Return recent health metrics (CPU temp, uptime) as a time-series for one device over the last
AI agents call get_device_metrics 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 queries and retrieves historical health metrics from a device—a passive read operation with no side effects. The read-only nature of the server and the descriptive language ('return', 'metrics') confirm it is a simple data retrieval function. Risk is low because even if an AI agent misuses it, the only impact is exposure of non-sensitive operational metrics (temperature, uptime).
From the tool's definition Tool name 'get_device_metrics' and description 'Return recent health metrics (CPU temp, uptime) as a time-series for one device' indicate data retrieval only. Server description explicitly states 'Read-only MCP server'.
Attacks that exploit this kind of access
Return recent health metrics (CPU temp, uptime) as a time-series for one device over the last. 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 get_device_metrics: 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.
get_device_metrics 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 get_device_metrics 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 get_device_metrics. 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.
get_device_metrics 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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