shadcn/ui

The entire report: 4 components, 50 scoring checks, none failing. Each check cites the clause it measures; the per-component pages carry the failure detail and the command that reproduces it.

Maintainer response

Findings were delivered privately on 2026-08-19 in this thread, with the adapter source and fourteen days to reply before publication. The combobox result is held back until its pattern match is settled, see the unverified note above.

No reply inside the notice period.

dialog · 100%full detail

Every check for the shadcn/ui dialog, with its verdict.
Check	Verdict	Severity
The control that opens the dialog has an accessible namedialog.trigger-has-accessible-name	pass	serious
The trigger can be reached with the Tab keydialog.trigger-is-focusable	pass	blocker
Pressing Enter on the focused trigger opens the dialogdialog.opens-on-enter	pass	blocker
The dialog exposes role=dialog or role=alertdialogdialog.has-dialog-role	pass	serious
The dialog has an accessible namedialog.has-accessible-name	pass	serious
Focus moves into the dialog when it opensdialog.focus-moves-in	pass	blocker
Tab never reaches operable content behind the dialogdialog.focus-trapped-forward	pass	blocker
Shift+Tab never reaches operable content behind the dialogdialog.focus-trapped-backward	pass	blocker
Tab never leaves the dialog, even brieflydialog.tab-never-leaves-dialog	pass	moderate
Escape closes the dialogdialog.escape-closes	pass	serious
Closing the dialog returns focus to the triggerdialog.focus-restored-on-close	pass	serious
Content behind the dialog is hidden from assistive technologydialog.background-inert	pass	serious
The close control has an accessible namedialog.close-has-accessible-name	pass	moderate

menu · 100%full detail

Every check for the shadcn/ui menu, with its verdict.
Check	Verdict	Severity
The menu button has an accessible namemenu.trigger-has-accessible-name	pass	serious
The menu button declares that it opens a menumenu.trigger-has-haspopup	pass	serious
aria-expanded is present and false before the menu opensmenu.trigger-collapsed-by-default	pass	moderate
Enter opens the menumenu.opens-on-enter	pass	blocker
Down Arrow opens the menumenu.opens-on-down-arrow	pass	serious
aria-expanded becomes true when the menu opensmenu.expanded-state-communicated	pass	serious
The popup exposes role=menumenu.has-menu-role	pass	serious
Each item exposes role=menuitemmenu.items-have-menuitem-role	pass	serious
Opening the menu moves to its first itemmenu.focus-enters-menu-on-open	pass	blocker
Down Arrow moves to the next itemmenu.arrow-moves-between-items	pass	blocker
Escape closes the menumenu.escape-closes	pass	serious
Closing the menu returns focus to the buttonmenu.focus-restored-on-close	pass	serious
Each item has an accessible namemenu.item-has-accessible-name	pass	serious

tabs · 100%full detail

Every check for the shadcn/ui tabs, with its verdict.
Check	Verdict	Severity
The tab container exposes role=tablisttabs.tablist-has-role	pass	serious
Each tab exposes role=tabtabs.tabs-have-tab-role	pass	serious
Each tab has an accessible nametabs.tab-has-accessible-name	pass	serious
The selected panel exposes role=tabpaneltabs.panel-has-tabpanel-role	pass	serious
Exactly one tab is marked selectedtabs.selected-tab-communicated	pass	serious
The panel takes its accessible name from its tabtabs.panel-labelled-by-tab	pass	moderate
The tab references its panel with aria-controlstabs.tab-controls-panel	pass	moderate
Unselected panels are hidden from assistive technologytabs.unselected-panels-not-exposed	pass	serious
Tab moves focus to the selected tabtabs.tab-key-reaches-selected-tab	pass	blocker
The tablist is a single stop in the tab sequencetabs.tablist-is-one-tab-stop	pass	serious
Right Arrow moves focus to the next tabtabs.arrow-moves-between-tabs	pass	blocker
Keyboard navigation can select a different tabtabs.activation-selects-tab	pass	blocker
Selecting a tab reveals its paneltabs.activation-reveals-panel	pass	blocker

accordion · 100%full detail

Every check for the shadcn/ui accordion, with its verdict.
Check	Verdict	Severity
Each header control sits inside a headingaccordion.header-is-heading	pass	moderate
Each header control exposes role=buttonaccordion.trigger-is-button	pass	serious
Each header control has an accessible nameaccordion.trigger-has-accessible-name	pass	serious
Collapsed sections expose aria-expanded=falseaccordion.collapsed-state-communicated	pass	serious
The header control references its panel with aria-controlsaccordion.trigger-controls-panel	pass	moderate
Collapsed panels are hidden from assistive technologyaccordion.collapsed-panel-not-exposed	pass	serious
Enter expands the focused sectionaccordion.enter-expands	pass	blocker
Space expands the focused sectionaccordion.space-expands	pass	serious
An expanded panel is exposed and reveals its contentaccordion.expanded-panel-exposed	pass	blocker
Tab moves between accordion headersaccordion.headers-are-tab-stops	pass	serious
Activating an expanded header collapses itaccordion.collapses-again	pass	serious

What this cannot tell you

A high score means no violations were detected by automated testing. It does not mean the component is accessible. Automated tests cannot judge whether a label is meaningful, whether a reading order makes sense, or whether the experience is usable with a screen reader. Those need human judgement and disabled users. This is a floor, not a ceiling.