Construct
Sends a construct or whole world into Blender with its named parts, build/assembly animation, working joints, and material and finish controls on sliders (painted from a small material map) so scenes can be rendered in Cycles; also offers OBJ in quads to model over, plus FBX and USD export.
Delivers constructs as true CAD shapes — geometry ready to open and edit in FreeCAD, alongside STEP files — so models can be used for CAD work and fabrication-oriented workflows.
Exports constructs as models with named parts at real sizes and working joints (doors, lids, hinges) in FBX form, so props, models and whole levels built in Construct can be brought into a Unity game project.
Construct
https://github.com/user-attachments/assets/8c39a196-9910-46a0-9746-4f15965adf15
Construct is a tool for AI agents. It turns everything that can be found out about a thing into one exact, checked description of it: its named parts at their real sizes, how they fit together, open and move, and how each one is known, measured or guessed. An agent does the research and writes the description. Construct checks it and builds from it, and the same description always gives the same result. Put constructs together and they make a world: a room, a street, a whole game level. Inside a world every construct is still whole, with its own parts, sources and joints, so you can move, reuse or open any of it.
Describe a thing, or show a place. Get a hologram, a 3D model, a print, a kit, or a whole world. Ask any AI agent in plain words and it builds an animated model in lines of light, in the Measured Light style. The result is a single web page you can open anywhere, and it is honest about what is known. The same construct can also become a 3D model with named parts and working joints, a print, a model kit, a CAD file or a film, or one piece of a world made with others.
A world can be asked for in plain words, put together from constructs you already have, or made from a single picture. Given one picture of a place, it builds the place zero-shot. Stortorget, Stockholm's old square, was made from a single photograph and stands almost exactly as the photograph shows it. Rain Harbour is a game level made from one concept picture, ready to open in Godot, Unity or Unreal. And a world comes apart again, construct by construct: rearrange it by hand in Hermes, or take any one construct out to open, export or reuse on its own.
Construct for Hermes. A native Hermes plugin. Ask for a thing in plain words and the construct appears live in the chat, with its 3D model, kit and NetLogo runs beside it. You can also place your constructs together into worlds.
hermes plugins install rtmandreyev/construct#hermes/construct(what it does, Villa Savoye in Hermes, step by step, worlds, step by step).Every piece stays separate. In a world made from one picture you can still handle each construct on its own: move a car, turn a tower, swap the signs, open a door on its hinge, export it to Blender or Godot, or reuse a building in another level (Rain Harbour, before and after).
Any agent, any model. Claude Code, Hermes, any MCP client or any OpenAI-compatible endpoint, or by hand.
Honest about what is known. Every part says how it is known, for its size and its shape separately, and every guess is shown in a shade of how firmly it is held. What each mark means.
One house style. Models never choose the colours, so every construct looks like it belongs with the rest.
It repairs itself. Every problem comes back with where it is and how to fix it.
Nothing to install. It needs only Python's standard library and a browser. There are no API keys and no network service inside Construct.
