esm_kafka_diagnosis

THE RISK

Low Risk

Why esm_kafka_diagnosis needs a policy

With no description available, the tool's behavior cannot be reliably determined. The name suggests a diagnostic (likely Read) operation, but confidence is very low. Defaulting to Other given the lack of evidence.

From the tool's definition Tool description is empty and uninformative; the tool name 'esm_kafka_diagnosis' suggests diagnostic/read activity related to Kafka event source mapping, but cannot be confirmed.

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

POLICY

How to control esm_kafka_diagnosis

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

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "esm_kafka_diagnosis": {
      "limits": [
        {
          "counter": "esm_kafka_diagnosis_rate",
          "window": "minute",
          "max": 60,
          "scope": "grant"
        }
      ]
    }
  }
}

esm_kafka_diagnosis gets a rate cap, and everything else on the server is denied unless you say otherwise.

Create a free account and register CloudWatch Application Signals 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.

SET A RULE FOR THIS TOOL →

Free to start. No card required.

EXPLORE

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Tool risk categories → How PolicyLayer classifies MCP tools by what they can do.
MCP tool → What an MCP tool is and how clients discover and call it.
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FAQ

Questions about esm_kafka_diagnosis

What does the esm_kafka_diagnosis tool do? +

esm_kafka_diagnosis. It is categorised as a Other tool in the CloudWatch Application Signals MCP Server MCP Server, which means it performs auxiliary operations.

How do I enforce a policy on esm_kafka_diagnosis? +

Register the CloudWatch Application Signals MCP Server MCP server in PolicyLayer and add a rule for esm_kafka_diagnosis: 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 CloudWatch Application Signals MCP Server. Nothing to install.

What risk level is esm_kafka_diagnosis? +

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

Can I rate-limit esm_kafka_diagnosis? +

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

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

esm_kafka_diagnosis is provided by the CloudWatch Application Signals MCP Server MCP server (awslabs.cloudwatch-applicationsignals-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 CloudWatch Application Signals MCP Server tool call.

Start from CloudWatch Application Signals 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 →