extension_path

What extension_path does on Agent Browser

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

Why extension_path is rated Low

This is a Read operation—it retrieves file system information about an extension's location without modifying, deleting, or executing anything. However, severity is elevated to 'medium' because the returned path could be used by a malicious agent in conjunction with other tools on this server (particularly execute_js or cdp_command) to locate, inspect, or manipulate extension code that may contain sensitive data or…

From the tool's definition Tool retrieves the absolute path to a Chrome extension directory. The description explicitly states 'Get absolute path' which is a read/query operation with no modification or side effects.

The rule that runs extension_path safely

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

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

Questions about extension_path