Adjustments_UpdateCustomFields · ServiceTitan MCP Server MCP

WHAT IT DOES

What Adjustments_UpdateCustomFields does on ServiceTitan MCP Server

AI agents use Adjustments_UpdateCustomFields 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.

WHY IT NEEDS A POLICY

Why Adjustments_UpdateCustomFields needs a policy

An AI agent can call Adjustments_UpdateCustomFields faster than any human can review — one bad instruction and it creates or modifies resources in ServiceTitan MCP Server by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

Adjustments_UpdateCustomFields Rate-limited

Adjustments_UpdateCustomFields 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": {
    "Adjustments_UpdateCustomFields": {
      "limits": [
        {
          "counter": "adjustments_updatecustomfields_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches ServiceTitan MCP Server, so you can run agents against it safely.

FAQ

Questions about Adjustments_UpdateCustomFields

What does the Adjustments_UpdateCustomFields tool do? +

Adjustments_UpdateCustomFields. 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 Adjustments_UpdateCustomFields? +

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

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

Can I rate-limit Adjustments_UpdateCustomFields? +

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

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

Adjustments_UpdateCustomFields 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.