replaceDocumentWithMarkdown

WHAT IT DOES

What replaceDocumentWithMarkdown does on Google Docs, Drive & Sheets MCP Server

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

WHY IT NEEDS A POLICY

Why replaceDocumentWithMarkdown needs a policy

This tool modifies a document by replacing its entire body content with new markdown-parsed content. While it overwrites existing document body, the operation is reversible (previous versions can be recovered in Google Docs, or content can be replaced again), so it is Write rather than Destructive.

From the tool's definition Tool name 'replaceDocumentWithMarkdown' and description 'Replaces the entire document body' indicate the tool modifies document content. The phrase 'replaces the entire document body' shows it overwrites existing content.

Risk signalsBulk/mass operation — affects multiple targets

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

replaceDocumentWithMarkdown Rate-limited

replaceDocumentWithMarkdown 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": {
    "replaceDocumentWithMarkdown": {
      "limits": [
        {
          "counter": "replacedocumentwithmarkdown_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 Google Docs, Drive & Sheets MCP Server, so you can run agents against it safely.

FAQ

Questions about replaceDocumentWithMarkdown

What does the replaceDocumentWithMarkdown tool do? +

Replaces the entire document body with content parsed from markdown. Supports headings, bold, italic, strikethrough, links, and bullet/numbered lists. Use readDocument with format=. It is categorised as a Write tool in the Google Docs, Drive & 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 replaceDocumentWithMarkdown? +

Register the Google Docs, Drive & Sheets MCP Server MCP server in PolicyLayer and add a rule for replaceDocumentWithMarkdown: 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 Docs, Drive & Sheets MCP Server. Nothing to install.

What risk level is replaceDocumentWithMarkdown? +

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

Can I rate-limit replaceDocumentWithMarkdown? +

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

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

replaceDocumentWithMarkdown is provided by the Google Docs, Drive & Sheets MCP Server MCP server (rulords/google-docs-mcp-personal). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.