create_task · Tembo MCP Server MCP: Risk & Policy

WHAT IT DOES

What create_task does on Tembo MCP Server

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

WHY IT NEEDS A POLICY

Why create_task needs a policy

The tool creates new tasks (data creation), which is reversible—tasks can typically be deleted or marked as cancelled. It does not execute arbitrary code, delete data permanently, or move money. The background processing could have side effects depending on task type, but without evidence that it executes arbitrary code or triggers financial operations, Write is the appropriate category.

From the tool's definition Tool description explicitly states 'Create a new task in Tembo' and 'work items that Tembo will process in the background', indicating creation of new data objects with backend processing effects.

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 Tembo MCP Server, so you can run agents against it safely.

FAQ

Questions about create_task

What does the create_task tool do? +

Create a new task in Tembo. Tasks are work items that Tembo will process in the background. It is categorised as a Write tool in the Tembo MCP Server 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 Tembo MCP Server 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 Tembo MCP Server. 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 Tembo MCP Server MCP server (tembo/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.