google_sheet_append · MCP API Bridge Server MCP

WHAT IT DOES

What google_sheet_append does on MCP API Bridge Server

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

WHY IT NEEDS A POLICY

Why google_sheet_append needs a policy

The tool appends (adds) rows to a spreadsheet, which is a Create operation that modifies data reversibly. This falls clearly into the Write category. Severity is medium because unintended appends could pollute spreadsheet data but are easily undone; the blast radius depends on how many rows an agent might append and to which sheets, but the operation itself is not destructive or financial.

From the tool's definition Tool name 'google_sheet_append' and description indicating it generates code examples for 'adding a row' (新增一列資料) to Google Sheets via the Google Sheets API. The 'append' operation creates new data rows, which is a reversible write operation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

google_sheet_append Rate-limited

google_sheet_append 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": {
    "google_sheet_append": {
      "limits": [
        {
          "counter": "google_sheet_append_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

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

FAQ

Questions about google_sheet_append

What does the google_sheet_append tool do? +

產生使用 Google Sheets API 新增一列資料的程式碼範例. It is categorised as a Write tool in the MCP API Bridge 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 google_sheet_append? +

Register the MCP API Bridge Server MCP server in PolicyLayer and add a rule for google_sheet_append: 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 API Bridge Server. Nothing to install.

What risk level is google_sheet_append? +

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

Can I rate-limit google_sheet_append? +

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

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

google_sheet_append is provided by the MCP API Bridge Server MCP server (marty5499/mcp-api-bridge). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.