copyFile · Google Docs, Drive & Sheets MCP Server MCP

WHAT IT DOES

What copyFile does on Google Docs, Drive & Sheets MCP Server

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

WHY IT NEEDS A POLICY

Why copyFile needs a policy

copyFile creates a new file resource in Google Drive, which is a reversible write operation. It does not execute code, delete data, move money, or have destructive effects. The severity is medium because unintended file duplication could consume storage quota and clutter the workspace, but the operation is reversible (the copy can be deleted).

From the tool's definition Tool description states 'Creates a copy of a file or document in Google Drive' — this is a create operation that adds new data to the system.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

copyFile Rate-limited

copyFile 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": {
    "copyFile": {
      "limits": [
        {
          "counter": "copyfile_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 Docs, Drive & Sheets MCP Server, so you can run agents against it safely.

FAQ

Questions about copyFile

What does the copyFile tool do? +

Creates a copy of a file or document in Google Drive. Returns the new copy. It is categorised as a Write tool in the Google Docs, Drive & Sheets 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 copyFile? +

Register the Google Docs, Drive & Sheets MCP Server MCP server in PolicyLayer and add a rule for copyFile: 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 Docs, Drive & Sheets MCP Server. Nothing to install.

What risk level is copyFile? +

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

Can I rate-limit copyFile? +

Yes. Add a rate_limit block to the copyFile 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 copyFile completely? +

Set action: deny in the PolicyLayer policy for copyFile. 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 copyFile? +

copyFile is provided by the Google Docs, Drive & Sheets MCP Server MCP server (rulords/google-docs-mcp-personal). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.