Accessibility tree
AssessTechniques
The browser-exposed structure used by assistive technologies to interpret page elements.
Why it's here
Placed in Assess: 1 article(s) of evidence from 1 source(s), led by product launches, with 0 in the last 30 days. Confidence 24%. Low accumulated evidence, so it defaults conservatively pending more signal.
Evidence (1)
- 5GitHub Blog·8/24/2026product_launchGitHub adds an alt text plugin to improve accessibility checks
GitHub describes how it built an alt text plugin for the GitHub Accessibility Scanner to catch not only missing alt text but also low-quality cases such as filenames, placeholders, and repeated labels. The post explains the tradeoff between deterministic rules and model-based judgments, and how the team tuned the checker to avoid false positives that would cause developers to disable it.