delete_event
AI agents call delete_event to permanently remove resources in Google Calendar MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
The tool deletes calendar events, which is an irreversible operation. Even though the description is empty, the name unambiguously indicates deletion of data. Calendar events are often important commitments or records. Misuse by an AI agent could result in loss of important scheduled activities. This is Destructive rather than Write (which is reversible) or Execute (which has variable effects).
From the tool's definition Tool name is 'delete_event' with empty description. Sibling tools show this server performs calendar CRUD operations. 'delete' is explicitly listed in the classification rules as an irreversible action that cannot be undone.
Attacks that exploit this kind of access
delete_event. It is categorised as a Destructive tool in the Google Calendar MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Google Calendar MCP Server MCP server in PolicyLayer and add a rule for delete_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 Google Calendar MCP Server. Nothing to install.
delete_event is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the delete_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.
Set action: deny in the PolicyLayer policy for delete_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.
delete_event is provided by the Google Calendar MCP Server MCP server (volodymyrkoval/fastmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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