update_catalog_item

Update an existing catalog item (requires WRITE_ENABLED=true)

SERVERServiceNow MCP Server SOURCE@aartiq/servicenow-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity verified Pull the record →

This record as markdown: /tools/servicenow-mcp-server/update-catalog-item.md

WHAT IT DOES

What update_catalog_item does on ServiceNow MCP Server

AI agents use update_catalog_item 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 update_catalog_item is rated Medium

This tool modifies existing catalog items in ServiceNow, which is a reversible write operation. It has high severity because catalog items may be critical to business processes (service offerings, product definitions), and unauthorized or erroneous updates could disrupt service delivery or expose incorrect information to users.

From the tool's definition Tool name 'update_catalog_item' and description 'Update an existing catalog item' indicate modification of data. The requirement note '(requires WRITE_ENABLED=true)' confirms this is a write operation, not read-only.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

update_catalog_item Rate-limited

update_catalog_item 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": {
    "update_catalog_item": {
      "limits": [
        {
          "counter": "update_catalog_item_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 update_catalog_item call is checked against it from then on.

FAQ

Questions about update_catalog_item

What does the update_catalog_item tool do? +

Update an existing catalog item (requires WRITE_ENABLED=true). 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 update_catalog_item? +

Register the ServiceNow MCP Server MCP server in PolicyLayer and add a rule for update_catalog_item: 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 update_catalog_item? +

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

Can I rate-limit update_catalog_item? +

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

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

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

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