execute_script

Execute a server-side script on the ServiceNow instance (Background Script).

SERVERNowAIKit — ServiceNow AI Toolkit SOURCEnowaikit

High RISK CLASS

Category Execute

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/execute-script.md

WHAT IT DOES

What execute_script does on NowAIKit — ServiceNow AI Toolkit

AI agents invoke execute_script to trigger actions in NowAIKit — ServiceNow AI Toolkit. 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.

RISK

Why execute_script is rated High

This tool allows running arbitrary server-side scripts on a ServiceNow instance, which can perform any operation the ServiceNow user account permits—including reading, modifying, or deleting data; triggering workflows; accessing APIs; and potentially compromising system integrity.

From the tool's definition Tool name is 'execute_script' with description 'Execute a server-side script on the ServiceNow instance (Background Script).' The explicit use of 'Execute' and 'server-side script' indicates arbitrary code execution capabilities.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs execute_script 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 execute_script, this is the rule to start with:

execute_script Rate-limited

execute_script 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": {
    "execute_script": {
      "limits": [
        {
          "counter": "execute_script_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-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 execute_script call is checked against it from then on.

FAQ

Questions about execute_script

What does the execute_script tool do? +

Execute a server-side script on the ServiceNow instance (Background Script). It is categorised as a Execute tool in the NowAIKit — ServiceNow AI Toolkit MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on execute_script? +

Register the NowAIKit — ServiceNow AI Toolkit MCP server in PolicyLayer and add a rule for execute_script: 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 execute_script? +

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

Can I rate-limit execute_script? +

Yes. Add a rate_limit block to the execute_script 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 execute_script completely? +

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

execute_script 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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