Construction AutoCAD MCP

Attach an image (scan/photo of a plan, a render, a SketchUp export) as a faded underlay to draw over, on layer X-IMAGE (not plotted), sent to the back. Scale: calibrate {p1:[px,py], p2:[px,py], distance} = two pixels of a known dimension and its real length in drawing units (best), or width (drawing units of the whole image width), or units_per_pixel. Position: anchor {pixel:[px,py], at:[x,y]} puts a pixel (e.g. grid A-1) on a drawing point, else the bottom-left corner at "at". Returns pixel_to_drawing (x = x0 + x1*px + x2*py, y likewise), used by draw_entities image_handle.

Drawing QA: stacked duplicates (they double quantities), polylines that look closed but are not, open polylines on area layers, Vietnamese/non-ASCII text in SHX styles (shows "?"), missing fonts, unresolved xrefs and images, objects on Defpoints (never plot), dimensions whose value was typed over, objects far from the rest (blow up zoom extents), tiny/empty objects, objects on layer 0, color/linetype/lineweight not ByLayer, objects on hidden layers, unitless drawing; plus layers outside the standard. Each issue has handles (first 20) to fix with set_properties/delete_entities.

Create a sheet: a layout on ISO paper (A0-A4) for "DWG To PDF.pc3" with monochrome.ctb, a frame and title block (TCVN/ISO margins, 180 mm title block: company, project, client, drawing title, scale, date, drawn/checked by, drawing no., revision, sheet) and a locked viewport showing a model window at a standard scale (auto-fitted if scale is omitted). replace=true rebuilds a layout of the same name. Export with export_pdf.

Define (or with replace=true redefine) a block from entity specs (same format as draw_entities, relative to base). Contents go on layer 0 unless a layer is given, so each insert takes its own layer. attributes: [{tag, prompt?, default?, at, height, align?: center|middle_center, invisible?}]. Use blocks for repeated items (doors, furniture, fixtures, title marks); insert with draw_entities type=block.

Delete entities by explicit handle (never by selection). One Undo step.

Beam schedule (bảng mặt cắt dầm) of the structural set: for every beam type its section at the support (GỐI) and at midspan (NHỊP) with the slab flange, the slab level (FL), bars, stirrups and b/h dimensions, titled "DẦM D2.1 (220x400) - SL: 03". beams default to those of the draw_structure_plan calls of this session; or give beams [{name, b, h, count, level, slab, bars: {support: [{face, d, n}], span: [...]}, stirrup: {d, support, span}}]. Bars not given are preliminary (by depth) and reported as assumed.

Reflected ceiling plan (mặt bằng trần đèn): a copy of the plan at 1:50 without door leaves; per room the drop band along the walls (step line, LED cove dashed), downlights in the band about every spacing (a grid on flat ceilings), a ceiling lamp in the middle or a pendant over each dining table of draw_furniture_plan, level tags (code over level) for the band and the field, the room name; then the light legend with counts (remembered for material_schedule). Defaults by room name (reported in assumed): dry rooms FL-01 porcelain 600x600 centred, SK-01 skirting 100, WL-01 white paint, CL-01 suspended gypsum +3.000 (floors of 3.3 m: +2.800) with a 600 wide, 150 deep drop band and LED cove (flat in rooms narrower than 2.4 m); stairs FL-04 granite treads, no ceiling (stairwell); kitchens the same plus WL-03 backsplash tiles between the base and wall cabinets; WC/bathrooms FL-02 anti-slip 300x300, WL-02 wall tiles 300x600 to the ceiling, CL-02 moisture-resistant gypsum +3.000 flat; yards/balconies FL-03 outdoor tiles, no ceiling.

Cover sheet of a set (tờ bìa): "HỒ SƠ BẢN VẼ <set>" large, the phase, then project, item, client, design consultant, contractor, location and date, framed. set: KIẾN TRÚC, KẾT CẤU, NỘI THẤT... Put it on its own sheet before the drawing list.