Find your path
You… | Construct gives you | Start here |
Everyday | ||
want a model of anything you can describe | A thing you describe, as a construct you can turn, replay and share | |
want a digital copy of something you own | Your chair, guitar, camera or heirloom in 3D from your photos and whatever its maker publishes, showing what was measured and what was guessed | |
are planning a change to your home or garden | Your shed, room or garden as a model to try the change on first: a deck, shelves, an extension, a new layout. A planning model, not a survey | |
want to customise or restore a vehicle | Your car, bike or scooter from its published sizes and your photos, your parts told apart from the factory's: try wheels or a new colour, plan a restoration, make a model of it | |
need a part that is missing or broken | A knob, bracket or cover drawn to the thing it fits, as a print or a CAD file someone can make | |
want a place from a photo: a square, a street, a building, your neighbourhood | One photograph is enough to start (Stortorget, from one); more pictures make it closer, up to a digital twin, house by house, each part saying how it is known | |
want your things together in one place | Your house with your furniture, your car and scooter under it, a ship over the roof: whole constructs placed at real size, arranged by asking or by hand | |
want a model kit of your own thing | Your scooter, house or guitar as a kit to print, glue and paint, with a booklet (one to open) | |
want to show someone what you mean | A model a builder, a fabricator or a friend can turn and measure, and a file for their own tools | |
Professionals and creators | ||
are a maker with a printer or CAD | A construct as one checked print at your printer's largest size (Tompion's clock: 21 cm on a desktop printer, 10½ hours in PrusaSlicer), a model kit with plates, a booklet and its steps in 3D (five to open), and true CAD shapes in FreeCAD and STEP | |
create new ships, creatures or places for a game, film or story | New things designed from real ones: a construct, a 3D model with working parts, a film (see KESTREL, an invented ice tug) | |
have software or a documented system you wish were a physical product | Its documented functions mapped to controls, displays and the parts inside, what the documents fix kept apart from what is designed (one worked example: a software synthesizer as a 61-key instrument) | |
are a game developer | Props in named parts at their real size, with doors and lids on working hinges in Godot, FBX for Unity and Unreal; models of what your game needs instead of stock ones; a whole level from one concept picture (Rain Harbour: 21 constructs placed 50 times, a hero car, one command to a Godot map) | |
are a 3D artist | A construct or a whole world in Blender with its build, joints, metal and finish on sliders, painted from a small material map (the Villa Savoye, 396 parts, and the Villa lived in, a world of 13, rendered in Cycles); OBJ in quads to model over; FBX and USD | |
work in film and motion | A construct that assembles across your track, pausing, surging and flaring with the music, shimmering with a vocal stem (three films); keyed reveals in Blender; a world's named views as shots | |
are an educator or researcher | An agent-based model's run drawn as a construct, compared, printed, filmed | |
work in a museum or archive | Reconstructions where every part says how it is known (measured, traced, seen in a photo, designed), sources cited and the critic's verdict kept: Tompion's clock from the Royal Collection's record, Stortorget house by house | |
are a developer | A scene contract that is data, a check that returns each problem with its path and a fix, the same scene always built the same; a command line, an MCP server, skills, and a Hermes plugin with thirteen tools ( |
Related MCP server: cad-mcp
New in 1.3
Every change with pictures and the commands to try it: What's new in 1.3, a walkthrough.
Worlds. Whole constructs placed together in one scene, each keeping its own parts. Put your chair, clock and synthesizer in your house, your cars under it and a ship over the roof, or build a street, a market square or a game level. The world's audit says what overlaps, what runs into the house it stands in, and what stands where a door opens. Six worlds ship to start from. Worlds, step by step · the format
A world from a picture, in masterpiece mode. Attach a photo or a concept picture. Hermes plans the pieces, builds each new construct in its own masterpiece rounds with a fresh critic and places them at real size. Then it runs the world itself through rounds against the picture. Two worlds were made this way, each from one picture: Rain Harbour, a game level, and Stortorget, Stockholm's old square at Christmas.
Arranged by hand in Hermes. Use Arrange on a world's card to drag a construct onto any floor, table or roof, turn it or lift it, add one from the library, and save, all without calling a model. There is a Worlds tab, with groups of your own and previews. The plugin ships 24 constructs (16 in 1.2.1) and all six worlds, the two from pictures with their artwork. A level made from one prompt can be remade by hand: Rain Harbour, before and after.
More ways out. FBX, USD and USDZ (through Blender); a Godot game map, where everything that stays put is one static body and every hinged or sliding part moves on its own joint; and the Blender add-on imports a world. Every construct now finishes with its own material map, which every export uses by default, and its artwork (signs, labels, screens) exports as textures in glTF and OBJ.
Sturdier masterpiece rounds, from two long runs: ties recorded, artwork kept in checkpoints, references carried from round to round, more time on request (
rounds extend), colour judged in the solid view.
