Search the CMDB (cmdb_ci and every subclass: cmdb_ci_server, cmdb_ci_db_instance, cmdb_ci_appl, …) by class, name, discovery source, install status, and last-discovered date range. This is the workhorse for assessing CMDB shape and data quality. Returns a paginated summary list ordered by most re...
AI agents call search_cis to retrieve information from ServiceNow MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Even though search_cis only reads data, uncontrolled read access leaks sensitive information and racks up API costs — an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.
Risk signalsBulk/mass operation — affects multiple targets
Attacks that exploit this kind of access
Search the CMDB (cmdb_ci and every subclass: cmdb_ci_server, cmdb_ci_db_instance, cmdb_ci_appl, …) by class, name, discovery source, install status, and last-discovered date range. This is the workhorse for assessing CMDB shape and data quality. Returns a paginated summary list ordered by most recently updated. It is categorised as a Read tool in the ServiceNow MCP Server MCP Server, which means it retrieves data without modifying state.
Register the ServiceNow MCP Server MCP server in PolicyLayer and add a rule for search_cis: 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.
search_cis 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 search_cis 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 search_cis. 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.
search_cis is provided by the ServiceNow MCP Server MCP server (windoze95/servicewow-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.