AI-assisted technical content has a measurable hallucination problem. Codex and similar code-generation models fabricate package names and API references at rates between 5% and 22% depending on domain specificity ( Lin et al., EMNLP 2023 ). If you ship AI-assisted tutorials on your site, and most product teams do now, some of your CLI snippets, code samples, and JSON-LD schema fields are statistically likely to contain commands that do not exist. The fix is boring but specific. Copy-paste-execute every code block against the real binary before merge, and audit the structured data on the same page with the same rigor. Here is the process we run on our own technical pages, why the structured-data part is where most teams leak credibility, and what came out of our last pass. The class of failure The fabrications share a recognizable shape.…