gcnv_host_group_update

WHAT IT DOES

What gcnv_host_group_update does on Google Cloud NetApp Volumes MCP Server

AI agents use gcnv_host_group_update to create or update resources in Google Cloud NetApp Volumes MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Google Cloud NetApp Volumes MCP Server environment.

WHY IT NEEDS A POLICY

Why gcnv_host_group_update needs a policy

This tool creates or modifies data in a reversible manner by updating host group configurations in Google Cloud NetApp Volumes. It does not delete resources (Destructive), execute arbitrary code (Execute), involve financial transactions (Financial), or merely query data (Read). Update operations that modify infrastructure configurations are classified as Write.

From the tool's definition Tool name 'gcnv_host_group_update' and description 'Updates a host group (partial update using updateMask)' indicate modification of existing resource configuration. The updateMask parameter allows selective field updates, which is reversible.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

gcnv_host_group_update Rate-limited

gcnv_host_group_update stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "gcnv_host_group_update": {
      "limits": [
        {
          "counter": "gcnv_host_group_update_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Google Cloud NetApp Volumes MCP Server, so you can run agents against it safely.

FAQ

Questions about gcnv_host_group_update

What does the gcnv_host_group_update tool do? +

Updates a host group (partial update using updateMask). It is categorised as a Write tool in the Google Cloud NetApp Volumes MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on gcnv_host_group_update? +

Register the Google Cloud NetApp Volumes MCP Server MCP server in PolicyLayer and add a rule for gcnv_host_group_update: 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 NetApp Volumes MCP Server. Nothing to install.

What risk level is gcnv_host_group_update? +

gcnv_host_group_update is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit gcnv_host_group_update? +

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

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

gcnv_host_group_update is provided by the Google Cloud NetApp Volumes MCP Server MCP server (netapp/gcnv-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.