snow_send_push · Serac MCP: Risk & Policy

WHAT IT DOES

What snow_send_push does on Serac

AI agents use snow_send_push 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_send_push needs a policy

This is a Write operation because it creates notification records and sends messages to mobile devices, which is a reversible state change (notifications can be cleared/ignored and the action doesn't destroy data).

From the tool's definition Tool sends notifications via ServiceNow's push notification API endpoint (/api/now/v1/push/notification). The description explicitly states it 'push[es] a notification (title + body) to one or more registered mobile device IDs', indicating it creates and…

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

snow_send_push Rate-limited

snow_send_push 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_send_push": {
      "limits": [
        {
          "counter": "snow_send_push_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_send_push

What does the snow_send_push tool do? +

Push a notification (title + body) to one or more registered mobile device IDs via /api/now/v1/push/notification. Use snow_send_notification for the multi-channel email/sms/push wrapper. 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_send_push? +

Register the Serac MCP server in PolicyLayer and add a rule for snow_send_push: 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_send_push? +

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

Can I rate-limit snow_send_push? +

Yes. Add a rate_limit block to the snow_send_push 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_send_push completely? +

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

snow_send_push 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.

// THE FULL RECORD

snow_send_push is one line of Serac's registry record.

The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.

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