What is Cedarscript Mcp

cedarscript-mcp is an MCP server that integrates CEDARScript grammar functionality, allowing users to manipulate code using SQL-like commands.

Use cases

Use cases for cedarscript-mcp include automated code refactoring, pattern-based code transformations, and executing complex code manipulation commands in development environments.

How to use

To use cedarscript-mcp, install the required dependencies with ‘npm install’, build the server using ‘npm run build’, and configure it in the Claude Desktop application by adding the server path to the configuration file.

Key features

Key features include SQL-like syntax for code operations, support for file and function targeting, regex-based pattern matching, and tools for executing CEDARScript commands such as file creation and manipulation.

Where to use

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cedardiff MCP Server

Edit files with CEDARScript grammar rules

This is a TypeScript-based MCP server that implements CEDARScript, a SQL-like language for code manipulation. It provides:

• A comprehensive grammar for code manipulation commands
• Tools for executing CEDARScript operations
• Support for complex pattern matching and transformations

Features

Grammar

• SQL-like syntax for code operations (DDL, DML)
• Support for file, function, class, and method targeting
• Pattern matching with regex, prefix/suffix, and indentation rules
• Block-level code manipulation capabilities

Tools

• edit_file - Execute CEDARScript commands
  • Takes script and working directory as parameters
  • Supports file creation, deletion, moving, and updating
  • Pattern-based code transformations

Implementation Status

Current testing has revealed:

• Command parsing works correctly
• Grammar supports complex operations
• File writing mechanism needs improvement
• Success messages returned but changes not persisted

Development

Install dependencies:

npm install

Build the server:

npm run build

For development with auto-rebuild:

npm run watch

Installation

To use with Claude Desktop, add the server config:

On MacOS: ~/Library/Application Support/Claude/claude_desktop_config.json
On Windows: %APPDATA%/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "cedardiff": {
      "command": "/path/to/cedardiff/build/index.js"
    }
  }
}

Debugging

Since MCP servers communicate over stdio, debugging can be challenging. We recommend using the MCP Inspector, which is available as a package script:

npm run inspector

The Inspector will provide a URL to access debugging tools in your browser.

ES Module Migration

The project has been migrated to use ES modules. Key changes include:

• Added "type": "module" to package.json
• Updated tsconfig.json to use "module": "ESNext"
• Converted import/export statements to ES module syntax
• Updated type definitions to be compatible with ES modules

Compatibility Notes

• Ensure you are using Node.js version 12 or higher
• Use import instead of require() for module imports
• Use .js extension when importing local files