get_portal_theme

Get full details of a Service Portal theme including CSS variables

SERVERServiceNow MCP Server SOURCE@aartiq/servicenow-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity verified Pull the record →

This record as markdown: /tools/servicenow-mcp-server/get-portal-theme.md

WHAT IT DOES

What get_portal_theme does on ServiceNow MCP Server

AI agents call get_portal_theme to retrieve information from ServiceNow MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why get_portal_theme is rated Low

This tool retrieves configuration data (CSS variables for a Service Portal theme) without modifying, executing code, or causing destructive changes. It is a straightforward query operation with minimal blast radius if misused — exposure of theme styling information poses no critical security or operational risk.

From the tool's definition Tool name is 'get_portal_theme' and description states 'Get full details of a Service Portal theme including CSS variables' — the verb 'Get' and context of retrieving theme details (CSS variables) indicates a read-only data retrieval operation with no side…

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs get_portal_theme 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 get_portal_theme, this is the rule to start with:

get_portal_theme Allowed

get_portal_theme is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_portal_theme": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect ServiceNow MCP Server, apply this rule, and every get_portal_theme call is checked against it from then on.

FAQ

Questions about get_portal_theme

What does the get_portal_theme tool do? +

Get full details of a Service Portal theme including CSS variables. It is categorised as a Read tool in the ServiceNow MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_portal_theme? +

Register the ServiceNow MCP Server MCP server in PolicyLayer and add a rule for get_portal_theme: 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.

What risk level is get_portal_theme? +

get_portal_theme is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_portal_theme? +

Yes. Add a rate_limit block to the get_portal_theme 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.

How do I block get_portal_theme completely? +

Set action: deny in the PolicyLayer policy for get_portal_theme. 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.

What MCP server provides get_portal_theme? +

get_portal_theme 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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