diff --git a/gitnexus/src/core/lbug/schema.ts b/gitnexus/src/core/lbug/schema.ts
index 0b0c27e6b..4d6b490de 100644
--- a/gitnexus/src/core/lbug/schema.ts
+++ b/gitnexus/src/core/lbug/schema.ts
@@ -492,6 +492,8 @@ export const STRUCTURAL_PAIR_DDL = `  FROM File TO Folder,
   FROM \`Impl\` TO \`Impl\`,
   FROM \`TypeAlias\` TO \`Trait\`,
   FROM \`TypeAlias\` TO Class,
+  FROM \`TypeAlias\` TO \`Property\`,
+  FROM \`TypeAlias\` TO Method,
   FROM \`Record\` TO Method,
   FROM \`Record\` TO \`Constructor\`,
   FROM \`Record\` TO \`Property\`,
diff --git a/gitnexus/test/integration/structural-pair-coverage.test.ts b/gitnexus/test/integration/structural-pair-coverage.test.ts
index 0d525fc2f..09226d0d4 100644
--- a/gitnexus/test/integration/structural-pair-coverage.test.ts
+++ b/gitnexus/test/integration/structural-pair-coverage.test.ts
@@ -109,6 +109,18 @@ const NON_BRIDGE_CORPUS = [
     emitter: 'tools-phase HANDLES_TOOL',
     sentinels: ['Class|Tool'],
   },
+  {
+    // A TypeScript object-type alias owns its members, so it emits
+    // HAS_PROPERTY from a `TypeAlias` — a label on the ELEVEN-table list this
+    // suite exists for, and one no rule reaches. Shipped once without the pair
+    // declared: emit threw `UndeclaredRelationPairError` and the whole analyze
+    // died on any repo containing `type X = { ... }`. Every resolver test still
+    // passed, because they build an in-memory graph and never write to the DB —
+    // this suite is the only place that difference shows up.
+    fixture: 'typescript-alias-fields',
+    emitter: 'object-type alias HAS_PROPERTY',
+    sentinels: ['TypeAlias|Property', 'Interface|Property'],
+  },
 ] as const satisfies readonly CorpusEntry[];
 
 /*