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MD041 - Start Your Document with a Clear Title

Aliases: first-line-heading, first-line-h1

What this rule does

Ensures every document begins with a top-level heading (like # Title), giving your document a clear title and purpose from the start.

Why this matters

  • Professional appearance: Documents without titles look incomplete and unprofessional
  • Better navigation: Readers and tools can quickly identify what the document is about
  • Improved SEO: Search engines and documentation systems rely on document titles
  • Consistent structure: All documents in your project will have a uniform starting point

Examples

✅ Correct

# Getting Started Guide

Welcome to our documentation! This guide will help you...
# Project README

This project provides tools for...

Also correct with HTML headings:

<h1>Getting Started Guide</h1>

Welcome to our documentation! This guide will help you...

Also correct with HTML comments before the heading:

<!-- This is a comment -->
# Getting Started Guide

Welcome to our documentation! This guide will help you...

❌ Incorrect

Welcome to our documentation! This guide will help you...

## Installation

First, install the dependencies...
This project provides tools for...

Some more content here.

🔧 Fixed

# Documentation

Welcome to our documentation! This guide will help you...

## Installation

First, install the dependencies...

Configuration

[MD041]
level = 1  # Heading level required (1-6, default: 1)
front-matter-title = "title"  # Front matter field to use as title
front-matter-title-pattern = "^(title|header):"  # Regex pattern to match title fields in front matter

Automatic fixes

This rule does not provide automatic fixes. Adding a document title is a content decision that should be made by the author because:

  • Generic placeholders like # Title provide no value and require manual replacement anyway
  • Some files intentionally don't have titles (includes, SUMMARY.md for MkDocs, partial content files, etc.)
  • The tool cannot determine an appropriate title from the document content

Special cases

  • Documents with front matter containing a title field are considered valid
  • Empty documents are not checked
  • HTML comments at the start are ignored when checking
  • HTML heading tags (e.g., <h1>Title</h1>) are recognized as valid headings
  • The front_matter_title_pattern allows custom regex patterns for matching title fields

Learn more

  • MD001 - Keep heading levels organized
  • MD003 - Use consistent heading styles
  • MD025 - Use only one main title per document