gen-part SKILL.md skillA
gen-part from partcad/partcad is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add partcad/partcad/gen-part@git:20261107.261a936Pins git:20261107.261a936 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- partcad/partcad
- Path
ai-agents/common/skills/gen-part/SKILL.md- Versions recorded
- 15
- Latest version
- git:20261107.261a936, committed Nov 7, 2026
- First version recorded
- Jul 28, 2026
- Size
- 25,864 bytes
- Repository stars
- 528
- License
- Apache-2.0
Generate a PartCAD part from a natural-language description (and optional reference images, drawings, 3D files or requirements) by writing down what it is required to be, settling its dimensions on temporary sketches that /pc:gen-sketch measures and validates, authoring a CAD script (or extruding a validated sketch), and validating it with the PartCAD CLI - including measuring the same dimensions again on the part's own projections. Use for /pc:gen-part or when the user asks to generate…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# pc:gen-part Generate one PartCAD **part**. The text after the command (`$ARGUMENTS`) is the part description — what to build. *You* author the CAD script yourself and prove it works with the PartCAD CLI; do not use any built-in `ai-*` part type or generation pipeline. Hard requirement: the finished part **passes `pc test`** (its geometry instantiates cleanly). Steps 4–7 are the reference flow — the shape the legacy `pc add part --ai` pipeline used (plan geometry → write script → validate → compare → refine), with the dimensions settled first and measured last: settle the dimensions on sketches → plan → write the script → validate → measure and compare → refine. Treat it as a strong default, not a script: skip, reorder, or replace steps as the part warrants, but always finish by validating, and never let a stated or shown dimension reach the model without having been measured. ## 1. Understand the request - `$ARGUMENTS` is the description. Read it and any `requirements`, and view reference images directly. Ask the user to clarify only genuinely load-bearing ambiguities; otherwise proceed and state your assumptions. - Work in millimeters and degrees unless told otherwise. …
Read the whole file at its exact version.
How to install
mdr add partcad/partcad/gen-part@sha256:e9c4462eeee65423The line at the top of this page pins the label git:20261107.261a936, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_amlx5wjemxzbv7xy)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 15 versions of this file, between Jul 28, 2026 and Nov 7, 2026, about one every 7 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261107.261a936 latest | 2026-11-07 | 261a936 | 25,864 B | A | view · diff |
| git:20261107.797cc42 | 2026-11-07 | 797cc42 | 25,453 B | A | view · diff |
| git:20261102.33de722 | 2026-11-02 | 33de722 | 22,466 B | A | view · diff |
| git:20261102.ef2be30 | 2026-11-02 | ef2be30 | 21,456 B | A | view · diff |
| git:20261101.28138ba | 2026-11-01 | 28138ba | 15,802 B | A | view · diff |
| git:20261014.8f07d63 | 2026-10-14 | 8f07d63 | 13,411 B | A | view · diff |
| git:20261013.ce7c6cc | 2026-10-13 | ce7c6cc | 13,331 B | A | view · diff |
| git:20261012.9aa6cf0 | 2026-10-12 | 9aa6cf0 | 10,117 B | A | view · diff |
| git:20261008.9f2d5f9 | 2026-10-08 | 9f2d5f9 | 7,718 B | A | view · diff |
| git:20260920.5021afb | 2026-09-20 | 5021afb | 7,717 B | A | view · diff |
| git:20260912.87ca044 | 2026-09-12 | 87ca044 | 7,351 B | A | view · diff |
| git:20260901.0372b3a | 2026-09-01 | 0372b3a | 6,599 B | A | view · diff |
| git:20260831.e2f48aa | 2026-08-31 | e2f48aa | 6,601 B | A | view · diff |
| git:20260831.72e90c9 | 2026-08-31 | 72e90c9 | 4,514 B | A | view · diff |
| git:20260728.137ff5b | 2026-07-28 | 137ff5b | 4,101 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (25864 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
partcad/partcad · 528 stars · license Apache-2.0 · pushed 2026-11-08 · branch devel
API
GET https://markdownregistry.com/api/v1/artifacts/art_amlx5wjemxzbv7xy GET https://markdownregistry.com/api/v1/resolve?ref=partcad/partcad/gen-part GET https://markdownregistry.com/api/v1/blob/e9c4462eeee65423c730c8602736811cc6146c647aa603c2af5289b6b9b2c2ea
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.