caldav_search_events

THE RISK

Low Risk

Why caldav_search_events needs a policy

This tool retrieves calendar event data matching specified criteria (text, attendees, location) without creating, modifying, or deleting any data. Search operations are read-only with no side effects. Severity is low because calendar data is typically not highly sensitive financial or operational data, and search cannot cause unintended changes.

From the tool's definition Tool name 'caldav_search_events' and description 'Search events by text, attendees, or location' indicate retrieval without modification.

Documented attack patterns abuse exactly the kind of access caldav_search_events gives an agent:

POLICY

How to control caldav_search_events

PolicyLayer is an MCP gateway — it sits between your AI agents and CalDAV MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for caldav_search_events:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "caldav_search_events": {}
  }
}

caldav_search_events is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register CalDAV MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More CalDAV MCP Server tools

Destructive caldav_delete_event Delete an event by its UID Write caldav_create_event Create a new event in the calendar Read caldav_get_event_by_uid Get a specific event by its UID Read caldav_get_events Get events from calendar for a specified period Read caldav_get_today_events Get all events for today Read caldav_get_week_events Get all events for the week Read caldav_list_calendars List all available calendars

All 8 CalDAV MCP Server tools →

Read tools on other servers

M-Team MCP Server get_torrent_detail YouTube MCP Server search_channel Android Forensics ADB MCP Server parse_browser_history 0xarchive web3_challenge

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about caldav_search_events

What does the caldav_search_events tool do? +

Search events by text, attendees, or location. It is categorised as a Read tool in the CalDAV MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on caldav_search_events? +

Register the CalDAV MCP Server MCP server in PolicyLayer and add a rule for caldav_search_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 CalDAV MCP Server. Nothing to install.

What risk level is caldav_search_events? +

caldav_search_events is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit caldav_search_events? +

Yes. Add a rate_limit block to the caldav_search_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.

How do I block caldav_search_events completely? +

Set action: deny in the PolicyLayer policy for caldav_search_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.

What MCP server provides caldav_search_events? +

caldav_search_events is provided by the CalDAV MCP Server MCP server (madbonez/caldav-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every CalDAV MCP Server tool call.

Start from CalDAV MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →