ml_auto_categorize
Auto-categorize a record based on its description by analysing resolved records of the same table.
This record as markdown: /tools/nowaikit-servicenow-ai-toolkit/ml-auto-categorize.md
What ml_auto_categorize does on NowAIKit — ServiceNow AI Toolkit
AI agents use ml_auto_categorize 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.
Why ml_auto_categorize is rated Medium
The tool modifies a record by writing a category value to it, which is a reversible data change (Write). It also performs analysis on existing records to derive the category, but the primary effect is updating/categorizing the target record. Misuse could result in incorrect categorization of records at scale, but changes are reversible.
From the tool's definition Auto-categorize a record based on its description by analysing resolved records of the same table.
Attacks that exploit this kind of access
The rule that runs ml_auto_categorize 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 ml_auto_categorize, this is the rule to start with:
ml_auto_categorize 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.
The button opens the PolicyLayer dashboard: create your workspace, connect NowAIKit — ServiceNow AI Toolkit, apply this rule, and every ml_auto_categorize call is checked against it from then on.
Questions about ml_auto_categorize
Auto-categorize a record based on its description by analysing resolved records of the same table. 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.
Register the NowAIKit — ServiceNow AI Toolkit MCP server in PolicyLayer and add a rule for ml_auto_categorize: 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.
ml_auto_categorize is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the ml_auto_categorize 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.
Set action: deny in the PolicyLayer policy for ml_auto_categorize. 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.
ml_auto_categorize 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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