e5f04ee6c3
Create 4-Infrastructure/lib/ with canonical implementations of:
- hashing.py: sha256_bytes, sha256_text, sha256_file
- q16.py: Q16_16 fixed-point constants and arithmetic
- jsonl.py: load_json, load_jsonl, write_jsonl, stable_json, canonical_json_bytes
- fraction_utils.py: Fraction serialization helpers for hardware probes
Refactor 66 files across 4-Infrastructure/{hardware,shim,infra} and
5-Applications/{scripts,tools-scripts,hutter_prize,text-to-cad} to import
from the shared library instead of maintaining local copies.
4-Infrastructure/auto/lib/q16.py now re-exports from lib.q16.
Net: -743 lines (490 added, 1233 removed)
Build: not applicable (Python-only change, py_compile verified on all 71 files)
Co-Authored-By: Allaun Silverfox <bigdataiscoming+9i37y6j2@protonmail.com>
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| .. | ||
| agents | ||
| assets | ||
| references | ||
| scripts | ||
| README.md | ||
| requirements.txt | ||
| SKILL.md | ||
CAD Skill
A skill to precisely generate, edit and validate CAD files. Export to STEP, STL, GLB, DXF and more.
The CAD skill operates on explicit source files and imported STEP/STP files. It does not assume a project root or directory layout, so it can be used inside this harness, in the standalone cad-skill repo, or in another project that provides the required Python environment.
What It Can Do
- Regenerate part STEP outputs from Python
gen_step()sources. - Regenerate assembly STEP outputs from Python
gen_step()sources. - Package direct STEP/STP files with viewer-ready GLB and topology artifacts.
- Export STL meshes from generated or imported CAD targets.
- Regenerate DXF sidecars from Python
gen_dxf()sources. - Inspect stable
@cad[...]prompt references and report geometry facts. - Render review snapshots for quick visual checks.
Commands
Run commands from the project that owns the target files:
python <cad-skill>/scripts/gen_step_part path/to/part.py
python <cad-skill>/scripts/gen_step_assembly path/to/assembly.py --summary
python <cad-skill>/scripts/gen_dxf path/to/drawing.py
python <cad-skill>/scripts/cadref inspect '@cad[path/to/entry]' --json
python <cad-skill>/scripts/snapshot path/to/part.py --view isometric --out /tmp/cad-review.png
Install the skill runtime dependencies from requirements.txt when the active Python environment does not already provide them.
Project Harness
The text-to-cad harness is a convenient way to manage projects that use this skill. It provides a models/ layout, a local viewer, prompt-reference UX, and root setup commands that install the bundled skill dependencies.
For agent-facing workflow rules, use SKILL.md.