Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add MeltFlexDevs/techdrawai-skills --skill techdrawai-cadgit clone --depth 1 https://github.com/MeltFlexDevs/techdrawai-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/meltflexdevs/techdrawai-skills/techdrawai-cad)<a href="https://agentmods.dev/skills/meltflexdevs/techdrawai-skills/techdrawai-cad"><img src="https://agentmods.dev/badge/skills/meltflexdevs/techdrawai-skills/techdrawai-cad.svg" alt="Measured on agentmods" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00110 | $0.01300 |
| Opus 5 | $0.00055 | $0.00650 |
| Sonnet 5 | $0.00022 | $0.00260 |
| Haiku 4.5 | $0.00011 | $0.00130 |
Grade A, and why
techdrawai-cad scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 7d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 70 lines — stays where its author put it; the contents beside it link to each section on GitHub.
TechDraw AI: CAD files, 3D models and renders
Everything downstream of a drawing. If the user needs the drawing itself first, use the techdrawai-drafting skill and come back here with what it wrote.
Setup (once)
npx -y techdrawai-mcp auth login # browser sign-in, no key to copy
Requires an active Studio plan. If a tool reports a plan error, say so plainly and point at https://techdrawai.com/app?view=subscription rather than retrying. Keys can also be created in Settings and passed as TECHDRAWAI_API_KEY.
Tools
image_to_dxf
Any raster image becomes real CAD vector contours in a DXF file. Free.
image(required): a generated drawing, a scan, a sketch, a logo, a photo of a flat part.width_mm: pass this whenever the real size is known. Without it the geometry arrives at one DXF unit per pixel and the user has to rescale by hand in CAD, which is exactly the annoying step they came here to avoid.threshold:"auto"(default) or a number 0 to 255 to force the ink and paper cut-off.invert: for light lines on a dark background.smoothing: 1 keeps detail, higher smooths the contours.dwg: also write AutoCAD's native.dwgbeside the.dxf.output_path: defaults to./techdrawai-output/.
The DXF is ASCII R2000 and opens in AutoCAD, Fusion 360, SolidWorks, Onshape, FreeCAD, LibreCAD, Rhino, Inkscape and the common laser and CNC tools such as LightBurn.
photo_to_3d
A photo of one object becomes a textured 3D mesh. 3 credits, Studio plan. Takes one to three minutes and the call blocks until the mesh is ready, so tell the user it is running rather than leaving them watching a stalled prompt.
image(required): a clear JPG or PNG of a single object.detail:draft(12k triangles),standard(40k, default),high(80k).textured: defaults to true. Turn it off when the user only wants geometry.output_path: the GLB lands here; FBX, OBJ, USDZ and STL links are reported too.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 7d ago First seen · 70 lines · 110 tokens per session scan A 678ded2c3a5e
techdrawai-cad is a skill published in the GitHub repository MeltFlexDevs/techdrawai-skills (1 stars, last pushed 1mo ago), licensed MIT. It adds 110 tokens to every session and 1,300 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other skills, from other repositories
qcad
Use when editing DXF files with a professional open-source 2D CAD application — CAM output, part libraries, isometric projection. QCAD: open-source 2D CAD with DXF as native format, scriptable via ECMAScript.
solvespace
Use when doing lightweight parametric 2D/3D CAD with constraint-based sketching — linkages, section analysis, STL export for 3D printing. SolveSpace: ultra-light parametric constraint solver CAD with real-time solving.
basic-part
Create a simple, fully dimensioned solid part using parameters, common features, inspect, preview, and export an authoritative CAD artefact.
kompas-mcp-operator
Operate KOMPAS-3D MCP for 2D drawings, 3D parts, CAD-as-Code scripts, screenshots, exports, runtime memory, remote/local recovery, and Graph Brain diagnostics. Use when Codex needs to create, edit, inspect, validate, or debug geometry through mcpkompas3d, especially for sketch-feature chains, reusable scenarios…
dxf
Generate, regenerate, and validate 2D DXF drawings from Python build123d sources. Use for DXF files, .py drawing scripts, @dxf models, 2D profiles, outlines, templates, gaskets, panels, flat patterns, laser/plasma/waterjet cut layouts, and 2D drawing exports of CAD geometry.
smui
Local copy of the smui ("spacemolt") design system ( ), adapted for the CAD Viewer. smui is a Nord-inspired terminal aesthetic for shadcn/ui with light and dark modes: sharp edges, monospace everything. Read this whole document before restyling viewer UI.