update_hp_cluster · Awslabs Valkey MCP: Risk & Policy

WHAT IT DOES

What update_hp_cluster does on Awslabs Valkey

AI agents use update_hp_cluster to create or update resources in Awslabs Valkey — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Awslabs Valkey environment.

WHY IT NEEDS A POLICY

Why update_hp_cluster needs a policy

The tool performs a Write action (update) on ElastiCache cluster infrastructure. While not destructive (update is reversible), modifying a production cluster could cause downtime, service disruption, or data loss depending on the specific parameters changed.

From the tool's definition Tool name 'update_hp_cluster' indicates modification of a cluster configuration in AWS ElastiCache/MemoryDB. The name uses 'update' which is a Write operation verb.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_hp_cluster Rate-limited

update_hp_cluster 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": {
    "update_hp_cluster": {
      "limits": [
        {
          "counter": "update_hp_cluster_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 Awslabs Valkey, so you can run agents against it safely.

FAQ

Questions about update_hp_cluster

What does the update_hp_cluster tool do? +

update_hp_cluster. It is categorised as a Write tool in the Awslabs Valkey MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on update_hp_cluster? +

Register the Awslabs Valkey MCP server in PolicyLayer and add a rule for update_hp_cluster: 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 update_hp_cluster? +

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

Can I rate-limit update_hp_cluster? +

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

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

update_hp_cluster 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.