List events. time_min/time_max are RFC3339 (e.g. '2026-06-05T00:00:00-07:00').
AI agents call calendar_events_list to retrieve information from Google Workspace 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 within a specified time range without creating, modifying, or deleting any data. It is a pure read operation with no side effects.
From the tool's definition Tool name 'calendar_events_list' and description 'List events' indicate retrieval of calendar event data with no modification capability. Parameters are date filters for querying.
Attacks that exploit this kind of access
List events. time_min/time_max are RFC3339 (e.g. '2026-06-05T00:00:00-07:00'). It is categorised as a Read tool in the Google Workspace MCP Server, which means it retrieves data without modifying state.
Register the Google Workspace MCP server in PolicyLayer and add a rule for calendar_events_list: 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. Nothing to install.
calendar_events_list 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_events_list 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_events_list. 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_events_list is provided by the Google Workspace MCP server (rajool/google-workspace-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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