Skills · Claude Code, Cursor, Codex
Systems engineering skills for your coding agent
Your agent already writes code. It has never been shown the standards, conventions and operational detail a working systems engineer carries around. These skills are that knowledge, written in the form an agent reads. One of them is free.
Markdown instructions · No subscription · Nothing to run
Two ways in
Install one, or install all ten
The free skill is the whole requirements skill, not a trimmed sample, and it installs from the Claude Code plugin marketplace in two commands. The pack is the other eight alongside it, bought once and unzipped wherever you keep skills.
Free
MBSE requirements authoring
The five EARS patterns, permanent ID schemes, a banned-word list, and a repair workflow that shows you the diff instead of rewriting your specification behind your back.
/plugin marketplace add radsilent/mbe3d-skills
Paid · one-time
The Systems Engineering Skill Pack
MIL-STD-882E hazard analysis, traceability audits, verification evidence, a portable model format, and the MBE3Dstudio API behaviour that is not in any documentation because none of it is intended.
Ships as one drop-in Markdown file and as ten separate skills, with a model validator and a full-fidelity loader. Standard library, Python 3.8+.
The ten skills
From a requirement to a CI gate
| Skill | What it does | Included |
|---|---|---|
mbse-requirements | EARS authoring, review and repair | Free |
mbse-safety-analysis | MIL-STD-882E severity, probability and RAC; FHA and FMEA | Pack |
mbse-traceability | Audit queries and change-impact analysis | Pack |
mbse-verification | Method selection, pass criteria, evidence schema | Pack |
mbse-model-format | A portable, diffable model file and its validator | Pack |
mbe3d-connect | Connecting to MBE3Dstudio, and its failure modes | Pack |
mbe3d-load | Getting a model in with its attributes intact | Pack |
mbe3d-analyze | SPARQL, competency suites and CI gates | Pack |
mbe3d-studio | The 3D surface and the provenance model under it | Pack |
mbe3d-harness | The agent runtime, its plugins and its session log | Pack |
Five work on your own files. Five connect to MBE3Dstudio and the agent harness beside it, which are licensed separately. They are Markdown, so any agent that reads instructions can use them.