# MCP Diff Editor A powerful MCP-integrated diff editor for modifying files with preview capabilities. ## Features - Edit files through a web interface with real-time diff preview - Apply changes using unified diff format or complete file replacement - Create backups automatically before making changes - Restore from previous backups - View examples of common diff operations - Security controls to prevent unauthorized file access ## Usage as MCP The MCP diff editor provides the following methods: ### `start` Start the diff editor server ### `stop` Stop the diff editor server ### `status` Check server status ### `edit_file` Open the diff editor for a specific file - Parameters: - `file_path`: Path to the file to edit ### `apply_diff` Apply a diff to a file - Parameters: - `file_path`: Path to the file to modify - `diff_content`: Diff content to apply ### `preview_diff` Preview a diff without applying it - Parameters: - `file_path`: Path to the file to preview changes for - `diff_content`: Diff content to preview ## Example Usage ```javascript const mcp = require('mcp'); const diffEditor = mcp.get('diff_editor'); // Start the server await diffEditor.start(); // Open the editor for a specific file const result = await diffEditor.edit_file({ file_path: '/path/to/your/file.txt' }); // Get the URL to access the editor console.log(result.url); // Apply a diff to a file await diffEditor.apply_diff({ file_path: '/path/to/your/file.txt', diff_content: `@@ -5,7 +5,7 @@ Sample Page -

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` }); ``` ## Environment Variables - `PORT`: HTTP port (default: 3009) - `MCP_FILE_DIR`: Directory to use as base for file operations (default: current directory) - `MCP_ALLOW_ANY_PATH`: Set to 'true' to allow accessing files outside the working directory ## Installation This module is intended to be used as an MCP in the `/Users/samihalawa/Documents/MCP` directory and should be automatically available in the MCP interface after installation.