set_subtask_parent · Tick MCP: Risk & Policy

WHAT IT DOES

What set_subtask_parent does on Tick

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

WHY IT NEEDS A POLICY

Why set_subtask_parent needs a policy

This tool creates or modifies task hierarchy relationships within TickTick—a reversible Write operation. It is not Destructive because parent reassignment can be undone by setting a different parent. It is not Execute because it does not run arbitrary code or trigger external operations.

From the tool's definition Tool name 'set_subtask_parent' indicates it modifies the parent relationship of a subtask, changing its organizational structure.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

set_subtask_parent Rate-limited

set_subtask_parent 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": {
    "set_subtask_parent": {
      "limits": [
        {
          "counter": "set_subtask_parent_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 Tick, so you can run agents against it safely.

FAQ

Questions about set_subtask_parent

What does the set_subtask_parent tool do? +

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

How do I enforce a policy on set_subtask_parent? +

Register the Tick MCP server in PolicyLayer and add a rule for set_subtask_parent: 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 Tick. Nothing to install.

What risk level is set_subtask_parent? +

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

Can I rate-limit set_subtask_parent? +

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

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

set_subtask_parent is provided by the Tick MCP server (kpihx/tick-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.