Local CAD Automation

Problem

This skill bridges the gap between a remote agent and a Windows workstation running CAD software. It turns user intent into JSON calls to a local skill_runner.py, which drives ZWCAD or AutoCAD for process control, drawing, annotation, layer handling, and document management.

How it works

• Process control: use launch_app, close_app, is_app_running, and open_file_in_app to start, stop, inspect, or open CAD files.
• Drawing and annotation: call zwcad_com with an action, such as draw_circle, draw_polyline, or add_dim_linear; highway-oriented actions include draw_centerline, draw_alignment, and draw_slope_line.
• Layers and documents: support actions like add_layer, set_current_layer, new_doc, and save_as.
• Fallback path: if the COM route is unavailable, use exec_cad_command to run SCR-script style commands.

Notes

• The skill runs on a local Windows workstation and expects a Python environment with the pywin32 dependency; ZWCAD should be launched once as an administrator to complete COM registration.
• The source material marks full COM automation primarily for ZWCAD and AutoCAD. Treat SolidWorks, CATIA, Creo, and Siemens NX as basic process or file-level targets rather than equivalent drawing APIs.
• Advanced entity, block, selection set, and style operations should be checked directly in zwcad_com.py.