Create a new calendar event. Supports timed events, all-day events, and Google Meet integration.
AI agents use createCalendarEvent to create or update resources in Google Workspace MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Google Workspace MCP Server environment.
Creating a calendar event is a Write operation: it adds new data to the user's calendar and can be undone (the event can be deleted). It does not execute arbitrary code, destroy data irreversibly, or move money. Severity is medium because a malicious agent could spam calendar invitations or create misleading events that disrupt workflows or impersonate others, but the impact is containable and reversible.
From the tool's definition Tool name is 'createCalendarEvent' and description states 'Create a new calendar event' — this is a creation operation that modifies calendar data reversibly.
Documented attack patterns abuse exactly the kind of access createCalendarEvent gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Google Workspace MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for createCalendarEvent:
{
"version": "1",
"default": "deny",
"tools": {
"createCalendarEvent": {
"limits": [
{
"counter": "createcalendarevent_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}createCalendarEvent 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.
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Create a new calendar event. Supports timed events, all-day events, and Google Meet integration. It is categorised as a Write tool in the Google Workspace MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Google Workspace MCP Server MCP server in PolicyLayer and add a rule for createCalendarEvent: 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 Workspace MCP Server. Nothing to install.
createCalendarEvent 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 createCalendarEvent 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 createCalendarEvent. 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.
createCalendarEvent is provided by the Google Workspace MCP Server MCP server (sputnicyoji/google-workspace-mcp-with-script). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Google Workspace MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
72 Google Workspace MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.