CreateTokenWithIAM

THE RISK

Low Risk

Why CreateTokenWithIAM needs a policy

The name suggests creating an IAM-based authentication token for EKS (likely eks:CreateTokenWithIAM for cluster access), which would be a Write/Execute action granting cluster authentication. However, the description is completely empty, making it impossible to confirm exact behavior. Token creation is typically a Write operation but could enable further privileged access.

From the tool's definition Tool name: CreateTokenWithIAM — description is empty/uninformative

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

POLICY

How to control CreateTokenWithIAM

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 CreateTokenWithIAM:

policy.json

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

CreateTokenWithIAM gets a rate cap, and 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.

SET A RULE FOR THIS TOOL →

Free to start. No card required.

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.
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 →
PolicyLayer vs alternatives → How deterministic, per-call MCP policy compares with gateways, identity layers, and authorisation platforms.

FAQ

Questions about CreateTokenWithIAM

What does the CreateTokenWithIAM tool do? +

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

How do I enforce a policy on CreateTokenWithIAM? +

Register the Amazon EKS MCP Server MCP server in PolicyLayer and add a rule for CreateTokenWithIAM: 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 CreateTokenWithIAM? +

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

Can I rate-limit CreateTokenWithIAM? +

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

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

CreateTokenWithIAM 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.

CHECK YOUR STACK →