rmq_vhost_manage · RedisNexus MCP: Risk & Policy

WHAT IT DOES

What rmq_vhost_manage does on RedisNexus

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

WHY IT NEEDS A POLICY

Why rmq_vhost_manage needs a policy

Virtual host management is primarily a write operation that can create or modify multi-tenant isolation boundaries. While the description doesn't explicitly state deletion, 'manage' in RabbitMQ contexts usually includes lifecycle operations.

From the tool's definition Tool name 'rmq_vhost_manage' and description 'Manage RabbitMQ virtual hosts' indicates creation, modification, or deletion of virtual host configurations.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

rmq_vhost_manage Rate-limited

rmq_vhost_manage 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": {
    "rmq_vhost_manage": {
      "limits": [
        {
          "counter": "rmq_vhost_manage_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

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

FAQ

Questions about rmq_vhost_manage

What does the rmq_vhost_manage tool do? +

Manage RabbitMQ virtual hosts for multi-tenant isolation. It is categorised as a Write tool in the RedisNexus MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on rmq_vhost_manage? +

Register the RedisNexus MCP server in PolicyLayer and add a rule for rmq_vhost_manage: 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 RedisNexus. Nothing to install.

What risk level is rmq_vhost_manage? +

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

Can I rate-limit rmq_vhost_manage? +

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

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

rmq_vhost_manage is provided by the RedisNexus MCP server (rajkumar-madhu/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.