diff --git a/dist-bun/mcporter-macos-arm64-v0.6.2.tar.gz b/dist-bun/mcporter-macos-arm64-v0.6.2.tar.gz
index f58c8b4..d37d621 100644
Binary files a/dist-bun/mcporter-macos-arm64-v0.6.2.tar.gz and b/dist-bun/mcporter-macos-arm64-v0.6.2.tar.gz differ
diff --git a/src/cli/config/add.ts b/src/cli/config/add.ts
index 5b8a46b..dd78266 100644
--- a/src/cli/config/add.ts
+++ b/src/cli/config/add.ts
@@ -121,6 +121,7 @@ function extractAddFlags(args: string[]): AddFlags {
         args.splice(index, 2);
         continue;
       case '--arg':
+      case '--args':
         flags.args.push(requireValue(args, index, token));
         args.splice(index, 2);
         continue;
diff --git a/src/cli/output-utils.ts b/src/cli/output-utils.ts
index 5398365..ddf8826 100644
--- a/src/cli/output-utils.ts
+++ b/src/cli/output-utils.ts
@@ -107,7 +107,16 @@ function resolveRenderableOutput<T>(
 
 function emitRenderableOutput(renderable: RenderableOutput): void {
   if (renderable.kind === 'json') {
-    if (!attemptPrintJson(renderable.value)) {
+    // For json format, try JSON.stringify first to ensure valid JSON output
+    if (attemptPrintJson(renderable.value)) {
+      return;
+    }
+    // Fallback: try JSON.stringify on raw value before inspect
+    try {
+      console.log(JSON.stringify(renderable.value, null, 2));
+      return;
+    } catch {
+      // If that also fails, use inspect as last resort
       printRaw(renderable.value);
     }
     return;