resolve_comment · Google MCP: Risk & Policy

WHAT IT DOES

What resolve_comment does on Google

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

WHY IT NEEDS A POLICY

Why resolve_comment needs a policy

Resolving a comment updates document metadata in a reversible manner (comments can be reopened), so it fits the Write category rather than Destructive. The severity is medium because it affects collaboration and audit trails on shared documents, but the blast radius is limited to comment state changes on a single file.

From the tool's definition Tool description states 'Resolve a comment on a Google Drive file'—resolving comments modifies the state of feedback/annotations on documents, changing comment metadata (status) reversibly.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

resolve_comment Rate-limited

resolve_comment 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": {
    "resolve_comment": {
      "limits": [
        {
          "counter": "resolve_comment_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, so you can run agents against it safely.

FAQ

Questions about resolve_comment

What does the resolve_comment tool do? +

Resolve a comment on a Google Drive file. It is categorised as a Write tool in the Google MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on resolve_comment? +

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

What risk level is resolve_comment? +

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

Can I rate-limit resolve_comment? +

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

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

resolve_comment is provided by the Google MCP server (ztgluis/google-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.