esm_kafka_diagnosis · Awslabs Valkey MCP: Risk & Policy

WHAT IT DOES

What esm_kafka_diagnosis does on Awslabs Valkey

AI agents call esm_kafka_diagnosis as a supporting operation in Awslabs Valkey workflows.

WHY IT NEEDS A POLICY

Why esm_kafka_diagnosis needs a policy

The description is empty, providing no concrete evidence of what this tool does. The name suggests a diagnostic operation (read/analyze), but 'diagnosis' could involve executing queries or checks. Given the ambiguity, 'Other' is appropriate with low confidence, though if it truly is diagnostic it would be Read. Severity set to medium as a precaution given the unknown nature.

From the tool's definition Tool description is empty; tool name 'esm_kafka_diagnosis' suggests diagnostic/read operations on Kafka via ESM

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

esm_kafka_diagnosis Rate-limited

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

View as policy code

policy.json

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

SET A RULE FOR THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Awslabs Valkey, so you can run agents against it safely.

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 Awslabs Valkey MCP Server, which means it performs auxiliary operations.

How do I enforce a policy on esm_kafka_diagnosis? +

Register the Awslabs Valkey 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 Awslabs Valkey. 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 Awslabs Valkey MCP server (awslabs.valkey-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.