disconnect · Awslabs Valkey MCP: Risk & Policy

WHAT IT DOES

What disconnect does on Awslabs Valkey

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

WHY IT NEEDS A POLICY

Why disconnect needs a policy

The tool name 'disconnect' on a Valkey/ElastiCache MCP server likely terminates a connection to the cache instance. Without a description, it's hard to be certain, but disconnecting from a database/cache is typically a reversible, non-destructive operation — it doesn't read, write, execute code, destroy data, or move money. It most closely fits 'Other'. Confidence is low due to empty description.

From the tool's definition Tool name is 'disconnect'; description is empty or uninformative.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

disconnect Rate-limited

disconnect 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": {
    "disconnect": {
      "limits": [
        {
          "counter": "disconnect_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 disconnect

What does the disconnect tool do? +

disconnect. 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 disconnect? +

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

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

Can I rate-limit disconnect? +

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

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

disconnect 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.