List all virtual hosts with message counts.
AI agents call rmq_vhost_list to retrieve information from RedisNexus without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and displays information about RabbitMQ virtual hosts and their message counts. It performs a read-only query with no capability to modify, delete, or execute operations. The verb 'list' combined with the informational nature of the output (counts only) confirms this is a Read category tool.
From the tool's definition Tool name 'rmq_vhost_list' and description 'List all virtual hosts with message counts' indicate a query/retrieval operation with no side effects.
Attacks that exploit this kind of access
List all virtual hosts with message counts. It is categorised as a Read tool in the RedisNexus MCP Server, which means it retrieves data without modifying state.
Register the RedisNexus MCP server in PolicyLayer and add a rule for rmq_vhost_list: 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.
rmq_vhost_list is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the rmq_vhost_list 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.
Set action: deny in the PolicyLayer policy for rmq_vhost_list. 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.
rmq_vhost_list 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.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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