This record as markdown: /tools/io-github-lokmenower-best-cad-mcp/select-by-crossing.md
What select_by_crossing does on Pypi:best Cad
AI agents use select_by_crossing to create or update resources in Pypi:best Cad, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Pypi:best Cad environment.
Why select_by_crossing is rated Medium
This tool changes the active selection set in AutoCAD, affecting which entities are currently selected. While selection state is typically ephemeral and reversible (can reselect differently), it represents a write operation that alters drawing application state. It is not Read (it modifies state), not Execute/Destructive (no permanent data deletion or arbitrary code execution), and not Financial.
From the tool's definition Tool name 'select_by_crossing' and description indicate entity selection in AutoCAD. The description states '交叉选择(与选择框相交的实体都被选中,比窗口选择更宽松)' meaning 'crossing selection (all entities intersecting with the selection box are selected, more lenient than window…
Attacks that exploit this kind of access
The rule that runs select_by_crossing safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Pypi:best Cad, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For select_by_crossing, this is the rule to start with:
select_by_crossing 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 Pypi:best Cad, apply this rule, and every select_by_crossing call is checked against it from then on.
Questions about select_by_crossing
交叉选择(与选择框相交的实体都被选中,比窗口选择更宽松)。. It is categorised as a Write tool in the Pypi:best Cad MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Pypi:best Cad MCP server in PolicyLayer and add a rule for select_by_crossing: 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 Pypi:best Cad. Nothing to install.
select_by_crossing 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 select_by_crossing 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 select_by_crossing. 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.
select_by_crossing is provided by the Pypi:best Cad MCP server (pypi:best-cad-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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