Attempt to fix published version not running

Author: cezaraugusto

programs/cli/commands/dev.ts

@@ -140,14 +140,17 @@ export function registerDevCommand(program: Command, telemetry: any) {
         devOptions.watchSource = true
       }
 
-      // Ensure we load the exact matching develop package version to avoid
-      // runtime mismatches between the CLI and the develop module when used
-      // from different working directories (e.g., examples workspaces).
-      const versionSpec = String(packageJson.version)
-      const {extensionDev} = await requireOrDlx(
-        'extension-develop',
-        versionSpec
-      )
+      // Prefer exact prerelease when available; fall back to compatible major
+      const versionExact = String(packageJson.version)
+      const major = String(packageJson.version).split('.')[0] || '2'
+
+      let extensionDev: any
+      try {
+        ;({extensionDev} = await requireOrDlx('extension-develop', versionExact))
+      } catch {
+        ;({extensionDev} = await requireOrDlx('extension-develop', major))
+      }
+
       for (const vendor of list) {
         const vendorStart = Date.now()
         telemetry.track('cli_vendor_start', {command: 'dev', vendor})

programs/cli/index.ts

@@ -23,6 +23,8 @@ extensionJs
   .option('--no-telemetry', 'disable anonymous telemetry for this run')
   .option('--ai-help', 'show AI-assistant oriented help and tips')
   .addHelpText('after', messages.programUserHelp())
+  .showHelpAfterError(true)
+  .showSuggestionAfterError(true)
 
 registerCreateCommand(extensionJs, telemetry)
 registerDevCommand(extensionJs, telemetry)
@@ -36,4 +38,10 @@ extensionJs.on('option:ai-help', function () {
   process.exit(0)
 })
 
+// Show help when invoked with no args (e.g., `npx extension`)
+if (process.argv.length <= 2) {
+  extensionJs.outputHelp()
+  process.exit(0)
+}
+
 extensionJs.parse()