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Modal Accessibility

Design
modal-accessibility

Modal Accessibility is an Agent Skill for design published in the thedaviddias/Front-End-Checklist repository on GitHub: a SKILL.md instruction file an AI agent can load to do this task.

Use when reviewing rendered HTML, interactive components, or design-system patterns related to Make modal dialogs keyboard accessible. Check native semantics first, then inspect keyboard behavior, focus flow, accessible names, and screen-reader output where relevant.

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How to use this skill

Bring this guide into your coding agent with a prompt tailored to the tool you use.

  1. Open your project in Codex.
  2. Copy and paste the prompt below.
  3. Review files and risks before approving any action.
Prompt to paste
Inspect the Agent Skill at https://github.com/thedaviddias/Front-End-Checklist/blob/HEAD/skills/modal-accessibility/SKILL.md and all supporting files. Report provenance, permissions, scripts, dependencies, and security risks. Propose an exact installation into .agents/skills/modal-accessibility, but wait for my approval before writing files or running scripts.

Copying this prompt does not install or run the skill. Review third-party files before use.

Make modal dialogs keyboard accessible

Without proper focus trapping and keyboard handling, modal dialogs are invisible traps for keyboard users—they can't navigate, can't escape, and can't complete tasks.

Quick Reference

  • Use role='dialog' and aria-modal='true' on the modal container
  • Trap focus inside the modal—Tab should cycle within modal only
  • Close on Escape key press and return focus to trigger element
  • Add aria-labelledby pointing to the modal title

Check

Verify modals have proper ARIA roles, focus trapping, keyboard dismissal (Escape), and return focus on close.

Fix

Implement accessible modals using role='dialog', aria-modal='true', focus trapping, and proper keyboard handling.

Explain

Explain the accessibility requirements for modal dialogs including focus management, ARIA attributes, and keyboard interaction.

Code Review

Review the rendered markup and interactive states that affect Make modal dialogs keyboard accessible. Flag exact elements, roles, labels, focus behavior, or keyboard interactions that violate the rule, and note how to verify the fix with browser accessibility tooling or assistive tech.

For full implementation details, code examples, and framework-specific guidance, see references/rule.md.

Rule page: https://frontendchecklist.io/en/rules/accessibility/modal-accessibility