list_language_pairs

THE RISK

Low Risk

Why list_language_pairs needs a policy

This tool retrieves and lists static translation configuration data. It has no side effects, performs no state changes, executes no code, and does not delete or modify data. It is a simple informational query operation with minimal blast radius if misused by an AI agent.

From the tool's definition Tool name 'list_language_pairs' and description 'List all supported language pairs for translation' indicate a query operation that retrieves configuration data without modification.

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

POLICY

How to control list_language_pairs

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

policy.json

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

list_language_pairs 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 EKS 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.

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EXPLORE

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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 →
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FAQ

Questions about list_language_pairs

What does the list_language_pairs tool do? +

List all supported language pairs for translation. It is categorised as a Read tool in the Amazon EKS MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_language_pairs? +

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

What risk level is list_language_pairs? +

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

Can I rate-limit list_language_pairs? +

Yes. Add a rate_limit block to the list_language_pairs 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_language_pairs completely? +

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

list_language_pairs is provided by the Amazon EKS MCP Server MCP server (awslabs.eks-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 EKS MCP Server tool call.

Start from Amazon EKS 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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