Improve generic 'Method not found' message for better debuggability

alantriesagain · claude · alantriesagain · commit 537d9655f25f · 2026-01-11T21:49:40.000-03:00
Co-Authored-By: Claude &lt;noreply@anthropic.com&gt;
diff --git a/packages/core/src/shared/protocol.ts b/packages/core/src/shared/protocol.ts
@@ -689,7 +689,7 @@ export abstract class Protocol<SendRequestT extends Request, SendNotificationT e
                 id: request.id,
                 error: {
                     code: ErrorCode.MethodNotFound,
-                    message: 'Method not found'
+                    message: `Method '${request.method}' not found`
                 }
             };
 

Original file line number	Diff line number	Diff line change
`@@ -689,7 +689,7 @@ export abstract class Protocol<SendRequestT extends Request, SendNotificationT e`
`689`	`689`	`id: request.id,`
`690`	`690`	`error: {`
`691`	`691`	`code: ErrorCode.MethodNotFound,`
`692`		`- message: 'Method not found'`
	`692`	+ message: `Method '${request.method}' not found`
`693`	`693`	`}`
`694`	`694`	`};`
`695`	`695`