Door and window schedule of the architectural set (bảng thống kê cửa đi, cửa sổ) from the plan of draw_plan: every type (by tag, kind and size, on every floor) drawn in elevation with its frame, leaves and opening direction (dashed lines meet on the hinge side), glazing, width / height / sill dimensions, its tag and count, then the table: tag, kind, W x H, sill, count by floor, description. materials {tag: description} replaces the default descriptions (listed as assumed).

Drawing list (danh mục bản vẽ) of the set in this drawing: a table of its sheets (number, title, scale, paper). sheets default to the layouts create_layout made in this drawing in this session; or give sheets [{number, title, scale, paper, note}]. item names the set (KIẾN TRÚC, KẾT CẤU, NỘI THẤT). Put it on the first sheet of the set (e.g. KT-00).

Draw elevations derived from the plan of draw_plan (same walls, openings, columns, grids), so they always agree: the nearest walls and columns win, roofs and columns hide what is behind them, doors and windows with frames, plinth line, ground line with earth hatch, roofs (gable end or eaves side), level marks, height dimensions, grid bubbles with spacing, title "MẶT ĐỨNG TRỤC 1-3". sides: plan sides the viewer stands on (bottom = front at the bottom of the plan). Several sides are placed side by side to the right of the drawing unless at is given (left end of the facade at ±0.000). Decorative details seen in a photo (mouldings, gable ornaments) can be added with draw_entities. heights {ground: -450 (outside ground, mm from the finished floor ±0.000), top: 3600 (top of walls / eaves), door_head: 2400, window_sill: 900, window_head: 2400, slab: 100, foundation: {depth: 1500, width: 900, height: 350, lean: 100}, walls_to_roof: end|all (walls across the ridge rise to the roof: gable ends only, or every one = tường thu hồi)}; per opening: sill, head; per wall: height. roofs [{type: gable|flat, ridge: x|y (direction of the ridge in plan), pitch (deg), overhang, thickness, base (eaves level, default heights.top), parapet (flat), region [[x0,y0],[x1,y1]] (default: the whole building)}] - several parts for e.g. a porch gable in front of the main roof.

Draw a batch of entities in one Undo step (if one spec is invalid nothing is drawn and the error names it). Missing layers are created (standard layers with their standard properties). Returns each entity's handle and the bounds. Each entity: {type, layer, color?, linetype?, lineweight?, ...}. Types and fields (points [x,y], angles in degrees): - line {from, to} or {points:[...]} (one line per segment) - polyline {points, closed?, bulges? (per vertex, arc segments), width? (symbols only, never for walls)} - rectangle {from, to} or {corner, width, height, rotation?} - circle {center, radius|diameter}; arc {center, radius, start_angle, end_angle} or {start, mid, end} - ellipse {center, major_axis:[dx,dy], ratio, start_angle?, end_angle?}; spline {points, closed?}; point {at} - text {at, text, height, rotation?, align (left|center|right|middle|top_left|...|bottom_right), style?} - mtext {at, text (\n = new line), height, width?, align (default top_left), style?} - hatch {boundary:[pts] | boundaries:[[pts],[island]...] | boundary_handles, pattern (SOLID, ANSI31, ANSI37, AR-CONC, AR-SAND, AR-BRSTD, AR-PARQ1, AR-B816, NET, DOTS, GRAVEL, EARTH...), scale, angle} - dimension {kind: linear|aligned|angular|radius|diameter, from, to, at (point on the dimension line) or offset, direction (horizontal|vertical|aligned|angle, linear), text? ("<>" = measured), style?}; angular {center, from, to, at}; radius/diameter {center, radius, angle} - dim_chain {points (measured points), direction, at or offset, total? (adds the overall dimension), style?} - leader {points (arrow first, text last), text, height?} - block {name, at or points:[...] (several copies), scale?, rotation?, attributes?:{TAG: value}, file? (.dwg to load the block from), redefine?} - table {at (top-left), rows:[[...],...], title?, col_widths?, row_height?, height?} Text heights are in drawing units: paper height x scale (2.5 mm at 1:100 = 250). Use style "MCP-ARIAL" for Vietnamese text. image_handle: points (and radi…

