diff --git a/packages/services/schema/package.json b/packages/services/schema/package.json
index 5888b50106..5d28289570 100644
--- a/packages/services/schema/package.json
+++ b/packages/services/schema/package.json
@@ -12,6 +12,7 @@
     "@apollo/federation": "0.38.1",
     "@graphql-hive/external-composition": "workspace:*",
     "@graphql-hive/federation-link-utils": "workspace:*",
+    "@graphql-tools/merge": "9.0.22",
     "@graphql-tools/stitch": "9.4.13",
     "@graphql-tools/stitching-directives": "3.1.24",
     "@hive/service-common": "workspace:*",
diff --git a/packages/services/schema/src/orchestrators.ts b/packages/services/schema/src/orchestrators.ts
index 8d650db565..475c8c25cf 100644
--- a/packages/services/schema/src/orchestrators.ts
+++ b/packages/services/schema/src/orchestrators.ts
@@ -5,6 +5,7 @@ import {
   buildASTSchema,
   concatAST,
   GraphQLError,
+  isTypeSystemExtensionNode,
   Kind,
   parse,
   print,
@@ -14,6 +15,7 @@ import {
 } from 'graphql';
 import { validateSDL } from 'graphql/validation/validate.js';
 import { extractLinkImplementations } from '@graphql-hive/federation-link-utils';
+import { mergeTypeDefs } from '@graphql-tools/merge';
 import { stitchSchemas } from '@graphql-tools/stitch';
 import { stitchingDirectives } from '@graphql-tools/stitching-directives';
 import type { ServiceLogger } from '@hive/service-common';
@@ -496,12 +498,18 @@ function createSingle(): Orchestrator {
   return {
     async composeAndValidate(schemas) {
       const schema = schemas[0];
-      const schemaAst = parse(schema.raw);
+      let schemaAst = parse(schema.raw);
+
+      // If the schema contains type system extension nodes, merge them into the schema.
+      // We don't want to show many type extension of User, we want to show single User type.
+      if (schemaAst.definitions.some(isTypeSystemExtensionNode)) {
+        schemaAst = mergeTypeDefs(schemaAst);
+      }
       const errors = validateSingleSDL(schemaAst);
 
       return {
         errors,
-        sdl: print(trimDescriptions(parse(schema.raw))),
+        sdl: print(trimDescriptions(schemaAst)),
         supergraph: null,
         contracts: null,
         tags: null,
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index f71bedf313..564085c8dd 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -1141,6 +1141,9 @@ importers:
       '@graphql-hive/federation-link-utils':
         specifier: workspace:*
         version: link:../../libraries/federation-link-utils/dist
+      '@graphql-tools/merge':
+        specifier: 9.0.22
+        version: 9.0.22(graphql@16.9.0)
       '@graphql-tools/stitch':
         specifier: 9.4.13
         version: 9.4.13(graphql@16.9.0)
@@ -16303,8 +16306,8 @@ snapshots:
     dependencies:
       '@aws-crypto/sha256-browser': 3.0.0
       '@aws-crypto/sha256-js': 3.0.0
-      '@aws-sdk/client-sso-oidc': 3.596.0
-      '@aws-sdk/client-sts': 3.596.0(@aws-sdk/client-sso-oidc@3.596.0)
+      '@aws-sdk/client-sso-oidc': 3.596.0(@aws-sdk/client-sts@3.596.0)
+      '@aws-sdk/client-sts': 3.596.0
       '@aws-sdk/core': 3.592.0
       '@aws-sdk/credential-provider-node': 3.596.0(@aws-sdk/client-sso-oidc@3.596.0)(@aws-sdk/client-sts@3.596.0)
       '@aws-sdk/middleware-host-header': 3.577.0
@@ -16411,11 +16414,11 @@ snapshots:
     transitivePeerDependencies:
       - aws-crt
 
