kernelcad-kinematic SKILL.md skillA
kernelcad-kinematic from w1ne/kernelcad-web is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add w1ne/kernelcad-web/kernelcad-kinematic@git:20261017.11a39f6Pins git:20261017.11a39f6 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- w1ne/kernelcad-web
- Path
src/agent/skills/kernelcad-kinematic/SKILL.md- Versions recorded
- 12
- Latest version
- git:20261017.11a39f6, committed Oct 17, 2026
- First version recorded
- Jun 23, 2026
- Size
- 22,048 bytes
- Repository stars
- 33
- License
- MIT
Use when verifying whether a moving assembly is buildable — sampled-pose collision sweeps across joint ranges, IK reachability for end-effector targets, mounting-hole fastener consistency, and static-load capacity on cantilever-shaped parts. Loads alongside kernelcad-authoring to gate design-time mechanism feasibility.
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
# kernelcad-kinematic — feasibility gates for moving assemblies
## Units (read this first)
Joint angles throughout the kinematic API are **degrees for revolute joints**
and **millimetres for prismatic joints**. This matches the unit convention
used by `arm.mate(..., 'revolute', { limitsDeg })`, `arm.mate(..., 'prismatic', { limitsMm })`,
and `arm.solvedModel({poses})` — there is no degree-vs-radian split anywhere
on the user-facing surface.
That includes the IK seed: `kinematic.checkReachable({ seed: { shoulder: 60 } })`
means 60 degrees, not 60 radians and not 60 of anything else. Authors porting
code from URDF / MoveIt / ROS — where radians are conventional — must convert
(`deg = rad * 180 / Math.PI`) before passing values to this API.
A small seed value like `0.3` is interpreted as 0.3°, which is effectively
zero — fine as a "near rest pose" hint, but not the ~17° you'd get if you
were thinking in radians.
## When to load
Load this skill whenever the user asks any of:
- "Will this arm hit itself?" / "Does this mechanism clear across its motion?"
- "Can this robot reach this point?" / "Is this target in the workspace?"
…Read the whole file at its exact version.
How to install
mdr add w1ne/kernelcad-web/kernelcad-kinematic@sha256:e209bb0ccb00d870The line at the top of this page pins the label git:20261017.11a39f6, 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_usmamsdqlwvaxlc5)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 12 versions of this file, between Jun 23, 2026 and Oct 17, 2026, about one every 11 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261017.11a39f6 latest | 2026-10-17 | 11a39f6 | 22,048 B | A | view · diff |
| git:20261017.6b62576 | 2026-10-17 | 6b62576 | 21,709 B | A | view · diff |
| git:20261017.fb61fb6 | 2026-10-17 | fb61fb6 | 21,687 B | A | view · diff |
| git:20261015.acafc87 | 2026-10-15 | acafc87 | 20,547 B | A | view · diff |
| git:20261015.2ce8d2b | 2026-10-15 | 2ce8d2b | 20,488 B | A | view · diff |
| git:20261008.13091b2 | 2026-10-08 | 13091b2 | 20,157 B | A | view · diff |
| git:20260930.8f677e5 | 2026-09-30 | 8f677e5 | 20,146 B | A | view · diff |
| git:20260915.c72f24f | 2026-09-15 | c72f24f | 19,842 B | A | view · diff |
| git:20260914.4ad03b2 | 2026-09-14 | 4ad03b2 | 20,048 B | A | view · diff |
| git:20260708.299a322 | 2026-07-08 | 299a322 | 16,153 B | A | view · diff |
| git:20260624.65d9d78 | 2026-06-24 | 65d9d78 | 16,088 B | A | view · diff |
| git:20260623.3ee952d | 2026-06-23 | 3ee952d | 16,051 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 (22048 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
w1ne/kernelcad-web · 33 stars · license MIT · pushed 2026-10-21 · branch develop
API
GET https://markdownregistry.com/api/v1/artifacts/art_usmamsdqlwvaxlc5 GET https://markdownregistry.com/api/v1/resolve?ref=w1ne/kernelcad-web/kernelcad-kinematic GET https://markdownregistry.com/api/v1/blob/e209bb0ccb00d870cf868028306f9b6a5d995d13fe88693d327e7cb6162702db
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.