AutoCAD Python automation: Batch entity extraction, layer control, and parametric geometric drawing generation.

SAP2000 OAPI modeling and post-processing: Structural model creation, load cases, and internal force extraction.

YJK model database (.ydb) read/write: Parsing low-level SQLite schema and reading/writing structural member tables.

CAD Floor Layout → YJK Model: Automated grid/element recognition and single-story structural model synthesis.

Multi-story DWG → ydb Model: Batch multi-floor drawing parsing, vertical alignment, and master model merging.

Structural Scheme Layout Workflow: AI-guided scheme planning, column grid generation, and member sizing.

CAD Structural Drawing Chinese-to-English: Intelligently translates Chinese annotations and layout text into English in DWG files, supporting preselection or full drawing scans while preserving layers.

Rhino 3D Parametric Modeling & Script Automation: Automate Rhino 8/7/6 via Python COM & RhinoScript with 1245 offline official APIs and VARIANT marshaling.

IFC to Web Viewer: Converts .ifc models into interactive Three.js 3D web viewers with floor & component toggles (columns, beams, slabs, walls) and instant public deployment.

Cost-aware multi-agent foreman: Allows any lead agent (Codex, Claude Code, Antigravity) to delegate research, review, and scoped code edits to workers in isolated git worktrees with strict review verdicts.

2D Planar Direct Stiffness Method FEM calculation core: Element stiffness matrix, coordinate transformation, master stiffness matrix assembly, and displacement/reaction solver.

Civil engineering drawing conventions & Canvas renderer: Mandatory tension-side bending moments, signless BMD, parabolas, and standard support graphics.

Classic structural benchmarks & automated regression suite: Simply supported beams, cantilevers, and continuous beams analytical comparisons (<0.01% tolerance).

Dual-form packaging & deployment: 20MB lightweight Nginx containerized deployment and offline Electron desktop client scaffold.