get_client_script

Get full details and script body of a client script (requires SCRIPTING_ENABLED=true)

SERVERServiceNow MCP Server SOURCE@aartiq/servicenow-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity verified Pull the record →

This record as markdown: /tools/servicenow-mcp-server/get-client-script.md

WHAT IT DOES

What get_client_script does on ServiceNow MCP Server

AI agents call get_client_script to retrieve information from ServiceNow MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why get_client_script is rated Low

This tool retrieves the full body of client-side scripts from ServiceNow, which is a Read operation. However, the severity is elevated to 'high' because client scripts often contain sensitive business logic, authentication tokens, API keys, or system configuration details that could be exploited if exposed to an unauthorized AI agent.

From the tool's definition Tool name is 'get_client_script' and description states 'Get full details and script body of a client script'. The verb 'get' and 'retrieve' indicate data retrieval with no modification.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs get_client_script safely

PolicyLayer is an MCP gateway: it sits between your AI agents and ServiceNow MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For get_client_script, this is the rule to start with:

get_client_script Allowed

get_client_script is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_client_script": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect ServiceNow MCP Server, apply this rule, and every get_client_script call is checked against it from then on.

FAQ

Questions about get_client_script

What does the get_client_script tool do? +

Get full details and script body of a client script (requires SCRIPTING_ENABLED=true). It is categorised as a Read tool in the ServiceNow MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_client_script? +

Register the ServiceNow MCP Server MCP server in PolicyLayer and add a rule for get_client_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 ServiceNow MCP Server. Nothing to install.

What risk level is get_client_script? +

get_client_script is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_client_script? +

Yes. Add a rate_limit block to the get_client_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 get_client_script completely? +

Set action: deny in the PolicyLayer policy for get_client_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 get_client_script? +

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

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