New in 1.2
Every change with pictures and the commands to try it: What's new in 1.2, a walkthrough.
Construct for Hermes. A native Hermes plugin: ask for a thing in plain words, and the construct appears live in the chat; the 3D model turns in it, a kit steps through in 3D, exports are read back and summarised, long work runs in the background.
hermes plugins install rtmandreyev/construct#hermes/construct(what it does). Tested on Villa Savoye, from the request to a printable kit: step by step →New things from real ones. KESTREL, an invented 120 m ice tug, from its brief to its joints in Godot: the studies it reasoned from, thirteen masterpiece rounds, then a more detailed version that kept all 256 parts and added 242. Both in the gallery, Apache-2.0, with every brief.
Documentation → product. A software synthesizer's 354-page manual made into a 61-key instrument concept in one 64-minute session, with the prompt and the documents it wrote, and plainly what it showed and what it did not. The walkthrough →
Designed to a requirement. A designed part names the requirement it realises (what you asked for, or what a document says it does) and stays honestly designed; a new design is captioned ORIGINAL DESIGN.
Checked harder. A part that would tip over (
tips), a pillar through a window (crosses-glass), a solid left open (open), a number in the text that no longer matches its fact (stale-number), and pokes confirmed four times finer.A critic that stands apart. Sealed critic packets with only the renders, the references and your request; a blind verdict cannot be rewritten.
Cleaner 3D, bigger constructs. Solids wound outward, so Blender's normals and booleans agree; up to 1,024 parts and 48,000 lines; glued joints inside joints for Godot; kit boards that lie flat.
New in 1.1
Every feature with pictures and the commands to try it: What's new in 1.1, a walkthrough. And one construct taken through all of it, step by step: A longcase clock, end to end.
Your own formats. Adapters: what a construct holds, where to read it and the rules that keep an adapter honest, with a template that writes a parts sheet and an STL per part. Write your own →
Honest in finer shades. A part's size and its shape known apart, every guess in a shade of how firmly it is held. Press P.
See it as a solid. Press S in any construct;
check --fitnames what pokes through or floats.Contact you can trust.
checkfollows support through the solids, not their boxes: a part that only seems to rest on another, or hangs on a wire-thin strut, is named with the gap and the part to rest it on. Found from a desk fan two models built; it closed three gaps in the gallery.Cleaner 3D. Smoother solids, OBJ that subdivides cleanly, triangle quality reports, for Blender and any 3D program.
Ready for game engines. Glued pieces with working hinges for Godot, pieces that break apart and settle, colliders, seeded variants.
CAD. True CAD shapes in FreeCAD, with their joints, and STEP for any CAD program.
Prints. One checked print at the largest size your printer takes, voxel or exact, with engraved line art.
Model kits. A construct as a kit to print, glue and paint: numbered plates, a booklet drawn as a kit sheet, the same steps in 3D, every piece printable on its own. A first version, not yet built by a person.
Models come alive. A NetLogo extension: one command in NetLogo turns a run into a construct, with a replay bar, a legend and a How to read it panel, in views chosen for the data. Runs side by side for a lesson, a printable worksheet, CSV and Cite this run; a run as a film or a 3D model in Blender, or as plates you can stack. 388 of the Models Library's 445 models record with no edits.
