create_portal_page
Create a new page inside a Service Portal (requires WRITE_ENABLED=true)
This record as markdown: /tools/servicenow-mcp-server/create-portal-page.md
What create_portal_page does on ServiceNow MCP Server
AI agents use create_portal_page 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_portal_page is rated Medium
This tool creates new portal pages, which is a reversible write operation. It does not execute arbitrary code, delete data, or move financial resources. However, severity is high because creating portal pages can affect customer-facing interfaces and potentially impact multiple users if malicious content is injected or legitimate pages are overwritten, though the operation is technically reversible.
From the tool's definition Tool name 'create_portal_page' and description 'Create a new page inside a Service Portal' indicate the tool creates new content. The requirement flag 'WRITE_ENABLED=true' confirms write/modification intent.
Attacks that exploit this kind of access
The rule that runs create_portal_page 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_portal_page, this is the rule to start with:
create_portal_page 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_portal_page call is checked against it from then on.
Questions about create_portal_page
Create a new page inside a Service Portal (requires WRITE_ENABLED=true). 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_portal_page: 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_portal_page 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_portal_page 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_portal_page. 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_portal_page 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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