close_task · Todoist MCP Helper MCP: Risk & Policy

WHAT IT DOES

What close_task does on Todoist MCP Helper

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

WHY IT NEEDS A POLICY

Why close_task needs a policy

This tool modifies data state (marking a task complete) but the action is reversible—tasks can be uncompleted or reopened. This distinguishes it from Destructive (which would be permanent deletion like delete_task). It is Write-category because it updates task status.

From the tool's definition Tool name is 'close_task' with description 'Close (complete) a task.' The action marks a task as complete/closed, which modifies task state but is reversible (tasks can be reopened in Todoist).

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

close_task Rate-limited

close_task 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": {
    "close_task": {
      "limits": [
        {
          "counter": "close_task_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 Todoist MCP Helper, so you can run agents against it safely.

FAQ

Questions about close_task

What does the close_task tool do? +

Close (complete) a task. It is categorised as a Write tool in the Todoist MCP Helper MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on close_task? +

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

What risk level is close_task? +

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

Can I rate-limit close_task? +

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

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

close_task is provided by the Todoist MCP Helper MCP server (littlepeter52012/todoist-mcp-helper). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.