Examples
Worlds. Rain Harbour and Stortorget were each made in Hermes from one picture and one request, zero-shot. Rain Harbour is a game level from a concept picture: 21 constructs placed 50 times, every sign in real English and Chinese, and a drivable hero car. Stortorget comes from one photograph of Stockholm's old square: eight real houses researched one by one, one market stall placed 41 times, and the tree, all standing almost exactly as the photograph shows them. The Villa Savoye, lived in, is made of your own constructs: the house with its furniture, a Braun, a Revox, a Leica, SERUM, an FJ62 and a DB5 under the pilotis, and KESTREL far off over the roof. Worlds, step by step →
Provenance and solids. On the left, the Duomo di Milano in provenance shades (P): verified sizes in cyan, traced shapes in blue, and every guess a deeper amber the more firmly it is held. On the right, the same Duomo as a solid (S), the way a modelling program shows it. Museums and archives →
Film mode. A construct assembling across a piece of music. Film and motion →
Game engines and Blender. The FJ62 in Godot, knocked apart into its pieces, and the same car going from light to a finished model. Game developers → · 3D artists →
Prints and CAD. An exact print of the FJ62 beside its voxel print; the Yamaha CFX and the Leica M3 in FreeCAD. Makers →
Model kits. Four constructs as kits to print, glue and paint: the Yamaha CFX piano (1:12, 54 pieces), Tompion's year-going clock (1:12, 34 pieces), the VW T1 Samba (1:16, 98 pieces) and an owner's Vespa GS 150 (1:12, 28 pieces), each with its steps in 3D and a booklet to print. Open them in your browser, or download their plates: the kits in the gallery. Makers →
NetLogo runs. A simulation's whole run as a construct, time as its height. Educators and researchers →
Beyond objects. The same visual language works for ideas and data. Here a classic NetLogo agent-based model, Uri Wilensky's Simple Viral Marketing, was rebuilt to run live in the browser and drawn as a construct: five hundred people, one product, word of mouth and a little advertising. The floor is the social network, and each person rises to the moment they adopted, so you can watch an idea spread and see who it reaches last, and why.
How it works
A scene is data, never code: the agent says what the thing is, and Construct decides how it looks. That split is what keeps every construct honest and in one style. In masterpiece mode the review becomes a loop, judged by a critic that never saw the authoring.
flowchart LR
A["you ask"] --> S["the agent writes<br/>a scene"]
S --> C["Construct<br/>checks it"]
C -- "problems, with fixes" --> S
C --> B["Construct builds<br/>construct.html"]
B --> R["the agent reviews<br/>its pictures"]
R -- "masterpiece: another round" --> K["the critic compares<br/>with the best so far"]
K -- "better: keep it" --> S
K -- "not better: keep the best" --> S
R --> D["you get the best version"]You can see how each part is known. Press P in any construct and every part is coloured by whether it is verified, supplied by you, inferred or decorative. Press S to see it as a solid, the way a modelling program or a print shows it.
The check runs to zero. Floating parts, claims without evidence and details too fine to see are reported, with fixes, before anything is built.
The critic is independent. It is a fresh model that compares each new version with the best so far without knowing which is which. Only a better version is kept.
Masterpiece stops when it stops improving: after two rounds without a better version, after 12 rounds, or after two hours. In the author's own blind comparisons, on two subjects, there was no visible improvement after about round 12, so more rounds mostly cost time.
The whole process, with a construct improving round by round, is in How a construct is made. What you see in a construct, and why models never choose its colours, is in The Measured Light style.
Install
Construct runs from a copy of this repository. There is nothing to install system-wide. Clone it and build the skills for your agent:
git clone https://github.com/rtmandreyev/construct.git
cd construct
python3 construct_hologram/package.py --out dist # builds the Claude Code and Hermes skillsThen add the skill to your agent, or use Construct directly:
Host | How to add it |
Claude Code |
|
Hermes, the plugin |
|
Hermes, the skill alone |
|
Any MCP client | Add |
Claude Desktop, the MCP server | Open the |
Any OpenAI-compatible model |
|
By hand | The command line below; no model needed |
Blender |
|
Quick start
In the Claude or ChatGPT app, no terminal. Download Construct, give the app its folder and your photos, and ask. The Claude app's Cowork and the ChatGPT app's Codex both read the skill and build the construct for you. Construct in the Claude or ChatGPT app →
In your agent, just ask in plain words: "a masterpiece of the Sydney Opera House", or "a masterpiece construct of my guitar from these photos". The agent does the rest and tells you what it is doing. The constructs at the top of this page were all made in masterpiece mode, rounds judged by a second, independent model: ask for it for anything you care about.
