diff --git a/proto/buffer.proto b/proto/buffer.proto
index b668a44..23f919f 100644
--- a/proto/buffer.proto
+++ b/proto/buffer.proto
@@ -2,34 +2,59 @@ syntax = "proto3";
 
 package codemp.buffer;
 
+// handle buffer changes, keep in sync users
 service Buffer {
+	// attach to a buffer and receive operations
 	rpc Attach (BufferPayload)    returns (stream RawOp);
+	// send an operation for a specific buffer
 	rpc Edit   (OperationRequest) returns (BufferEditResponse);
+	// create a new buffer
 	rpc Create (BufferPayload)    returns (BufferCreateResponse);
+	// get contents of buffer
 	rpc Sync   (BufferPayload)    returns (BufferResponse);
 }
 
+// empty request
 message BufferCreateResponse {}
+
+// empty request
 message BufferEditResponse {}
 
+// raw wire operation sequence event
 message RawOp {
+	// operation seq serialized to json
 	string opseq = 1;
+
+	// user id that has executed the operation
 	string user = 2;
 }
 
+// client buffer operation request
 message OperationRequest {
+	// buffer path to operate onto
 	string path  = 1;
+
+	// buffer hash of source state
 	string hash  = 2;
-	string opseq = 3;
-	string user  = 4;
+
+	// raw operation sequence
+	RawOp op = 3;
 }
 
+// generic buffer operation request
 message BufferPayload {
+	// buffer path to operate onto
 	string path = 1;
+
+	// user id that is requesting the operation
 	string user = 2;
+
+	// optional buffer full content for replacing
 	optional string content = 3;
 }
 
+// response from server with buffer content
 message BufferResponse {
-	string content = 2;
+	// current buffer content
+	string content = 1;
 }
diff --git a/proto/cursor.proto b/proto/cursor.proto
index 5af4fa2..d48d7c5 100644
--- a/proto/cursor.proto
+++ b/proto/cursor.proto
@@ -2,29 +2,43 @@ syntax = "proto3";
 
 package codemp.cursor;
 
+// handle cursor events and broadcast to all users
 service Cursor {
+	// send cursor movement to server
 	rpc Moved  (CursorEvent)      returns (MovedResponse);
+	// attach to a workspace and receive cursor events
 	rpc Listen (UserIdentity)     returns (stream CursorEvent);
 }
 
+// empty request
 message MovedResponse {}
 
+// a tuple indicating row and column
 message RowCol {
 	int32 row = 1;
 	int32 col = 2;
 }
 
+// cursor position object
 message CursorPosition {
+	// path of current buffer this cursor is into
 	string buffer = 1;
+	// cursor start position
 	RowCol start = 2;
+	// cursor end position
 	RowCol end = 3;
 }
 
+// cursor event, with user id and cursor position
 message CursorEvent {
+	// user moving the cursor
 	string user = 1;
+	// new cursor position
 	CursorPosition position = 2;
 }
 
+// payload identifying user for cursor attaching
 message UserIdentity {
+	// user identifier
 	string id = 1;
 }
diff --git a/src/buffer/worker.rs b/src/buffer/worker.rs
index c4336a0..509b364 100644
--- a/src/buffer/worker.rs
+++ b/src/buffer/worker.rs
@@ -114,9 +114,10 @@ async fn send_opseq(tx: &mut BufferClient<Channel>, uid: String, path: String, o
 		}
 	};
 	let req = OperationRequest {
-		hash: "".into(),
-		user: uid,
-		opseq, path,
+		path, hash: "".into(),
+		op: Some(RawOp {
+			opseq, user: uid,
+		}),
 	};
 	match tx.edit(req).await {
 		Ok(_) => true,