List policy-engine rules attached to the org (time-of-day, require_mfa, max_concurrent_sessions, approval_required, etc.).
AI agents call list_policies to retrieve information from KVMFleet 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 queries policy configuration data without creating, modifying, deleting, or executing any actions. It has no side effects and poses minimal risk as it only exposes policy rule visibility to the AI agent.
From the tool's definition Tool name 'list_policies' and description explicitly state it lists policy-engine rules with no modification capability. The server is documented as 'Read-only MCP server that allows AI assistants to query and monitor'.
Attacks that exploit this kind of access
List policy-engine rules attached to the org (time-of-day, require_mfa, max_concurrent_sessions, approval_required, etc.). It is categorised as a Read tool in the KVMFleet MCP Server MCP Server, which means it retrieves data without modifying state.
Register the KVMFleet MCP Server MCP server in PolicyLayer and add a rule for list_policies: 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 KVMFleet MCP Server. Nothing to install.
list_policies 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_policies 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_policies. 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_policies is provided by the KVMFleet MCP Server MCP server (kvmfleet/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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