list_remove · Amazon ElastiCache Memcached MCP Server MCP

WHAT IT DOES

What list_remove does on Amazon ElastiCache Memcached MCP Server

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

WHY IT NEEDS A POLICY

Why list_remove needs a policy

This tool modifies a Memcached list by removing specific values. While it is a deletion of data within a data structure, it operates on a cache (which is inherently ephemeral and reversible by re-insertion), making it a Write/modify operation rather than a truly irreversible Destructive action. The blast radius is medium as misuse could corrupt cached data structures.

From the tool's definition Remove occurrences of value from list

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

list_remove Rate-limited

list_remove 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": {
    "list_remove": {
      "limits": [
        {
          "counter": "list_remove_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 ElastiCache Memcached MCP Server, so you can run agents against it safely.

FAQ

Questions about list_remove

What does the list_remove tool do? +

Remove occurrences of value from list. It is categorised as a Write tool in the Amazon ElastiCache Memcached 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 list_remove? +

Register the Amazon ElastiCache Memcached MCP Server MCP server in PolicyLayer and add a rule for list_remove: 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 ElastiCache Memcached MCP Server. Nothing to install.

What risk level is list_remove? +

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

Can I rate-limit list_remove? +

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

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

list_remove is provided by the Amazon ElastiCache Memcached MCP Server MCP server (awslabs.memcached-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.