sw_connect · Solidworks MCP: Risk & Policy

WHAT IT DOES

What sw_connect does on Solidworks

AI agents invoke sw_connect to trigger actions in Solidworks. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why sw_connect needs a policy

This tool launches or connects to a SolidWorks application instance via COM automation. Starting an external application process is an Execute-category action — it triggers an external operation with effects that depend on the system state. It is not merely reading data, nor is it destructive or financial.

From the tool's definition 连接到 SolidWorks（如果未运行则启动新实例）。可设置是否显示窗口。

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

sw_connect Rate-limited

sw_connect stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "sw_connect": {
      "limits": [
        {
          "counter": "sw_connect_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Solidworks, so you can run agents against it safely.

FAQ

Questions about sw_connect

What does the sw_connect tool do? +

连接到 SolidWorks（如果未运行则启动新实例）。可设置是否显示窗口。. It is categorised as a Execute tool in the Solidworks MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on sw_connect? +

Register the Solidworks MCP server in PolicyLayer and add a rule for sw_connect: 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 Solidworks. Nothing to install.

What risk level is sw_connect? +

sw_connect is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit sw_connect? +

Yes. Add a rate_limit block to the sw_connect 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.

How do I block sw_connect completely? +

Set action: deny in the PolicyLayer policy for sw_connect. 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.

What MCP server provides sw_connect? +

sw_connect is provided by the Solidworks MCP server (yimu0824/solidworks-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.