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A skills library for CAD, robotics, and hardware design agents

Docs | Demo

CAD Skills

CAD Skills is a library of agent skills for generating, inspecting, sourcing, slicing, and handing off CAD and robot-description artifacts from local project files.

🧰 Skills

Install the library to give agents focused workflows for CAD, fabrication, robot description files, simulation, and local review.

💻 Installation

For production use, install or clone from main; that branch contains the generated skill/plugin outputs needed by provider installers.

Skills

Install CAD Skills with the Skills CLI:

npx skills install earthtojake/text-to-cad

This is the preferred installation path. It installs the individual skills directly for supported agents.

Plugins

Provider-native plugin installs are also available for Codex and Claude Code:

# Codex
codex plugin marketplace add earthtojake/text-to-cad
codex plugin add cad@text-to-cad

# Claude Code
claude plugin marketplace add earthtojake/text-to-cad
claude plugin install cad@text-to-cad

Restart your agent if newly installed skills do not appear. For local development, branch from develop, open PRs against develop, and use the symlink workflow in CONTRIBUTING.md.

📸 Screenshots

CAD

URDF

SRDF / MoveIt2

🧪 Benchmarks

The repo stores heavyweight assets in assets/** and benchmarks/** through Git LFS and excludes those trees from default LFS pulls so lightweight clones do not fetch GIF assets. Benchmark markdown remains normal Git for readable diffs. To hydrate only the benchmark assets locally, run:

git lfs pull --include="benchmarks/**"

#	Target	Prompt	Output
1	Rectangular calibration block with four holes	Create a centered 100 x 60 x 20 mm block with four 8 mm vertical through-holes. Add only a 2 mm chamfer on the top outer perimeter.
2	Circular flange with bolt-hole pattern	Create an 80 mm diameter, 10 mm thick circular flange with a 30 mm central through-bore. Add six 6 mm through-holes on a 60 mm bolt circle and fillet the outside circular edges.
3	L-bracket with gussets and two hole directions	Create an L-bracket from a base plate and rear vertical plate. Add vertical base holes, horizontal back-plate holes, two triangular gussets, and a filleted base/back transition.
4	Stepped shaft with keyway	Create a 120 mm shaft along X with 20/30/20 mm diameter stepped sections. Add end chamfers and a shallow rectangular keyway on top of the middle section.
5	Open-top electronics enclosure with bosses	Create a hollow open-top enclosure with 3 mm walls and floor. Add four internal standoffs with centered blind holes and 2 mm outside vertical corner fillets.
6	Aerospace-style clevis bracket with lightening cutouts	Create a symmetric clevis bracket with a base plate, two rounded lugs, base mounting holes, and a horizontal lug bore. Add triangular lightening cutouts, reinforcing ribs, and rounded transitions.
7	Radial-engine-style cylinder with cooling fins	Create a vertical engine-cylinder form with a central barrel, 12 cooling fins, a base flange, and a top cap. Add a 35 degree angled spark-plug boss with a coaxial through-hole.
8	Centrifugal impeller with backward-curved blades	Create a centrifugal impeller with a backplate, hub, and through-bore. Add 12 fused backward-curved blades sweeping about 45 degrees from root to tip.
9	Spiral staircase with helical handrail	Create a miniature spiral staircase with a central column, base disk, and 20 rising wedge treads. Add a one-revolution helical handrail and vertical balusters at the tread outer ends.
10	Simplified planetary gear stage	Create a flat planetary gear assembly with separate sun, planet, ring, carrier, and pin bodies. Use simplified trapezoidal teeth and place three planets around the sun on a 42 mm radius circle.

🛠️ Contributing

Development happens from the develop branch; open PRs against develop, not main. For local contribution workflow, skill linking, and validation guidance, see CONTRIBUTING.md.