Architectural finish quantities (bảng khối lượng hoàn thiện kiến trúc) of the building of draw_plan, floor by floor, for the architectural set: floor tiles by finish, wall tiles (toilets, kitchen backsplash), skirting; skim coat and paint of the inner walls, the outer walls (faces with no room on their side, the plinth, parapets) and the ceilings (gypsum, concrete soffits); gypsum ceilings; waterproofing of toilets, balconies and the roof terrace (300 up the walls), screed to falls, the tower roof; stair granite (treads, landings, risers), stair and balcony railings; doors and windows by type (sets and m²). The rooms and finishes are those of the interior tools (material_schedule, the same defaults by room name, the finishes given there in this session). Drawn as a table with the quantity of every floor (diễn giải); csv_path writes it for Excel. Masonry and plaster are in the structural bill (draw_quantity_schedule).

Floor finish plan (mặt bằng lát sàn): a copy of the plan at 1:50 with the real tile or plank joints of each room (tiles centred in the room by default, or from a start point; planks staggered by a third), kept clear of the room names, a code tag under each name and the legend (finish, swatch at the real size, area m² and rooms). Defaults by room name (reported in assumed): dry rooms FL-01 porcelain 600x600 centred, SK-01 skirting 100, WL-01 white paint, CL-01 suspended gypsum +3.000 (floors of 3.3 m: +2.800) with a 600 wide, 150 deep drop band and LED cove (flat in rooms narrower than 2.4 m); stairs FL-04 granite treads, no ceiling (stairwell); kitchens the same plus WL-03 backsplash tiles between the base and wall cabinets; WC/bathrooms FL-02 anti-slip 300x300, WL-02 wall tiles 300x600 to the ceiling, CL-02 moisture-resistant gypsum +3.000 flat; yards/balconies FL-03 outdoor tiles, no ceiling.

Furniture layout plan (mặt bằng bố trí nội thất): a copy of the plan of draw_plan at 1:50 (walls, doors, windows, grids, dimensions, room names) to the right of the drawing (or at offset), with the furniture and joinery from the library and their code tags, and elevation keys (A top, B right, C bottom, D left) for the interior elevations. copy=false draws the items on the plan itself. Place an item with room + wall (A/B/C/D or top/right/bottom/left: its back against that wall) + offset from the left end of the wall seen from inside (default centred) + gap, or at (middle of its back edge) + facing (degrees the front faces), or center + facing (freestanding, e.g. a dining table). width/depth/height override the type size; code (default per type, e.g. FN-01 bed), description; kitchen_base takes sink and hob (x from its left end) and modules [{w, type: door|doors|drawers|sink|open|appliance}]; kitchen_wall/hood take z0 (underside). The items are remembered for draw_interior_elevation, draw_ceiling_plan (pendants over tables), draw_joinery_detail and material_schedule. Types (w x d x h): bed (1600x2000x450), nightstand (450x400x500), wardrobe (1600x600x2400), sofa (2100x850x800), armchair (850x850x800), coffee_table (1100x600x420), tv_cabinet (1800x400x450), dining_table (1600x900x750), chair (450x450x850), desk (1200x600x750), kitchen_base (2400x600x850), kitchen_wall (2400x350x700), hood (700x480x650), fridge (700x700x1800), washer (600x600x850), toilet (400x700x400), vanity (800x500x850), shower (900x900x2000), bathtub (1600x750x550), shoe_cabinet (1000x350x1000), altar (1530x610x1270), bookshelf (800x300x2000).

