gdrive_sheet_write · GDrive MCP Server MCP: Risk & Policy

WHAT IT DOES

What gdrive_sheet_write does on GDrive MCP Server

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

WHY IT NEEDS A POLICY

Why gdrive_sheet_write needs a policy

This tool creates or modifies data in Google Sheets reversibly. While it modifies spreadsheet content, the operation is not destructive (data can be undone/restored via version history) and does not involve deletion. The blast radius is medium because erroneous writes could corrupt spreadsheet data or formulas, but the effect is typically recoverable.

From the tool's definition Tool name 'gdrive_sheet_write' and description 'Write data to a Google Sheet range' explicitly perform write operations on Google Sheets data.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

gdrive_sheet_write Rate-limited

gdrive_sheet_write 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": {
    "gdrive_sheet_write": {
      "limits": [
        {
          "counter": "gdrive_sheet_write_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 GDrive MCP Server, so you can run agents against it safely.

FAQ

Questions about gdrive_sheet_write

What does the gdrive_sheet_write tool do? +

Write data to a Google Sheet range. It is categorised as a Write tool in the GDrive 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 gdrive_sheet_write? +

Register the GDrive MCP Server MCP server in PolicyLayer and add a rule for gdrive_sheet_write: 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 GDrive MCP Server. Nothing to install.

What risk level is gdrive_sheet_write? +

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

Can I rate-limit gdrive_sheet_write? +

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

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

gdrive_sheet_write is provided by the GDrive MCP Server MCP server (shaikh3/gdrive-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.