命令指定IP的机器人，给定圆心位置和半径，在水平或竖直方向画一个圆
AI agents invoke draw_circle to trigger actions in Nonead Universal-Robots MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.
This tool sends motion commands to a physical Universal Robots cobot, causing it to execute real-world movement. Physical robot motion carries high risk — if misused, the robot arm could collide with objects, equipment, or people. It is an Execute-category action because it triggers external physical operations on industrial hardware.
From the tool's definition 命令指定IP的机器人，给定圆心位置和半径，在水平或竖直方向画一个圆 (Commands a robot at a specified IP to draw a circle given center position and radius in horizontal or vertical direction)
Documented attack patterns abuse exactly the kind of access draw_circle 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 draw_circle:
{
"version": "1",
"default": "deny",
"tools": {
"draw_circle": {
"limits": [
{
"counter": "draw_circle_rate",
"window": "minute",
"max": 10,
"scope": "grant"
}
]
}
}
}draw_circle stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
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命令指定IP的机器人，给定圆心位置和半径，在水平或竖直方向画一个圆. It is categorised as a Execute tool in the Nonead Universal-Robots MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Nonead Universal-Robots MCP Server MCP server in PolicyLayer and add a rule for draw_circle: 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.
draw_circle is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the draw_circle 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 draw_circle. 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.
draw_circle 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.