appendRows

Appends rows to the end of a sheet. Data is added after the last row with content in the specified range.

SERVERClaude MCP x Google Docs SOURCEa-bonus/google-docs-mcp

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/a-bonus-google-docs-mcp/appendrows.md

WHAT IT DOES

What appendRows does on Claude MCP x Google Docs

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

RISK

Why appendRows is rated Medium

This tool creates or modifies data in a reversible manner. While it adds content to a spreadsheet, the changes can be undone (deleted, edited) and do not permanently destroy data. It does not execute arbitrary code, move money, or irreversibly delete content. The medium severity reflects that unintended row additions could corrupt spreadsheet structure or data integrity, but the changes remain recoverable.

From the tool's definition Tool description states 'Appends rows to the end of a sheet' and 'Data is added after the last row with content'. The verb 'appends' and the action of adding data to a Google Sheet indicates reversible data modification.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs appendRows safely

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

appendRows Rate-limited

appendRows 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": {
    "appendRows": {
      "limits": [
        {
          "counter": "appendrows_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 Claude MCP x Google Docs, apply this rule, and every appendRows call is checked against it from then on.

FAQ

Questions about appendRows

What does the appendRows tool do? +

Appends rows to the end of a sheet. Data is added after the last row with content in the specified range. It is categorised as a Write tool in the Claude MCP x 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 appendRows? +

Register the Claude MCP x Google Docs MCP server in PolicyLayer and add a rule for appendRows: 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 Claude MCP x Google Docs. Nothing to install.

What risk level is appendRows? +

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

Can I rate-limit appendRows? +

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

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

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

KEEP EXPLORING

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