Interior elevations (triển khai mặt đứng nội thất) of the walls of one room, seen from inside, side by side: cut end walls, floor slab and ceiling (the drop band cut at the ends), the doors and windows of the wall (from the plan), the furniture and joinery of draw_furniture_plan backed on it (front view) and along the side walls (side view), wall finish joints (tiles, panels), kitchen backsplash between base and wall cabinets, skirting, width and height dimension chains, material notes with leaders (codes + descriptions), title "MẶT ĐỨNG A - <room>". walls: A top, B right, C bottom, D left (as in plan). Defaults by room name (reported in assumed): dry rooms FL-01 porcelain 600x600 centred, SK-01 skirting 100, WL-01 white paint, CL-01 suspended gypsum +3.000 (floors of 3.3 m: +2.800) with a 600 wide, 150 deep drop band and LED cove (flat in rooms narrower than 2.4 m); stairs FL-04 granite treads, no ceiling (stairwell); kitchens the same plus WL-03 backsplash tiles between the base and wall cabinets; WC/bathrooms FL-02 anti-slip 300x300, WL-02 wall tiles 300x600 to the ceiling, CL-02 moisture-resistant gypsum +3.000 flat; yards/balconies FL-03 outdoor tiles, no ceiling.

Joinery shop drawing (chi tiết đồ gỗ) at 1:10: kind kitchen (base cabinets with plinth, carcass, doors/drawers, stone top; backsplash; wall cabinets) or wardrobe (plinth, doors, top boxes): front elevation with the modules, hinge side dashed, handles, module and height dimension chains and section mark 1-1; section 1-1 through the carcass (panels 17 mm, back 8 mm, shelves, door, plinth, countertop, wall cabinet) with dimensions and material notes. item: the code of a kitchen_base or wardrobe of draw_furniture_plan takes its width, modules, sink and hob (and the kitchen_wall of the same room). materials {carcass, door, back, top, plinth, backsplash, rod, handle} replace the default specifications (reported in assumed).

Draw a complete floor plan in one Undo step from a plan description in mm (read from an image, a sketch or a 3D model): - walls: [{id?, points:[[x,y],...] (wall AXIS), thickness (200), justify: center|left|right (side of the axis, looking along it), closed?, material: brick|concrete|block|light|stone|solid|none}] -> clean L/T/X junctions (wall pieces are unioned), cut outline on A-WALL 0.5, material hatch on A-WALL-PATT - openings: [{wall (id or index), segment (0 = first axis segment), offset (from the segment start to the opening edge) or at (centre point), width, type: door|double_door|sliding|window|opening, toward:[x,y] (point the door swings to, e.g. inside the room) or side: left|right, hinge: start|end, tag? ("D1"), tag_at? (tag position when the automatic one collides)}] -> wall cut, leaf + swing arc, window lines; door tags go opposite the swing, window tags outside - columns: [{at, size:[w,h] or diameter, rotation?, pattern?}] and/or grid_columns {size} (a column at every grid intersection): cut out of the walls, solid hatch - grids: {x:[0, 6000, ...] or [{at, label}], y:[...], bubbles: both|start|end} -> axes 1,2,3 (x) and A,B,C (y) - rooms: [{name, at (point inside), number?, hatch?:{pattern, scale}}] -> area MEASURED from the walls, label "name / xx,xx m²" on A-ANNO-ROOM, closed boundary on A-AREA (not plotted). A room not closed by walls gets a warning; unlabelled_spaces lists closed spaces without a room. - stairs: [{start (middle of the first tread edge), direction (deg, 90 = up the page), width, treads, going, label?}] or U stairs [{type: "u", region: [[x0,y0],[x1,y1]] (stairwell), direction: up|down|left|right (flight 1 going up), turn: left|right (side of flight 2), gap: 100, risers?}] -> two flights, half landing, treads, LÊN/XUỐNG walking lines, cut line - balconies: [{region (slab outside the walls), railing: 1100}] -> slab edge and railing - floors (a building of several storeys): [{name, height (3600 ground floor, 3300 above), level?, walls…

Bar schedule of the whole structural set (bảng thống kê cốt thép: footings, columns, ground beams and the beams of every slab with the bars and stirrups of structural_calc, slabs and stairs by the detailing rules; bars, lengths with laps and anchorage, weights by d²/162 as table formulas, totals per diameter) and the bill of quantities (bảng tổng hợp khối lượng vật tư: lean concrete, concrete and formwork of the footings, column stubs, ground beams, columns storey by storey, beams, slabs and stairs; steel by grade; brick walls by thickness in m² (and m³) less the openings; plaster inside, outside and of the soffits), each with how it is made up (diễn giải). Uses the last structural_calc of this session, else runs it with its defaults. The bar schedule flows in columns over pages (page_height mm, per_page columns), each page and the bill drawn apart for their own sheets (returned bounds); csv_path writes both for Excel. For estimating: the quantity surveyor checks them against the final drawings.

