List USEM/Vulnerability Response automation rules of a given type (assignment,
AI agents call list_usem_rules to retrieve information from ServiceNow-MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves or enumerates automation rules from ServiceNow's USEM (Unified Security Event Management) / Vulnerability Response system. There is no indication of modification, deletion, execution of code, or financial impact. It is a straightforward query operation to fetch rule metadata for informational purposes.
From the tool's definition Tool name 'list_usem_rules' and description 'List USEM/Vulnerability Response automation rules' indicate data retrieval with no modification or execution. The verb 'list' is a quintessential read operation that queries existing rules without side effects.
Attacks that exploit this kind of access
List USEM/Vulnerability Response automation rules of a given type (assignment,. It is categorised as a Read tool in the ServiceNow-MCP MCP Server, which means it retrieves data without modifying state.
Register the ServiceNow- MCP server in PolicyLayer and add a rule for list_usem_rules: 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.
list_usem_rules is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the list_usem_rules 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.
Set action: deny in the PolicyLayer policy for list_usem_rules. 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.
list_usem_rules 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.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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