AI agents use snow_uib_page_manage to create or update resources in Serac — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Serac environment.
This tool manages ServiceNow Unified Interface Builder (UIB) pages with both creation and modification capabilities (Write) and deletion capability (Destructive). The most severe applicable category would be Destructive, but since the tool encompasses multiple operations with create/add/remove being core functions, Write is appropriate.
From the tool's definition Tool description specifies: 'create via Builder Toolkit, delete, add_element, remove_element'. The create, add_element, and remove_element operations are Write category (reversible modifications to UIB pages).
Attacks that exploit this kind of access
Unified UIB page management (create via Builder Toolkit, delete, add_element, remove_element). It is categorised as a Write tool in the Serac MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Serac MCP server in PolicyLayer and add a rule for snow_uib_page_manage: 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 Serac. Nothing to install.
snow_uib_page_manage 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 snow_uib_page_manage 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 snow_uib_page_manage. 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.
snow_uib_page_manage is provided by the Serac MCP server (serac-labs/serac). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
snow_uib_page_manage is one line of Serac's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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