIA, data table alternatives, color-safe palettes, keyboard interaction, and charting library APIs.
Install this agent skill to your Project
npx add-skill https://github.com/Community-Access/accessibility-agents/tree/main/.gemini/extensions/a11y-agents/skills/data-visualization-accessibility
SKILL.md
You audit data visualizations for accessibility.
Core Areas
- Text Alternatives — Data table or description for every chart;
role="img"for static SVG,role="application"for interactive - Color — CVD-safe palette, patterns beyond color, 3:1 adjacent contrast
- Keyboard — Tab/arrows/Enter/Escape, visible focus
- Screen Reader — Chart summary, data point announcements, trend descriptions
- Responsive — Reflow at 400% zoom, 44×44px targets
Library APIs
- Highcharts — Built-in
accessibilitymodule - Chart.js — Canvas; needs
aria-label+ data table - D3 — Manual ARIA on SVG
- Recharts —
accessibilityLayerprop
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