CLASSIFICATION: PUBLIC LICENCE: © JG SYSTEMS CONSULTING LTD DOC-ID: JGSC-WEB-001 REV 0.1.0
§ 00 - JGSC LABS

Open-source SysML and AI tooling.

This is the open-source and product arm of JG Systems Consulting Ltd. We build local-first tooling that brings AI agents to real engineering models: SysML v1 MCP bridges for CATIA Magic, vetted systems-engineering knowledge packs, and skills for Claude Code, with nothing sent to the cloud.

Looking for consulting? Systems architecture and MBSE engagements live on the main site at www.jgsystemsconsulting.com. Everything below is free to use unless marked otherwise.

Products → Consulting →

§ 01 - PRODUCTS

Products

jgs-voiceflow

free

On-device push-to-talk voice dictation for Windows, with a code mode for dictating to AI coding assistants. Local-first, private, free to use.

Open → Source →

jgs-magic-sysmlv1-mcp

free

Bring Claude Code and any MCP agent to your live SysML v1 models in CATIA Magic: 130+ tools to query, audit, and edit the real model over a local, air-gapped connection.

Open → Source →

jgs-magic-sysmlv1-pro

pro

Licensed pro-extension JAR for the JGS SysML v1 MCP bridge. Unlocks write-tier and pro model tools for AI agents in CATIA Magic.

Open → Source → License →

jgs-se-knowledge-packs

free

46 agent knowledge packs distilling vetted, licence-clean systems-engineering standards (NASA, DoD, FAA, NIST, GAO, SEBoK) into on-demand Claude skills.

Open → Source →

jgs-reference-skill

free

Convert vetted authoritative sources into licence-clean, citable knowledge packs, vetting the licence first, refuses non-redistributable sources.

Open → Source →

jgs-goal-spec

free

Turn a rough idea into a hardened engineering spec: goal-formatter to goal-spec to spec-review. Tool-agnostic Claude Code skills.

Open → Source →

jgs-magic-sysmlv1-read-skills

free

Read-only SysML v1 model analysis skills for CATIA Magic: navigate, inspect, audit, report. Free to use, works with Claude Code and other agents.

Open → Source →

Coming soon

jgs-magic-sysmlv2-mcp

coming soon · free

SysML v2 MCP bridge for CATIA Magic / MSOSA. Brings Claude Code and any MCP agent to your live SysML v2 models, local and air-gapped, just like the v1 bridge.

jgs-magic-sysmlv2-pro

coming soon · pro

Licensed pro-extension JAR for the SysML v2 bridge. Unlocks write-tier and pro model tools for AI agents in CATIA Magic.

jgs-magic-sysmlv2-pro-skills

coming soon · pro

Pro skills pack for SysML v2 work in CATIA Magic, the v2 companion to the read skills shipping for v1.

jgs-magic-grid

coming soon

Magic Grid skills pack for CATIA Magic: build and maintain MagicGrid-structured SysML systems with AI agents.

jgs-sparx-mcp-core

coming soon · free

Python MCP bridge for Sparx Enterprise Architect. Connect Claude Code and any MCP agent to your live EA models over local COM: navigate, inspect, author, search. Free generic core.

jgs-sparx-mcp-sysmlv1

coming soon · pro

SysML v1 framework plugin for the Sparx EA bridge. Encodes SysML vocabulary, valid element and relation types, and validation so agents author semantically correct models.

jgs-sparx-mcp-archimate

coming soon · pro

ArchiMate 3.2 framework plugin for the Sparx EA bridge. Validates relation types and applies correct stereotypes so agents build correct ArchiMate models in Enterprise Architect.

jgs-sparx-mcp-naf4

coming soon · pro

NAF v4 framework plugin for the Sparx EA bridge. AI-assisted authoring of NATO Architecture Framework views for defence programmes, with framework-correct elements and validation.

jgs-sparx-mcp-uaf

coming soon · pro

UAF framework plugin for the Sparx EA bridge. AI-assisted authoring of Unified Architecture Framework models in Enterprise Architect, air-gapped for defence and government work.

§ 02 - ABOUT

About

JG Systems Consulting Ltd is an independent systems architecture and MBSE consultancy. JGSC Labs is where we open-source the tooling we build for our own client work: bridges that connect AI agents to live SysML models in CATIA Magic, vetted systems-engineering knowledge packs, and focused skills for Claude Code.

Everything here is built to run where engineering work actually happens, behind the firewall and on real models, not demos. The tools are local-first and air-gapped by default: your models and data never leave your machine. Most are free; a few are licensed. All of them come from a working MBSE practice, not a lab.

Contact

Products and open source: support@jgsystemsconsulting.com
Consulting enquiries: www.jgsystemsconsulting.com
Source: github.com/jgsystemsconsulting