Frontmatter
Configure page titles, descriptions, icons, sidebar overrides, and SEO metadata with the YAML frontmatter block at the top of every MDX file.
Every MDX file starts with a YAML block between --- markers. This metadata controls your page title, sidebar appearance, and how the page looks when shared on social media or in search results.
Basic Frontmatter
Every page needs at least a title:
---
title: Getting Started
description: Learn the basics in 5 minutes
---
Available Fields
Required
| Field | Type | Description |
|---|---|---|
title | string | Page title shown in navigation and browser tab |
Recommended
| Field | Type | Description |
|---|---|---|
description | string | Brief summary for SEO and search results (50-160 chars) |
Optional
| Field | Type | Default | Description |
|---|---|---|---|
icon | string | - | Font Awesome icon shown next to the page title in sidebar navigation |
sidebarTitle | string | title | Shorter title for sidebar navigation |
mode | string | - | Set to "wide" for full-width layout |
hideFooter | boolean | false | Hide the social footer on this page |
rss | boolean | false | Enable RSS feed generation from Update components on this page |
Examples
Standard Documentation Page
---
title: Authentication
description: Secure your API with OAuth 2.0 and API keys
icon: lock
---
Long Title with Sidebar Override
---
title: Configuring Single Sign-On with SAML 2.0
sidebarTitle: SSO Setup
description: Set up enterprise SSO for your organization
---
The full title appears on the page, while the shorter sidebarTitle keeps navigation clean.
Wide Layout
---
title: API Reference
description: Complete API documentation
mode: wide
---
Wide mode removes the table of contents and expands content to full width. Useful for API reference pages or content with wide tables.
Hide Footer
---
title: Custom Landing
description: A focused landing page experience
hideFooter: true
---
Use hideFooter for landing pages, changelog pages, or any page where you want a cleaner bottom section without social links.
SEO Best Practices
Your title appears in:
- Browser tabs
- Search engine results
- Navigation sidebar
- Social media shares
Keep titles under 60 characters. Front-load important keywords.
# Good - clear and keyword-rich
title: Deploy to Production
# Avoid - vague or too long
title: How to Deploy Your Application to Production ServersDescriptions appear in search results and social previews. Aim for 50-160 characters that:
- Summarize the page content
- Include relevant keywords
- Entice users to click
# Good - actionable and specific
description: Deploy your docs to production in under 2 minutes with zero configuration
# Avoid - generic or missing
description: Documentation pageIcons help users scan navigation quickly. Use the same icon for related pages:
| Topic | Suggested Icon |
|---|---|
| Getting started | rocket |
| Authentication | lock |
| API reference | code |
| Settings | gear |
| Billing | credit-card |
Browse icons at Font Awesome.
Validation
Jamdesk validates frontmatter when building. Common errors:
Error: Page "api/auth.mdx" is missing required field: title
Fix: Add the title field to your frontmatter.
Error: Invalid frontmatter in "guide.mdx": unexpected token
Fix: Check for:
- Missing quotes around strings with special characters
- Incorrect indentation
- Missing colons after keys
