diff --git a/specification/ai/Azure.AI.Projects/main.tsp b/specification/ai/Azure.AI.Projects/main.tsp
index 076330a08d0b..f73cca1b3c5d 100644
--- a/specification/ai/Azure.AI.Projects/main.tsp
+++ b/specification/ai/Azure.AI.Projects/main.tsp
@@ -20,11 +20,11 @@ namespace Azure.AI {
 
 #suppress "@azure-tools/typespec-autorest/unsupported-http-auth-scheme"
 @useAuth(
-  BearerAuth | OAuth2Auth<[
+  OAuth2Auth<[
     {
       type: OAuth2FlowType.implicit,
       authorizationUrl: "https://login.microsoftonline.com/common/oauth2/v2.0/authorize",
-      scopes: ["https://cognitiveservices.azure.com/.default"],
+      scopes: ["https://cognitiveservices.azure.com/.default"], // TODO: Replace with ["https://ai.azure.com/.default"]
     }
   ]>
 )
diff --git a/specification/ai/Azure.AI.Projects/red-teams/models.tsp b/specification/ai/Azure.AI.Projects/red-teams/models.tsp
index a9c2175cdd68..db9b001a1ef1 100644
--- a/specification/ai/Azure.AI.Projects/red-teams/models.tsp
+++ b/specification/ai/Azure.AI.Projects/red-teams/models.tsp
@@ -91,7 +91,7 @@ union AttackStrategy {
   Url: "url",
 
   @doc("Represents the baseline direct adversarial probing, which is used by attack strategies as the attack objective.")
-  Baseline: "baseline"
+  Baseline: "baseline",
 }
 
 @doc("Risk category for the attack objective.")
diff --git a/specification/ai/data-plane/Azure.AI.Projects/preview/2025-05-15-preview/azure-ai-projects-1dp.json b/specification/ai/data-plane/Azure.AI.Projects/preview/2025-05-15-preview/azure-ai-projects-1dp.json
index 19905c68dac2..cebe7d9b3a1c 100644
--- a/specification/ai/data-plane/Azure.AI.Projects/preview/2025-05-15-preview/azure-ai-projects-1dp.json
+++ b/specification/ai/data-plane/Azure.AI.Projects/preview/2025-05-15-preview/azure-ai-projects-1dp.json
@@ -717,7 +717,7 @@
           {
             "name": "body",
             "in": "body",
-            "description": "The definition of the DatasetVersion to create",
+            "description": "The definition of the DatasetVersion to create or update",
             "required": true,
             "schema": {
               "$ref": "#/definitions/DatasetVersionUpdate"
@@ -1467,7 +1467,7 @@
           {
             "name": "body",
             "in": "body",
-            "description": "The definition of the Index to create",
+            "description": "The definition of the Index to create or update",
             "required": true,
             "schema": {
               "$ref": "#/definitions/IndexUpdate"
diff --git a/specification/ai/data-plane/Azure.AI.Projects/stable/2025-05-01/azure-ai-projects-1dp.json b/specification/ai/data-plane/Azure.AI.Projects/stable/2025-05-01/azure-ai-projects-1dp.json
index ef090de6db30..b8954a9c94bb 100644
--- a/specification/ai/data-plane/Azure.AI.Projects/stable/2025-05-01/azure-ai-projects-1dp.json
+++ b/specification/ai/data-plane/Azure.AI.Projects/stable/2025-05-01/azure-ai-projects-1dp.json
@@ -717,7 +717,7 @@
           {
             "name": "body",
             "in": "body",
-            "description": "The definition of the DatasetVersion to create",
+            "description": "The definition of the DatasetVersion to create or update",
             "required": true,
             "schema": {
               "$ref": "#/definitions/DatasetVersionUpdate"
@@ -1326,7 +1326,7 @@
           {
             "name": "body",
             "in": "body",
-            "description": "The definition of the Index to create",
+            "description": "The definition of the Index to create or update",
             "required": true,
             "schema": {
               "$ref": "#/definitions/IndexUpdate"
diff --git a/specification/ai/data-plane/Azure.AI.Projects/stable/latest/azure-ai-projects-1dp.json b/specification/ai/data-plane/Azure.AI.Projects/stable/latest/azure-ai-projects-1dp.json
index 3b7b6180315b..55c422f287e0 100644
--- a/specification/ai/data-plane/Azure.AI.Projects/stable/latest/azure-ai-projects-1dp.json
+++ b/specification/ai/data-plane/Azure.AI.Projects/stable/latest/azure-ai-projects-1dp.json
@@ -717,7 +717,7 @@
           {
             "name": "body",
             "in": "body",
-            "description": "The definition of the DatasetVersion to create",
+            "description": "The definition of the DatasetVersion to create or update",
             "required": true,
             "schema": {
               "$ref": "#/definitions/DatasetVersionUpdate"
@@ -1326,7 +1326,7 @@
           {
             "name": "body",
             "in": "body",
-            "description": "The definition of the Index to create",
+            "description": "The definition of the Index to create or update",
             "required": true,
             "schema": {
               "$ref": "#/definitions/IndexUpdate"