create_script_include · ServiceNow- MCP: Risk & Policy

WHAT IT DOES

What create_script_include does on ServiceNow-MCP

AI agents invoke create_script_include to trigger actions in ServiceNow-MCP. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why create_script_include needs a policy

Script includes are reusable server-side JavaScript libraries in ServiceNow. Creating one introduces executable code into the platform that can be invoked by other scripts, business rules, or workflows. This is effectively arbitrary code execution with platform-wide blast radius. The SCRIPTING_ENABLED guard confirms the elevated risk.

From the tool's definition 'Create a new script include (requires SCRIPTING_ENABLED=true)' — creates executable server-side JavaScript code in ServiceNow

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_script_include Rate-limited

create_script_include stays usable, but rate-capped — a runaway agent can't fire it dozens of times 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_script_include": {
      "limits": [
        {
          "counter": "create_script_include_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-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_script_include

What does the create_script_include tool do? +

Create a new script include (requires SCRIPTING_ENABLED=true). It is categorised as a Execute tool in the ServiceNow-MCP MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on create_script_include? +

Register the ServiceNow- MCP server in PolicyLayer and add a rule for create_script_include: 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_script_include? +

create_script_include is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit create_script_include? +

Yes. Add a rate_limit block to the create_script_include 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_script_include completely? +

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

create_script_include 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.