القائمة
Use when adding or editing OAS extension blocks — machinery, materials, site, MEP, or Autodesk metadata — that augment a Core or Layout document.
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استنادا إلى تصنيف SOC المهني
Use when authoring or editing OAS-Core JSON — rooms, walls, openings (doors/windows), curtain walls, roofs, floor slabs, furniture, railings, or annotations in a 2D floor plan.
Use when writing or debugging OAS geometry — points, polygons, line segments, arcs, circles, spirals, fillets, units, or coordinate conventions. Load before any geometry-heavy edit.
Use when producing or editing fully resolved OAS-Layout JSON — multi-level plans with levels, rooms, walls, openings, slabs, roofs, furniture, railings, and inter-level connections.
Use when capturing OAS design intent — room requirements, area targets, adjacency rules, circulation rules, or global constraints — before any geometry has been resolved.
Use when mapping OAS plans to a visual output — SVG, Canvas, or WebGL — including scale, axis orientation, and z-order layering.
| name | oas-extensions |
| description | Use when adding or editing OAS extension blocks — machinery, materials, site, MEP, or Autodesk metadata — that augment a Core or Layout document. |
Use this skill any time the task involves attaching domain-specific data outside the Core/Layout vocabulary: industrial machinery, materials, MEP systems, site context, or vendor metadata (Autodesk/Revit families, APS URNs). If the data fits a Core entity directly (e.g. a Furniture placement), keep it in Core — don't reach for an extension.
Extension envelope — top-level extensions dictionary keyed by extension nameMachinery — industrial equipment with multi-axis rotation and CAD geometry sourceMaterial — material definitions referenced by id from Core/Layout entitiesSite — site context (boundaries, orientation, surroundings)AutodeskMetadata — Revit family names, APS URNs, vendor-specific identifiers"extensions": { "oas-machinery": { "version": "..." }, "oas-autodesk": { ... } }. Parsers must still accept the legacy array form, but new documents should emit the dictionary.oas-furniture (position, rotation, dimensions, in_room) and oas-3d (wall_height_mm, base_offset_mm, top_profile_points, etc.) are deprecated extension names. Put these fields directly on Core entities; do not declare "oas-furniture" in extensions.version field independent of the OAS document version. Semver applies.rotation_deg (Z, the default), rotation_x_deg, rotation_y_deg. Separate fields in degrees; don't fold them into one.geometry_ref vs geometry_source. Base oas-machinery uses a simple geometry_ref URI/path string. When oas-autodesk is also active, machinery may carry the structured geometry_source object (urn, external_id, item_id, file_name, is_y_up, import_mode, mesh_quality) for APS Model Derivative / ACC imports.revit_family / revit_type, APS external_id, etc., go under oas-autodesk, never inline on Core Wall.type_name.See docs/extensions.md for the full reference, including the dictionary envelope, per-extension schemas (machinery, autodesk, MEP, materials, site), and the 1.0→1.1 migration notes.
oas-core — the document an extension augmentsoas-layout — extensions also attach to resolved layouts (e.g. machinery placed on a floor)