AI agents invoke vba_pattern_features 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 generates VBA code for SolidWorks pattern features. Given the server uses a COM bridge to control SolidWorks, generated VBA is likely executed against the live application. VBA execution can trigger arbitrary SolidWorks operations including model modifications, making this an Execute-category risk. Misuse could corrupt or irreversibly alter CAD models.
From the tool's definition 'Generate VBA for pattern features' — generates and presumably executes VBA code within SolidWorks via COM bridge
Documented attack patterns abuse exactly the kind of access vba_pattern_features 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 vba_pattern_features:
{
"version": "1",
"default": "deny",
"tools": {
"vba_pattern_features": {
"limits": [
{
"counter": "vba_pattern_features_rate",
"window": "minute",
"max": 10,
"scope": "grant"
}
]
}
}
} vba_pattern_features 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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Generate VBA for pattern features. 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 vba_pattern_features: 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.
vba_pattern_features 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 vba_pattern_features 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 vba_pattern_features. 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.
vba_pattern_features 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.