List all available memory zones with metadata. When a reason is provided, zones will be filtered and prioritized based on relevance to your needs.
AI agents call list_zones to retrieve information from Elastic Brain ZH without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only retrieves and queries existing zone metadata without side effects. It is a read-only operation that returns information about the system's memory zones. The optional filtering/prioritization based on relevance does not change the fundamental read-only nature of the operation. This presents minimal security risk.
From the tool's definition Tool name is 'list_zones' and description states it 'List[s] all available memory zones with metadata' with optional filtering. No modification, deletion, execution, or financial operations are performed.
Attacks that exploit this kind of access
List all available memory zones with metadata. When a reason is provided, zones will be filtered and prioritized based on relevance to your needs. It is categorised as a Read tool in the Elastic Brain ZH MCP Server, which means it retrieves data without modifying state.
Register the Elastic Brain ZH MCP server in PolicyLayer and add a rule for list_zones: 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 Elastic Brain ZH. Nothing to install.
list_zones 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_zones 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_zones. 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_zones is provided by the Elastic Brain ZH MCP server (tocharianou/elastic-brain-zh). 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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