gcp-spanner-query-natural-language

WHAT IT DOES

What gcp-spanner-query-natural-language does on GCP Billing and Monitoring MCP Server

AI agents invoke gcp-spanner-query-natural-language to trigger actions in GCP Billing and Monitoring MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why gcp-spanner-query-natural-language needs a policy

The tool name implies executing queries against Google Cloud Spanner via natural language. Natural language query tools can translate to arbitrary SQL, which may include read, write, or destructive operations. Given the ambiguity, Execute is the most appropriate severe category. Confidence is reduced due to the empty description.

From the tool's definition Tool name contains 'query' and 'natural-language', suggesting it executes natural language queries against GCP Spanner; description is empty and uninformative.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

gcp-spanner-query-natural-language Rate-limited

gcp-spanner-query-natural-language stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "gcp-spanner-query-natural-language": {
      "limits": [
        {
          "counter": "gcp-spanner-query-natural-language_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches GCP Billing and Monitoring MCP Server, so you can run agents against it safely.

FAQ

Questions about gcp-spanner-query-natural-language

What does the gcp-spanner-query-natural-language tool do? +

gcp-spanner-query-natural-language. It is categorised as a Execute tool in the GCP Billing and Monitoring MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on gcp-spanner-query-natural-language? +

Register the GCP Billing and Monitoring MCP Server MCP server in PolicyLayer and add a rule for gcp-spanner-query-natural-language: 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.

What risk level is gcp-spanner-query-natural-language? +

gcp-spanner-query-natural-language is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit gcp-spanner-query-natural-language? +

Yes. Add a rate_limit block to the gcp-spanner-query-natural-language 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-spanner-query-natural-language completely? +

Set action: deny in the PolicyLayer policy for gcp-spanner-query-natural-language. 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-spanner-query-natural-language? +

gcp-spanner-query-natural-language 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.