get_group_file_url

What get_group_file_url does on NapCat MCP Server

AI agents call get_group_file_url to retrieve information from NapCat MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Why get_group_file_url is rated Low

This tool retrieves file download URLs from a group file system, which is a read-only operation that queries data and returns metadata. No data is modified, deleted, or executed. The blast radius is minimal—obtaining a URL does not inherently expose sensitive data beyond what a group member might already access, and URLs alone do not execute operations.

From the tool's definition Tool name 'get_group_file_url' and description 'Get group file download URL' indicate retrieval of a URL resource without modification, deletion, or execution of external operations.

The rule that runs get_group_file_url safely

PolicyLayer is an MCP gateway: it sits between your AI agents and NapCat MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For get_group_file_url, this is the rule to start with:

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_group_file_url": {}
  }
}

Questions about get_group_file_url