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Win-10-MCP-Server---Simple-persistant-logging

by trevorwilkerson

Development/DebuggingMCP ServerLoggingFile BackupDebuggingNode.jsPersistent Logging

This server modification provides persistent logging for MCP Servers, specifically addressing issues with incomplete file writes. It creates backups of files before writing and logs file activity to aid in debugging and auditing.

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What is Win-10-MCP-Server---Simple-persistant-logging?

This is a modified version of an MCP server (likely @modelcontextprotocol/server-filesystem) that adds persistent logging and file backup functionality. It aims to address issues where the server might not completely write files, leading to data loss or corruption.

How to use Win-10-MCP-Server---Simple-persistant-logging?

  1. Create logger.mjs in your project root (as provided in the README).
  2. Modify the index.js file (located in C:\Users\TrevorW\AppData\Roaming\npm\node_modules\@modelcontextprotocol\server-filesystem\dist on the author's system) with the code provided in the README, specifically the write_file case within the handleOperation function.
  3. Ensure the necessary dependencies (fs, path, url) are available in your Node.js environment.

Key features of Win-10-MCP-Server---Simple-persistant-logging

  • Automatic file backups before writing

  • Detailed logging of file operations (writes, backups)

  • Validation of file paths to prevent unauthorized access

  • JSON response format for compatibility with Claude Desktop App

  • Error handling and logging for failed operations

Use cases of Win-10-MCP-Server---Simple-persistant-logging

  • Debugging file writing issues in MCP servers

  • Auditing file modifications

  • Protecting against data loss due to incomplete writes

  • Providing a history of file changes

  • Integrating with Claude Desktop App for improved feedback

FAQ from Win-10-MCP-Server---Simple-persistant-logging

Why create backups?

To prevent data loss or corruption if the server fails to write the entire file.

Where are the logs stored?

Logs are stored in a logs directory relative to the logger.mjs file, in a file named KAN_server.log.

What does the validatePath function do?

It validates the provided file path to prevent unauthorized access and directory traversal.

Why is the response formatted as JSON?

To ensure compatibility with the Claude Desktop App, which expects responses in JSON format.

What happens if the log file cannot be written to?

The error is logged to console.error without disrupting the main flow of the application.