获取所有 ROS 话题及其类型
AI agents call get_topics to retrieve information from ROS 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 metadata about available ROS topics and their message types. It is purely informational—it does not modify, execute, or control robot behavior. While understanding the ROS topic structure could inform subsequent misuse of other tools, get_topics itself performs only read-only discovery.
From the tool's definition Tool name 'get_topics' and description '获取所有 ROS 话题及其类型' (retrieve all ROS topics and their types) indicate a query/listing operation with no side effects.
Attacks that exploit this kind of access
获取所有 ROS 话题及其类型. It is categorised as a Read tool in the ROS MCP Server MCP Server, which means it retrieves data without modifying state.
Register the ROS MCP Server MCP server in PolicyLayer and add a rule for get_topics: 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 ROS MCP Server. Nothing to install.
get_topics 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_topics 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_topics. 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_topics is provided by the ROS MCP Server MCP server (moneypiaorui/ros-mcp-server-minipi). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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