Roof plan of the architectural set (mặt bằng mái) from the plan of draw_plan, for flat roofs: a copy of the top floor plan with its walls (the parapets and the stair tower) at the plan scale with its grids and dimensions, the roof of the stair tower hatched, the roof terrace, floor drains with falls (i=2%) and rainwater pipes, the levels of the terrace, the parapet top and the tower roof, names and notes (waterproofing, screed to falls, pipes).

Draw a section derived from the plan of draw_plan along a cut line (from/to, looking to its left or right like the plan's section mark, or mark: the label of a section drawn by draw_plan): walls cut (heavy outline + brick hatch) with the openings they cross and concrete lintels, footings with lean concrete, floor slab and fill, the roof cut (gable profile, eaves band or flat slab with parapets), walls/doors/windows seen beyond in thin lines, room names, level marks, height dimensions, grid bubbles, title "MẶT CẮT A-A". Footings are drawn as a typical section (sizes from heights.foundation), not a design. heights {ground: -450 (outside ground, mm from the finished floor ±0.000), top: 3600 (top of walls / eaves), door_head: 2400, window_sill: 900, window_head: 2400, slab: 100, foundation: {depth: 1500, width: 900, height: 350, lean: 100}, walls_to_roof: end|all (walls across the ridge rise to the roof: gable ends only, or every one = tường thu hồi)}; per opening: sill, head; per wall: height. roofs [{type: gable|flat, ridge: x|y (direction of the ridge in plan), pitch (deg), overhang, thickness, base (eaves level, default heights.top), parapet (flat), region [[x0,y0],[x1,y1]] (default: the whole building)}] - several parts for e.g. a porch gable in front of the main roof.

Stair detail sheet of the architectural set (chi tiết cầu thang) for a U stair of the plan of draw_plan: the stair plan on each kind of floor (start, typical floors grouped, arrival) with the walls around it, the treads numbered, run / landing / width dimensions (n x going), floor and landing levels, grids and the section mark 1-1; section 1-1 along the flights (cut flight with its RC waist slab and landing, the flight beyond, floor slabs and walls cut, handrails with balusters, riser dimensions n x riser per flight, floor heights, levels); the build-up notes of treads and landing with 2h + b; and the tread and handrail detail (granite, mortar, brick steps, waist slab, plaster, handrail, balusters) at detail_scale, drawn apart: put the two parts on one sheet with create_layout views [{window: main, scale}, {window: detail, scale: detail_scale}].

Draw a reinforced-concrete detail at a detail scale (default 1:20 sections, 1:25 beams/footings) on the structural layers (S-CONC, S-REBR, S-REBR-STIR, S-ANNO-*): concrete outline, bars and stirrups with 135° hooks, bar marks with leaders, dimensions, levels, title. Sizes and reinforcement must come from the user or the structural design (this tool computes no strength: draw what the engineer specifies, or label values as typical/to be checked). Returns the bar schedule rows (length, count) for rebar_schedule; schedule=true also draws the table next to the detail. Warns when bars in one row do not fit the clear spacing. kind=section: rectangular RC cross-section {b, h, cover: 25, groups: [{face: bottom|top|bottom2|top2|corners|sides|left|right, d, n, mark}], stirrup: {d, spacing, mark} (null = none), label: "1-1"}; kind=beam: beam along its spans {spans: [axis-to-axis], support: column width, b, h, cover, bottom {d, n, mark}, top {d, n, mark}, extra_top {d, n, mark, ratio: 0.25} (support bars over ratio x span), stirrup {d, end: 100, mid: 200, zone: 0.25, mark}, axes: labels, name, count: identical members} with sections 1-1 / 2-2; kind=footing: pad footing section {B, L, H, edge (sloped when < H), cover: 50, lean: 100, depth (bottom below ±0.000), ground, mesh {d, spacing, mark}, column {b, top, bars {d, n, mark}, ties {d, spacing, mark}}, name, count}.

