update_table_rows · Google Sheets MCP Server MCP

WHAT IT DOES

What update_table_rows does on Google Sheets MCP Server

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

WHY IT NEEDS A POLICY

Why update_table_rows needs a policy

This tool modifies existing spreadsheet data (rows) based on matching conditions, which is a classic Write operation—data is created or changed but can be undone (via undo or by writing different values). It does not irreversibly delete data (Destructive), execute arbitrary code (Execute), involve financial transactions (Financial), or merely retrieve data (Read).

From the tool's definition Tool name "update_table_rows" and description states it "Updates rows in a table matching criteria". The verb "Updates" indicates modification of existing data in a reversible manner.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_table_rows Rate-limited

update_table_rows 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": {
    "update_table_rows": {
      "limits": [
        {
          "counter": "update_table_rows_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Google Sheets MCP Server, so you can run agents against it safely.

FAQ

Questions about update_table_rows

What does the update_table_rows tool do? +

Updates rows in a table matching criteria. Both match_conditions and updates should be JSON objects like {\"column_name\":\"value\"}. It is categorised as a Write tool in the Google Sheets 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 update_table_rows? +

Register the Google Sheets MCP Server MCP server in PolicyLayer and add a rule for update_table_rows: 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 Sheets MCP Server. Nothing to install.

What risk level is update_table_rows? +

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

Can I rate-limit update_table_rows? +

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

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

update_table_rows is provided by the Google Sheets MCP Server MCP server (santiagopereda/mcp_googlesheets). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.