unsubscribe_alerts

THE RISK

Medium Risk

Why unsubscribe_alerts needs a policy

This tool terminates a subscription/connection and clears buffered data. While 'clears the alert buffer' suggests some data loss, the buffer is ephemeral/transient data (not persistent records), and the subscription can presumably be re-established. The primary action is modifying state (disconnecting and clearing), which is reversible — making Write the most appropriate category.

From the tool's definition Disconnect from RedAlert Socket.IO server and stop receiving real-time alerts. Clears the alert buffer.

Documented attack patterns abuse exactly the kind of access unsubscribe_alerts gives an agent:

POLICY

How to control unsubscribe_alerts

PolicyLayer is an MCP gateway — it sits between your AI agents and RedAlert MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for unsubscribe_alerts:

policy.json

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

unsubscribe_alerts 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.

Create a free account and register RedAlert MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More RedAlert MCP Server tools

Execute subscribe_alerts Connect to RedAlert Socket.IO server and start receiving real-time emergency alerts. Optio Read get_active_alerts Get real-time snapshot of cities currently under alert, grouped by alert type (missiles, e Read get_alert_subscription_status Check the current real-time alert subscription status including connection state, subscrib Read get_cities Get city catalog for lookups - raw location records with optional translations, coordinate Read get_stats_cities Get city-level alert statistics with pagination, search, and optional translations/coordin Read get_stats_distribution Get alert distribution grouped by category or origin, with filtering, sorting, and paginat Read get_stats_history Get detailed historical alert records with full city data, filtering, sorting, and paginat Read get_stats_summary Get high-level overview of the alert system: totals, unique cities/zones, and optional top

All 12 RedAlert MCP Server tools →

Write tools on other servers

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about unsubscribe_alerts

What does the unsubscribe_alerts tool do? +

Disconnect from RedAlert Socket.IO server and stop receiving real-time alerts. Clears the alert buffer. It is categorised as a Write tool in the RedAlert MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on unsubscribe_alerts? +

Register the RedAlert MCP Server MCP server in PolicyLayer and add a rule for unsubscribe_alerts: 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 RedAlert MCP Server. Nothing to install.

What risk level is unsubscribe_alerts? +

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

Can I rate-limit unsubscribe_alerts? +

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

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

unsubscribe_alerts is provided by the RedAlert MCP Server MCP server (ozba/redalert-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every RedAlert MCP Server tool call.

Start from RedAlert MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →