memory_create · Amazon MQ MCP Server MCP: Risk & Policy

WHAT IT DOES

What memory_create does on Amazon MQ MCP Server

AI agents use memory_create to create or update resources in Amazon MQ MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Amazon MQ MCP Server environment.

WHY IT NEEDS A POLICY

Why memory_create needs a policy

The 'create' verb classifies this as Write rather than Read. Without a detailed description, we cannot determine if it's destructive or financial, but the context of Amazon MQ (a message broker service) suggests it creates or provisions resources. Severity is medium because unintended creation of resources in AWS can incur costs and consume quota, though effects are typically reversible.

From the tool's definition Tool name is 'memory_create' which indicates creation of data/resources. The description is empty, limiting specificity, but 'create' pattern combined with the Amazon MQ context suggests provisioning or creating memory-related resources (likely message queue…

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

memory_create Rate-limited

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

FAQ

Questions about memory_create

What does the memory_create tool do? +

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

How do I enforce a policy on memory_create? +

Register the Amazon MQ MCP Server MCP server in PolicyLayer and add a rule for memory_create: 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_create? +

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

Can I rate-limit memory_create? +

Yes. Add a rate_limit block to the memory_create 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_create completely? +

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

memory_create 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.