获取当前设备的 USB 设备信息
AI agents call getUsbInfo to retrieve information from Current operating environment without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a read-only operation that retrieves information about USB devices connected to the system. It has no side effects, does not modify data, execute commands, delete anything, or involve financial transactions. The tool simply enumerates or lists USB device details, consistent with sibling tools like getBatteryInfo, getCpuInfo, and getDiskUsage which are all informational queries about the operating environment.
From the tool's definition Tool name 'getUsbInfo' and description '获取当前设备的 USB 设备信息' (Get USB device information of the current device) indicate a retrieval operation that queries system information without modifying or executing anything.
Attacks that exploit this kind of access
获取当前设备的 USB 设备信息. It is categorised as a Read tool in the Current operating environment MCP Server, which means it retrieves data without modifying state.
Register the Current operating environment MCP server in PolicyLayer and add a rule for getUsbInfo: 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 Current operating environment. Nothing to install.
getUsbInfo 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 getUsbInfo 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 getUsbInfo. 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.
getUsbInfo is provided by the Current operating environment MCP server (jackxuyi/env-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
getUsbInfo is one line of Current operating environment's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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