gh_bake_to_rhino
Bake the output of one or more components into the active Rhino document.
This record as markdown: /tools/easehee-rhino-mcp/gh-bake-to-rhino.md
What gh_bake_to_rhino does on Rhino
AI agents use gh_bake_to_rhino 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 gh_bake_to_rhino is rated Medium
Baking is a write operation that creates and adds geometry objects to the Rhino document. While reversible (via undo), it modifies the document state and creates new entities. The operation does not delete or destroy existing data (not Destructive), execute arbitrary code (Execute), or move money (Financial).
From the tool's definition "Bake the output of one or more components into the active Rhino document" — baking is a Grasshopper operation that converts computational geometry into permanent Rhino objects. This creates and persists new geometry data in the document.
Attacks that exploit this kind of access
The rule that runs gh_bake_to_rhino 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 gh_bake_to_rhino, this is the rule to start with:
gh_bake_to_rhino 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 gh_bake_to_rhino call is checked against it from then on.
Questions about gh_bake_to_rhino
Bake the output of one or more components into the active Rhino document. 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 gh_bake_to_rhino: 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.
gh_bake_to_rhino 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 gh_bake_to_rhino 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 gh_bake_to_rhino. 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.
gh_bake_to_rhino 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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