AI agents call deleteCalendarEvent to permanently remove resources in Google Drive MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
This tool permanently removes calendar events, which cannot be undone. Deletion is irreversible data destruction, making it Destructive rather than Write. The severity is high because unauthorized deletion of calendar events could disrupt schedules, meetings, and coordination across an organization, though the blast radius is typically limited to calendar data rather than critical system infrastructure.
From the tool's definition Tool name is 'deleteCalendarEvent' with description 'Delete a calendar event'. The verb 'delete' combined with calendar event data indicates irreversible removal of data.
Documented attack patterns abuse exactly the kind of access deleteCalendarEvent gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Google Drive MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for deleteCalendarEvent:
{
"version": "1",
"default": "deny",
"hide": [
"deleteCalendarEvent"
]
}deleteCalendarEvent disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.
Free to start. No card required.
Delete a calendar event. It is categorised as a Destructive tool in the Google Drive MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Google Drive MCP Server MCP server in PolicyLayer and add a rule for deleteCalendarEvent: 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 Drive MCP Server. Nothing to install.
deleteCalendarEvent 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 deleteCalendarEvent 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 deleteCalendarEvent. 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.
deleteCalendarEvent is provided by the Google Drive MCP Server MCP server (piotr-agier/google-drive-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 107 Google Drive MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
107 Google Drive MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.