To try Construct without a model, fill in a ready-made template by hand:
C=construct_hologram/cli.py
python3 $C params book --variant paperback --output book.json # fill in the facts you know
python3 $C check book.json # audit: PASS, or paths and fix hints
python3 $C build book.json --out out # out/construct.html: open it in any browser
python3 $C review book.json --out out # out/review/*.png: stills to judge it byOnce a construct is open, drag to orbit and scroll to zoom. R replays the assembly, L shows the labels, T hides the text on its surfaces, P shows how each part is known, S shows it as a solid, and 1–6 move between views.
Modes
A mode sets how much effort goes into a construct. Say one in your request, or say nothing and the skill picks one and tells you why before it starts.
Mode | What it does | When it stops | Rough cost | Use it for |
fast | One pass with self-review | About 10 minutes (30 for a richer subject) | Cents with DeepSeek V4.1 Flash | Generic subjects, simple objects, quick requests |
masterpiece | Rounds judged by an independent critic, each version compared with the best so far | Two rounds without a win, 12 rounds, or 2 hours of active work | Up to 2 hours of frontier-model tokens | A named car, landmark or building whose likeness matters |
timeboxed | Masterpiece in 2 hours in all: the critic's time counts too | Two rounds without a win, 12 rounds, or 2 hours in all | Up to 2 hours, fewer rounds when the critic is slow | When you want masterpiece done within two hours |
unbounded | The same rounds, with no cap and no time limit | Only after two rounds without a win | Many rounds and hours, a high token cost | Only when you ask for it by name |
Masterpiece's two hours count only the agent's own work. The critic's turns come on top, so a run with a slow critic can take three hours or more. timeboxed stops at two hours in all. The skill never picks timeboxed or unbounded on its own, because the critic finds an improvement almost every round, so a run can go on for hours. Every round is reported, so you can stop it whenever you like.
Models
Any capable model can make a construct, but some subjects need a stronger one. From the evaluation runs:
Named subjects in masterpiece mode (a car model, a landmark): a Sol or Opus class model (tested: GPT-6.1 Sol, Claude Opus 5.5). A smaller model given such a subject says so and recommends them.
Simpler objects in fast mode: DeepSeek V4.1 Flash does as well as those on objects such as a tape deck, a watch or a camera (a toy xylophone with its own finish map: about nine minutes).
Worlds: placing and arranging works with any of the models above. A world from a picture in masterpiece mode is long work for a strong model: Rain Harbour and Stortorget were each about a day of GPT-6.1 Sol, every construct built by its own subagent. Say "fast" for one pass each. Worlds were also tested in Hermes Desktop with DeepSeek V4 Pro.
Small models (tested: MiniMax M3.1 Flash, Thinking Machines Inkling, NVIDIA Nemotron 3.5 Super VL) are not recommended: in about half of their runs they did not save a scene, and they made scale errors.
Requirements
Construct is deliberately small. You need:
Python 3.10 or newer. Nothing else to install: no packages, no virtual environment.
For review stills, a Chromium-family browser you already have (Chrome, Chromium, Edge, Brave).
For video, ffmpeg.
For the Blender add-on, Blender 4.2 or newer (the film of a run: checked in Blender 5.2); for the NetLogo bridge, NetLogo 6 or 7 (the extension: NetLogo 7, and NetLogo 3D 7).
For CAD, FreeCAD 1.0 or newer (STEP needs nothing more); for game engines, any glTF 2.0 importer (glued joints and worlds as game maps: tested in Godot 4.7). FBX and USD come through Blender.
For Hermes, the Construct plugin needs Hermes 0.22 or newer; a world from a picture in masterpiece mode needs
delegation.max_spawn_depth: 2in Hermes's config (an orchestrator subagent per construct).Tested on macOS; review capture on Linux and Windows is untested.
