Get full details of a ServiceNow change request by number (CHG...) or sys_id, including implementation, backout, and test plans. Args: - identifier (string): Change number (CHG0001234) or sys_id - response_format: Output format Returns: Complete change request including all planning fields
AI agents call servicenow_get_change to retrieve information from Servicenow without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves existing change request data from ServiceNow. It has no side effects—it does not modify, delete, or execute anything. The blast radius of misuse is minimal; an attacker could gain visibility into change management plans but could not alter them or trigger actions. This is a straightforward Read operation.
From the tool's definition Tool retrieves 'full details of a ServiceNow change request' with no modification capability. The verb 'Get' and the fact it returns 'Complete change request' data indicates a read-only query operation.
Attacks that exploit this kind of access
Get full details of a ServiceNow change request by number (CHG...) or sys_id, including implementation, backout, and test plans. Args: - identifier (string): Change number (CHG0001234) or sys_id - response_format: Output format Returns: Complete change request including all planning fields. It is categorised as a Read tool in the Servicenow MCP Server, which means it retrieves data without modifying state.
Register the Servicenow MCP server in PolicyLayer and add a rule for servicenow_get_change: 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. Nothing to install.
servicenow_get_change 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 servicenow_get_change 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 servicenow_get_change. 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.
servicenow_get_change is provided by the Servicenow MCP server (kylburns89/servicenow-mcp-server). 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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