List calendar events with optional filters
AI agents call calendar-list-events to retrieve information from Google Services MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves calendar event data based on optional filter criteria. It performs no side effects, does not modify or delete events, and does not execute external operations. It is a straightforward read operation that returns information to the user.
From the tool's definition Tool name 'calendar-list-events' and description 'List calendar events with optional filters' indicate data retrieval without modification or deletion.
Attacks that exploit this kind of access
List calendar events with optional filters. It is categorised as a Read tool in the Google Services MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Google Services MCP Server MCP server in PolicyLayer and add a rule for calendar-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 Services MCP Server. Nothing to install.
calendar-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 calendar-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 calendar-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.
calendar-list-events is provided by the Google Services MCP Server MCP server (ricleedo/google-service-mcp). 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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