List events between ISO datetimes [start, end).
AI agents call list_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 only retrieves/queries calendar events within a specified time range. It has no side effects, does not modify or delete data, and does not trigger external operations beyond reading. It clearly fits the 'Read' category with low severity since misuse would only expose existing calendar data, not modify it or cause irreversible changes.
From the tool's definition Tool name is 'list_events' and description states 'List events between ISO datetimes [start, end)' — a pure retrieval operation with no modification or deletion of data.
Attacks that exploit this kind of access
List events between ISO datetimes [start, end). 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_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_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_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_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_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.
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