Structural general notes (ghi chú chung kết cấu) as tables: materials (concrete B20/B15/B7.5, steel CB240-T / CB300-V), concrete cover by member, anchorage and lap lengths by diameter, typical lintels by span, and numbered notes (codes, laps, formwork, preliminary sizes). TCVN 5574:2018 defaults, every value can be given: concrete {main, minor, lean, steel_small, steel_large}, cover {footing, ground_beam, column, beam, slab, lintel}, laps {anchor_tension, anchor_compression, lap_tension, lap_compression} (multiples of d), lintels (rows), notes (lines). Defaults are listed as assumed.

Structural framing plan of one slab (mặt bằng kết cấu dầm sàn) from the plan of draw_plan, for the structural set (its own drawing: new_drawing first): beams along the load-bearing walls of the floor below (walls of 150 mm and more; thinner partitions stand on the slab), named per slab (D2.1, D2.2 ... for the slab of floor 2, DM.1 ... for the roof) with b x h and their count, columns at the wall nodes, the slab thickness, lowered slabs (wet rooms, balconies -50) hatched, stair openings crossed, grids with bubbles and dimensions, title "MẶT BẰNG KẾT CẤU SÀN <floor> (+level)". Sizes are preliminary (h = span/12 rounded up to 50, 300-700; b = wall thickness) and reported as assumed: the structural engineer designs them; give beam {b, h} and column {size} to use theirs. The beams are remembered for draw_beam_schedule.

Wall finish plan (mặt bằng hoàn thiện tường): a copy of the plan at 1:50; along the inside face of every wall of a room a band of its finish (one line for paint, two lines with the tile joints for tiles), broken at the doors and windows, the kitchen splashback behind the base cabinets of draw_furniture_plan, a code tag per room with the tiling height, the legend with the area of each wall finish (openings and splashback deducted) and the general notes. Defaults by room name (reported in assumed): dry rooms FL-01 porcelain 600x600 centred, SK-01 skirting 100, WL-01 white paint, CL-01 suspended gypsum +3.000 (floors of 3.3 m: +2.800) with a 600 wide, 150 deep drop band and LED cove (flat in rooms narrower than 2.4 m); stairs FL-04 granite treads, no ceiling (stairwell); kitchens the same plus WL-03 backsplash tiles between the base and wall cabinets; WC/bathrooms FL-02 anti-slip 300x300, WL-02 wall tiles 300x600 to the ceiling, CL-02 moisture-resistant gypsum +3.000 flat; yards/balconies FL-03 outdoor tiles, no ceiling.

Overview of the open drawing: file, units (INSUNITS), extents, current layer/text style/dimension style/DIMSCALE, model-space entity counts by type, number of layers/blocks/xrefs, layouts, text and dimension styles.

Plot to PDF with DWG To PDF.pc3: layouts (names, ["all"], or default the current one) become pages of one PDF; layouts on different paper sizes give one PDF per size (<name>_A1.pdf, <name>_A3-portrait.pdf: see pdfs). For "Model": paper, orientation, window (default extents) and scale (default fit). monochrome.ctb unless plot_style is given. Plotting can take ~30 s on machines whose default Windows printer is an unreachable network printer.

Insert a DWG/DXF file into the drawing as a block (or exploded): e.g. a 2D export of a SketchUp/Revit plan, section or elevation to clean up and annotate, a standard detail, a site plan. layer_prefix renames the file's layers (e.g. "X-SU-") so they do not mix with yours. Check the size afterwards (units of the source).

Install (or update) the "ACAD MCP Bridge" add-in so the other tools can connect: copies AcadMcpBridge.bundle into %APPDATA%/Autodesk/ApplicationPlugins, which AutoCAD 2021-2024 loads at startup (restart AutoCAD afterwards; the first time AutoCAD may ask to load an unsigned file: choose "Always load"). dry_run=true only reports.

List block definitions with their reference counts (dynamic blocks included), attribute tags, xref paths. Sorted by count.

