semanticlint 0.4.0

Extensible linter and quality pipeline for RDF, SKOS, OWL and RDFS vocabularies

semanticlint

Extensible linter and quality pipeline for RDF, SKOS, OWL and RDFS vocabularies.

---

Features

• Stage 1 — Lint: syntax validation for Turtle, RDF/XML, N-Triples, JSON-LD
• Stage 2 — Integrity: SKOS integrity conditions (W3C), OWL consistency, RDFS checks
• Stage 3 — Quality: label coverage, definition coverage, hierarchy metrics
• Auto-detection: identifies SKOS / OWL / RDFS / RDF vocabulary types automatically
• Extensible: add custom checks with a single class and @CheckRegistry.register
• Configurable: onto-ci.yml alongside your vocabulary files controls which stages run

Installation

pip install semanticlint

Quick start

semanticlint check my-taxonomy.ttl
semanticlint check vocabularies/ --select SKO --ignore SKO003

Writing a custom check

from semanticlint import Check, CheckRegistry, VocabType, Severity, Violation
from rdflib import RDF
from rdflib.namespace import SKOS

@CheckRegistry.register
class CamelCaseConceptCheck(Check):
    id          = "CUS001"
    description = "Concept local names should be CamelCase"
    severity    = Severity.WARNING
    applies_to  = VocabType.SKOS

    def run(self, graph, config):
        violations = []
        for concept in graph.subjects(RDF.type, SKOS.Concept):
            local = str(concept).split("#")[-1].split("/")[-1]
            if not local[0].isupper():
                violations.append(Violation(self.id, f"{local} is not CamelCase", self.severity, concept))
        return violations

Configuration (onto-ci.yml)

version: 1
sources: ["*.ttl", "vocabularies/**/*.ttl"]

select: ["RDF", "SKO", "QUA"]
ignore: []

quality:
  min_label_coverage: 1.0
  min_definition_coverage: 0.5
  languages: ["en"]

plugins:
  - my_project.custom_checks

License

MIT — logo is public domain (W3C RDF logo via Wikimedia Commons).