Documentation
If you want to… | read |
see everything new in 1.3, the worlds one by one | |
make a world, in Hermes or by hand, and the format | |
see how a world was made from one picture | |
use constructs and whole levels in a game | |
see everything new in 1.2, with examples | |
see everything new in 1.1, with examples | |
see how a construct is made, step by step | |
know what you are looking at, and the keys | |
run it every way, from a first construct by hand to Claude Code and Hermes | |
fix something that went wrong | |
start from a ready-made template (a book, a CD, a guitar, a car) | |
make mountains, routes and planets from real elevation data | |
turn a construct into a film with music | |
export a 3D model or a world, plain or finished from its own material map | 3D export and the Blender add-on |
print it, or make it a model kit | |
open it in CAD | |
put it in a game engine | |
draw a NetLogo model's run | |
teach with it, or show it in a museum | |
compare models, or score your own | |
build on it or test the code | |
write your own adapter (a format, an engine, a machine) | |
use it in Hermes, from the request to a printable kit | Villa Savoye in Hermes, step by step and Construct for Hermes |
design something new from real things (a ship, a creature, a vehicle) | |
design a physical product from a system's documentation | |
see how reconstructing, modifying and inventing are one pipeline | |
know where the method comes from | |
see what changed | CHANGELOG.md and the 1.3.0, 1.2.0, 1.1.0 and 1.0.0 release notes |
The full index is in docs/README.md.
Contributing
See CONTRIBUTING.md. Run the tests with
python3 -m unittest discover -s construct_hologram -t . -p 'test_*.py'. Security reports:
SECURITY.md.
License
Apache-2.0 — Copyright (c) 2026 Artyom Andreyev (see NOTICE); versions up to 0.3.0 were MIT. The NetLogo example folders
(examples/netlogo-*: viral marketing, flocking,
wolf sheep, fire, fireflies,
virus on a network and virus compare) derive from Uri
Wilensky's NetLogo models and are under CC BY-NC-SA 3.0 instead (see each LICENSE). The
Stortorget world, made from a CC BY-SA 4.0 photograph that it includes, is under CC BY-SA
4.0 (see its LICENSE). The Blender
add-on is under GPL-3.0-or-later, as Blender's extensions platform requires; what
you make with it is yours.
Construct's working method is inspired by Anatomy's truth-first construction (MIT); it shares the method, not code. Product, vehicle and place names in the examples belong to their owners: each example is an independent reconstruction from public references, not an official model. See NOTICE.
Available Tools
12 toolsconstruct_compileARead-onlyIdempotent
Compile a valid v2 scene or parameter document into construct-geometry v2 (or return its diagnostics). Artwork bytes are never read: slots carry asset ids and hashes only.
Inputs: document (required).
construct_diagnoseARead-onlyIdempotent
Check a v2 scene or parameter document (contract construct/0.2): every problem with a JSON path, a code and a fix hint, plus repair_text to send back to the model that wrote it. Give text (the model's raw answer) or document (parsed JSON).
Inputs: text, document.
construct_expand_paramsCRead-onlyIdempotent
The full v2 scene a valid parameter document builds (or its diagnostics when it is not valid).
Inputs: params (required).
construct_exportBRead-onlyIdempotent
A 3D model of a valid v2 scene or parameter document: glTF 2.0 (base64 .glb: named parts, materials by role, the open and idle animations, each vertex's build phase as _PHASE) or OBJ text with its MTL. Opens in Blender, Godot, Unreal, Unity (glTFast) and three.js.
Inputs: document (required), pose, wire, frame, +6 more.
construct_limitsBRead-onlyIdempotent
The limits of a mode (fast, masterpiece, timeboxed, unbounded) or tier (wall clock, check and review rounds, research counts) with any overrides applied, for the host to enforce: aim for genuinely good, stop at the first limit. Overrides can raise a limit, never remove it. Also reads 'mode:'/'tier:'/'research:' from a request.
