Medium Risk

createBoundScript

Creates a new Apps Script project bound to a Google Spreadsheet or Document. Returns the script ID for subsequent operations.

How to control createBoundScript ↓

What createBoundScript does on Google Workspace MCP Server

AI agents use createBoundScript 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.

Medium Risk

Why createBoundScript needs a policy

This tool creates a new resource (an Apps Script project) and binds it to an existing document or spreadsheet. It is a reversible write operation — the script project can be deleted later. However, it has moderate severity because bound scripts can subsequently execute code with the permissions of the owner, making misuse potentially impactful even though the creation itself is a write action.

From the tool's definition Creates a new Apps Script project bound to a Google Spreadsheet or Document. Returns the script ID for subsequent operations.

Documented attack patterns abuse exactly the kind of access createBoundScript gives an agent:

How to control createBoundScript

PolicyLayer is an MCP gateway — it sits between your AI agents and Google Workspace MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for createBoundScript:

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "createBoundScript": {
      "limits": [
        {
          "counter": "createboundscript_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

createBoundScript 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.

  1. Create a free account and register Google Workspace MCP Server — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
LIMIT THIS TOOL →

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Related tools and policies

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Questions about createBoundScript

What does the createBoundScript tool do? +

Creates a new Apps Script project bound to a Google Spreadsheet or Document. Returns the script ID for subsequent operations. 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 createBoundScript? +

Register the Google Workspace MCP Server MCP server in PolicyLayer and add a rule for createBoundScript: 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 createBoundScript? +

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

Can I rate-limit createBoundScript? +

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

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

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

Enforce policy on every Google Workspace MCP Server tool call.

Start from Google Workspace MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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72 Google Workspace MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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