List calendar events within a specified time range
AI agents call list_events to retrieve information from Google Calendar MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries calendar events without creating, modifying, or deleting data. It has no side effects beyond returning information to the user. While the server as a whole includes destructive operations (delete_event), this specific tool performs only a read operation on calendar data, making it low severity.
From the tool's definition Tool name 'list_events' and description 'List calendar events within a specified time range' indicate data retrieval with no modifications.
Documented attack patterns abuse exactly the kind of access list_events gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Google Calendar MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for list_events:
{
"version": "1",
"default": "deny",
"tools": {
"list_events": {}
}
}list_events is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List calendar events within a specified time range. It is categorised as a Read tool in the Google Calendar MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Google Calendar MCP Server MCP server in PolicyLayer and add a rule for list_events: 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.
list_events is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the list_events 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 list_events. 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.
list_events is provided by the Google Calendar MCP Server MCP server (v-3/google-calendar). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 5 Google Calendar MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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5 Google Calendar MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.