[Calendar API v3] List upcoming calendar events with Google Meet conferences
Part of the Google Calendar and Meet server.
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AI agents call calendar_v3_list_events to retrieve information from Google Calendar and Meet without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though calendar_v3_list_events only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
{
"version": "1",
"default": "deny",
"tools": {
"calendar_v3_list_events": {}
}
}See the full Google Calendar and Meet policy for all 25 tools.
These attack patterns abuse exactly the kind of access calendar_v3_list_events gives an agent. Each links to the full case and the policy that stops it:
Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.
[Calendar API v3] List upcoming calendar events with Google Meet conferences. It is categorised as a Read tool in the Google Calendar and Meet MCP Server, which means it retrieves data without modifying state.
Register the Google Calendar and Meet MCP server in PolicyLayer and add a rule for calendar_v3_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 and Meet. Nothing to install.
calendar_v3_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_v3_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_v3_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_v3_list_events is provided by the Google Calendar and Meet MCP server (INSIDE-HAIR/mcp-google-meet-and-calendar). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 25 Google Calendar and Meet tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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