diff --git a/cameleer3-server-core/src/main/java/com/cameleer3/server/core/runtime/AppService.java b/cameleer3-server-core/src/main/java/com/cameleer3/server/core/runtime/AppService.java
index e3e11c9b..49d26e0a 100644
--- a/cameleer3-server-core/src/main/java/com/cameleer3/server/core/runtime/AppService.java
+++ b/cameleer3-server-core/src/main/java/com/cameleer3/server/core/runtime/AppService.java
@@ -71,7 +71,17 @@ public class AppService {
         String checksum = HexFormat.of().formatHex(digest.digest());
         UUID versionId = versionRepo.create(appId, nextVersion, jarFile.toString(), checksum, filename, size);
 
-        log.info("Uploaded JAR for app {}: version={}, size={}, sha256={}", appId, nextVersion, size, checksum);
+        // Detect runtime type from the saved JAR
+        RuntimeDetector.DetectionResult detection = RuntimeDetector.detect(jarFile);
+        if (detection.runtimeType() != null) {
+            versionRepo.updateDetectedRuntime(versionId, detection.runtimeType().toConfigValue(), detection.mainClass());
+            log.info("Uploaded JAR for app {}: version={}, size={}, sha256={}, detected={}",
+                    appId, nextVersion, size, checksum, detection.runtimeType().toConfigValue());
+        } else {
+            log.info("Uploaded JAR for app {}: version={}, size={}, sha256={}, detected=unknown",
+                    appId, nextVersion, size, checksum);
+        }
+
         return versionRepo.findById(versionId).orElseThrow();
     }