markdownlint-mcp-server

What is markdownlint-mcp-server?

A Model Context Protocol (MCP) server that validates markdown content against markdownlint rules. It is designed for AI/LLM integration and can be used by tools like Cursor to improve generated markdown quality.

How to use markdownlint-mcp-server?

Install via npm install markdownlint-mcp-server, then run as a CLI with markdownlint-mcp-server or import as a library. The server listens for MCP messages on stdio. Cursor can connect automatically; when generating markdown, Cursor sends content to the validate tool and uses the validation results to refine output.

Key features of markdownlint-mcp-server

• Validates markdown content using markdownlint
• Provides access to available markdownlint rules
• Supports custom markdownlint configuration
• Implements MCP protocol for AI/LLM integration
• Can be used by Cursor to validate generated markdown

Use cases of markdownlint-mcp-server

• Validating markdown generated by an AI assistant in real time
• Ensuring consistent markdown style across documentation projects
• Integrating custom rules and configs into automated markdown pipelines
• Using with Cursor to self-correct markdown output during generation

FAQ from markdownlint-mcp-server

What does the validate tool return?

It returns detailed error information including line numbers, rule descriptions, error details, and the range of text affected.

What tools does the server provide?

Two tools: validate (accepts markdown content and optional config) and rules (returns available markdownlint rules).

Does the server support custom configuration?

Yes. The validate tool accepts an optional config object that can override the default markdownlint recommended rules.

What are the system requirements?

Node.js (tested on 18.x and 20.x). Install via npm. No external authentication or database is required; the server communicates over stdio using the MCP protocol.