extend_task · Todos MCP: Risk & Policy

WHAT IT DOES

What extend_task does on Todos

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

WHY IT NEEDS A POLICY

Why extend_task needs a policy

This tool modifies task properties (extending time allocation) but does not delete data, execute code, move money, or trigger external operations. It is a straightforward Write operation that updates task state in a reversible manner. Severity is low because extending a task deadline has minimal blast radius—it delays work but doesn't corrupt data or cause cascading failures.

From the tool's definition Tool name 'extend_task' and description 'Add more time to a task' indicate modification of task metadata (duration/deadline), which is a reversible update operation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

extend_task Rate-limited

extend_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": {
    "extend_task": {
      "limits": [
        {
          "counter": "extend_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 Todos, so you can run agents against it safely.

FAQ

Questions about extend_task

What does the extend_task tool do? +

Add more time to a task. It is categorised as a Write tool in the Todos MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on extend_task? +

Register the Todos MCP server in PolicyLayer and add a rule for extend_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 Todos. Nothing to install.

What risk level is extend_task? +

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

Can I rate-limit extend_task? +

Yes. Add a rate_limit block to the extend_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 extend_task completely? +

Set action: deny in the PolicyLayer policy for extend_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 extend_task? +

extend_task is provided by the Todos MCP server (@hasna/todos). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.