sheets_insert_sheet · MCP Google Sheets Server MCP

WHAT IT DOES

What sheets_insert_sheet does on MCP Google Sheets Server

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

WHY IT NEEDS A POLICY

Why sheets_insert_sheet needs a policy

The tool creates a new sheet (a data structure) within an existing spreadsheet. This is a Write operation because it creates new content that can be subsequently modified or deleted (reversible). It does not execute arbitrary code (Execute), delete data irreversibly (Destructive), move money (Financial), or merely retrieve data (Read).

From the tool's definition Tool description states 'Add a new sheet to an existing Google Sheets spreadsheet' — this creates a new structural element within a spreadsheet, which is a reversible modification operation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

sheets_insert_sheet Rate-limited

sheets_insert_sheet 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": {
    "sheets_insert_sheet": {
      "limits": [
        {
          "counter": "sheets_insert_sheet_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 MCP Google Sheets Server, so you can run agents against it safely.

FAQ

Questions about sheets_insert_sheet

What does the sheets_insert_sheet tool do? +

Add a new sheet to an existing Google Sheets spreadsheet. It is categorised as a Write tool in the MCP Google Sheets 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 sheets_insert_sheet? +

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

What risk level is sheets_insert_sheet? +

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

Can I rate-limit sheets_insert_sheet? +

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

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

sheets_insert_sheet is provided by the MCP Google Sheets Server MCP server (oregpt/agenticledger_mcp_sheetsonly). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.