This record as markdown: /tools/easehee-rhino-mcp/rhino-export-iges.md
What rhino_export_iges does on Rhino
AI agents use rhino_export_iges to create or update resources in Rhino, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Rhino environment.
Why rhino_export_iges is rated Medium
This tool creates and writes data (IGES format files) from Rhino geometry. It is reversible (exported files can be deleted or overwritten) and has no destructive effect on existing data. The severity is medium because while it generates output files, the scope is limited to a single export operation and does not affect the underlying Rhino model or financial systems.
From the tool's definition Tool name 'rhino_export_iges' and description 'Export to IGES' indicate file creation/export of CAD geometry data. IGES is a standard CAD exchange format; exporting creates new files.
Attacks that exploit this kind of access
The rule that runs rhino_export_iges 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_export_iges, this is the rule to start with:
rhino_export_iges 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.
The button opens the PolicyLayer dashboard: create your workspace, connect Rhino, apply this rule, and every rhino_export_iges call is checked against it from then on.
Questions about rhino_export_iges
Export to IGES (bridge required). It is categorised as a Write tool in the Rhino MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Rhino MCP server in PolicyLayer and add a rule for rhino_export_iges: 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_export_iges is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the rhino_export_iges 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_export_iges. 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_export_iges 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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