import_calendar_ics · Todos MCP: Risk & Policy

WHAT IT DOES

What import_calendar_ics does on Todos

AI agents use import_calendar_ics to create or update resources in Todos — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Todos environment.

WHY IT NEEDS A POLICY

Why import_calendar_ics needs a policy

This tool creates or adds new calendar items (events) to the local system based on ICS file data. This is a reversible write operation (calendar items can be edited or deleted later). It does not execute external commands, delete data irreversibly, or move financial resources.

From the tool's definition Tool description states 'Import VEVENT entries from ICS text as local calendar items' — the word 'Import' and 'as local calendar items' indicates creation of new calendar data in the system.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

import_calendar_ics Rate-limited

import_calendar_ics stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "import_calendar_ics": {
      "limits": [
        {
          "counter": "import_calendar_ics_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Todos, so you can run agents against it safely.

FAQ

Questions about import_calendar_ics

What does the import_calendar_ics tool do? +

Import VEVENT entries from ICS text as local calendar items. It is categorised as a Write tool in the Todos MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on import_calendar_ics? +

Register the Todos MCP server in PolicyLayer and add a rule for import_calendar_ics: 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 Todos. Nothing to install.

What risk level is import_calendar_ics? +

import_calendar_ics is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit import_calendar_ics? +

Yes. Add a rate_limit block to the import_calendar_ics 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 import_calendar_ics completely? +

Set action: deny in the PolicyLayer policy for import_calendar_ics. 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 import_calendar_ics? +

import_calendar_ics is provided by the Todos MCP server (@hasna/todos). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

// THE FULL RECORD

import_calendar_ics is one line of Todos's registry record.

The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.

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