list_buckets

List storage buckets

SERVERCloudStack MCP Server SOURCEmozg31337/cloudstack-mcp-server

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/mozg31337-cloudstack-mcp-server/list-buckets.md

WHAT IT DOES

What list_buckets does on CloudStack MCP Server

AI agents call list_buckets to retrieve information from CloudStack MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why list_buckets is rated Low

This tool retrieves and queries existing storage bucket information without creating, modifying, deleting, or executing any operations. It has no side effects and represents minimal security risk even if misused by an AI agent, as it only exposes metadata about storage resources without modifying them.

From the tool's definition Tool name is 'list_buckets' and description states 'List storage buckets', which is a retrieval operation with no side effects. The verb 'list' is a canonical Read operation.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs list_buckets safely

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

list_buckets Allowed

list_buckets is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_buckets": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about list_buckets

What does the list_buckets tool do? +

List storage buckets. It is categorised as a Read tool in the CloudStack MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_buckets? +

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

What risk level is list_buckets? +

list_buckets is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit list_buckets? +

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

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

list_buckets is provided by the CloudStack MCP Server MCP server (mozg31337/cloudstack-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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