gmail_calendar_create_event · Personal Gmail MCP

WHAT IT DOES

What gmail_calendar_create_event does on Personal Gmail

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

WHY IT NEEDS A POLICY

Why gmail_calendar_create_event needs a policy

This tool creates new calendar events and can send email invitations to attendees, which modifies both the user's calendar and potentially affects others by sending unsolicited invites. This is a Write-category action because it creates/modifies data reversibly.

From the tool's definition Tool creates calendar events and sends attendee invites. Description states: 'Create an event' and 'If attendees are provided, invites are sent.' This is a reversible data creation operation (events can be deleted/cancelled).

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

gmail_calendar_create_event Rate-limited

gmail_calendar_create_event 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": {
    "gmail_calendar_create_event": {
      "limits": [
        {
          "counter": "gmail_calendar_create_event_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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

FAQ

Questions about gmail_calendar_create_event

What does the gmail_calendar_create_event tool do? +

Create an event. Times use {dateTime, timeZone} where dateTime is local-form (no offset) and timeZone is an IANA name. If attendees are provided, invites are sent. isOnlineMeeting attaches a Google Meet link. It is categorised as a Write tool in the Personal Gmail MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on gmail_calendar_create_event? +

Register the Personal Gmail MCP server in PolicyLayer and add a rule for gmail_calendar_create_event: 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 Personal Gmail. Nothing to install.

What risk level is gmail_calendar_create_event? +

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

Can I rate-limit gmail_calendar_create_event? +

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

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

gmail_calendar_create_event is provided by the Personal Gmail MCP server (jaingxyz/personal-gmail-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.