gateway_target_list · Amazon Data Processing MCP Server MCP

WHAT IT DOES

What gateway_target_list does on Amazon Data Processing MCP Server

AI agents call gateway_target_list to retrieve information from Amazon Data Processing MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

THE RISK

Low Risk

Why gateway_target_list needs a policy

The name implies retrieving or listing gateway targets without modification. The absence of verbs like 'create', 'delete', 'modify', 'execute', or 'pay' suggests a read-only operation. However, confidence is moderate (0.6) due to the empty description—the actual implementation could perform unexpected actions.

From the tool's definition Tool name 'gateway_target_list' suggests a list/query operation that retrieves gateway targets. No description provided to confirm the exact behavior.

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

POLICY

How to control gateway_target_list

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

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "gateway_target_list": {}
  }
}

gateway_target_list is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Amazon Data Processing 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.

CAP THIS TOOL →

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EXPLORE

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Go deeper

Roll out MCP under one policy → Per-person scoped tokens, one central policy, and full audit across every server your team connects.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →
PolicyLayer vs alternatives → How deterministic, per-call MCP policy compares with gateways, identity layers, and authorisation platforms.

FAQ

Questions about gateway_target_list

What does the gateway_target_list tool do? +

gateway_target_list. It is categorised as a Read tool in the Amazon Data Processing MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on gateway_target_list? +

Register the Amazon Data Processing MCP Server MCP server in PolicyLayer and add a rule for gateway_target_list: 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 Data Processing MCP Server. Nothing to install.

What risk level is gateway_target_list? +

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

Can I rate-limit gateway_target_list? +

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

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

gateway_target_list is provided by the Amazon Data Processing MCP Server MCP server (awslabs.aws-dataprocessing-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 Data Processing MCP Server tool call.

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

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805 Amazon Data Processing MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.