List all tenants
AI agents call list_tenants to retrieve information from UseGrant 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 and enumerates tenant information without modifying, executing code, or deleting data. It is a straightforward read operation. The low severity reflects minimal risk even if accessed by an untrusted agent, as it only exposes organizational structure or configuration metadata without enabling further action without additional tools.
From the tool's definition Tool name 'list_tenants' and description 'List all tenants' indicate a query/retrieval operation with no side effects.
Attacks that exploit this kind of access
List all tenants. It is categorised as a Read tool in the UseGrant MCP Server MCP Server, which means it retrieves data without modifying state.
Register the UseGrant MCP Server MCP server in PolicyLayer and add a rule for list_tenants: 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 UseGrant MCP Server. Nothing to install.
list_tenants 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_tenants 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_tenants. 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_tenants is provided by the UseGrant MCP Server MCP server (usegranthq/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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