devtools_accessibility

Accessibility tree and browser-reported issues. tree returns roles, names, and states for the page or a subtree (by ref/selector); node returns full properties for one element; check runs a quick audit (missing alt/labels/names, duplicate ids); issues lists problems Chrome reported (Audits domain: cookies, CORS, CSP, mixed content, deprecations, low contrast, quirks…) with affected node refs.

Parameters

integer

Target tab id from browser_tabs, which lists tabs across all windows. Defaults to the agent’s most recently opened usable tab, or the only usable tab. Otherwise select a listed tabId.

enum

required

One of: tree, node, check, issues.

string

Element ref from browser_snapshot, e.g. “e12”

string

integer

string

issues: filter by issue code substring, e.g. “Cookie”, “MixedContent”, “Cors”, “ContentSecurityPolicy”, “LowTextContrast”

string

boolean

Example

{
  "tabId": 1234,
  "action": "tree",
  "ref": "e12",
  "depth": 3
}

{
  "tabId": 1234,
  "action": "check"
}

{
  "tabId": 1234,
  "action": "issues"
}

Browser automation

Developer tools

devtools_accessibility

Parameters

Example

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Parameters

Example