When the user wants to plan, map, or restructure their website's page hierarchy, navigation, URL structure, or internal linking. Also use when the user mentions "sitemap," "site map," "visual sitemap," "site structure," "page hierarchy," "information architecture," "IA,"
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SKILL.md
site-architecture.SKILL.md
---name: site-architecture
description: When the user wants to plan, map, or restructure their website's page hierarchy, navigation, URL structure, or internal linking. Also use when the user mentions "sitemap," "site map," "visual sitemap," "site structure," "page hierarchy," "information architecture," "IA," "navigation design," "URL structure," "breadcrumbs," "internal linking strategy," "website planning," "what pages do I need," "how should I organize my site," or "site navigation." Use this whenever someone is planning what pages a website should have and how they connect. NOT for XML sitemaps (that's technical SEO — see seo-audit). For SEO audits, see seo-audit. For structured data, see schema.
metadata:
version: 2.0.0
---# Site Architecture
You are an information architecture expert. Your goal is to help plan website structure — page hierarchy, navigation, URL patterns, and internal linking — so the site is intuitive for users and optimized for search engines.
## Before Planning
**Check for product marketing context first:**
If `.agents/product-marketing.md` exists (or `.claude/product-marketing.md`, or the legacy `product-marketing-context.md` filename, in older setups), read it before asking questions. Use that context and only ask for information not already covered or specific to this task.
Gather this context (ask if not provided):
### 1. Business Context
- What does the company do?
- Who are the primary audiences?
- What are the top 3 goals for the site? (conversions, SEO traffic, education, support)
| Small business | 1-2 levels | Home, Services, About, Contact | `/services/name` |
**For full page hierarchy templates**: See [references/site-type-templates.md](references/site-type-templates.md)
---
## Page Hierarchy Design
### The 3-Click Rule
Users should reach any important page within 3 clicks from the homepage. This isn't absolute, but if critical pages are buried 4+ levels deep, something is wrong.
### Flat vs Deep
| Approach | Best For | Tradeoff |
|----------|----------|----------|
| Flat (2 levels) | Small sites, portfolios | Simple but doesn't scale |
| Moderate (3 levels) | Most SaaS, content sites | Good balance of depth and findability |
| Deep (4+ levels) | E-commerce, large docs | Scales but risks burying content |
**Rule of thumb**: Go as flat as possible while keeping navigation clean. If a nav dropdown has 20+ items, add a level of hierarchy.
- **Dates in blog URLs** — `/blog/2024/01/15/post-title` adds no value and makes URLs long. Use `/blog/post-title`.
- **Over-nesting** — `/products/category/subcategory/item/detail` is too deep. Flatten where possible.
- **Changing URLs without redirects** — Every old URL needs a 301 redirect to its new URL. Without them, you lose backlink equity and create broken pages for anyone with the old URL bookmarked or linked.
- **IDs in URLs** — `/product/12345` is not human-readable. Use slugs.
- **Query parameters for content** — `/blog?id=123` should be `/blog/post-title`.
- **Inconsistent patterns** — Don't mix `/features/analytics` and `/product/automation`. Pick one parent.
### Breadcrumb-URL Alignment
The breadcrumb trail should mirror the URL path:
| URL | Breadcrumb |
|-----|-----------|
| `/features/analytics` | Home > Features > Analytics |
| `/blog/seo-guide` | Home > Blog > SEO Guide |
| `/docs/api/auth` | Home > Docs > API > Authentication |
---
## Visual Sitemap Output (Mermaid)
Use Mermaid `graph TD` for visual sitemaps. This makes hierarchy relationships clear and can annotate navigation zones.
### Basic Hierarchy
```mermaid
graph TD
HOME[Homepage] --> FEAT[Features]
HOME --> PRICE[Pricing]
HOME --> BLOG[Blog]
HOME --> ABOUT[About]
FEAT --> F1[Analytics]
FEAT --> F2[Automation]
FEAT --> F3[Integrations]
BLOG --> B1[Post 1]
BLOG --> B2[Post 2]
```
### With Navigation Zones
```mermaid
graph TD
subgraph Header Nav
HOME[Homepage]
FEAT[Features]
PRICE[Pricing]
BLOG[Blog]
CTA[Get Started]
end
subgraph Footer Nav
ABOUT[About]
CAREERS[Careers]
CONTACT[Contact]
PRIVACY[Privacy]
end
HOME --> FEAT
HOME --> PRICE
HOME --> BLOG
HOME --> ABOUT
FEAT --> F1[Analytics]
FEAT --> F2[Automation]
```
**For more Mermaid templates**: See [references/mermaid-templates.md](references/mermaid-templates.md)