ReadonlyaltLists figures in a tagged document that have no alternate text and proposes a description,
or decorative marking, for each (ALT). Descriptions need the custom provider. Nothing is
written until apply, which returns a new document.
ReadonlyanswersAnswers questions from the document, citing the sentences they came from (ANS).
The web has no on-device prompt API a page can use, so answers need a custom provider.
ReadonlydiffCompares this document (the original) with a revised version: sentences aligned without a model, and each reworded pair labelled as a change in meaning or wording by the custom provider.
ReadonlyformsProposes values for the document's form fields from a profile the host passes in (FORM).
The synonym list runs on every device; the custom provider matches fields it cannot.
The profile is not stored. Nothing is written until apply.
Proposes form fields for the blanks of a flat PDF — lines, boxes, underscores (FORM-7).
ReadonlyredactionsSuggests likely personal data to redact (RED). Patterns run on every device; the custom
provider, when configured, adds names, addresses, dates of birth and ID numbers. Nothing
is written until apply.
ReadonlyremediationProposes tags and a reading order for an untagged document (REM), by rules on the page
objects, identically on every platform. Nothing is written until apply, which returns a
new document; describe its figures with altText afterwards.
ReadonlysummariesSummarises the document or a page range (SUM).
Downloads the on-device summariser. AVL-4 forbids the SDK starting a download on its own, so this exists to be called by the host and nowhere else.
The entry point. One instance per document.
Every feature reports availability separately (AVL-2) and re-checks it on each call (AVL-3), because the user can turn the platform's AI off mid-session.