categories_create

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/categories-create.md

WHAT IT DOES

What categories_create does on ServiceTitan MCP Server

AI agents use categories_create 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 categories_create is rated Medium

The 'create' operation reversibly adds new data to the system without irreversible deletion or financial impact. This is a Write-category action. Severity is medium because creating categories could affect business operations and configuration, but the impact is reversible through updates or deletion.

From the tool's definition Tool name 'categories_create' indicates a creation operation. The description is empty, but the naming pattern matches other tools on this server that follow CRUD conventions (e.g., 'adjustments_update', 'adjustments_get_list').

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs categories_create 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 categories_create, this is the rule to start with:

categories_create Rate-limited

categories_create 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": {
    "categories_create": {
      "limits": [
        {
          "counter": "categories_create_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 categories_create call is checked against it from then on.

FAQ

Questions about categories_create

What does the categories_create tool do? +

categories_create 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 categories_create? +

Register the ServiceTitan MCP Server MCP server in PolicyLayer and add a rule for categories_create: 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 categories_create? +

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

Can I rate-limit categories_create? +

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

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

categories_create 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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