diff --git a/.netconfig b/.netconfig
index c836711..4d229c7 100644
--- a/.netconfig
+++ b/.netconfig
@@ -127,8 +127,8 @@
 	weak
 [file "src/GrokClient/chat.proto"]
 	url = https://github.com/xai-org/xai-proto/blob/main/proto/xai/api/v1/chat.proto
-	sha = 92e44aad6de6f4dff4034c2ba118a6aed3351711
-	etag = 9d685da14ef9bc269ed6f29b87f6874bb5eb4662586092a221c90fabdac40418
+	sha = 362749661fa2d340d234ad372fab920538897821
+	etag = 0e35007f9056fd101983a35614525773ea215eec9a8fa6707c2ec4866da5b7f8
 	weak
 [file "src/GrokClient/deferred.proto"]
 	url = https://github.com/xai-org/xai-proto/blob/main/proto/xai/api/v1/deferred.proto
@@ -167,8 +167,8 @@
 	weak
 [file "src/GrokClient/usage.proto"]
 	url = https://github.com/xai-org/xai-proto/blob/main/proto/xai/api/v1/usage.proto
-	sha = afc88be2698cf4fb5ad476734d02b931241c0624
-	etag = e760ecb2f328565e57bbd0ad1fec6a62004088c8b217c0cb178653cd2c1bf432
+	sha = 362749661fa2d340d234ad372fab920538897821
+	etag = bd66823dfde1a2fff714d3712104bef886baf22da9f94c7505acee37d3ff67fd
 	weak
 [file "src/GrokClient/google/protobuf/timestamp.proto"]
 	url = https://github.com/protocolbuffers/protobuf/blob/main/src/google/protobuf/timestamp.proto
diff --git a/src/GrokClient/chat.proto b/src/GrokClient/chat.proto
index 525d79f..e07f0e7 100644
--- a/src/GrokClient/chat.proto
+++ b/src/GrokClient/chat.proto
@@ -463,8 +463,8 @@ enum IncludeOption {
   // Include the plaintext output from the collections search tool in the response.
   INCLUDE_OPTION_COLLECTIONS_SEARCH_CALL_OUTPUT = 4;
 
-  // Include the plaintext output from the document search tool in the response.
-  INCLUDE_OPTION_DOCUMENT_SEARCH_CALL_OUTPUT = 5;
+  // Include the plaintext output from the attachment search tool in the response.
+  INCLUDE_OPTION_ATTACHMENT_SEARCH_CALL_OUTPUT = 5;
 
   // Include the plaintext output from the MCP tool in the response.
   INCLUDE_OPTION_MCP_CALL_OUTPUT = 6;
@@ -585,8 +585,8 @@ message Tool {
     CollectionsSearch collections_search = 6;
     // A remote MCP server to use.
     MCP mcp = 7;
-    // Built in document search.
-    DocumentSearch document_search = 8;
+    // Built in attachment search.
+    AttachmentSearch attachment_search = 8;
   }
 }
 
@@ -668,7 +668,7 @@ message CollectionsSearch {
   optional int32 limit = 2;
 }
 
-message DocumentSearch {
+message AttachmentSearch {
   // Optional number of files to limit the search to.
   optional int32 limit = 2;
 }
@@ -714,8 +714,9 @@ enum ToolCallType {
   // Maps to `mcp_call` type in OAI Responses API.
   TOOL_CALL_TYPE_MCP_TOOL = 6;
 
-  // Indicates the tool is a server-side document_search tool, and client side won't need to execute.
-  TOOL_CALL_TYPE_DOCUMENT_SEARCH_TOOL = 7;
+  // Indicates the tool is a server-side attachment_search tool, and client side won't need to execute.
+  // Maps to `attachment_search_call` type in OAI Responses API.
+  TOOL_CALL_TYPE_ATTACHMENT_SEARCH_TOOL = 7;
 }
 
 enum ToolCallStatus {
diff --git a/src/GrokClient/usage.proto b/src/GrokClient/usage.proto
index a4aae07..06669b1 100644
--- a/src/GrokClient/usage.proto
+++ b/src/GrokClient/usage.proto
@@ -56,5 +56,5 @@ enum ServerSideTool {
   SERVER_SIDE_TOOL_VIEW_X_VIDEO = 5;
   SERVER_SIDE_TOOL_COLLECTIONS_SEARCH = 6;
   SERVER_SIDE_TOOL_MCP = 7;
-  SERVER_SIDE_TOOL_DOCUMENT_SEARCH = 8;
+  SERVER_SIDE_TOOL_ATTACHMENT_SEARCH = 8;
 }