set_heading · Google Connections MCP: Risk & Policy

WHAT IT DOES

What set_heading does on Google Connections

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

WHY IT NEEDS A POLICY

Why set_heading needs a policy

set_heading most likely modifies document structure in Google Docs by updating heading formatting or hierarchy. This is a Write operation (reversible modification) rather than Read (no retrieval), Execute (no external code execution), or Destructive (headings can be changed back).

From the tool's definition Tool name 'set_heading' combined with server description indicating 'full CRUD operations' on Google Docs; sibling tools like 'append_to_doc' and 'batch_update_doc' confirm document modification capabilities. Empty tool description reduces specificity.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

set_heading Rate-limited

set_heading 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": {
    "set_heading": {
      "limits": [
        {
          "counter": "set_heading_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 Connections, so you can run agents against it safely.

FAQ

Questions about set_heading

What does the set_heading tool do? +

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

How do I enforce a policy on set_heading? +

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

What risk level is set_heading? +

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

Can I rate-limit set_heading? +

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

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

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