Perform detailed cost analysis with trends and insights for Google Cloud billing data
AI agents call gcp-billing-analyse-costs to retrieve information from GCP Billing and Monitoring MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and analyzes billing data to provide cost insights and trends. It does not modify, delete, or execute operations on GCP resources. However, severity is elevated to medium rather than low because billing data is sensitive information that could expose cost patterns, financial planning details, or potentially identify high-value resources/projects if misused by an untrusted agent.
From the tool's definition Tool description: 'Perform detailed cost analysis with trends and insights for Google Cloud billing data' — uses 'analyse' and 'analysis', indicating data retrieval and querying. No mutating operations (create, update, delete) are mentioned.
Attacks that exploit this kind of access
Perform detailed cost analysis with trends and insights for Google Cloud billing data. It is categorised as a Read tool in the GCP Billing and Monitoring MCP Server MCP Server, which means it retrieves data without modifying state.
Register the GCP Billing and Monitoring MCP Server MCP server in PolicyLayer and add a rule for gcp-billing-analyse-costs: 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 GCP Billing and Monitoring MCP Server. Nothing to install.
gcp-billing-analyse-costs is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the gcp-billing-analyse-costs 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.
Set action: deny in the PolicyLayer policy for gcp-billing-analyse-costs. 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.
gcp-billing-analyse-costs is provided by the GCP Billing and Monitoring MCP Server MCP server (radiumgu/gcp-billing-and-monitoring-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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