Get the full definition of a single USEM/VR rule by sys_id.
AI agents call get_usem_rule 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 configuration data (USEM/VR rule definitions) from ServiceNow by identifier with no side effects. It does not create, modify, execute, delete, or commit financial actions. The blast radius of misuse is limited to information disclosure of internal rule configurations.
From the tool's definition Tool name 'get_usem_rule' and description 'Get the full definition of a single USEM/VR rule by sys_id' indicate a retrieval operation. The verb 'Get' and the absence of any modification, execution, or deletion language confirm this is a read-only query.
Attacks that exploit this kind of access
Get the full definition of a single USEM/VR rule by sys_id. 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 get_usem_rule: 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.
get_usem_rule 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 get_usem_rule 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 get_usem_rule. 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.
get_usem_rule 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.
Teams ship this data inside their own products. See what a licence covers →