add_columns

Add columns to a sheet in a google sheets spreadsheet.

SERVERMcp Google Docs SOURCEdev-ithitchhiker/mcp-google-docs

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/dev-ithitchhiker-mcp-google-docs/add-columns.md

WHAT IT DOES

What add_columns does on Mcp Google Docs

AI agents use add_columns to create or update resources in Mcp Google Docs, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Mcp Google Docs environment.

RISK

Why add_columns is rated Medium

This tool creates new columns in a Google Sheets spreadsheet. This is a Write operation because it modifies data structures reversibly—columns can be deleted or reorganized later. The operation does not delete data irreversibly (Destructive), execute arbitrary code (Execute), involve financial transactions (Financial), or trigger external operations (Execute).

From the tool's definition Tool name 'add_columns' and description 'Add columns to a sheet in a google sheets spreadsheet' indicate creation of new spreadsheet columns, which is a reversible data structure modification.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs add_columns safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Mcp Google Docs, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For add_columns, this is the rule to start with:

add_columns Rate-limited

add_columns 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": {
    "add_columns": {
      "limits": [
        {
          "counter": "add_columns_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Mcp Google Docs, apply this rule, and every add_columns call is checked against it from then on.

FAQ

Questions about add_columns

What does the add_columns tool do? +

Add columns to a sheet in a google sheets spreadsheet. It is categorised as a Write tool in the Mcp Google Docs MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on add_columns? +

Register the Mcp Google Docs MCP server in PolicyLayer and add a rule for add_columns: 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 Docs. Nothing to install.

What risk level is add_columns? +

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

Can I rate-limit add_columns? +

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

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

add_columns is provided by the Mcp Google Docs MCP server (dev-ithitchhiker/mcp-google-docs). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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