What problem does it solve? Planning a website's structure is hard: pages get buried, URLs become inconsistent, and users can't find what they need. This Skill helps you design a clear information architecture — page hierarchy, navigation, URL patterns, and internal linking — before you build or restructure, so the site works for both users and search engines. ## Core Features & Use Cases - Page Hierarchy Design: Produces ASCII tree sitemaps and Mermaid visual sitemaps with navigation zones, following the 3-click rule and flat-vs-deep guidance. - URL & Navigation Specs: Generates URL maps with consistent patterns, header/footer navigation specs, and breadcrumb structures aligned to the URL hierarchy. - Internal Linking Plans: Builds hub-and-spoke linking models, orphan page audits, and cross-section link recommendations. - Use Case: You're restructuring a local marketplace site. Ask for a full architecture plan and receive a page tree, Mermaid sitemap, URL map table, navigation spec, and internal linking plan tailored to your audiences and goals. ## Quick Start Plan the site architecture for my local marketplace website, including the page hierarchy, URL structure, navigation, and internal linking plan.