appendSpreadsheetRows

Appends rows of data to the end of a sheet in a Google Spreadsheet

SERVERGoogle Drive SOURCE@ark7/google-drive-mcp

Medium RISK CLASS

Category Write

Parameters 53 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/appendspreadsheetrows.md

WHAT IT DOES

What appendSpreadsheetRows does on Google Drive

AI agents use appendSpreadsheetRows 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
`range`	string	Yes	A1 notation range indicating where to append (e.g., 'A1' or 'Sheet1!A1'). Data will be appended starting from this range.
`values`	array	Yes	2D array of values to append. Each inner array represents a row.
`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
`spreadsheetId`	string	Yes	The ID of the Google Spreadsheet (from the URL)
`valueInputOption`	string	—	How input data should be interpreted (RAW or USER_ENTERED)

Parameters from the server's own tool schema.

RISK

Why appendSpreadsheetRows is rated Medium

Appending rows is a Write operation: it creates new data in the spreadsheet in a reversible manner (rows can be deleted later). It does not execute arbitrary code, delete data irreversibly, or move money. The severity is medium because misuse could add large volumes of unwanted data to shared documents, affecting multiple users and potentially corrupting workflows, but the action remains undoable.

From the tool's definition Tool description states it 'Appends rows of data to the end of a sheet' — this is a create/modify operation that adds data reversibly to a spreadsheet.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs appendSpreadsheetRows 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 appendSpreadsheetRows, this is the rule to start with:

appendSpreadsheetRows Rate-limited

appendSpreadsheetRows 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": {
    "appendSpreadsheetRows": {
      "limits": [
        {
          "counter": "appendspreadsheetrows_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 appendSpreadsheetRows call is checked against it from then on.

FAQ

Questions about appendSpreadsheetRows

What does the appendSpreadsheetRows tool do? +

Appends rows of data to the end of a sheet in a Google Spreadsheet. 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 appendSpreadsheetRows accept? +

appendSpreadsheetRows accepts 5 parameters: range, values, account, spreadsheetId, valueInputOption. Required: range, values, spreadsheetId. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on appendSpreadsheetRows? +

Register the Google Drive MCP server in PolicyLayer and add a rule for appendSpreadsheetRows: 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 appendSpreadsheetRows? +

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

Can I rate-limit appendSpreadsheetRows? +

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

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

appendSpreadsheetRows 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.

KEEP EXPLORING

More on Google Drive, and thousands of servers like it.

This server

All 131 Google Drive tools →

Across the catalogue

The MCP Attack Database →

Guides

Govern customer-ops agents →Argument validation →Scoped token →