delete_sketch_constraint
A destructive tool on the FreeCAD Robust MCP server.
This record as markdown: /tools/spkane-freecad-addon-robust-mcp-server/delete-sketch-constraint.md
What delete_sketch_constraint does on FreeCAD Robust MCP Server
AI agents call delete_sketch_constraint to permanently remove resources in FreeCAD Robust MCP Server, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Why delete_sketch_constraint is rated Critical
Deletion of sketch constraints in FreeCAD is an irreversible operation that modifies the underlying model geometry and structure. While the blast radius is limited to sketch constraints within a document (not system-wide), the action cannot be undone programmatically through the tool itself and represents permanent removal of design data.
From the tool's definition Tool name 'delete_sketch_constraint' explicitly indicates deletion of sketch constraint objects. The verb 'delete' is characteristic of irreversible data removal.
Attacks that exploit this kind of access
The rule that runs delete_sketch_constraint 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 delete_sketch_constraint, this is the rule to start with:
delete_sketch_constraint is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.
The button opens the PolicyLayer dashboard: create your workspace, connect FreeCAD Robust MCP Server, apply this rule, and every delete_sketch_constraint call is checked against it from then on.
Questions about delete_sketch_constraint
delete_sketch_constraint is a destructive tool on the FreeCAD Robust MCP Server MCP server. It is categorised as a Destructive tool in the FreeCAD Robust MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the FreeCAD Robust MCP Server MCP server in PolicyLayer and add a rule for delete_sketch_constraint: 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.
delete_sketch_constraint is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the delete_sketch_constraint 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 delete_sketch_constraint. 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.
delete_sketch_constraint 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.
More on FreeCAD Robust MCP Server, and thousands of servers like it.
Across the catalogue