db-to-ontology

Convert SQL database schemas into TTL/OWL ontologies.

4|1|Updated Apr 30, 2026
One-click install
npx skills add https://github.com/gtheys/pi-my-rifle-ext --skill db-to-ontology
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: db-to-ontology
Source: https://github.com/gtheys/pi-my-rifle-ext/tree/main/skills/db-to-ontology
Command: npx skills add https://github.com/gtheys/pi-my-rifle-ext --skill db-to-ontology

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Converts an existing database schema into a formal ontology (TTL/OWL), enabling semantic modeling, knowledge graphs, and reasoner-ready representations.

Core Features & Use Cases

  • Introspects a live database or schema dump to extract tables, columns, keys, and relationships.
  • Generates a structured ontology in Turtle/OWL with Classes, Properties, and Ontological Axioms suitable for reasoning.
  • Use case: transform a PostgreSQL schema into a reusable knowledge graph for data integration and querying.

Quick Start

Connect a database or paste a CREATE TABLE dump and ask the skill to generate a TTL/OWL ontology from the schema.

Frequently Asked Questions about db-to-ontology

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I convert a database schema into an OWL ontology?

To convert a database schema into an OWL ontology, you provide connection strings or CREATE TABLE statements, and the tool generates a formal Turtle/OWL semantic model with classes and properties. This transforms relational structures into a reasoner-ready knowledge graph.

Can I generate a knowledge graph from a PostgreSQL or MySQL dump?

Yes, you can generate a knowledge graph from a PostgreSQL or MySQL dump by inputting SQL schema dumps or CREATE TABLE statements. The tool extracts tables, columns, and relationships to produce a structured Turtle/OWL ontology output.

What's the best way to create a semantic model from existing SQL tables?

The best way to create a semantic model from SQL tables is introspecting a live database or schema dump to extract keys and relationships. It generates a structured Turtle/OWL ontology with ontological axioms suitable for data integration and querying.

Do I need a live database connection to generate a Turtle TTL file?

No, you do not need a live database connection to generate a Turtle TTL file. You can simply paste a CREATE TABLE schema dump, and the tool will extract the structural metadata to produce a version-controlled, reasoner-ready ontology.

Does this approach support SQLite and other SQL databases for ontology generation?

Yes, this approach supports ontology generation for SQLite and other SQL databases. You can supply connection strings or SQL dumps to produce a formal OWL representation with a configured base URI and scope.

Why convert a relational database schema into a formal ontology?

Converting a relational database schema into a formal ontology enables semantic modeling and knowledge graph construction. The resulting Turtle/OWL output provides a reasoner-ready representation with ontological axioms for advanced data integration.