entity_create_rectangle
Create a closed rectangular polyline between two corner points.
This record as markdown: /tools/u-c4n-autocad-mcp/entity-create-rectangle.md
What entity_create_rectangle does on AutoCAD MCP Pro
AI agents use entity_create_rectangle to create or update resources in AutoCAD MCP Pro, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your AutoCAD MCP Pro environment.
Why entity_create_rectangle is rated Medium
This tool creates new geometric entities in CAD drawings. While creation is reversible (entities can be deleted), the operation modifies the drawing state and could introduce unintended geometry into designs. The severity is medium rather than high because the blast radius is limited to adding geometry rather than destroying critical data or executing arbitrary code.
From the tool's definition Tool name 'entity_create_rectangle' combined with description 'Create a closed rectangular polyline between two corner points' indicates irreversible creation of CAD geometry.
Attacks that exploit this kind of access
The rule that runs entity_create_rectangle safely
PolicyLayer is an MCP gateway: it sits between your AI agents and AutoCAD MCP Pro, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For entity_create_rectangle, this is the rule to start with:
entity_create_rectangle 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 AutoCAD MCP Pro, apply this rule, and every entity_create_rectangle call is checked against it from then on.
Questions about entity_create_rectangle
Create a closed rectangular polyline between two corner points. It is categorised as a Write tool in the AutoCAD MCP Pro MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the AutoCAD MCP Pro MCP server in PolicyLayer and add a rule for entity_create_rectangle: 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 AutoCAD MCP Pro. Nothing to install.
entity_create_rectangle 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 entity_create_rectangle 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 entity_create_rectangle. 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.
entity_create_rectangle is provided by the AutoCAD MCP Pro MCP server (u-c4n/autocad-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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