create_knowledge_article · ServiceNow- MCP: Risk & Policy

WHAT IT DOES

What create_knowledge_article does on ServiceNow-MCP

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

WHY IT NEEDS A POLICY

Why create_knowledge_article needs a policy

This tool creates new data (knowledge articles) in ServiceNow, which is a reversible operation. Articles can be edited or deleted later. The impact is limited to knowledge base content rather than critical operational systems like incidents or changes. It does not execute code, delete data irreversibly, or involve financial operations.

From the tool's definition The tool description explicitly states it creates a new knowledge article. The requirement 'WRITE_ENABLED=true' confirms this is a data modification operation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_knowledge_article Rate-limited

create_knowledge_article 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_knowledge_article": {
      "limits": [
        {
          "counter": "create_knowledge_article_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

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

FAQ

Questions about create_knowledge_article

What does the create_knowledge_article tool do? +

Create a new knowledge article (requires WRITE_ENABLED=true). It is categorised as a Write tool in the ServiceNow-MCP 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_knowledge_article? +

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

What risk level is create_knowledge_article? +

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

Can I rate-limit create_knowledge_article? +

Yes. Add a rate_limit block to the create_knowledge_article 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_knowledge_article completely? +

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

create_knowledge_article is provided by the ServiceNow- MCP server (tedorigawa001/servicenow-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.