Return calendars that have at least one event between ISO datetimes
AI agents call list_calendars_with_events to retrieve information from iCloud CalDAV MCP Connector without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries calendar metadata and returns filtered results. It performs no side effects, creates no data, executes no commands, and causes no irreversible changes. The operation is purely informational retrieval, fitting the 'Read' category as a list/filter operation.
From the tool's definition Tool name 'list_calendars_with_events' and description 'Return calendars that have at least one event between ISO datetimes' indicate a read-only operation that retrieves and filters calendar data based on event presence within a date range.
Attacks that exploit this kind of access
Return calendars that have at least one event between ISO datetimes. It is categorised as a Read tool in the iCloud CalDAV MCP Connector MCP Server, which means it retrieves data without modifying state.
Register the iCloud CalDAV MCP Connector MCP server in PolicyLayer and add a rule for list_calendars_with_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 iCloud CalDAV MCP Connector. Nothing to install.
list_calendars_with_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 list_calendars_with_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 list_calendars_with_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.
list_calendars_with_events is provided by the iCloud CalDAV MCP Connector MCP server (localhost433/icloud-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 →