Securely query WMI (Windows Management Instrumentation) with comprehensive security controls. Only allows read-only operations on approved WMI classes for system information gathering.
AI agents call wmi_query to retrieve information from Windows Diagnostics MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Despite WMI's potential for system access, the explicit security controls ('comprehensive security controls', 'approved WMI classes', 'read-only operations') and the diagnostic server context (accessing event logs, crash info, system uptime) confirm this tool is designed for information retrieval only. No data modification, execution of arbitrary code, or destructive operations are permitted.
From the tool's definition Tool description states 'Only allows read-only operations on approved WMI classes for system information gathering.' The term 'read-only' and 'approved WMI classes' indicate restricted query scope without data modification or deletion capabilities.
Attacks that exploit this kind of access
Securely query WMI (Windows Management Instrumentation) with comprehensive security controls. Only allows read-only operations on approved WMI classes for system information gathering. It is categorised as a Read tool in the Windows Diagnostics MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Windows Diagnostics MCP Server MCP server in PolicyLayer and add a rule for wmi_query: 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 Windows Diagnostics MCP Server. Nothing to install.
wmi_query 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 wmi_query 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 wmi_query. 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.
wmi_query is provided by the Windows Diagnostics MCP Server MCP server (jackalterman/windows-diagnostic-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.
Teams ship this data inside their own products. See what a licence covers →