gcp-billing-list-skus

THE RISK

Low Risk

Why gcp-billing-list-skus needs a policy

This tool retrieves pricing and SKU information from Google Cloud's billing service without creating, modifying, deleting, or executing any operations. It has no side effects and poses minimal risk even if misused by an AI agent, as it only exposes publicly or account-level pricing metadata. Classified as Read with low severity.

From the tool's definition Tool name 'list-skus' and description 'List all SKUs...and pricing information' indicates data retrieval with no modification or execution capability. The action is purely informational—querying and presenting existing SKU and pricing data.

Documented attack patterns abuse exactly the kind of access gcp-billing-list-skus gives an agent:

POLICY

How to control gcp-billing-list-skus

PolicyLayer is an MCP gateway — it sits between your AI agents and Google Cloud MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for gcp-billing-list-skus:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "gcp-billing-list-skus": {}
  }
}

gcp-billing-list-skus 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 Google Cloud 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

Related tools and policies

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Go deeper

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 →

FAQ

Questions about gcp-billing-list-skus

What does the gcp-billing-list-skus tool do? +

List all SKUs (Stock Keeping Units) and pricing information for a Google Cloud service. It is categorised as a Read tool in the Google Cloud MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on gcp-billing-list-skus? +

Register the Google Cloud MCP Server MCP server in PolicyLayer and add a rule for gcp-billing-list-skus: 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 Google Cloud MCP Server. Nothing to install.

What risk level is gcp-billing-list-skus? +

gcp-billing-list-skus is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit gcp-billing-list-skus? +

Yes. Add a rate_limit block to the gcp-billing-list-skus 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 gcp-billing-list-skus completely? +

Set action: deny in the PolicyLayer policy for gcp-billing-list-skus. 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 gcp-billing-list-skus? +

gcp-billing-list-skus is provided by the Google Cloud MCP Server MCP server (krzko/google-cloud-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Google Cloud MCP Server tool call.

Start from Google Cloud 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 →