Brings Industry Foundation Classes (IFC) support to Claude through IfcOpenShell running in Pyodide, letting you work with BIM files locally without backend dependencies. You get Python-based IFC parsing and manipulation capabilities plus a built-in viewer for inspecting building models. Reach for this when you need to query building geometry, extract construction data, analyze spatial relationships, or validate IFC files in your architecture and construction workflows. Since it runs IfcOpenShell in the browser via Pyodide, you avoid the complexity of native library compilation while getting full access to BIM data structures.