This record as markdown: /tools/easehee-rhino-mcp/rhino-list-objects.md
What rhino_list_objects does on Rhino
AI agents call rhino_list_objects to retrieve information from Rhino without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why rhino_list_objects is rated Low
Based on the tool name pattern (list_*), this tool is a query/retrieval operation that enumerates or fetches Rhino objects. No side effects are indicated. Despite the description being empty, the naming convention strongly suggests a read-only operation used for discovery or inspection of geometry objects in Rhino 8. Confidence is slightly reduced due to missing documentation, but the naming convention is clear.
From the tool's definition Tool name is 'rhino_list_objects', following the pattern of standard read operations like 'list' which retrieve and return collections of data without modification.
Attacks that exploit this kind of access
The rule that runs rhino_list_objects safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Rhino, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For rhino_list_objects, this is the rule to start with:
rhino_list_objects is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Rhino, apply this rule, and every rhino_list_objects call is checked against it from then on.
Questions about rhino_list_objects
rhino_list_objects is a read tool on the Rhino MCP server. It is categorised as a Read tool in the Rhino MCP Server, which means it retrieves data without modifying state.
Register the Rhino MCP server in PolicyLayer and add a rule for rhino_list_objects: 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 Rhino. Nothing to install.
rhino_list_objects 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 rhino_list_objects 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 rhino_list_objects. 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.
rhino_list_objects is provided by the Rhino MCP server (easehee/rhino-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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