tasks_create_subtask

A write tool on the ServiceTitan MCP server.

SERVERServiceTitan MCP Server SOURCEjordandalton/servicetitanmcpserver

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/jordandalton-servicetitanmcpserver/tasks-create-subtask.md

WHAT IT DOES

What tasks_create_subtask does on ServiceTitan MCP Server

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

RISK

Why tasks_create_subtask is rated Medium

This tool creates new subtask records within the ServiceTitan system. Creation of business entities is reversible (subtasks can be deleted), making it a Write rather than Destructive operation. Severity is medium due to potential for task/workflow disruption if subtasks are created incorrectly by an agent, but impact is localized to task management and reversible.

From the tool's definition Tool name 'tasks_create_subtask' indicates creation of a new subtask entity. Pattern matches sibling tools like 'adjustments_update' which are Write operations.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs tasks_create_subtask safely

PolicyLayer is an MCP gateway: it sits between your AI agents and ServiceTitan MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For tasks_create_subtask, this is the rule to start with:

tasks_create_subtask Rate-limited

tasks_create_subtask 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": {
    "tasks_create_subtask": {
      "limits": [
        {
          "counter": "tasks_create_subtask_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect ServiceTitan MCP Server, apply this rule, and every tasks_create_subtask call is checked against it from then on.

FAQ

Questions about tasks_create_subtask

What does the tasks_create_subtask tool do? +

tasks_create_subtask is a write tool on the ServiceTitan MCP Server MCP server. It is categorised as a Write tool in the ServiceTitan 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 tasks_create_subtask? +

Register the ServiceTitan MCP Server MCP server in PolicyLayer and add a rule for tasks_create_subtask: 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 ServiceTitan MCP Server. Nothing to install.

What risk level is tasks_create_subtask? +

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

Can I rate-limit tasks_create_subtask? +

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

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

tasks_create_subtask is provided by the ServiceTitan MCP Server MCP server (jordandalton/servicetitanmcpserver). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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