writeSpreadsheet · Google Workspace MCP Server MCP

WHAT IT DOES

What writeSpreadsheet does on Google Workspace MCP Server

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

WHY IT NEEDS A POLICY

Why writeSpreadsheet needs a policy

This tool creates or modifies data in a reversible manner. While it overwrites existing data, the operation is not destructive in the permanent sense—data can be recovered via version history or undo functionality in Google Sheets. The blast radius is medium: an AI agent could corrupt spreadsheet contents, but the damage is recoverable and scoped to a specific range rather than irreversible deletion.

From the tool's definition Writes data to a specific range in a Google Spreadsheet. Overwrites existing data in the range.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

writeSpreadsheet Rate-limited

writeSpreadsheet 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": {
    "writeSpreadsheet": {
      "limits": [
        {
          "counter": "writespreadsheet_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 Workspace MCP Server, so you can run agents against it safely.

FAQ

Questions about writeSpreadsheet

What does the writeSpreadsheet tool do? +

Writes data to a specific range in a Google Spreadsheet. Overwrites existing data in the range. It is categorised as a Write tool in the Google Workspace 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 writeSpreadsheet? +

Register the Google Workspace MCP Server MCP server in PolicyLayer and add a rule for writeSpreadsheet: 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 Workspace MCP Server. Nothing to install.

What risk level is writeSpreadsheet? +

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

Can I rate-limit writeSpreadsheet? +

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

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

writeSpreadsheet is provided by the Google Workspace MCP Server MCP server (pm990320/google-workspace-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

// THE FULL RECORD

writeSpreadsheet is one line of Google Workspace MCP Server's registry record.

The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.

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