How do you know when AI-generated content is actually good enough to ship?

Spent this week manually writing real content (facts, examples, categories) for 840+ programmatically-thin pages on a site of mine, after Google rejected AdSense twice for "low value content." Could've had an agent generate placeholder-style facts fast, but the whole point was making each page genuinely worth a visit, not just technically non-empty. Where's the line for you between "AI wrote this and it's fine" and "this needs an actual human judgment call"? Curious how others are drawing that line, especially on content-heavy or programmatic-SEO sites.