create_task · Task MCP: Risk & Policy

WHAT IT DOES

What create_task does on Task

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

WHY IT NEEDS A POLICY

Why create_task needs a policy

This tool creates new task records in Taskwarrior, which is a reversible operation (tasks can be deleted or modified). It does not execute arbitrary code, delete data irreversibly, move money, or read sensitive information without modification. The blast radius is low because creating spurious tasks is easily remediated and does not affect other systems or financial obligations.

From the tool's definition Tool description: 'Create a new task and return the created task payload, including uuid'. The verb 'create' and the action of adding a new task to the task management system indicate data creation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_task Rate-limited

create_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": {
    "create_task": {
      "limits": [
        {
          "counter": "create_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 Task, so you can run agents against it safely.

FAQ

Questions about create_task

What does the create_task tool do? +

Create a new task and return the created task payload, including uuid. It is categorised as a Write tool in the Task MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_task? +

Register the Task MCP server in PolicyLayer and add a rule for create_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 Task. Nothing to install.

What risk level is create_task? +

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

Can I rate-limit create_task? +

Yes. Add a rate_limit block to the create_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 create_task completely? +

Set action: deny in the PolicyLayer policy for create_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 create_task? +

create_task is provided by the Task MCP server (maxronner/taskwarrior-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.