List layers: name, color, linetype, lineweight, on/frozen/locked/plot, description and number of entities (all spaces).

Finish and material schedule (bảng thống kê vật liệu hoàn thiện): floors and ceilings in m² from the room outlines, skirting in m (door widths deducted), walls in m² (perimeter x height to the ceiling, openings deducted), kitchen backsplash, furniture/joinery/sanitary/equipment by count (draw_furniture_plan) and lights (draw_ceiling_plan); one row per code with its rooms. Draws a table (default right of the drawing) and csv_path saves it for Excel. Defaults by room name (reported in assumed): dry rooms FL-01 porcelain 600x600 centred, SK-01 skirting 100, WL-01 white paint, CL-01 suspended gypsum +3.000 (floors of 3.3 m: +2.800) with a 600 wide, 150 deep drop band and LED cove (flat in rooms narrower than 2.4 m); stairs FL-04 granite treads, no ceiling (stairwell); kitchens the same plus WL-03 backsplash tiles between the base and wall cabinets; WC/bathrooms FL-02 anti-slip 300x300, WL-02 wall tiles 300x600 to the ceiling, CL-02 moisture-resistant gypsum +3.000 flat; yards/balconies FL-03 outdoor tiles, no ceiling.

Create a new drawing from a template (default acadiso.dwt, metric) and make it current.

Open a .dwg/.dxf file in AutoCAD (or switch to it if already open). Handles from another drawing are not valid there.

Check the connection to AutoCAD: AutoCAD version, open drawing, bridge and server versions.

Purge unused layers, blocks, linetypes, text and dimension styles, registered apps (repeats for nested items). Standard layers are kept even when empty (keep_standard_layers). dry_run=true only lists what would go.

Quantity takeoff of the drawing (QS): per layer (or per block / type): count, length in m (lines, arcs, polylines, circles, splines), area in m² of closed polylines/circles/regions, hatch area in m² (separate, never add both), block counts, and for group_by=block the tally of attribute values. Filters as query_entities; selection_only uses the user's selection. csv_path saves the table for Excel (UTF-8).

Find entities and read their geometry: handle, type, layer, and per type: line from/to/length, polyline points/closed/length/area, circle/arc center/radius, text/mtext content/position/height, block name/position/rotation/scale/attributes, hatch pattern/area, dimension measurement. Filters combine (AND). detail=true adds polyline points, styles and bounds. Paged by limit/offset.

Bar schedule (bảng thống kê cốt thép): rows [{mark, shape, d (mm), length (mm per bar), n (bars per member), members}] (e.g. the schedule_rows of draw_structure_detail, several details combined) -> total bars, total length (m) and weight (d²/162 kg/m) per row, per diameter and overall. Draws it as a table at "at" (top-left, default right of the drawing) unless draw=false; csv_path also saves it for Excel.

Run AutoLISP in AutoCAD and return the value of the last expression (lists come back as JSON arrays, entities as "<entity handle>"). The code runs as one Undo group; errors come back as "LISP error: ...". (command ...) works. Use it only when no tool fits (e.g. AutoCAD commands such as OVERKILL, BOUNDARY, FLATSHOT, specific system variables). Never wait for user input (getpoint etc.).

Save the drawing (DWG, or DXF by extension/format). Empty path = save in place; a new path = Save As (the open drawing takes that name), overwrite=true to replace an existing file. version: 2018 (default), 2013, 2010, 2007, 2004, 2000. copy=true writes a copy and leaves the open drawing as it is (the default for DXF and older versions: an export for someone else).

Render the drawing to an image Claude sees (off-screen: the user's view is not changed), white background like a plot. view=extents (default) frames all of model space, window/handles frame that area, current = exactly what the user sees, or a direction (top, front, iso...) for 3D. space=current renders the active layout instead of model space. Use after every larger edit and compare with the source image. save_path also writes the PNG to a file (an image export, up to 4096 px with max_size).

Select entities in AutoCAD (grips) so the user can see them; empty handles clears the selection.

The objects the user has selected in AutoCAD (PICKFIRST): counts by type and layer, bounds and each entity (as query_entities).