Inputs: tier, request, overrides.
construct_netlogo_drawBRead-onlyIdempotent
A construct of a recorded NetLogo run (the JSON Lines a run writes), computed from the data alone, with its legend, how-to-read lines, replay clock and counts, and a data lock. Views: space-time (moving agents), network-time (spreading on a network; give state), phase (two reporters in a cycle), field (spreading over patches), pulse (turtles switching a state on and off: how many at once, tick by tick), auto (the one the data suits). Moving agents and pulses are drawn over the window where their order formed when it forms early (window: auto, whole, or a tick). Optional: an art-direction layer (art: views, labels, milestones; never the data), solid (spheres, tubes, a surface, for a 3D model) and materials (the run's own colours, for construct_export). Compile or export the scene with the other tools.
Inputs: view (required), recording (required), x, z, +14 more.
construct_netlogo_instrumentARead-onlyIdempotent
A NetLogo 7 model (.nlogox text) that records its run for Construct: the recorder included, set up after setup's reset-ticks and recording after go's tick (or the model's own buttons; a model that never ticks records by steps). Returns the model, a headless BehaviorSpace experiment and the recorder (construct.nls) to save beside it; run it in NetLogo, then draw run.jsonl with construct_netlogo_draw. NetLogo models in the library keep their own licence.
Inputs: model (required), title (required), go, seed, +7 more.
construct_params_templateBRead-onlyIdempotent
A parameter document to fill in for an archetype (case, book, object, vessel) and variant: the simple path for models that struggle with full scenes. Without arguments: every archetype.
Inputs: variant, archetype.
construct_printARead-onlyIdempotent
One watertight body of a valid v2 scene or parameter document, to 3D print: 3MF (default) or binary STL, base64, in millimetres, Z up, on the bed; with the checks (watertight, separate pieces, fits the bed, overhangs that need supports, what was thickened) and the scale.
Inputs: document (required), fit, join, size, +8 more.
hologram_compileBRead-onlyIdempotent
Compile a tessera-hologram sheet into tessera-geometry.
Inputs: sheet (required).
hologram_templateCRead-onlyIdempotent
Return a synthetic starter tessera-hologram sheet for a kind.
Inputs: kind (required), title.
hologram_validateCRead-onlyIdempotent
Validate a tessera-hologram sheet; returns error list.
Inputs: sheet (required).
Tool Schema Changelog
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
Loading tool schema changelog…
TDQS
Scored across 12 tools
The two families are conceptually separate (hologram/legacy vs construct/v2), but within them the boundaries blur: hologram_validate vs construct_diagnose vs hologram_compile vs construct_compile all sound like 'check or compile a document', and construct_compile explicitly also returns diagnostics. Dense jargon (tessera-hologram, v2 scene, parameter document, construct-geometry v2) forces the agent to infer which artifact each tool accepts, which invites misselection.
Almost every name is prefix_verb or prefix_verb_noun (hologram_validate, construct_compile, construct_diagnose, construct_export, construct_print, construct_netlogo_draw). The deviations are the two *_template noun-final names (hologram_template, construct_params_template) and the compound verbs expand_params/netlogo_instrument, but the pattern remains readable.
Twelve tools is well within the comfortable range and each maps to a distinct pipeline stage (template, validate/diagnose, compile, export, print, netlogo instrument/draw, limits). No tool looks like filler.
The surface covers a coherent lifecycle: scaffold a document, check it, compile it, then export to glTF/OBJ or printable 3MF/STL, plus a NetLogo data-visualization branch and a limits query. Gaps are minor — the hologram family has no export/print counterpart, and there's no tool to enumerate archetypes/variants or preview a construct other than via export.
Maintenance
Related MCP Connectors
Parametric 3D CAD for AI agents: build print-ready parts, check them, export STL, 3MF or STEP.
Text-to-CAD: build exact STEP or 3MF/STL on the server, each stated requirement measured.
A browser 3D CAD for your AI: it scripts real-size models, uCAD builds them and returns pictures.
Browser CAD for AI: model parts, add joints, export STEP or STL, or robots as URDF, SDF and MJCF
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