ros_publish · ROS1 Noetic MCP Server MCP: Risk & Policy

WHAT IT DOES

What ros_publish does on ROS1 Noetic MCP Server

AI agents use ros_publish to create or update resources in ROS1 Noetic MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your ROS1 Noetic MCP Server environment.

WHY IT NEEDS A POLICY

Why ros_publish needs a policy

In ROS1, publishing to a topic sends messages that can trigger robot actuators, change robot state, or affect physical systems. While this is technically a Write operation (sending data), the blast radius is high because publishing to the wrong topic (e.g., /cmd_vel, /joint_commands) on a physical robot could cause unintended physical movement or damage. The description is empty, which lowers confidence.

From the tool's definition Tool name 'ros_publish' suggests publishing messages to ROS topics; description is empty providing no additional context.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

ros_publish Rate-limited

ros_publish stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "ros_publish": {
      "limits": [
        {
          "counter": "ros_publish_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches ROS1 Noetic MCP Server, so you can run agents against it safely.

FAQ

Questions about ros_publish

What does the ros_publish tool do? +

ros_publish. It is categorised as a Write tool in the ROS1 Noetic MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on ros_publish? +

Register the ROS1 Noetic MCP Server MCP server in PolicyLayer and add a rule for ros_publish: 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 ROS1 Noetic MCP Server. Nothing to install.

What risk level is ros_publish? +

ros_publish is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit ros_publish? +

Yes. Add a rate_limit block to the ros_publish 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 ros_publish completely? +

Set action: deny in the PolicyLayer policy for ros_publish. 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 ros_publish? +

ros_publish is provided by the ROS1 Noetic MCP Server MCP server (lopisan/ros-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.