add-interfaces SKILL.md skillA
add-interfaces 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/add-interfaces@git:20261024.6286b60Pins git:20261024.6286b60 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/add-interfaces/SKILL.md- Versions recorded
- 6
- Latest version
- git:20261024.6286b60, committed Oct 24, 2026
- First version recorded
- Aug 5, 2026
- Size
- 14,579 bytes
- Repository stars
- 528
- License
- Apache-2.0
Enrich an existing PartCAD part with connection interfaces and ports (mating metadata) so it can be mated to other parts automatically. Use for /pc:add-interfaces or when the user asks to add interfaces, ports, connectors, or mating information to a part, or to make parts snap/connect/assemble together.
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:add-interfaces Add **interfaces**, **ports**, and **`implements:`** metadata to an existing PartCAD part so PartCAD can mate it to other parts by connection rather than by hand-placed coordinates. The text after the command (`$ARGUMENTS`) names the target part (and, optionally, how it is meant to connect). *You* decide the interface types and the exact port coordinates by examining the geometry, and you prove they are right twice: by drawing them on the part itself (`pc render --with-all`, step 4) and by mating two instances in a throwaway assembly and rendering that (step 5). Hard requirement: the enriched part **passes `pc test`** and the validation assembly renders **correctly connected**. Interfaces are the reusable half of this: define the connector once, then every part that has that feature `implements:` it, and any two compatible parts mate. Reference: `docs/source/configuration.rst` (the "Interfaces" and "Parts" sections) and the `feature_interface` example (`connect-interfaces.assy`). ## 1. Resolve the part and how it connects `$ARGUMENTS` is the object name (a part by default). Read its …
Read the whole file at its exact version.
How to install
mdr add partcad/partcad/add-interfaces@sha256:bead9488e7520565The line at the top of this page pins the label git:20261024.6286b60, 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_4o5g7pcr3jejmyki)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 6 versions of this file, between Aug 5, 2026 and Oct 24, 2026, about one every 16 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261024.6286b60 latest | 2026-10-24 | 6286b60 | 14,579 B | A | view · diff |
| git:20261017.a1c5bc8 | 2026-10-17 | a1c5bc8 | 14,585 B | A | view · diff |
| git:20261012.9aa6cf0 | 2026-10-12 | 9aa6cf0 | 13,898 B | A | view · diff |
| git:20261008.9f2d5f9 | 2026-10-08 | 9f2d5f9 | 13,158 B | A | view · diff |
| git:20260831.72e90c9 | 2026-08-31 | 72e90c9 | 13,157 B | A | view · diff |
| git:20260805.4783ae7 | 2026-08-05 | 4783ae7 | 9,053 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 (14579 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_4o5g7pcr3jejmyki GET https://markdownregistry.com/api/v1/resolve?ref=partcad/partcad/add-interfaces GET https://markdownregistry.com/api/v1/blob/bead9488e752056545824080331be97c3465aa18e531579b56abb14d020c1f28
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.