create_uib_data_broker
Create a UI Builder data broker to feed data to a page. [Scripting]
This record as markdown: /tools/servicenow-mcp-server/create-uib-data-broker.md
What create_uib_data_broker does on ServiceNow MCP Server
AI agents use create_uib_data_broker to create or update resources in ServiceNow MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your ServiceNow MCP Server environment.
Why create_uib_data_broker is rated Medium
This tool creates a new UI Builder data broker, which is a Write operation (creating a new configuration/resource in ServiceNow). The [Scripting] tag elevates severity because the data broker likely contains executable script logic that feeds data to UI pages, meaning a miscreated broker could inject malicious scripts or expose sensitive data to UI consumers.
From the tool's definition 'Create a UI Builder data broker' — creates a new resource; '[Scripting]' tag indicates scripted/code component is involved
Attacks that exploit this kind of access
The rule that runs create_uib_data_broker safely
PolicyLayer is an MCP gateway: it sits between your AI agents and ServiceNow MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For create_uib_data_broker, this is the rule to start with:
create_uib_data_broker stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect ServiceNow MCP Server, apply this rule, and every create_uib_data_broker call is checked against it from then on.
Questions about create_uib_data_broker
Create a UI Builder data broker to feed data to a page. [Scripting]. It is categorised as a Write tool in the ServiceNow MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the ServiceNow MCP Server MCP server in PolicyLayer and add a rule for create_uib_data_broker: 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.
create_uib_data_broker is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the create_uib_data_broker 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 create_uib_data_broker. 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.
create_uib_data_broker is provided by the ServiceNow MCP Server MCP server (@aartiq/servicenow-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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