arvan_create_volume

Create a block-storage volume.

SERVERArvanCloud MCP Server SOURCEdwin-gharibi/arvancloud-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/dwin-gharibi-arvancloud-mcp/arvan-create-volume.md

WHAT IT DOES

What arvan_create_volume does on ArvanCloud MCP Server

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

RISK

Why arvan_create_volume is rated Medium

This tool creates a new block-storage volume, which is a reversible Write operation. While it provisions infrastructure and consumes resources (incurring potential costs), it does not execute arbitrary code, delete data, or directly move money. The blast radius is medium because misconfiguration could create unnecessary volumes and consume cloud credits, but the action is reversible through deletion.

From the tool's definition Tool name 'arvan_create_volume' and description 'Create a block-storage volume' indicate a create operation that modifies cloud infrastructure state by adding a new storage resource.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs arvan_create_volume safely

PolicyLayer is an MCP gateway: it sits between your AI agents and ArvanCloud MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For arvan_create_volume, this is the rule to start with:

arvan_create_volume Rate-limited

arvan_create_volume 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": {
    "arvan_create_volume": {
      "limits": [
        {
          "counter": "arvan_create_volume_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect ArvanCloud MCP Server, apply this rule, and every arvan_create_volume call is checked against it from then on.

FAQ

Questions about arvan_create_volume

What does the arvan_create_volume tool do? +

Create a block-storage volume. It is categorised as a Write tool in the ArvanCloud 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 arvan_create_volume? +

Register the ArvanCloud MCP Server MCP server in PolicyLayer and add a rule for arvan_create_volume: 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 ArvanCloud MCP Server. Nothing to install.

What risk level is arvan_create_volume? +

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

Can I rate-limit arvan_create_volume? +

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

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

arvan_create_volume is provided by the ArvanCloud MCP Server MCP server (dwin-gharibi/arvancloud-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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