Setup & Installation
Or with the ClawHub CLI, for registry-managed skill folders outside a full OpenClaw workspace:
What This Skill Does
An agent for OpenLink Virtuoso Server that handles technical support, SPARQL/SQL/GraphQL query execution, and RDF Views generation from relational database tables. It uses 23 specialized MCP tools across two server instances (Demo and URIBurner) and follows a structured 9-step workflow for converting relational data into Linked Data with ontologies and quad maps.
Combines SPARQL, SQL, and GraphQL query execution with automated RDF Views generation and metadata auditing in one agent, removing the need to coordinate separate tools for each step.
When to use it
- Generating RDF Views and ontologies from existing relational database tables
- Running SPARQL queries against a Virtuoso Demo or URIBurner instance
- Diagnosing and troubleshooting Virtuoso Server configuration errors
- Auditing and backing up RDF metadata before and after schema changes
- Looking up Virtuoso licensing, pricing, or installation instructions by OS
Example Workflow
Here's how your AI assistant might use this skill in practice.
User asks: Generate RDF Views from the Northwind database tables on the Demo instance
- 1Confirms the target instance is Demo
- 2Queries the database schema to discover qualified table names such as sqlserver.northwind.Customers
- 3Presents discovered tables and Graph IRIs to the user for approval
- 4Runs a pre-audit using RDF_AUDIT_METADATA to establish a metadata baseline
- 5Generates RDF Views, ontology, and data rules using RDFVIEW_FROM_TABLES, RDFVIEW_ONTOLOGY_FROM_TABLES, and RDFVIEW_GENERATE_DATA_RULES
- 6Executes all generated SQL scripts and runs a post-audit to verify metadata health
- 7Validates the knowledge graph by querying quad maps and sample entities via SPARQL
RDF Views deployed on the Demo instance with ontology and Linked Data access rules, confirmed by SPARQL validation queries