This is not the final website. It is a demo of the real tool working, made for Y Combinator.
AxisRemedy

20-003 An AS entry appears in an Optional Content Configuration Dictionary.

An optional-content configuration contains an AS entry.

Checkpoint
20: Optional Content
ISO 14289-1 (PDF/UA-1) clause
7.10-2
Test type in the protocol
Machine-testable
Applies to
A single object

How AxisRemedy handles it

Tested by the app. AxisRemedy tests this condition itself. For each document it records passed, failed or not applicable, and for every failure the object and the page.

What the check covers

Reads /D and every /Configs entry of the catalog's /OCProperties.

Repairs that target it

Repairs are optional. The few that could change how a page looks, such as embedding a missing font, need your explicit consent.