Check your reminders
AI agents call check_reminders to retrieve information from MCP Reminders without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves reminder data for the user to review. It performs no side effects, creates no obligations, executes no code, and modifies no state. It is a pure read operation analogous to listing or fetching stored information.
From the tool's definition Tool name 'check_reminders' and description 'Check your reminders' indicate a query/retrieval operation with no data modification or external effects.
Attacks that exploit this kind of access
Check your reminders. It is categorised as a Read tool in the MCP Reminders MCP Server, which means it retrieves data without modifying state.
Register the MCP Reminders MCP server in PolicyLayer and add a rule for check_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 MCP Reminders. Nothing to install.
check_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 check_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 check_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.
check_reminders is provided by the MCP Reminders MCP server (mikeybeez/mcp-reminders). 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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