AI agents call get_actual_joint_voltage to retrieve information from Nonead Universal-Robots 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 telemetry data (joint voltage readings) from a Universal Robots cobot. It is a read-only query with no side effects. Even if an LLM agent misuses it, the worst outcome is obtaining information about robot state, which poses minimal risk. Severity is low due to limited blast radius.
From the tool's definition Tool name is 'get_actual_joint_voltage' and description states it retrieves voltage data ('获取...电压') from robot joints. No modification, execution, or deletion occurs—it only queries and returns current state information.
Documented attack patterns abuse exactly the kind of access get_actual_joint_voltage gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Nonead Universal-Robots MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_actual_joint_voltage:
{
"version": "1",
"default": "deny",
"tools": {
"get_actual_joint_voltage": {}
}
}get_actual_joint_voltage is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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获取指定IP机器人的各关节电压（伏特）. It is categorised as a Read tool in the Nonead Universal-Robots MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Nonead Universal-Robots MCP Server MCP server in PolicyLayer and add a rule for get_actual_joint_voltage: 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 Nonead Universal-Robots MCP Server. Nothing to install.
get_actual_joint_voltage 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_actual_joint_voltage 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_actual_joint_voltage. 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_actual_joint_voltage is provided by the Nonead Universal-Robots MCP Server MCP server (nonead/nonead-universal-robots-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Nonead Universal-Robots MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
39 Nonead Universal-Robots MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.