gcp-billing-cost-recommendations

THE RISK

Low Risk

Why gcp-billing-cost-recommendations needs a policy

This tool reads and analyzes existing billing/cost data to produce recommendations and insights. While it accesses financial information (billing data), it does not execute transactions, modify records, or commit financial obligations. The 'potential savings' language refers to analysis output, not actual cost changes.

From the tool's definition Tool name and description indicate analysis and reporting: 'Generate cost optimisation recommendations with potential savings'.

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

POLICY

How to control gcp-billing-cost-recommendations

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-cost-recommendations:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "gcp-billing-cost-recommendations": {}
  }
}

gcp-billing-cost-recommendations 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

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
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FAQ

Questions about gcp-billing-cost-recommendations

What does the gcp-billing-cost-recommendations tool do? +

Generate cost optimisation recommendations with potential savings for Google Cloud billing. 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-cost-recommendations? +

Register the Google Cloud MCP Server MCP server in PolicyLayer and add a rule for gcp-billing-cost-recommendations: 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-cost-recommendations? +

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

Can I rate-limit gcp-billing-cost-recommendations? +

Yes. Add a rate_limit block to the gcp-billing-cost-recommendations 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-cost-recommendations completely? +

Set action: deny in the PolicyLayer policy for gcp-billing-cost-recommendations. 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-cost-recommendations? +

gcp-billing-cost-recommendations 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 →