kernelcad-design-loop SKILL.md skillA
kernelcad-design-loop 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-design-loop@git:20261013.a656260Pins git:20261013.a656260 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- w1ne/kernelcad-web
- Path
plugins/kernelcad/skills/kernelcad-design-loop/SKILL.md- Versions recorded
- 1
- Latest version
- git:20261013.a656260, committed Oct 13, 2026
- Size
- 1,839 bytes
- Repository stars
- 33
- License
- MIT
Build or revise a CAD model with the hosted kernelCAD MCP — write .kcad.ts source, evaluate, review with design_loop until green. Use for any "design / model / make a part" request when the kernelcad MCP server is connected.
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 design loop (hosted MCP)
The `kernelcad` MCP server (https://mcp.kernelcad.com/mcp) runs the OpenCASCADE
kernel for you. Nothing needs to be installed locally. Discover the live tool
list from the server; tool availability depends on whether the user is signed in.
## Loop
1. Check for a canonical pattern first: `lookup_cookbook({ query })`
(see the `kernelcad-cookbooks` skill). Start from a hit when one exists.
2. Write `.kcad.ts` source. Use `lookup_api({})` for the API surface instead of guessing.
3. Iterate fast with `evaluate_script({ code, dryRun: true })`, then finish with a
full `evaluate_script({ code })`. A dry run is not evidence that the solid builds.
4. For housings, mechanisms, gearboxes, robot arms and other production builds,
call `design_loop({ goal, attempts: [{ code }] })`. Apply its
`nextActionPrompt` / `revisionAssist` patches and repeat until `ok: true`
or `convergence.escalate` says to stop and ask the user.
5. On failure, `why_did_this_fail({ code })` then `repair_script({ code })`.
`lookup_diagnostics({})` explains any diagnostic code.
6. Show the result once with `open_in_studio` (see `kernelcad-studio-paint`),
…Read the whole file at its exact version.
How to install
mdr add w1ne/kernelcad-web/kernelcad-design-loop@sha256:1c991dc780c4ba5aThe line at the top of this page pins the label git:20261013.a656260, 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_ognqyoewjvdurdmx)
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Versions
The registry has recorded 1 version of this file, committed on Oct 13, 2026.
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 (1839 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_ognqyoewjvdurdmx GET https://markdownregistry.com/api/v1/resolve?ref=w1ne/kernelcad-web/kernelcad-design-loop GET https://markdownregistry.com/api/v1/blob/1c991dc780c4ba5afdc8a3b355b7544512d1019b0d0b3d81f8e7905849af0437
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.