create_knowledge_base · ServiceNow MCP Server MCP

WHAT IT DOES

What create_knowledge_base does on ServiceNow MCP Server

AI agents use create_knowledge_base 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.

WHY IT NEEDS A POLICY

Why create_knowledge_base needs a policy

This tool creates a new knowledge base, which is a reversible write operation. While it adds a new resource to ServiceNow, it does not execute arbitrary code, delete data, move money, or cause irreversible damage. An AI agent could misuse this by creating unwanted knowledge bases that consume resources or clutter the system, but the action can be undone by deletion.

From the tool's definition Tool name 'create_knowledge_base' and description 'Create a new knowledge base in ServiceNow' indicate this operation creates a new data structure (knowledge base) in the ServiceNow system.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_knowledge_base Rate-limited

create_knowledge_base 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_base": {
      "limits": [
        {
          "counter": "create_knowledge_base_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 Server, so you can run agents against it safely.

FAQ

Questions about create_knowledge_base

What does the create_knowledge_base tool do? +

Create a new knowledge base in ServiceNow. 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_knowledge_base? +

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

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

Can I rate-limit create_knowledge_base? +

Yes. Add a rate_limit block to the create_knowledge_base 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_base completely? +

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

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