snow_discover_catalogs

Discovers available service catalogs and their categories in the ServiceNow instance.

SERVERSerac SOURCEserac-labs/serac

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/serac/snow-discover-catalogs.md

WHAT IT DOES

What snow_discover_catalogs does on Serac

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

RISK

Why snow_discover_catalogs is rated Low

This tool retrieves/queries existing catalog data from the ServiceNow instance. 'Discovers' and 'available' indicate a read-only listing operation with no side effects.

From the tool's definition Discovers available service catalogs and their categories

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs snow_discover_catalogs safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Serac, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For snow_discover_catalogs, this is the rule to start with:

snow_discover_catalogs Allowed

snow_discover_catalogs 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": {
    "snow_discover_catalogs": {}
  }
}

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

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

FAQ

Questions about snow_discover_catalogs

What does the snow_discover_catalogs tool do? +

Discovers available service catalogs and their categories in the ServiceNow instance. It is categorised as a Read tool in the Serac MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on snow_discover_catalogs? +

Register the Serac MCP server in PolicyLayer and add a rule for snow_discover_catalogs: 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.

What risk level is snow_discover_catalogs? +

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

Can I rate-limit snow_discover_catalogs? +

Yes. Add a rate_limit block to the snow_discover_catalogs 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 snow_discover_catalogs completely? +

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

snow_discover_catalogs 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.

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