GitHub Engineering·Aug 24, 2026·11 read·midYour alt text passes automated checks. That doesn’t mean it’s any good.
This article explores the limitations of automated accessibility testing for alt text, highlighting that existing tools often validate presence without ensuring descriptive quality. The authors describe their approach to building a custom plugin for the GitHub Accessibility Scanner that differentiates between objective markup checks and subjective quality suspicions, ultimately integrating LLM-driven insights to flag potential content issues.
AI summary