list_relationships

Show parent and child relationships for a CI

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/list-relationships.md

WHAT IT DOES

What list_relationships does on ServiceNow MCP Server

AI agents call list_relationships 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 list_relationships is rated Low

This tool queries and displays existing relationship data for a Configuration Item (CI) in ServiceNow. It performs a read-only operation with no side effects, data modification, or external state changes. The blast radius of misuse is minimal—an AI agent could retrieve relationship information but cannot alter, delete, or execute actions through this tool.

From the tool's definition Tool name 'list_relationships' and description 'Show parent and child relationships for a CI' indicate retrieval of relationship metadata without modification.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

list_relationships Allowed

list_relationships 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": {
    "list_relationships": {}
  }
}

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 list_relationships call is checked against it from then on.

FAQ

Questions about list_relationships

What does the list_relationships tool do? +

Show parent and child relationships for a CI. 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 list_relationships? +

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

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

Can I rate-limit list_relationships? +

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

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

list_relationships 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.

KEEP EXPLORING

More on ServiceNow MCP Server, and thousands of servers like it.

This server

All 365 ServiceNow MCP Server tools →

Across the catalogue

aiva_list_affiliates on AIVA MCP Server →list_agents on 0rca Dojo MCP Server → The MCP Attack Database →

Guides

Roll out MCP under one policy →Data exfiltration →MCP token cost →