aggregate

THE RISK

Low Risk

Why aggregate needs a policy

The name 'aggregate' could imply a read/query operation (aggregating data) but without any description, it's impossible to determine the actual behavior. In a Memcached context, aggregate might mean combining statistics or data reads, suggesting Read, but confidence is very low due to empty description.

From the tool's definition Tool name is 'aggregate' with an empty description. No information about what it does beyond the name.

Documented attack patterns abuse exactly the kind of access aggregate gives an agent:

POLICY

How to control aggregate

PolicyLayer is an MCP gateway — it sits between your AI agents and Amazon ElastiCache Memcached MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for aggregate:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "aggregate": {
      "limits": [
        {
          "counter": "aggregate_rate",
          "window": "minute",
          "max": 60,
          "scope": "grant"
        }
      ]
    }
  }
}

aggregate gets a rate cap, and everything else on the server is denied unless you say otherwise.

Create a free account and register Amazon ElastiCache Memcached MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

SET A RULE FOR THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Amazon ElastiCache Memcached MCP Server tools

Destructive bulk_delete_by_criteria bulk_delete_by_criteria Destructive cache_delete Delete a value from the cache. Destructive cache_delete_many Delete multiple values from the cache. Destructive cache_delete_multi Delete multiple values from the cache (alias for delete_many). Destructive delete delete Destructive delete_access_key delete_access_key Destructive delete_agent_runtime delete_agent_runtime Destructive delete_agent_runtime_endpoint delete_agent_runtime_endpoint

All 805 Amazon ElastiCache Memcached MCP Server tools →

Other tools on other servers

Android Forensics ADB MCP Server generate_app_analysis_report Ethereum Tools add Math MCP Server complex_analysis_suite Crypto_MCP aes_encrypt

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Tool risk categories → How PolicyLayer classifies MCP tools by what they can do.
MCP tool → What an MCP tool is and how clients discover and call it.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about aggregate

What does the aggregate tool do? +

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

How do I enforce a policy on aggregate? +

Register the Amazon ElastiCache Memcached MCP Server MCP server in PolicyLayer and add a rule for aggregate: 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 aggregate? +

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

Can I rate-limit aggregate? +

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

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

aggregate 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.

Enforce policy on every Amazon ElastiCache Memcached MCP Server tool call.

Start from Amazon ElastiCache Memcached MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →