[Fix] Allow closed object schemas in Outlines prevalidation (#39869)

2026-09-16 16:42:17 -07:00
parent d78b35076a
commit dc067c7d8c
2 changed files with 11 additions and 7 deletions
@@ -224,17 +224,20 @@ def validate_outlines_json_schema(schema: Any) -> None:
            )

        if "properties" in subschema:
-            ignored_object_constraints = sorted(
-                {"additionalProperties", "maxProperties", "minProperties"}.intersection(
-                    subschema
-                )
-            )
+            ignored_object_constraints = {
+                "additionalProperties",
+                "maxProperties",
+                "minProperties",
+            }.intersection(subschema)
+            if subschema.get("additionalProperties") is False:
+                # The properties regex already excludes undeclared keys.
+                ignored_object_constraints.discard("additionalProperties")
            if ignored_object_constraints:
                _raise_unsupported(
                    "outlines",
                    pointer,
                    "properties cannot be combined with "
-                    + ", ".join(ignored_object_constraints),
+                    + ", ".join(sorted(ignored_object_constraints)),
                )

        if "prefixItems" in subschema: