AI agents use dimension_auto 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.
Based on the tool name, 'dimension_auto' likely automatically adds dimension annotations to a CAD drawing, which is a write operation (creating/modifying entities). The server context confirms it handles entity modification. However, the empty description significantly lowers confidence. Severity is medium as misuse could clutter or corrupt drawing annotations but is generally reversible.
From the tool's definition Tool name 'dimension_auto' on an AutoCAD automation server; description is empty and uninformative.
Documented attack patterns abuse exactly the kind of access dimension_auto gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and AutoCAD MCP Pro, and nothing reaches the server without passing your rules. This is the rule we recommend for dimension_auto:
{
"version": "1",
"default": "deny",
"tools": {
"dimension_auto": {
"limits": [
{
"counter": "dimension_auto_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}dimension_auto 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.
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dimension_auto. 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 dimension_auto: 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.
dimension_auto 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 dimension_auto 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 dimension_auto. 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.
dimension_auto 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.
Start from AutoCAD MCP Pro, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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108 AutoCAD MCP Pro tools catalogued and risk-classified — across an index of 43,000+ MCP servers.