diff --git a/src/config/repoAccess.ts b/src/config/repoAccess.ts
index 63a735e..622f811 100644
--- a/src/config/repoAccess.ts
+++ b/src/config/repoAccess.ts
@@ -346,6 +346,14 @@ export const REPOSITORY_ACCESS: RepositoryAccess[] = [
       { username: 'jerryhong1', permission: 'push' },
     ],
   },
+  {
+    repository: 'experimental-ext-grouping',
+    teams: [
+      { team: 'core-maintainers', permission: 'admin' },
+      { team: 'moderators', permission: 'triage' },
+      { team: 'primitive-grouping-ig', permission: 'admin' },
+    ],
+  },
   {
     repository: 'experimental-ext-skills',
     teams: [
diff --git a/src/config/roleIds.ts b/src/config/roleIds.ts
index 9ae3186..b63b54b 100644
--- a/src/config/roleIds.ts
+++ b/src/config/roleIds.ts
@@ -61,8 +61,8 @@ export const ROLE_IDS = {
   CLIENT_IMPLEMENTOR_IG: 'client-implementor-ig',
   FINANCIAL_SERVICES_IG: 'financial-services-ig',
   GATEWAYS_IG: 'gateways-ig',
-  SKILLS_OVER_MCP_IG: 'skills-over-mcp-ig',
   PRIMITIVE_GROUPING_IG: 'primitive-grouping-ig',
+  SKILLS_OVER_MCP_IG: 'skills-over-mcp-ig',
 
   // ===================
   // WG/IG Facilitators (Discord only)
diff --git a/src/config/users.ts b/src/config/users.ts
index f008b1e..fd211f9 100644
--- a/src/config/users.ts
+++ b/src/config/users.ts
@@ -98,6 +98,7 @@ export const MEMBERS: readonly Member[] = [
       ROLE_IDS.MAINTAINERS,
       ROLE_IDS.DOCS_MAINTAINERS,
       ROLE_IDS.INSPECTOR_MAINTAINERS,
+      ROLE_IDS.PRIMITIVE_GROUPING_IG,
       ROLE_IDS.REFERENCE_SERVERS_MAINTAINERS,
       ROLE_IDS.MODERATORS,
       ROLE_IDS.SKILLS_OVER_MCP_IG,
@@ -492,7 +493,11 @@ export const MEMBERS: readonly Member[] = [
     github: 'SamMorrowDrums',
     email: 'sammorrowdrums@github.com',
     discord: '782948163694493696',
-    memberOf: [ROLE_IDS.SKILLS_OVER_MCP_IG, ROLE_IDS.WG_IG_FACILITATORS],
+    memberOf: [
+      ROLE_IDS.PRIMITIVE_GROUPING_IG,
+      ROLE_IDS.SKILLS_OVER_MCP_IG,
+      ROLE_IDS.WG_IG_FACILITATORS,
+    ],
   },
   {
     github: 'sdubov',