diff --git a/assets/javascripts/discourse/components/ai-persona-editor.gjs b/assets/javascripts/discourse/components/ai-persona-editor.gjs
index ddb0e32e..4a5fdf1a 100644
--- a/assets/javascripts/discourse/components/ai-persona-editor.gjs
+++ b/assets/javascripts/discourse/components/ai-persona-editor.gjs
@@ -315,6 +315,7 @@ export default class PersonaEditor extends Component {
         <label>{{I18n.t "discourse_ai.ai_persona.max_context_posts"}}</label>
         <Input
           @type="number"
+          lang="en"
           class="ai-persona-editor__max_context_posts"
           @value={{this.editingModel.max_context_posts}}
         />
@@ -329,6 +330,8 @@ export default class PersonaEditor extends Component {
           <Input
             @type="number"
             class="ai-persona-editor__temperature"
+            step="any"
+            lang="en"
             @value={{this.editingModel.temperature}}
             disabled={{this.editingModel.system}}
           />
@@ -343,6 +346,8 @@ export default class PersonaEditor extends Component {
           <label>{{I18n.t "discourse_ai.ai_persona.top_p"}}</label>
           <Input
             @type="number"
+            step="any"
+            lang="en"
             class="ai-persona-editor__top_p"
             @value={{this.editingModel.top_p}}
             disabled={{this.editingModel.system}}
diff --git a/lib/ai_bot/tools/tool.rb b/lib/ai_bot/tools/tool.rb
index 1f1d42dd..9b90edcf 100644
--- a/lib/ai_bot/tools/tool.rb
+++ b/lib/ai_bot/tools/tool.rb
@@ -82,7 +82,7 @@ module DiscourseAi
           request = FinalDestination::HTTP::Get.new(uri)
           request["User-Agent"] = DiscourseAi::AiBot::USER_AGENT
           headers.each { |k, v| request[k] = v }
-          if authenticate_github
+          if authenticate_github && SiteSetting.ai_bot_github_access_token.present?
             request["Authorization"] = "Bearer #{SiteSetting.ai_bot_github_access_token}"
           end