snow_user_manage · Serac MCP: Risk & Policy

WHAT IT DOES

What snow_user_manage does on Serac

AI agents use snow_user_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.

WHY IT NEEDS A POLICY

Why snow_user_manage needs a policy

User creation and deactivation are Write operations as they modify user data reversibly. Deactivation is not permanent deletion (which would be Destructive), and no financial or code execution elements are present. Severity is high because unauthorized user management could compromise enterprise access control and security posture in ServiceNow environments.

From the tool's definition Tool description explicitly states 'create, deactivate' which are reversible user management operations. 'Create' adds new user records; 'deactivate' modifies user status rather than permanently deleting.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

snow_user_manage Rate-limited

snow_user_manage 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "snow_user_manage": {
      "limits": [
        {
          "counter": "snow_user_manage_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Serac, so you can run agents against it safely.

FAQ

Questions about snow_user_manage

What does the snow_user_manage tool do? +

Unified user management (create, deactivate). 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.

How do I enforce a policy on snow_user_manage? +

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

What risk level is snow_user_manage? +

snow_user_manage is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit snow_user_manage? +

Yes. Add a rate_limit block to the snow_user_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.

How do I block snow_user_manage completely? +

Set action: deny in the PolicyLayer policy for snow_user_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.

What MCP server provides snow_user_manage? +

snow_user_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.