通过Handle在AutoCAD中高亮显示指定实体 Args: handle: 实体的Handle值 color: 高亮颜色码（1=红色, 2=黄色, 3=绿色, 4=青色, 5=蓝色, 6=洋红色）
AI agents use highlight_entity 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.
Highlighting an entity modifies its visual properties (color) in the drawing. This is a reversible write operation — the entity's color attribute is changed but the entity itself is not deleted or destroyed. It is not purely a read operation since it alters the drawing state, and it is not destructive since the change can be undone.
From the tool's definition 高亮显示指定实体 — highlights a specified entity in AutoCAD by changing its color property
Documented attack patterns abuse exactly the kind of access highlight_entity 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 highlight_entity:
{
"version": "1",
"default": "deny",
"tools": {
"highlight_entity": {
"limits": [
{
"counter": "highlight_entity_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}highlight_entity 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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通过Handle在AutoCAD中高亮显示指定实体 Args: handle: 实体的Handle值 color: 高亮颜色码（1=红色, 2=黄色, 3=绿色, 4=青色, 5=蓝色, 6=洋红色）. 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 highlight_entity: 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.
highlight_entity 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 highlight_entity 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 highlight_entity. 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.
highlight_entity 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.