AI agents invoke run_vba_macro to trigger actions in SolidWorks MCP Server. 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.
This tool executes arbitrary VBA code in SolidWorks, which has access to the full COM object model and can perform any operation the SolidWorks application is capable of—including file I/O, model modifications, external process execution, and potentially destructive actions. VBA macro execution is the highest-risk form of scripting capability.
From the tool's definition Tool name 'run_vba_macro' and description 'Execute a VBA macro in SolidWorks' explicitly indicate execution of arbitrary code via VBA macros within the SolidWorks application.
Documented attack patterns abuse exactly the kind of access run_vba_macro gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and SolidWorks MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for run_vba_macro:
{
"version": "1",
"default": "deny",
"tools": {
"run_vba_macro": {
"limits": [
{
"counter": "run_vba_macro_rate",
"window": "minute",
"max": 10,
"scope": "grant"
}
]
}
}
} run_vba_macro 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.
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Execute a VBA macro in SolidWorks. It is categorised as a Execute tool in the SolidWorks MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the SolidWorks MCP Server MCP server in PolicyLayer and add a rule for run_vba_macro: 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 MCP Server. Nothing to install.
run_vba_macro is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the run_vba_macro 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 run_vba_macro. 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.
run_vba_macro is provided by the SolidWorks MCP Server MCP server (jianzhichun/solidworks-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from SolidWorks MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
84 SolidWorks MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.