diff --git a/gai-frontend/lib/chat/chat.dart b/gai-frontend/lib/chat/chat.dart
index 6e17a0d90..50238cd9d 100644
--- a/gai-frontend/lib/chat/chat.dart
+++ b/gai-frontend/lib/chat/chat.dart
@@ -2,6 +2,7 @@ import 'package:orchid/api/orchid_eth/chains.dart';
 import 'package:orchid/api/orchid_eth/orchid_account.dart';
 import 'package:orchid/api/orchid_eth/orchid_account_detail.dart';
 import 'package:orchid/api/orchid_keys.dart';
+import 'package:orchid/api/orchid_user_config/orchid_user_param.dart';
 import 'package:orchid/chat/api/user_preferences_chat.dart';
 import 'package:orchid/chat/model.dart';
 import 'package:orchid/chat/provider_connection.dart';
@@ -67,6 +68,7 @@ class _ChatViewState extends State<ChatView> {
   // AuthTokenMethod _authTokenMethod = AuthTokenMethod.manual;
   String? _authToken;
   String? _inferenceUrl;
+  String? _scriptURLParam;
 
   @override
   void initState() {
@@ -89,20 +91,39 @@ class _ChatViewState extends State<ChatView> {
       log('Error initializing from params: $e, $stack');
     }
 
+    // Initialize the scripting extension mechanism
+    _initScripting();
+  }
+
+  void _initScripting() {
     // final script = UserPreferencesScripts().userScript.get();
     // log('User script on start: $script');
 
-    // Initialize the scripting extension mechanism
     ChatScripting.init(
+      // If a script URL is provided, it will be loaded.
       // url: 'lib/extensions/filter_example.js',
+      url: _scriptURLParam,
+      // If debugMode is true, the script will be re-loaded before each invocation
       // debugMode: true,
-      script: UserPreferencesScripts().userScript.get(),
-      // Not: script overrides url
+
+      // Allow a provided script url param to override the stored script
+      script: _scriptURLParam == null
+          ? UserPreferencesScripts().userScript.get()
+          : null,
+
       providerManager: _providerManager,
       modelManager: _modelManager,
       getUserSelectedModels: () => _userSelectedModels,
       chatHistory: _chatHistory,
       addChatMessageToUI: _addChatMessage,
+      onScriptError: (error) {
+        _addMessage(ChatMessageSource.internal,
+            'User Script error: ${error.truncate(128)}');
+        _addMessage(ChatMessageSource.system, 'User Script error (see logs).');
+      },
+      onScriptLoaded: (msg) {
+        _addMessage(ChatMessageSource.system, msg);
+      },
     );
   }
 
@@ -164,23 +185,17 @@ class _ChatViewState extends State<ChatView> {
 
   // Init from user parameters (for web)
   void _initFromParams() {
-    Map<String, String> params = Uri.base.queryParameters;
-    try {
-      _funder = EthereumAddress.from(params['funder'] ?? '');
-    } catch (e) {
-      _funder = null;
-    }
-    try {
-      _signerKey = BigInt.parse(params['signer'] ?? '');
-    } catch (e) {
-      _signerKey = null;
-    }
+    final params = OrchidUserParams();
+    _funder = params.getEthereumAddress('funder');
+    _signerKey = params.getBigInt('signer');
     _accountChanged();
 
-    String? provider = params['provider'];
+    String? provider = params.get('provider');
     if (provider != null) {
       _providerManager.setUserProvider(provider);
     }
+
+    _scriptURLParam = params.getURL('script');
   }
 
   void providerConnected([name = '']) {
@@ -342,8 +357,7 @@ class _ChatViewState extends State<ChatView> {
     // FocusManager.instance.primaryFocus?.unfocus(); // ?
 
     // If we have a script selected allow it to handle the prompt
-    if (ChatScripting.enabled &&
-        (UserPreferencesScripts().userScriptEnabled.get() ?? false)) {
+    if (ChatScripting.enabled) {
       ChatScripting.instance.sendUserPrompt(msg, _userSelectedModels);
     } else {
       _sendUserPromptDefaultBehavior(msg);
diff --git a/gai-frontend/lib/chat/scripting/chat_scripting.dart b/gai-frontend/lib/chat/scripting/chat_scripting.dart
index b4f3606da..260061991 100644
--- a/gai-frontend/lib/chat/scripting/chat_scripting.dart
+++ b/gai-frontend/lib/chat/scripting/chat_scripting.dart
@@ -1,3 +1,4 @@
+import 'package:orchid/chat/api/user_preferences_chat.dart';
 import 'package:orchid/chat/chat_history.dart';
 import 'package:orchid/chat/chat_message.dart';
 import 'package:orchid/chat/model.dart';
@@ -22,15 +23,16 @@ class ChatScripting {
     return _instance!;
   }
 
-  static bool get enabled => _instance != null;
-
   // Scripting State
+  String? url;
   String? script;
   late ProviderManager providerManager;
   late ModelManager modelManager;
   late List<ModelInfo> Function() getUserSelectedModels;
   late ChatHistory chatHistory;
   late void Function(ChatMessage) addChatMessageToUI;
+  late void Function(String) onScriptError;
+  late void Function(String) onScriptLoaded;
   late bool debugMode;
 
   static Future<void> init({
@@ -47,6 +49,8 @@ class ChatScripting {
     required ModelManager modelManager,
     required List<ModelInfo> Function() getUserSelectedModels,
     required Function(ChatMessage) addChatMessageToUI,
+    required void Function(String) onScriptError,
+    required void Function(String) onScriptLoaded,
   }) async {
     if (_instance != null) {
       throw Exception("ChatScripting already initialized!");
@@ -59,27 +63,55 @@ class ChatScripting {
     instance.modelManager = modelManager;
     instance.getUserSelectedModels = getUserSelectedModels;
     instance.addChatMessageToUI = addChatMessageToUI;
+    instance.onScriptError = onScriptError;
+    instance.onScriptLoaded = onScriptLoaded;
 
     if (url != null) {
-      // Install persistent callback functions
-      final script = await instance.loadScriptFromURL(url);
-      instance.setScript(script);
+      instance.setURL(url);
     }
-
     if (script != null) {
       instance.setScript(script);
     }
   }
 