-  '@aws-sdk/client-sso-oidc@3.596.0':
+  '@aws-sdk/client-sso-oidc@3.596.0(@aws-sdk/client-sts@3.596.0)':
     dependencies:
       '@aws-crypto/sha256-browser': 3.0.0
       '@aws-crypto/sha256-js': 3.0.0
-      '@aws-sdk/client-sts': 3.596.0(@aws-sdk/client-sso-oidc@3.596.0)
+      '@aws-sdk/client-sts': 3.596.0
       '@aws-sdk/core': 3.592.0
       '@aws-sdk/credential-provider-node': 3.596.0(@aws-sdk/client-sso-oidc@3.596.0)(@aws-sdk/client-sts@3.596.0)
       '@aws-sdk/middleware-host-header': 3.577.0
@@ -16454,6 +16457,7 @@ snapshots:
       '@smithy/util-utf8': 3.0.0
       tslib: 2.8.1
     transitivePeerDependencies:
+      - '@aws-sdk/client-sts'
       - aws-crt
 
   '@aws-sdk/client-sso-oidc@3.723.0(@aws-sdk/client-sts@3.723.0)':
@@ -16587,11 +16591,11 @@ snapshots:
     transitivePeerDependencies:
       - aws-crt
 
-  '@aws-sdk/client-sts@3.596.0(@aws-sdk/client-sso-oidc@3.596.0)':
+  '@aws-sdk/client-sts@3.596.0':
     dependencies:
       '@aws-crypto/sha256-browser': 3.0.0
       '@aws-crypto/sha256-js': 3.0.0
-      '@aws-sdk/client-sso-oidc': 3.596.0
+      '@aws-sdk/client-sso-oidc': 3.596.0(@aws-sdk/client-sts@3.596.0)
       '@aws-sdk/core': 3.592.0
       '@aws-sdk/credential-provider-node': 3.596.0(@aws-sdk/client-sso-oidc@3.596.0)(@aws-sdk/client-sts@3.596.0)
       '@aws-sdk/middleware-host-header': 3.577.0
@@ -16630,7 +16634,6 @@ snapshots:
       '@smithy/util-utf8': 3.0.0
       tslib: 2.8.1
     transitivePeerDependencies:
-      - '@aws-sdk/client-sso-oidc'
       - aws-crt
 
   '@aws-sdk/client-sts@3.723.0':
@@ -16744,7 +16747,7 @@ snapshots:
 
   '@aws-sdk/credential-provider-ini@3.596.0(@aws-sdk/client-sso-oidc@3.596.0)(@aws-sdk/client-sts@3.596.0)':
     dependencies:
-      '@aws-sdk/client-sts': 3.596.0(@aws-sdk/client-sso-oidc@3.596.0)
+      '@aws-sdk/client-sts': 3.596.0
       '@aws-sdk/credential-provider-env': 3.587.0
       '@aws-sdk/credential-provider-http': 3.596.0
       '@aws-sdk/credential-provider-process': 3.587.0
@@ -16863,7 +16866,7 @@ snapshots:
 
   '@aws-sdk/credential-provider-web-identity@3.587.0(@aws-sdk/client-sts@3.596.0)':
     dependencies:
-      '@aws-sdk/client-sts': 3.596.0(@aws-sdk/client-sso-oidc@3.596.0)
+      '@aws-sdk/client-sts': 3.596.0
       '@aws-sdk/types': 3.577.0
       '@smithy/property-provider': 3.1.11
       '@smithy/types': 3.7.2
@@ -17038,7 +17041,7 @@ snapshots:
 
   '@aws-sdk/token-providers@3.587.0(@aws-sdk/client-sso-oidc@3.596.0)':
     dependencies:
-      '@aws-sdk/client-sso-oidc': 3.596.0
+      '@aws-sdk/client-sso-oidc': 3.596.0(@aws-sdk/client-sts@3.596.0)
       '@aws-sdk/types': 3.577.0
       '@smithy/property-provider': 3.1.11
       '@smithy/shared-ini-file-loader': 3.1.12