get_acl

Get full details of an ACL rule including its script and role requirements (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-acl.md

WHAT IT DOES

What get_acl does on ServiceNow MCP Server

AI agents call get_acl 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_acl is rated Low

Classified as Read because the tool queries and retrieves data (ACL rule details, scripts, role requirements) without modifying or deleting anything. However, severity is rated 'high' rather than 'low' because ACL rules and their scripts often contain sensitive security logic, access control policies, and potentially exposed credential handling or authorization bypasses.

From the tool's definition Tool retrieves 'full details of an ACL rule including its script and role requirements'. This is fundamentally a retrieval operation ('Get') with no modification capability mentioned.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

get_acl Allowed

get_acl 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_acl": {}
  }
}

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_acl call is checked against it from then on.

FAQ

Questions about get_acl

What does the get_acl tool do? +

Get full details of an ACL rule including its script and role requirements (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_acl? +

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

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

Can I rate-limit get_acl? +

Yes. Add a rate_limit block to the get_acl 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_acl completely? +

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

get_acl 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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