绘制多段线 (Polyline) Args: points: 坐标列表 [x1, y1, x2, y2, ...] closed: 是否闭合 layer: 图层名称
AI agents use draw_polyline to create or update resources in AutoCAD MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your AutoCAD MCP Server environment.
This tool creates a new polyline geometry in an AutoCAD drawing. It is a Write operation (creates data reversibly — the polyline can be deleted later). The blast radius is low since misuse would only result in an unwanted polyline being drawn, which is easily undone.
From the tool's definition 绘制多段线 (Polyline) — 'draw' operation that creates a new polyline entity in the drawing
Documented attack patterns abuse exactly the kind of access draw_polyline 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 draw_polyline:
{
"version": "1",
"default": "deny",
"tools": {
"draw_polyline": {
"limits": [
{
"counter": "draw_polyline_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}draw_polyline 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.
Free to start. No card required.
绘制多段线 (Polyline) Args: points: 坐标列表 [x1, y1, x2, y2, ...] closed: 是否闭合 layer: 图层名称. It is categorised as a Write tool in the AutoCAD MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the AutoCAD MCP Server MCP server in PolicyLayer and add a rule for draw_polyline: 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.
draw_polyline 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 draw_polyline 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 draw_polyline. 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.
draw_polyline is provided by the AutoCAD MCP Server MCP server (zh19980811/easy-mcp-autocad). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 19 AutoCAD MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
19 AutoCAD MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.