Low Risk

get_alarm_history

get_alarm_history

How to control get_alarm_history ↓

What get_alarm_history does on Amazon EKS MCP Server

AI agents call get_alarm_history to retrieve information from Amazon EKS MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Low Risk

Why get_alarm_history needs a policy

This tool retrieves alarm history from AWS CloudWatch or similar monitoring systems. It has no side effects—it only queries and returns existing data. No creation, modification, deletion, or external execution occurs. While the empty description prevents maximum confidence, the 'get_' prefix and alarm history context are standard indicators of read-only operations in AWS tooling.

From the tool's definition Tool name 'get_alarm_history' indicates a retrieval operation that fetches historical alarm data. The empty description limits certainty, but the naming convention (get_) and context within an EKS monitoring/observability server strongly suggests this is a…

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

How to control get_alarm_history

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

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_alarm_history": {}
  }
}

get_alarm_history is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

  1. Create a free account and register Amazon EKS MCP Server — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
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Questions about get_alarm_history

What does the get_alarm_history tool do? +

get_alarm_history. It is categorised as a Read tool in the Amazon EKS MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_alarm_history? +

Register the Amazon EKS MCP Server MCP server in PolicyLayer and add a rule for get_alarm_history: 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 Amazon EKS MCP Server. Nothing to install.

What risk level is get_alarm_history? +

get_alarm_history is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_alarm_history? +

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

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

get_alarm_history is provided by the Amazon EKS MCP Server MCP server (awslabs.eks-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 Amazon EKS MCP Server tool call.

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

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