Adds a comment anchored to a specific text range. REQUIRES DRIVE API SCOPES/SETUP.
AI agents use addComment to create or update resources in Ultimate Google Docs & Drive MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Ultimate Google Docs & Drive MCP Server environment.
This tool creates a new comment as a reversible modification to a document. While comments do not alter the document's core content, they are persistent metadata additions that can affect collaboration and document state. This is clearly a Write operation—it creates new data (comments) that can be modified or deleted by authorized users.
From the tool's definition Adds a comment anchored to a specific text range
Attacks that exploit this kind of access
Adds a comment anchored to a specific text range. REQUIRES DRIVE API SCOPES/SETUP. It is categorised as a Write tool in the Ultimate Google Docs & Drive MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Ultimate Google Docs & Drive MCP Server MCP server in PolicyLayer and add a rule for addComment: 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 Ultimate Google Docs & Drive MCP Server. Nothing to install.
addComment is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the addComment 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.
Set action: deny in the PolicyLayer policy for addComment. 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.
addComment is provided by the Ultimate Google Docs & Drive MCP Server MCP server (jasonwong-servicedirect/google-docs-mcp-shared). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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