Haskell Hackage MCP

🚀 Hackage Documentation Machine Control Program (MCP)

The Machine Control Program (MCP) provides an interface for AI assistants to access Haskell documentation from Hackage. It enables AI models to retrieve accurate and up - to - date documentation for specific Haskell modules, enhancing AI's ability to handle Haskell programming despite limited training data in this area.

🚀 Quick Start

The Machine Control Program (MCP) serves as a bridge for AI assistants to access Haskell documentation from Hackage. By allowing AI models to fetch precise and current documentation of specific Haskell modules, it significantly enhances AI's capabilities in dealing with Haskell programming, even when the training data in this domain is scarce.

❓ Problem Statement

AI language models generally have insufficient training data for Haskell compared to mainstream programming languages, leading to the following issues:

• Lower accuracy in Haskell code generation.
• Difficulty in understanding Haskell's unique features and abstract concepts.
• Inaccurate or outdated information about Haskell libraries and modules.

This tool fills this gap by retrieving authoritative documentation from Hackage in real - time.

✨ Features

• Retrieve documentation for any module in a specific package.
• Specify the exact package version to ensure accuracy.
• Provide clear, text - based output that is easy for AI assistants to consume.

📦 Installation

1. Ensure that Python 3.7+ is installed.
2. Install the required dependencies:

   pip install httpx beautifulsoup4 fastmcp
   

💻 Usage Examples

Basic Usage

You can use this MCP with any AI assistant that supports the MCP protocol.

Run the Server

python main.py

This will start the MCP server using standard I/O transmission.

Advanced Usage

API

MCP provides the following tool:

get_docs(package, version, module)

Retrieve the documentation for a specific Haskell module.

Parameters:

• package (string): The Hackage package name (e.g., "lens", "yesod - persistent").
• version (string): The package version (e.g., "5.0.0", "2.10.0").
• module (string): The name of the module to look up (e.g., "Control.Lens", "Database.Persist").

Returns:

• The extracted documentation text of the specified module, or an error message if the retrieval fails.

Example:

# Get the documentation for Control.Lens in lens 5.0.0
get_docs("lens", "5.0.0", "Control.Lens")

# Get the documentation for Data.Vector.Algorithms in vector - algorithms 0.8.0
get_docs("vector - algorithms", "0.8.0", "Data.Vector.Algorithms")

📚 Documentation

Use Cases

1. Learning Haskell Libraries: Obtain detailed information about specific modules when working with AI.
2. Understanding Type Signatures: Access accurate type information for functions in Haskell modules.
3. Exploring Module Hierarchy: Understand the organization of modules in Haskell packages.
4. Verifying AI - Generated Code: Compare AI suggestions with official documentation.

Advantages

• Grants AI access to accurate and up - to - date Haskell documentation.
• Improves the quality of AI - generated Haskell code.
• Enhances AI's ability to explain Haskell concepts with authoritative references.
• Reduces speculation when discussing Haskell libraries.

Limitations

• Requires an internet connection to access Hackage.
• Only provides documentation content, not implementation code.
• The quality of documentation varies across different Haskell packages.

Contribution

Contributions to improve this tool are welcome! Some potential areas for improvement include:

• Adding support for downloading and parsing package source code.
• Implementing caching to reduce network requests.
• Expanding to support other Haskell documentation sources.

📄 License

[Specify your license here]