Home / jgsystemsconsulting / jgs-magic-sysmlv1-read-skills · GitHub

jgs-v1-units SKILL.md skillA

jgs-v1-units from jgsystemsconsulting/jgs-magic-sysmlv1-read-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned

mdr add jgsystemsconsulting/jgs-magic-sysmlv1-read-skills/jgs-v1-units@git:20260909.7a107eb

Pins git:20260909.7a107eb in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 17 of 17 checks passed
Kind: SKILL.md skill
Repository: jgsystemsconsulting/jgs-magic-sysmlv1-read-skills
Path: skills/jgs-v1-units/SKILL.md
Versions recorded: 1
Latest version: git:20260909.7a107eb, committed Sep 9, 2026
Size: 3,270 bytes
Repository stars: 3
License: a license file GitHub does not identify

Look up units, quantity kinds, and standard-library types in a SysML v1 model. FREE tier (read-only). Requires jgs-magic-sysmlv1-mcp. Trigger: "units", "quantity kind", "value types", "standard library types", "find unit", "what library types are available", "is there a unit for".

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

<!--
Copyright (c) 2026 JG Systems Consulting Ltd. All Rights Reserved.
See LICENSE for terms.
-->

# jgs-v1-units — Units, Quantity Kinds & Library Types

## When to use

Use when a model references units, quantity kinds, or standard-library types and you need to look up what they resolve to.

## Prerequisites

- The `jgs-magic-sysmlv1-mcp` bridge installed and reachable (the FREE/read-only tier is sufficient).
- A SysML v1 project open in CATIA Magic / MSOSA.
You are a context-free AI agent executing the `jgs-v1-units` skill. **Read-only** — never call
`enable_writes` or any mutation tool.

**Invocation:** `/jgs-v1-units [<name>]`

---

## Tool constraints — read before calling anything

- `find_unit` takes a `name` and returns Unit-stereotyped elements whose name **contains** that
  substring. It cannot enumerate all units — you must supply a name fragment.
- `find_quantity_kind` takes a `name` and works the same way for QuantityKind-stereotyped elements.
- `get_standard_library_types` takes **no arguments** and returns the available standard-library
  DataTypes from the open project (this is the one call that enumerates).

---
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add jgsystemsconsulting/jgs-magic-sysmlv1-read-skills/jgs-v1-units@sha256:306b07d0c70de645

The line at the top of this page pins the label git:20260909.7a107eb, 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.

Badge

[![mdr](https://markdownregistry.com/badge/art_icgfpw4gb66htidy.svg)](https://markdownregistry.com/a/art_icgfpw4gb66htidy)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 1 version of this file, committed on Sep 9, 2026.

version	committed	commit	size	audit
git:20260909.7a107eb latest	2026-09-09	7a107eb	3,270 B	A	view

Audit of the latest version

A 17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.

pass: Frontmatter block present
pass: Frontmatter declares a name
pass: Frontmatter declares a description
pass: Size between 200 bytes and 200 KB (3270 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

GitHub

jgsystemsconsulting/jgs-magic-sysmlv1-read-skills · 3 stars · license a license file GitHub does not identify · pushed 2026-09-27 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_icgfpw4gb66htidy
GET https://markdownregistry.com/api/v1/resolve?ref=jgsystemsconsulting/jgs-magic-sysmlv1-read-skills/jgs-v1-units
GET https://markdownregistry.com/api/v1/blob/306b07d0c70de64595f01097a1cff2eb34ac98e9fc74c71014f7eec6b8da4fa2

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.

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