What problem does it solve? XML sitemaps are easy to get wrong: oversized files, broken URLs, stale lastmod dates, and deprecated tags all silently hurt crawl efficiency. This Skill validates existing sitemaps against Google's rules or generates clean, standards-compliant sitemaps from scratch. ## Core Features & Use Cases - Sitemap Discovery & Validation: Finds sitemaps via robots.txt declarations and common paths, then checks XML validity, the 50,000 URL / 50MB limits, HTTP 200 status of listed URLs, and lastmod accuracy. - Extension Sitemap Support: Validates image, video, and news sitemaps against their subtype-specific rules, including the 1,000-entry cap for news sitemaps. - Guided Generation: Builds new sitemaps from industry templates with quality gates that warn on thin programmatic pages (e.g., 30+ location pages) and split output with a sitemap index when limits are hit. - Use Case: Run an audit on a client's site to find that their sitemap includes redirected and noindexed URLs, then generate a corrected sitemap split by content type with a STRUCTURE.md documenting the architecture. ## Quick Start Analyze the sitemap for https://example.com and report any validation issues.
