compute_wait_for_operation · Google Cloud MCP: Risk & Policy

WHAT IT DOES

What compute_wait_for_operation does on Google Cloud

AI agents invoke compute_wait_for_operation to trigger actions in Google Cloud. 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 compute_wait_for_operation needs a policy

This tool likely polls or waits for completion of a cloud operation (instance creation, deletion, or other compute changes). While waiting itself is not destructive, it enables downstream effects of other operations and triggers external cloud resource changes. The empty description limits confidence, but the sibling tools indicate this operates in a high-privilege Compute Engine context.

From the tool's definition Tool name 'compute_wait_for_operation' suggests blocking/waiting on a Compute Engine operation. Context shows it is part of a Compute Engine management suite (alongside compute_create_instance, compute_delete_instance), indicating it interacts with external…

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

compute_wait_for_operation Rate-limited

compute_wait_for_operation 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": {
    "compute_wait_for_operation": {
      "limits": [
        {
          "counter": "compute_wait_for_operation_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 Google Cloud, so you can run agents against it safely.

FAQ

Questions about compute_wait_for_operation

What does the compute_wait_for_operation tool do? +

compute_wait_for_operation. It is categorised as a Execute tool in the Google Cloud MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on compute_wait_for_operation? +

Register the Google Cloud MCP server in PolicyLayer and add a rule for compute_wait_for_operation: 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. Nothing to install.

What risk level is compute_wait_for_operation? +

compute_wait_for_operation is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit compute_wait_for_operation? +

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

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

compute_wait_for_operation is provided by the Google Cloud MCP server (lockon-n/google-cloud-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.