Read-only by design
Every skill calls the FREE tier of the bridge. No writes, ever. Your model is never modified.
JG Systems Consulting Ltd. · CATIA Magic MCP
Understand any SysML v1 model in minutes, for free.
Inherited a sprawling SysML v1 model and no idea where to start? Point your AI agent at it.
These 17 free, read-only skills navigate, inspect, search, audit,
and report on live SysML v1 models in CATIA Magic, driven by one command, /jgs-v1,
in plain English. No licence key. No cloud. Because every skill is read-only, they can
never change your model.
§01 · What it is
A bundle of focused Claude Code skills that read your model through the jgs-magic-sysmlv1-mcp bridge, locally, with nothing sent anywhere. It is the zero-risk way to put AI to work on real MBSE: try it on your toughest model and see what it finds before you commit to anything.
You need the free bridge first. These skills are the read-only layer on top of jgs-magic-sysmlv1-mcp. Install the bridge (its FREE tier is all this pack needs), add these skills, and you are analysing models at no cost. When you want the agent to change the model, a PRO licence on the same bridge unlocks writes. See Related products.
One way in
/jgs-v1 routes plain-English requests to the right specialist and flags what only PRO can do.
Air-gapped
Talks only to your local bridge. The model stays inside CATIA Magic. No cloud, no export.
§02 · What the 17 skills do
/jgs-v1
Dispatcher: routes any request to the right specialist.
/jgs-v1-navigate
Structured overview: packages, element counts, diagram inventory.
/jgs-v1-inspect
Deep-dive one element: type, ports, relationships, requirement links.
/jgs-v1-search
Full-text search with ranked, typed hits.
/jgs-v1-impact
Blast-radius analysis before you change a shared element.
/jgs-v1-audit
Six-specialist health audit with severity-graded findings.
/jgs-v1-report
Shareable model-health report plus Requirements Traceability Matrix.
/jgs-v1-fixplan
Turns audit findings into a read-only remediation plan.
Plus the audit specialists (naming, docs, requirements, duplicates, unused, methodology), /jgs-v1-diagrams, /jgs-v1-units, and /jgs-v1-status. 17 in total. See SKILLS.md, or the Skill Usage Guide for how to invoke them.
§03 · How it works
1
Open your model
Open a SysML v1 project in CATIA Magic with the jgs-magic-sysmlv1-mcp bridge running (FREE tier).
2
Ask in plain English
/jgs-v1 I just inherited this model, what am I looking at? The dispatcher picks the specialist.
3
Read the result
Get a structured overview, an element dossier, an audit report, or an RTM, all read straight from the live model.
§04 · Works with your agent
The skills ship in the open SKILL.md format. The installer targets six
agents: copied natively where supported, auto-transformed where not.
Claude Code
Native. The default target.
OpenClaw
Native SKILL.md.
GitHub Copilot CLI
Native SKILL.md.
OpenAI Codex CLI
Auto-transformed to a prompt.
Gemini CLI
Auto-transformed to a TOML command.
Cursor
Auto-transformed to a project rule.
Pick a target with --agent. See other-agents.md.
§05 · Install
Prerequisite: the jgs-magic-sysmlv1-mcp bridge installed and running (its FREE tier is enough), with a SysML v1 project open in CATIA Magic.
# clone, then install for Claude Code (default) python install.py # preview first, or install for another agent python install.py --dry-run python install.py --agent all
Skills install flat for short-name discovery (/jgs-v1). Restart your agent afterwards.