customers_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/customers-update.md

WHAT IT DOES

What customers_update does on ServiceTitan MCP Server

AI agents use customers_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 customers_update is rated Medium

The 'update' verb combined with 'customers' as the resource clearly indicates this tool modifies customer data reversibly. This is a Write operation rather than Destructive (data is not deleted, only modified).

From the tool's definition Tool name 'customers_update' indicates a data modification operation. The naming pattern matches sibling tools like 'adjustments_update' which are Write operations.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

customers_update Rate-limited

customers_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": {
    "customers_update": {
      "limits": [
        {
          "counter": "customers_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 customers_update call is checked against it from then on.

FAQ

Questions about customers_update

What does the customers_update tool do? +

customers_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 customers_update? +

Register the ServiceTitan MCP Server MCP server in PolicyLayer and add a rule for customers_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 customers_update? +

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

Can I rate-limit customers_update? +

Yes. Add a rate_limit block to the customers_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 customers_update completely? +

Set action: deny in the PolicyLayer policy for customers_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 customers_update? +

customers_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.

KEEP EXPLORING

More on ServiceTitan MCP Server, and thousands of servers like it.

This server

All 454 ServiceTitan MCP Server tools →

Across the catalogue

aroflo_create_or_update_record on AroFlo MCP →team_manager_update_budget on Team Manager MCP → The MCP Attack Database →

Guides

Govern customer-ops agents →Argument validation →Scoped token →