+  static bool get enabled {
+    return ChatScripting._instance != null
+        && (instance.url != null // assume enabled when URL provided as param
+            || (userPrefEnabled && instance.script != null));
+  }
+
+  static bool get userPrefEnabled {
+    return (UserPreferencesScripts().userScriptEnabled.get() ?? false);
+  }
+
+  Future<void> setURL(String newURL) async {
+    url = newURL;
+    final String script;
+    try {
+      script = await instance.loadScriptFromURL(url!);
+      onScriptLoaded("Script loaded from URL: $url");
+      setScript(script);
+    } catch (e) {
+      log("Failed to load script from URL: $e");
+      onScriptError(e.toString());
+    }
+  }
+
   // Set the script into the environment
   void setScript(String newScript) {
-    // init the global bindings once, when we have a script
-    if (script == null) {
-      addGlobalBindings();
+    try {
+      // init the global bindings once, when we have a script
+      if (script == null) {
+        addGlobalBindings();
+      }
+      script = newScript;
+      // Do one setup and evaluation of the script now
+      evalExtensionScript();
+    } catch (e, stack) {
+      log("Failed to eval script: $e");
+      log(stack.toString());
+      onScriptError(e.toString());
     }
-    script = newScript;
-    // Do one setup and evaluation of the script now
-    evalExtensionScript();
   }
 
   Future<String> loadScriptFromURL(String url) async {
@@ -95,7 +127,8 @@ class ChatScripting {
     // If the result is HTML we have failed
     if (response.headers['content-type']!.contains('text/html')) {
       throw Exception(
-          "Failed to load script from $url: HTML response: ${response.body.truncate(64)}");
+          "Failed to load script from $url: HTML response: ${response.body
+              .truncate(64)}");
     }
 
     // log("Loaded script: $script");
@@ -110,6 +143,7 @@ class ChatScripting {
         throw Exception("No script to evaluate.");
       }
       evaluateJS(script!); // We could get a result back async here if needed
+      onScriptLoaded("Script installed.");
     } catch (e, stack) {
       log("Failed to evaluate script: $e");
       log(stack.toString());
@@ -130,6 +164,10 @@ class ChatScripting {
 
     // If debug mode evaluate the script before each usage
     if (debugMode) {
+      // reload the URL in debug mode
+      if (url != null) {
+        setURL(url!); // reload the script from the URL
+      }
       evalExtensionScript();
     }
 
@@ -157,8 +195,8 @@ class ChatScripting {
 
   // Implementation of sendMessagesToModel callback function invoked from JS
   // Send a list of ChatMessage to a model for inference and return a promise of ChatMessageJS
-  JSPromise sendMessagesToModelJSImpl(
-      JSArray messagesJS, String modelId, int? maxTokens) {
+  JSPromise sendMessagesToModelJSImpl(JSArray messagesJS, String modelId,
+      int? maxTokens) {
     log("dart: Send messages to model called.");
 
     return (() async {
@@ -197,7 +235,7 @@ class ChatScripting {
         .toJS;
   }
 
-  ///
-  /// END: JS callback implementations
-  ///
+///
+/// END: JS callback implementations
+///
 }
diff --git a/gai-frontend/lib/chat/scripting/code_viewer/scripts_menu_item.dart b/gai-frontend/lib/chat/scripting/code_viewer/scripts_menu_item.dart
index 7b432d583..c6e14dde4 100644
--- a/gai-frontend/lib/chat/scripting/code_viewer/scripts_menu_item.dart
+++ b/gai-frontend/lib/chat/scripting/code_viewer/scripts_menu_item.dart
@@ -50,6 +50,7 @@ class ScriptsMenuItem extends StatelessWidget {
     return Column(
       crossAxisAlignment: CrossAxisAlignment.stretch,
       children: [
+
         // show one line of the script
         if (hasScript)
           Container(
diff --git a/gui-orchid/lib/api/orchid_user_config/orchid_user_param.dart b/gui-orchid/lib/api/orchid_user_config/orchid_user_param.dart
index 6b9857124..258629b3e 100644
--- a/gui-orchid/lib/api/orchid_user_config/orchid_user_param.dart
+++ b/gui-orchid/lib/api/orchid_user_config/orchid_user_param.dart
@@ -1,4 +1,5 @@
 import 'dart:ui';
+import 'package:orchid/api/orchid_crypto.dart';
 import 'package:orchid/api/orchid_log.dart';
 import 'package:orchid/util/hex.dart';
 
@@ -43,6 +44,26 @@ class OrchidUserParams {
     }
   }
 
+  String? getURL(String name) {
+    return get(name);
+  }
+
+  EthereumAddress? getEthereumAddress(String name) {
+    try {
+      return EthereumAddress.from(params[name] ?? '');
+    } catch (e) {
+      return null;
+    }
+  }
+
+  BigInt? getBigInt(String name) {
+    try {
+      return BigInt.parse(params[name] ?? '');
+    } catch (e) {
+      return null;
+    }
+  }
+
   bool has(String name) {
     return get(name) != null;
   }