get_catalog_category

THE RISK

Low Risk

Why get_catalog_category needs a policy

This tool retrieves or queries data (service catalog category details) with no side effects. It does not create, modify, delete, or execute operations. The read-only nature and limited scope of accessing catalog metadata make it a low-severity Read operation.

From the tool's definition Tool name 'get_catalog_category' and description indicate retrieval of service catalog category details by sys_id. The verb 'Get' and action of retrieving/querying category information without modification confirm read-only operation.

Documented attack patterns abuse exactly the kind of access get_catalog_category gives an agent:

POLICY

How to control get_catalog_category

PolicyLayer is an MCP gateway — it sits between your AI agents and Now Sdk Ext, and nothing reaches the server without passing your rules. This is the rule we recommend for get_catalog_category:

policy.json

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

get_catalog_category is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Now Sdk Ext — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

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EXPLORE

Related tools and policies

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All 86 Now Sdk Ext tools →

Read tools on other servers

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about get_catalog_category

What does the get_catalog_category tool do? +

Get details of a specific service catalog category by sys_id, including the. It is categorised as a Read tool in the Now Sdk Ext MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_catalog_category? +

Register the Now Sdk Ext MCP server in PolicyLayer and add a rule for get_catalog_category: 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 Now Sdk Ext. Nothing to install.

What risk level is get_catalog_category? +

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

Can I rate-limit get_catalog_category? +

Yes. Add a rate_limit block to the get_catalog_category 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_catalog_category completely? +

Set action: deny in the PolicyLayer policy for get_catalog_category. 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_catalog_category? +

get_catalog_category is provided by the Now Sdk Ext MCP server (sonisoft-cnanda/now-sdk-ext-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Now Sdk Ext tool call.

Start from Now Sdk Ext, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →