get_reminders
AI agents call get_reminders to retrieve information from Calendar App without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool retrieves reminder data from macOS Calendar.app. No description is provided, but the name and server context indicate it reads/queries reminders rather than modifying or executing anything.
From the tool's definition Tool name 'get_reminders' and server description indicating 'viewing, searching, and filtering calendar data' and 'reminders' without any language suggesting modification, deletion, or execution.
Attacks that exploit this kind of access
get_reminders. It is categorised as a Read tool in the Calendar App MCP Server, which means it retrieves data without modifying state.
Register the Calendar App MCP server in PolicyLayer and add a rule for get_reminders: 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 Calendar App. Nothing to install.
get_reminders 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 get_reminders 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 get_reminders. 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.
get_reminders is provided by the Calendar App MCP server (rygwdn/calendar-app-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.
Teams ship this data inside their own products. See what a licence covers →