Integrations
Uses TypeScript for implementing the MCP server that provides CEDARScript capabilities for code manipulation
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:
Build the server:
For development with auto-rebuild:
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
Debugging
Since MCP servers communicate over stdio, debugging can be challenging. We recommend using the MCP Inspector, which is available as a package script:
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"
topackage.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 ofrequire()
for module imports - Use
.js
extension when importing local files
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local-only server
The server can only run on the client's local machine because it depends on local resources.
Tools
Implements CEDARScript, a SQL-like language for code manipulation.
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