Why Static Accessibility Scanners Miss What AI Agents Hit

Short summary

Static accessibility scanners evaluate the DOM at initial render and miss issues that only appear during interaction — exactly where AI agents operate. Three common patterns pass scans but break agents: modals without dialog roles, error messages without live regions, and custom date pickers that trap keyboard focus. As AI agents increasingly automate web tasks, these accessibility gaps now silently terminate automated workflows, not just degrade individual user sessions.

• •Static scanners check initial DOM state but AI agents walk through every interaction state
• •Modals without ARIA dialog roles, errors without live regions, and focus-trapping pickers all pass scans but break agents
• •Accessibility gaps now cost automated task completion, not just human user experience

Generated with AI, which can make mistakes.