update_catalog_item

Update an existing catalog item (requires WRITE_ENABLED=true)

SERVERNowAIKit — ServiceNow AI Toolkit SOURCEnowaikit

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/nowaikit-servicenow-ai-toolkit/update-catalog-item.md

WHAT IT DOES

What update_catalog_item does on NowAIKit — ServiceNow AI Toolkit

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

RISK

Why update_catalog_item is rated Medium

This tool creates or modifies data reversibly by updating catalog items in ServiceNow. It is not destructive (does not delete or irreversibly remove data), does not execute arbitrary code, and does not involve financial transactions.

From the tool's definition Tool name 'update_catalog_item' combined with description 'Update an existing catalog item' directly indicates modification of data. The description explicitly notes a WRITE_ENABLED requirement, confirming write operations.

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 NowAIKit — ServiceNow AI Toolkit, 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 NowAIKit — ServiceNow AI Toolkit, 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 NowAIKit — ServiceNow AI Toolkit 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 NowAIKit — ServiceNow AI Toolkit 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 NowAIKit — ServiceNow AI Toolkit. 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 NowAIKit — ServiceNow AI Toolkit MCP server (nowaikit). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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