snow_create_ci · Serac MCP: Risk & Policy

WHAT IT DOES

What snow_create_ci does on Serac

AI agents use snow_create_ci 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_create_ci needs a policy

This tool creates new configuration items in CMDB, which is a reversible write operation. It modifies the state of the ServiceNow system by adding records but does not execute arbitrary code, delete data irreversibly, or move money. However, the severity is high because misconfigured CIs in CMDB can impact IT operations, asset tracking, and change management processes across an enterprise environment.

From the tool's definition Tool name 'snow_create_ci' and description 'Create Configuration Item in CMDB' indicate creation of new data records in ServiceNow's Configuration Management Database.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

snow_create_ci Rate-limited

snow_create_ci 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_create_ci": {
      "limits": [
        {
          "counter": "snow_create_ci_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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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_create_ci

What does the snow_create_ci tool do? +

Create Configuration Item in CMDB. 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_create_ci? +

Register the Serac MCP server in PolicyLayer and add a rule for snow_create_ci: 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_create_ci? +

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

Can I rate-limit snow_create_ci? +

Yes. Add a rate_limit block to the snow_create_ci 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_create_ci completely? +

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

snow_create_ci 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.