PurchaseOrdersMarkup_Update

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/purchaseordersmarkup-update.md

WHAT IT DOES

What PurchaseOrdersMarkup_Update does on ServiceTitan MCP Server

AI agents use PurchaseOrdersMarkup_Update 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 PurchaseOrdersMarkup_Update is rated Medium

The tool appears to modify purchase order markup data, which is reversible data modification (Write category). Severity is medium because unauthorized markup adjustments could lead to incorrect pricing/profitability but are not irreversible deletions (not Destructive) or financial transactions (not Financial).

From the tool's definition Tool name 'PurchaseOrdersMarkup_Update' contains 'Update' verb, indicating modification of existing data. Description is empty, but 'Markup' and 'Update' strongly suggest adjusting pricing or financial markup data on purchase orders.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

PurchaseOrdersMarkup_Update Rate-limited

PurchaseOrdersMarkup_Update 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": {
    "PurchaseOrdersMarkup_Update": {
      "limits": [
        {
          "counter": "purchaseordersmarkup_update_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 PurchaseOrdersMarkup_Update call is checked against it from then on.

FAQ

Questions about PurchaseOrdersMarkup_Update

What does the PurchaseOrdersMarkup_Update tool do? +

PurchaseOrdersMarkup_Update 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 PurchaseOrdersMarkup_Update? +

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

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

Can I rate-limit PurchaseOrdersMarkup_Update? +

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

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

PurchaseOrdersMarkup_Update 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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