list_consumer_groups
AI agents call list_consumer_groups to retrieve information from Kafka MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves metadata about consumer groups in a Kafka cluster. Listing consumer groups is a read-only operation with no ability to modify, delete, or execute actions. The blast radius of misuse is minimal—an agent can only discover what consumer groups exist, which is informational.
From the tool's definition Tool name 'list_consumer_groups' combined with its placement among other Kafka inspection tools (cluster_info, list_topics, list_kafka_users, health) indicates a query/listing operation.
Attacks that exploit this kind of access
list_consumer_groups. It is categorised as a Read tool in the Kafka MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Kafka MCP Server MCP server in PolicyLayer and add a rule for list_consumer_groups: 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 Kafka MCP Server. Nothing to install.
list_consumer_groups 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 list_consumer_groups 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 list_consumer_groups. 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.
list_consumer_groups is provided by the Kafka MCP Server MCP server (jilanisayyad/kafka-mcp-server). 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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