# Reqvire Ontology Authoring

> Expert workflow for creating, extending, and validating Reqvire structural ontology elements for IT engineering, systems engineering, MBSE, and system-of-interest modeling. Use for competency-question-driven OWL/Turtle vocabulary, semantic-contract boundaries, ontology hierarchy, domain/range/property modeling, individuals, axioms, SHACL target vocabulary, structural-to-concept bridges, and Reqvire validation; trigger when the assistant needs to add or revise ontology elements, author Ontology Turtle blocks, decide whether structural meaning belongs in ontology vs requirement/specification/semantic-contract, or prepare ontology terms for semantic export. Do not use for native concept-scheme/concept thesaurus authoring; use reqvire-concept-authoring instead.

## Facts
- Page: https://tashan.sh/capability/skill-reqvire-org-reqvire-ontology-authoring
- tashan id: skill:reqvire-org/reqvire-ontology-authoring
- Source: https://github.com/reqvire-org/reqvire
- Type: skill
- Category: other
- tashan score: not scored (catalogued only — too little public evidence)
- Adoption: 9.0
- Upkeep: 93.0
- Freshness: 85.0
- Evidence coverage: 84% of the inputs this score can use
- Health: active
- Instruction depth: not yet graded
- License: Apache-2.0
- Official: no

## Install

```sh
cp -r reqvire-ontology-authoring ~/.claude/skills/
```

## Security audit
Not scanned. We audit npm-published capabilities; this one has no npm package we can resolve, or has not reached the queue. This is not a clean bill of health.

---
Measured 2026-08-20 by tashan (https://tashan.sh) from public evidence. Scorer s5.