AI agents call zoom_extents to retrieve information from AutoCAD MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only adjusts the viewport/view in AutoCAD to fit all objects on screen. It is a display/view operation with no side effects — it does not create, modify, delete, or execute anything. It is purely a read/view action.
From the tool's definition Zoom to show all objects in the drawing
Documented attack patterns abuse exactly the kind of access zoom_extents gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and AutoCAD MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for zoom_extents:
{
"version": "1",
"default": "deny",
"tools": {
"zoom_extents": {}
}
}zoom_extents is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Zoom to show all objects in the drawing. It is categorised as a Read tool in the AutoCAD MCP Server MCP Server, which means it retrieves data without modifying state.
Register the AutoCAD MCP Server MCP server in PolicyLayer and add a rule for zoom_extents: 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 Server. Nothing to install.
zoom_extents is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the zoom_extents 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 zoom_extents. 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.
zoom_extents is provided by the AutoCAD MCP Server MCP server (thepiruthvirajan/autocad-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 21 AutoCAD MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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21 AutoCAD MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.