drive_share · Google Drive MCP Server MCP: Risk & Policy

WHAT IT DOES

What drive_share does on Google Drive MCP Server

AI agents use drive_share to create or update resources in Google Drive MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Google Drive MCP Server environment.

WHY IT NEEDS A POLICY

Why drive_share needs a policy

Sharing files changes their permission state and accessibility, affecting who can access data. While reversible, this is a high-severity operation because incorrect sharing can expose sensitive files to unintended recipients, causing information disclosure.

From the tool's definition Tool name 'drive_share' and description 'Manage file permissions' indicate modification of access control metadata.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

drive_share Rate-limited

drive_share stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "drive_share": {
      "limits": [
        {
          "counter": "drive_share_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Google Drive MCP Server, so you can run agents against it safely.

FAQ

Questions about drive_share

What does the drive_share tool do? +

Manage file permissions. It is categorised as a Write tool in the Google Drive MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on drive_share? +

Register the Google Drive MCP Server MCP server in PolicyLayer and add a rule for drive_share: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Google Drive MCP Server. Nothing to install.

What risk level is drive_share? +

drive_share is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit drive_share? +

Yes. Add a rate_limit block to the drive_share rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block drive_share completely? +

Set action: deny in the PolicyLayer policy for drive_share. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides drive_share? +

drive_share is provided by the Google Drive MCP Server MCP server (rishipradeep-think41/google-drive-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.