Source: https://my.remarkbox.com/41a64c95-4208-11e9-9d31-040140774501 Snapshot: 2026-05-05T00:08:30Z Generator: Remarkbox 763cacb This is a subthread snapshot. The living document lives at the source URI above — it may have been edited, extended, or replied-to since.

The soon-to-be-released MultiMarkdown Composer actually does something just like this as you type. It highlights reference links that actually point to something, but not those that are just brackets without a definition. As of now, it doesn't specifically highlight the "failed" links in red, just the "working" links. But that could potentially be a feature down the road.

Source: https://my.remarkbox.com/41a64c95-4208-11e9-9d31-040140774501
Snapshot: 2026-05-05T00:08:30Z
Generator: Remarkbox 763cacb