Add comment the reason why the protocol is old version

kargnas · kargnas · commit 12c654ae8b28 · 2025-06-02T04:01:02.000+09:00
diff --git a/src/Protocol/MCPProtocol.php b/src/Protocol/MCPProtocol.php
@@ -24,6 +24,7 @@
  */
 final class MCPProtocol
 {
+    // This should be 2025-03-26, but I set this to 2024-11-05 because Vercel ai-sdk doesn't support it
     public const PROTOCOL_VERSION = '2024-11-05';
 
     private TransportInterface $transport;
@@ -111,7 +112,7 @@ public function handleMessage(string $clientId, array $message): ProcessMessageD
     {
         $messageId = $message['id'] ?? null;
         try {
-            if (! isset($message['jsonrpc']) || $message['jsonrpc'] !== '2.0') {
+            if (!isset($message['jsonrpc']) || $message['jsonrpc'] !== '2.0') {
                 throw new JsonRpcErrorException(message: 'Invalid Request: Not a valid JSON-RPC 2.0 message', code: JsonRpcErrorCode::INVALID_REQUEST);
             }
 

Original file line number	Diff line number	Diff line change
`@@ -24,6 +24,7 @@`
`24`	`24`	`*/`
`25`	`25`	`final class MCPProtocol`
`26`	`26`	`{`
	`27`	`+ // This should be 2025-03-26, but I set this to 2024-11-05 because Vercel ai-sdk doesn't support it`
`27`	`28`	`public const PROTOCOL_VERSION = '2024-11-05';`
`28`	`29`
`29`	`30`	`private TransportInterface $transport;`
`@@ -111,7 +112,7 @@ public function handleMessage(string $clientId, array $message): ProcessMessageD`
`111`	`112`	`{`
`112`	`113`	`$messageId = $message['id'] ?? null;`
`113`	`114`	`try {`
`114`		`- if (! isset($message['jsonrpc']) \|\| $message['jsonrpc'] !== '2.0') {`
	`115`	`+ if (!isset($message['jsonrpc']) \|\| $message['jsonrpc'] !== '2.0') {`
`115`	`116`	`throw new JsonRpcErrorException(message: 'Invalid Request: Not a valid JSON-RPC 2.0 message', code: JsonRpcErrorCode::INVALID_REQUEST);`
`116`	`117`	`}`
`117`	`118`