Start with native, accessible controls

Links should navigate, buttons should perform actions, labels should identify inputs, and headings should describe sections. Native HTML exposes useful semantics to browsers, assistive technology, and agents without a large custom accessibility layer.

  • Use button, a, input, select, and details for their intended roles.
  • Keep accessible names aligned with visible labels.
  • Associate instructions and errors with the relevant field.
  • Preserve keyboard focus and logical reading order.

Make state changes observable

An agent or assistive technology user needs to know whether a menu opened, a form failed, a filter changed results, or a purchase completed. Update the DOM and appropriate states rather than relying only on color, animation, or a fleeting visual toast.

  • Use clear success and error text.
  • Expose expanded, selected, pressed, and invalid states when applicable.
  • Keep status messages close to the affected workflow.
  • Do not remove actionable elements before completion is confirmed.

Keep critical paths stable

Important actions should not depend on fragile pointer gestures, hidden hover controls, unpredictable overlays, or third-party scripts with no fallback. A straightforward contact, booking, or checkout path is easier to test and less likely to fail under automation.

  • Provide conventional URLs for primary navigation.
  • Keep forms usable at narrow widths and zoomed layouts.
  • Avoid unnecessary login and consent barriers.
  • Test the workflow with scripts delayed or partially unavailable.

Test people first, agents second

Automated agent tests can reveal brittle interfaces, but they do not replace accessibility testing with assistive technology or representative users. Treat agent compatibility as another consumer of a clear interface, not the purpose of accessibility work.

  • Run keyboard and screen-reader spot checks.
  • Test browser automation against the same core tasks.
  • Review screenshots, DOM, and accessibility-tree output.
  • Fix ambiguous interactions instead of adding instructions for one tool.

Official references

FAQ

Does an agent-friendly site require special schema?

No universal agent schema is required. Clear HTML, accessibility, stable data, and provider-supported integrations are the practical foundation.

Should ARIA be added to every element?

No. Prefer native semantic HTML and add ARIA only where it accurately supplies missing roles, names, properties, or states.

Will accessibility guarantee an AI agent can complete a task?

No. It improves interpretability and usability, but agent capability, permissions, browser behavior, and site security also matter.

Keep the Next Step Small

Use the related guides to confirm what the page needs. Ask for support only when the change reaches code, templates, or server settings you do not want to guess at.

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