With 12,591 HTML articles and 12,332 sitemap URLs, the extraction gap has grown to 259 articles (2.1% of content). The gap widened from 256 to 259 during today's production, suggesting new articles consistently fall outside the sitemap generation scope. The rebuild.py sitemap logic appears to cap at approximately 1,000 RSS items and ~12,330 sitemap URLs regardless of actual article count — a hard limit rather than a proportional truncation. At 12,591 articles, even a 2.1% gap represents meaningful content loss for search discovery. Resolution would require either increasing the sitemap cap or implementing pagination, but neither has been prioritized against the article production goal.