todoist_subtask_create · Mcp Todoist MCP: Risk & Policy

WHAT IT DOES

What todoist_subtask_create does on Mcp Todoist

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

WHY IT NEEDS A POLICY

Why todoist_subtask_create needs a policy

Creating a subtask modifies the task hierarchy and project state reversibly. It is not destructive (data can be deleted), not financial, and not code execution. This is a standard write operation. Severity is medium because misuse could clutter or disorganize a user's task management system, but the impact is limited to task data and is easily reversible.

From the tool's definition Tool name 'todoist_subtask_create' and description 'Create a new subtask' explicitly indicate creation of data.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

todoist_subtask_create Rate-limited

todoist_subtask_create 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": {
    "todoist_subtask_create": {
      "limits": [
        {
          "counter": "todoist_subtask_create_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 Mcp Todoist, so you can run agents against it safely.

FAQ

Questions about todoist_subtask_create

What does the todoist_subtask_create tool do? +

Create a new subtask under a parent task in Todoist. It is categorised as a Write tool in the Mcp Todoist MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on todoist_subtask_create? +

Register the Mcp Todoist MCP server in PolicyLayer and add a rule for todoist_subtask_create: 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 Mcp Todoist. Nothing to install.

What risk level is todoist_subtask_create? +

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

Can I rate-limit todoist_subtask_create? +

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

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

todoist_subtask_create is provided by the Mcp Todoist MCP server (@greirson/mcp-todoist). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.