reopen-task · Todoist MCP: Risk & Policy

WHAT IT DOES

What reopen-task does on Todoist MCP

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

WHY IT NEEDS A POLICY

Why reopen-task needs a policy

This tool modifies the state of an existing task by changing it from completed back to active. It is a reversible write operation — the task can be closed again — and has minimal blast radius since it only affects task completion status.

From the tool's definition Reopens a previously closed (completed) task in Todoist

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

reopen-task Rate-limited

reopen-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": {
    "reopen-task": {
      "limits": [
        {
          "counter": "reopen-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, so you can run agents against it safely.

FAQ

Questions about reopen-task

What does the reopen-task tool do? +

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

How do I enforce a policy on reopen-task? +

Register the Todoist MCP server in PolicyLayer and add a rule for reopen-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. Nothing to install.

What risk level is reopen-task? +

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

Can I rate-limit reopen-task? +

Yes. Add a rate_limit block to the reopen-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 reopen-task completely? +

Set action: deny in the PolicyLayer policy for reopen-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 reopen-task? +

reopen-task is provided by the Todoist MCP server (jdh747/todoist-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.