snow_emergency_broadcast · Serac MCP: Risk & Policy

WHAT IT DOES

What snow_emergency_broadcast does on Serac

AI agents use snow_emergency_broadcast 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_emergency_broadcast needs a policy

This tool sends notifications to all users or specific groups, which is a Write operation (creating/sending messages). The blast radius is high because a misconfigured or malicious invocation could spam every user in the organization with a false emergency alert, causing panic, operational disruption, or loss of trust — but it does not irreversibly delete data or move money.

From the tool's definition Send emergency broadcast notification to all users or specific groups

Risk signalsBulk/mass operation — affects multiple targets

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

snow_emergency_broadcast Rate-limited

snow_emergency_broadcast 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_emergency_broadcast": {
      "limits": [
        {
          "counter": "snow_emergency_broadcast_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_emergency_broadcast

What does the snow_emergency_broadcast tool do? +

Send emergency broadcast notification to all users or specific groups. 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_emergency_broadcast? +

Register the Serac MCP server in PolicyLayer and add a rule for snow_emergency_broadcast: 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_emergency_broadcast? +

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

Can I rate-limit snow_emergency_broadcast? +

Yes. Add a rate_limit block to the snow_emergency_broadcast 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_emergency_broadcast completely? +

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

snow_emergency_broadcast 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.