memory_update · Amazon MQ MCP Server MCP: Risk & Policy

WHAT IT DOES

What memory_update does on Amazon MQ MCP Server

AI agents call memory_update as a supporting operation in Amazon MQ MCP Server workflows.

WHY IT NEEDS A POLICY

Why memory_update needs a policy

With no description provided, it is impossible to determine the true function of 'memory_update'. The name suggests a write/update operation on some memory resource, but without context it could mean updating in-memory state, updating a memory configuration for a broker, or something else entirely. Lowering confidence due to empty description.

From the tool's definition Tool name is 'memory_update' but the description is empty and uninformative. The tool name alone does not clearly indicate what it does in the context of an Amazon MQ MCP server.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

memory_update Rate-limited

memory_update 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": {
    "memory_update": {
      "limits": [
        {
          "counter": "memory_update_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 Amazon MQ MCP Server, so you can run agents against it safely.

FAQ

Questions about memory_update

What does the memory_update tool do? +

memory_update. It is categorised as a Other tool in the Amazon MQ MCP Server MCP Server, which means it performs auxiliary operations.

How do I enforce a policy on memory_update? +

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

What risk level is memory_update? +

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

Can I rate-limit memory_update? +

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

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

memory_update is provided by the Amazon MQ MCP Server MCP server (awslabs.amazon-mq-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.