List UI Builder data brokers (data sources for pages)
AI agents call list_uib_data_brokers 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 queries and retrieves information about UI Builder data brokers—a read-only operation that returns configuration or metadata about available data sources. No data is modified, deleted, or executed. The blast radius of misuse is minimal; an attacker could learn about available data sources but cannot access actual data, modify configurations, or trigger actions through this tool alone.
From the tool's definition Tool name 'list_uib_data_brokers' and description 'List UI Builder data brokers (data sources for pages)' indicate a listing/query operation that retrieves metadata about data sources without modifying or executing operations.
Attacks that exploit this kind of access
List UI Builder data brokers (data sources for pages). 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_uib_data_brokers: 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_uib_data_brokers 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_uib_data_brokers 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_uib_data_brokers. 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_uib_data_brokers 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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