move_robot_joints · Universal Robot MCP Server MCP

WHAT IT DOES

What move_robot_joints does on Universal Robot MCP Server

AI agents invoke move_robot_joints to trigger actions in Universal Robot 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.

WHY IT NEEDS A POLICY

Why move_robot_joints needs a policy

This tool executes real-time motion commands on a physical Universal Robot arm. Misuse or incorrect parameters could cause the robot to move unexpectedly, potentially causing physical injury to nearby personnel, damaging the robot, or destroying workpieces. Even with simulation mode available, the tool is designed to control physical hardware.

From the tool's definition 'Move robot joints' — directly commands physical robot hardware to move its joints, triggering real-world mechanical motion

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

move_robot_joints Rate-limited

move_robot_joints 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "move_robot_joints": {
      "limits": [
        {
          "counter": "move_robot_joints_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Universal Robot MCP Server, so you can run agents against it safely.

FAQ

Questions about move_robot_joints

What does the move_robot_joints tool do? +

Move robot joints. It is categorised as a Execute tool in the Universal Robot MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on move_robot_joints? +

Register the Universal Robot MCP Server MCP server in PolicyLayer and add a rule for move_robot_joints: 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 Universal Robot MCP Server. Nothing to install.

What risk level is move_robot_joints? +

move_robot_joints is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit move_robot_joints? +

Yes. Add a rate_limit block to the move_robot_joints 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.

How do I block move_robot_joints completely? +

Set action: deny in the PolicyLayer policy for move_robot_joints. 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.

What MCP server provides move_robot_joints? +

move_robot_joints is provided by the Universal Robot MCP Server MCP server (roversx/universal-robot-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.