Files
semantica/tests
Kevin Zhang da642f12fa fix(export): @vocab mints into the shipped ns# namespace (#1236)
fix(export): keep caller data out of the shipped ns# namespace

Every JSON-LD context set @vocab to https://semantica.dev/vocab/,
which 404s, so every bare term in caller data (extracted entity/
relationship types, arbitrary metadata keys) minted under a namespace
the package never ships. The obvious fix, pointing @vocab at
SEMANTICA_NS instead, turned out to be worse than the dead link: since
that namespace is real and populated, every bare term a caller happens
to use now expands into something that looks like official Semantica
vocabulary. An extracted type "ORG" became ns#ORG, a class the
vocabulary never defines. A metadata key "source" attached a plain
string value to sem:source, an owl:ObjectProperty that already exists
in semantica-ns.ttl with a resource-valued range, silently corrupting
its semantics.

@vocab is now removed from all five contexts (four in
json_exporter.py, one in rdf_exporter.py) rather than repointed.
Every document already used explicit semantica: prefixes for its own
terms, so nothing else in the output changes; an unscoped bare term
now simply fails to expand, which is standard JSON-LD behavior for a
context that doesn't know it, instead of being silently claimed by
our namespace.

Two call sites needed to stop handing caller data to @type/bare terms
in the first place:

- Entity nodes are always typed semantica:Entity now, with the
  caller's label carried as a semantica:type string instead of
  minted into @type. This matches how relationship nodes already
  carried their type. sem:type's domain in semantica-ns.ttl opens up
  to cover entities as well as relationships, following the
  sem:confidence precedent, since the property is now legitimately
  emitted for both.
- semantica:metadata gets an explicit @json term definition, so a
  caller's metadata dict travels as one rdf:JSON literal instead of
  having its keys expand as separate predicates. A metadata key can
  no longer collide with a real ontology term no matter what the
  caller names it.

Both JSONExporter and RDFExporter.serialize_to_jsonld got the same
treatment, since they build separate JSON-LD structures for the same
underlying data.

The regression tests assert the negative space this bug lived in: no
context declares @vocab, no caller type label appears as an rdf:type
under ns#, and no caller metadata key appears as a predicate under
ns# at all, only as content inside the single JSON literal.

Closes #1146
2026-08-28 19:53:35 +05:00
..
2026-06-16 04:43:45 +05:00