What problem does it solve? Planning or restructuring a website's information architecture is difficult: pages get buried, URLs become inconsistent, and users and search engines struggle to find content. This Skill guides the design of page hierarchy, navigation, URL patterns, and internal linking so a site is intuitive for users and optimized for search. ## Core Features & Use Cases - Page Hierarchy Design: Produces ASCII tree sitemaps and Mermaid visual sitemaps with navigation zones, applying the 3-click rule and flat-vs-deep tradeoffs. - Navigation & URL Specs: Defines header/footer/sidebar navigation, breadcrumbs, and consistent URL patterns per page type (features, blog, docs, integrations). - Internal Linking Plans: Builds hub-and-spoke linking models, orphan page audits, and cross-section link recommendations. - Use Case: A SaaS company restructuring its marketing site can get a full deliverable set — ASCII hierarchy, Mermaid sitemap, URL map table, navigation spec, and internal linking plan — tailored to its site type and existing URLs that need redirects. ## Quick Start Plan the site architecture for my SaaS marketing website, including the page hierarchy, URL structure, navigation, and internal linking plan.