Retrieve a single event by ID.
AI agents call get_event to retrieve information from CalDAV MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only retrieves calendar event data by identifier without any side effects. It matches the Read category definition: 'retrieves or queries data; no side effects (search, list, get, fetch).' The severity is low because exposure of this tool allows only data retrieval, with minimal blast radius even if misused by an AI agent, assuming typical access controls on calendar data.
From the tool's definition Tool name 'get_event' and description 'Retrieve a single event by ID' indicate a read-only query operation with no modification or deletion of data.
Attacks that exploit this kind of access
Retrieve a single event by ID. It is categorised as a Read tool in the CalDAV MCP Server MCP Server, which means it retrieves data without modifying state.
Register the CalDAV MCP Server MCP server in PolicyLayer and add a rule for get_event: 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 CalDAV MCP Server. Nothing to install.
get_event 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_event 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_event. 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_event is provided by the CalDAV MCP Server MCP server (thegreatgooo/radicale-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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