diff --git a/gitnexus/src/core/group/config-parser.ts b/gitnexus/src/core/group/config-parser.ts
index d55969a73..4703e6329 100644
--- a/gitnexus/src/core/group/config-parser.ts
+++ b/gitnexus/src/core/group/config-parser.ts
@@ -13,7 +13,7 @@ const DEFAULT_DETECT = {
   topics: true,
   shared_libs: true,
   embedding_fallback: true,
-  workspace_deps: true,
+  workspace_deps: false,
 };
 
 const DEFAULT_MATCHING = {
diff --git a/gitnexus/src/core/group/extractors/manifest-extractor.ts b/gitnexus/src/core/group/extractors/manifest-extractor.ts
index b65b7712d..3185f05e1 100644
--- a/gitnexus/src/core/group/extractors/manifest-extractor.ts
+++ b/gitnexus/src/core/group/extractors/manifest-extractor.ts
@@ -269,17 +269,19 @@ export class ManifestExtractor {
           { contract: link.contract },
         );
       } else if (link.type === 'custom') {
-        // V1: exact name-only match on code-definition nodes.
-        // Positive allowlist mirrors other contract types. If multiple code
-        // symbols share the same name, ORDER BY filePath ASC LIMIT 1 picks
-        // the alphabetically-first occurrence deterministically.
+        // Workspace extractors produce qualified contracts like "mathlex::Expression".
+        // Graph nodes store the unqualified symbol name ("Expression"), so strip
+        // the "provider::" prefix before querying.
+        const symbolName = link.contract.includes('::')
+          ? link.contract.split('::').pop()!
+          : link.contract;
         rows = await executor(
           `MATCH (n:Function|Method|Class|Interface|Struct|Enum|Trait|Constructor|TypeAlias|Impl|Macro|Union|Typedef|Property|Record|Delegate|Annotation|Template|Const|Static|CodeElement)
-           WHERE n.name = $contract
+           WHERE n.name = $symbolName
            RETURN n.id AS uid, n.name AS name, n.filePath AS filePath
            ORDER BY n.filePath ASC
            LIMIT 1`,
-          { contract: link.contract },
+          { symbolName },
         );
       } else {
         return null;
diff --git a/gitnexus/test/unit/group/manifest-extractor.test.ts b/gitnexus/test/unit/group/manifest-extractor.test.ts
index 997445f2e..bb4e203fa 100644
--- a/gitnexus/test/unit/group/manifest-extractor.test.ts
+++ b/gitnexus/test/unit/group/manifest-extractor.test.ts
@@ -596,7 +596,7 @@ describe('ManifestExtractor', () => {
       [
         'engine/thales',
         async (_cypher, params) => {
-          if (params?.contract === 'Expression') {
+          if (params?.symbolName === 'Expression') {
             return [
               {
                 uid: 'uid-expression-struct',
@@ -611,7 +611,7 @@ describe('ManifestExtractor', () => {
       [
         'parser/mathlex',
         async (_cypher, params) => {
-          if (params?.contract === 'Expression') {
+          if (params?.symbolName === 'Expression') {
             return [
               {
                 uid: 'uid-expression-enum',
@@ -640,6 +640,42 @@ describe('ManifestExtractor', () => {
     expect(result.crossLinks[0].matchType).toBe('manifest');
   });
 
+  it('custom contract with qualified name (provider::Symbol) strips prefix before graph query', async () => {
+    const links: GroupManifestLink[] = [
+      {
+        from: 'parser/mathlex',
+        to: 'engine/thales',
+        type: 'custom',
+        contract: 'mathlex::Expression',
+        role: 'provider',
+      },
+    ];
+
+    let capturedParams: Record<string, unknown> | undefined;
+    const dbExecutors = new Map<
+      string,
+      (cypher: string, params?: Record<string, unknown>) => Promise<Record<string, unknown>[]>
+    >([
+      [
+        'parser/mathlex',
+        async (_cypher, params) => {
+          capturedParams = params;
+          if (params?.symbolName === 'Expression') {
+            return [{ uid: 'uid-expr', name: 'Expression', filePath: 'src/ast.rs' }];
+          }
+          return [];
+        },
+      ],
+      ['engine/thales', async () => []],
+    ]);
+
+    const result = await extractor.extractFromManifest(links, dbExecutors);
+    const provider = result.contracts.find((c) => c.role === 'provider');
+
+    expect(capturedParams?.symbolName).toBe('Expression');
+    expect(provider?.symbolUid).toBe('uid-expr');
+  });
+
   it('falls back to synthetic uid when custom symbol not found in graph', async () => {
     const links: GroupManifestLink[] = [
       {
@@ -714,7 +750,7 @@ describe('ManifestExtractor', () => {
       [
         'parser/mathlex',
         async (_cypher, params) => {
-          if (params?.contract === 'Token') {
+          if (params?.symbolName === 'Token') {
             return [{ uid: 'uid-token-first', name: 'Token', filePath: 'src/ast.rs' }];
           }
           return [];
@@ -723,7 +759,7 @@ describe('ManifestExtractor', () => {
       [
         'engine/thales',
         async (_cypher, params) => {
-          if (params?.contract === 'Token') {
+          if (params?.symbolName === 'Token') {
             return [{ uid: 'uid-token-consumer', name: 'Token', filePath: 'src/lexer.rs' }];
           }
           return [];