quick_add_event

Creates an event based on a simple text string using Google's natural language parser.

SERVERCalendar SOURCEdeciduus/calendar-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade D, identity unverified Pull the record →

This record as markdown: /tools/deciduus-calendar-mcp/quick-add-event.md

WHAT IT DOES

What quick_add_event does on Calendar

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

RISK

Why quick_add_event is rated Medium

This tool creates new calendar events, which is a write operation that modifies calendar state. While calendar event creation is reversible (events can be deleted), the tool operates on user data with side effects. The natural language parsing aspect introduces moderate risk of unintended calendar commitments if the AI misinterprets user intent.

From the tool's definition Tool name 'quick_add_event' and description 'Creates an event' indicate data creation. The tool adds calendar events, which are reversible modifications to calendar data.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs quick_add_event safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Calendar, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For quick_add_event, this is the rule to start with:

quick_add_event Rate-limited

quick_add_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": {
    "quick_add_event": {
      "limits": [
        {
          "counter": "quick_add_event_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Calendar, apply this rule, and every quick_add_event call is checked against it from then on.

FAQ

Questions about quick_add_event

What does the quick_add_event tool do? +

Creates an event based on a simple text string using Google's natural language parser. It is categorised as a Write tool in the Calendar MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on quick_add_event? +

Register the Calendar MCP server in PolicyLayer and add a rule for quick_add_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 Calendar. Nothing to install.

What risk level is quick_add_event? +

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

Can I rate-limit quick_add_event? +

Yes. Add a rate_limit block to the quick_add_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 quick_add_event completely? +

Set action: deny in the PolicyLayer policy for quick_add_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 quick_add_event? +

quick_add_event is provided by the Calendar MCP server (deciduus/calendar-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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