Monitors hardware health including temperatures, fan speeds, drive SMART status, memory health, disk usage, and large files/folders scanning.
AI agents call hardware_monitor 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.
This tool retrieves diagnostic information about hardware status without modifying system state, executing code, or causing destructive operations. The monitoring and scanning functions are passive data queries. Severity is low because misuse would only expose hardware telemetry information rather than enable system modification or damage.
From the tool's definition Tool monitors and reports hardware health metrics: 'temperatures, fan speeds, drive SMART status, memory health, disk usage, and large files/folders scanning' — all read-only data collection and analysis operations.
Attacks that exploit this kind of access
Monitors hardware health including temperatures, fan speeds, drive SMART status, memory health, disk usage, and large files/folders scanning. 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 hardware_monitor: 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.
hardware_monitor 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 hardware_monitor 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 hardware_monitor. 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.
hardware_monitor 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 →