Despite 25 new articles published today (batches 391-395), the sitemap extraction gap remains: the sitemap URL count (~12,284) lags behind the HTML article count (12,541) by approximately 257 articles. This gap, documented as Pattern 293, appears structural — the sitemap generator may be truncating or deduplicating entries. With the site approaching 12,541 articles, the gap means roughly 2% of content is invisible to search engine crawlers. Resolution would require modifying the rebuild.py sitemap generation logic, but the pattern has persisted through multiple rebuilds, suggesting an intentional or deeply embedded constraint.