create_variable_set

Create reusable variable sets for catalog items

SERVERServiceNow MCP Server SOURCEdivyashah0510/mcp-server-servicenow

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade D, identity unverified Pull the record →

This record as markdown: /tools/divyashah0510-mcp-server-servicenow/create-variable-set.md

WHAT IT DOES

What create_variable_set does on ServiceNow MCP Server

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

RISK

Why create_variable_set is rated Medium

This tool creates new variable set configurations in ServiceNow, which is a reversible modification of system data. While variable sets could potentially affect catalog behavior or request fulfillment logic, the operation itself is not destructive (data can be deleted/modified later), not executable code (it doesn't run commands), and not financial.

From the tool's definition Tool description states it creates 'reusable variable sets for catalog items' – the verb 'create' indicates data creation.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs create_variable_set safely

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

create_variable_set Rate-limited

create_variable_set 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": {
    "create_variable_set": {
      "limits": [
        {
          "counter": "create_variable_set_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 ServiceNow MCP Server, apply this rule, and every create_variable_set call is checked against it from then on.

FAQ

Questions about create_variable_set

What does the create_variable_set tool do? +

Create reusable variable sets for catalog items. It is categorised as a Write tool in the ServiceNow 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 create_variable_set? +

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

What risk level is create_variable_set? +

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

Can I rate-limit create_variable_set? +

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

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

create_variable_set is provided by the ServiceNow MCP Server MCP server (divyashah0510/mcp-server-servicenow). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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