create_regular_polygon
A write tool on the FreeCAD Robust MCP server.
This record as markdown: /tools/spkane-freecad-addon-robust-mcp-server/create-regular-polygon.md
What create_regular_polygon does on FreeCAD Robust MCP Server
AI agents use create_regular_polygon to create or update resources in FreeCAD Robust MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your FreeCAD Robust MCP Server environment.
Why create_regular_polygon is rated Medium
This tool creates geometric shapes within a FreeCAD sketch, which modifies the CAD model state reversibly. It is a Write operation (creates new sketch elements) rather than Read (no data retrieval), Execute (no arbitrary code/external operations triggered), or Destructive (sketch geometry can be deleted/undone).
From the tool's definition Tool name 'create_regular_polygon' and sibling tools like 'add_sketch_polygon', 'add_sketch_line', 'add_sketch_circle' all perform sketch geometry creation/modification operations in FreeCAD.
Attacks that exploit this kind of access
The rule that runs create_regular_polygon safely
PolicyLayer is an MCP gateway: it sits between your AI agents and FreeCAD Robust MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For create_regular_polygon, this is the rule to start with:
create_regular_polygon 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 FreeCAD Robust MCP Server, apply this rule, and every create_regular_polygon call is checked against it from then on.
Questions about create_regular_polygon
create_regular_polygon is a write tool on the FreeCAD Robust MCP Server MCP server. It is categorised as a Write tool in the FreeCAD Robust MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the FreeCAD Robust MCP Server MCP server in PolicyLayer and add a rule for create_regular_polygon: 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 FreeCAD Robust MCP Server. Nothing to install.
create_regular_polygon 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 create_regular_polygon 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 create_regular_polygon. 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.
create_regular_polygon is provided by the FreeCAD Robust MCP Server MCP server (spkane/freecad-addon-robust-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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