showSheetDimension

SERVERGoogle Drive SOURCE@ark7/google-drive-mcp

Medium RISK CLASS

Category Write

Parameters 65 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/ark7-google-drive-mcp/showsheetdimension.md

WHAT IT DOES

What showSheetDimension does on Google Drive

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

Parameter	Type	Required	Description
`account`	string	—	Alias of the Google account to target. Optional — defaults to the session/global default account, or the sole authenticated account. Run manage_accounts list to
`sheetId`	number	Yes	Sheet ID (from getSpreadsheetInfo / listSheets). The default first sheet is usually 0.
`endIndex`	number	Yes	0-based end index (exclusive); must be greater than startIndex
`dimension`	string	Yes	Which dimension to show
`startIndex`	number	Yes	0-based start index (inclusive)
`spreadsheetId`	string	Yes	Spreadsheet ID

Parameters from the server's own tool schema.

RISK

Why showSheetDimension is rated Medium

This tool modifies the visibility state of rows/columns in a spreadsheet by setting hiddenByUser=false. It is a reversible write operation (columns/rows can be re-hidden), with low blast radius as it only affects display visibility, not data integrity.

From the tool's definition Show (unhide) a range of columns or rows in a sheet (sets hiddenByUser=false)

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs showSheetDimension safely

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

showSheetDimension Rate-limited

showSheetDimension 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": {
    "showSheetDimension": {
      "limits": [
        {
          "counter": "showsheetdimension_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 Google Drive, apply this rule, and every showSheetDimension call is checked against it from then on.

FAQ

Questions about showSheetDimension

What does the showSheetDimension tool do? +

Show (unhide) a range of columns or rows in a sheet (sets hiddenByUser=false). Indices are 0-based and the interval is half-open [startIndex, endIndex) — to unhide a single column/row at position 5, pass startIndex: 5, endIndex: 6. It is categorised as a Write tool in the Google Drive MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does showSheetDimension accept? +

showSheetDimension accepts 6 parameters: account, sheetId, endIndex, dimension, startIndex, spreadsheetId. Required: sheetId, endIndex, dimension, startIndex, spreadsheetId. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on showSheetDimension? +

Register the Google Drive MCP server in PolicyLayer and add a rule for showSheetDimension: 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 Drive. Nothing to install.

What risk level is showSheetDimension? +

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

Can I rate-limit showSheetDimension? +

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

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

showSheetDimension is provided by the Google Drive MCP server (@ark7/google-drive-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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