is_database_connected

THE RISK

Low Risk

Why is_database_connected needs a policy

This tool performs a simple status check to verify whether a database connection exists. It retrieves information about connection state with no side effects, no code execution, no data modification, and no destructive operations. This is a read-only query operation with minimal blast radius if misused by an AI agent.

From the tool's definition Tool name is 'is_database_connected' and description states 'Check if a connection has been established' — this is a query operation that checks status without modifying, creating, executing, or deleting anything.

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

POLICY

How to control is_database_connected

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 is_database_connected:

policy.json

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

is_database_connected 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.

CAP 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.
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 is_database_connected

What does the is_database_connected tool do? +

Check if a connection has been established. 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 is_database_connected? +

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

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

Can I rate-limit is_database_connected? +

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

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

is_database_connected 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 →