create_service_account · Kubernetes MCP Server MCP

WHAT IT DOES

What create_service_account does on Kubernetes MCP Server

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

WHY IT NEEDS A POLICY

Why create_service_account needs a policy

This tool creates a new service account, which is a write operation that modifies cluster state by adding a new resource. While reversible (can be deleted), service accounts are security-sensitive credentials that could be exploited if created with malicious intent by an AI agent—e.g., creating accounts for lateral movement or privilege escalation.

From the tool's definition Tool name is 'create_service_account' and description states 'Create a new service account', indicating reversible creation of a Kubernetes identity resource.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_service_account Rate-limited

create_service_account 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": {
    "create_service_account": {
      "limits": [
        {
          "counter": "create_service_account_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 Kubernetes MCP Server, so you can run agents against it safely.

FAQ

Questions about create_service_account

What does the create_service_account tool do? +

Create a new service account. It is categorised as a Write tool in the Kubernetes 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 create_service_account? +

Register the Kubernetes MCP Server MCP server in PolicyLayer and add a rule for create_service_account: 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 Kubernetes MCP Server. Nothing to install.

What risk level is create_service_account? +

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

Can I rate-limit create_service_account? +

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

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

create_service_account is provided by the Kubernetes MCP Server MCP server (surukanti/k8s-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.