From 926a9d8a69bb4847d37668fd0a9949db0e215aac Mon Sep 17 00:00:00 2001
From: Aakash Bakhle <48802744+aakashb95@users.noreply.github.com>
Date: Tue, 30 Jun 2026 15:14:03 +0530
Subject: [PATCH] fix(captain): default temperature to 0.5 and remove UI
 control (#14879)

# Pull Request Template

## Description

- Default temperature to 0.5 and remove UI control
- No migrations needed for existing accounts, their current settings are
preserved

## Type of change

- [x] New feature (non-breaking change which adds functionality)

## How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide
instructions so we can reproduce. Please also list any relevant details
for your test configuration.

locally and spec

## Checklist:

- [x] My code follows the style guidelines of this project
- [x] I have performed a self-review of my code
- [x] I have commented on my code, particularly in hard-to-understand
areas
- [ ] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [x] I have added tests that prove my fix is effective or that my
feature works
- [x] New and existing unit tests pass locally with my changes
- [x] Any dependent changes have been merged and published in downstream
modules
---
 .../settings/AssistantSystemSettingsForm.vue  | 23 -------------------
 .../i18n/locale/en/integrations.json          |  4 ----
 enterprise/app/helpers/captain/chat_helper.rb |  2 +-
 enterprise/app/models/concerns/agentable.rb   |  4 +++-
 .../models/concerns/agentable_spec.rb         |  4 ++--
 .../llm/assistant_chat_service_spec.rb        | 18 +++++++++++++++
 6 files changed, 24 insertions(+), 31 deletions(-)

diff --git a/app/javascript/dashboard/components-next/captain/pageComponents/assistant/settings/AssistantSystemSettingsForm.vue b/app/javascript/dashboard/components-next/captain/pageComponents/assistant/settings/AssistantSystemSettingsForm.vue
index ee20fded5..c689065fb 100644
--- a/app/javascript/dashboard/components-next/captain/pageComponents/assistant/settings/AssistantSystemSettingsForm.vue
+++ b/app/javascript/dashboard/components-next/captain/pageComponents/assistant/settings/AssistantSystemSettingsForm.vue
@@ -29,7 +29,6 @@ const initialState = {
   handoffMessage: '',
   resolutionMessage: '',
   instructions: '',
-  temperature: 1,
 };
 
 const state = reactive({ ...initialState });
@@ -57,7 +56,6 @@ const updateStateFromAssistant = assistant => {
   state.handoffMessage = config.handoff_message;
   state.resolutionMessage = config.resolution_message;
   state.instructions = config.instructions;
-  state.temperature = config.temperature || 1;
 };
 
 const handleSystemMessagesUpdate = async () => {
@@ -80,7 +78,6 @@ const handleSystemMessagesUpdate = async () => {
       ...props.assistant.config,
       handoff_message: state.handoffMessage,
       resolution_message: state.resolutionMessage,
-      temperature: state.temperature || 1,
     },
   };
 
@@ -131,26 +128,6 @@ watch(
       class="z-0"
     />
 
-    <div class="flex flex-col gap-2">
-      <label class="text-sm font-medium text-n-slate-12">
-        {{ t('CAPTAIN.ASSISTANTS.FORM.TEMPERATURE.LABEL') }}
-      </label>
-      <div class="flex items-center gap-4">
-        <input
-          v-model="state.temperature"
-          type="range"
-          min="0"
-          max="1"
-          step="0.1"
-          class="w-full"
-        />
-        <span class="text-sm text-n-slate-12">{{ state.temperature }}</span>
-      </div>
-      <p class="text-sm text-n-slate-11 italic">
-        {{ t('CAPTAIN.ASSISTANTS.FORM.TEMPERATURE.DESCRIPTION') }}
-      </p>
-    </div>
-
     <div>
       <Button
         :label="t('CAPTAIN.ASSISTANTS.FORM.UPDATE')"
diff --git a/app/javascript/dashboard/i18n/locale/en/integrations.json b/app/javascript/dashboard/i18n/locale/en/integrations.json
index 79f881b84..3c13f0d51 100644
--- a/app/javascript/dashboard/i18n/locale/en/integrations.json
+++ b/app/javascript/dashboard/i18n/locale/en/integrations.json
@@ -494,10 +494,6 @@
           "PLACEHOLDER": "Enter assistant name",
           "ERROR": "The name is required"
         },
-        "TEMPERATURE": {
-          "LABEL": "Response Temperature",
-          "DESCRIPTION": "Adjust how creative or restrictive the assistant's responses should be. Lower values produce more focused and deterministic responses, while higher values allow for more creative and varied outputs."
-        },
         "DESCRIPTION": {
           "LABEL": "Description",
           "PLACEHOLDER": "Enter assistant description",
diff --git a/enterprise/app/helpers/captain/chat_helper.rb b/enterprise/app/helpers/captain/chat_helper.rb
index 8b8ab0f60..130473867 100644
--- a/enterprise/app/helpers/captain/chat_helper.rb
+++ b/enterprise/app/helpers/captain/chat_helper.rb
@@ -96,7 +96,7 @@ module Captain::ChatHelper
   end
 
   def temperature
-    @assistant&.config&.[]('temperature').to_f || 1
+    @assistant&.config&.[]('temperature').presence&.to_f || 0.5
   end
 
   def resolved_account_id
diff --git a/enterprise/app/models/concerns/agentable.rb b/enterprise/app/models/concerns/agentable.rb
index 1f3319ca4..b5a6cd1b9 100644
--- a/enterprise/app/models/concerns/agentable.rb
+++ b/enterprise/app/models/concerns/agentable.rb
@@ -1,13 +1,15 @@
 module Concerns::Agentable
   extend ActiveSupport::Concern
 
+  DEFAULT_TEMPERATURE = 0.5
+
   def agent
     Agents::Agent.new(
       name: agent_name,
       instructions: ->(context) { agent_instructions(context) },
       tools: agent_tools,
       model: agent_model,
-      temperature: temperature.to_f || 0.7,
+      temperature: temperature.presence&.to_f || DEFAULT_TEMPERATURE,
       response_schema: agent_response_schema
     )
   end
diff --git a/spec/enterprise/models/concerns/agentable_spec.rb b/spec/enterprise/models/concerns/agentable_spec.rb
index 996b92d45..d179393c9 100644
--- a/spec/enterprise/models/concerns/agentable_spec.rb
+++ b/spec/enterprise/models/concerns/agentable_spec.rb
@@ -56,11 +56,11 @@ RSpec.describe Concerns::Agentable do
       dummy_instance.agent
     end
 
-    it 'converts nil temperature to 0.0' do
+    it 'uses default temperature when temperature is nil' do
       dummy_instance.temperature = nil
 
       expect(Agents::Agent).to receive(:new).with(
-        hash_including(temperature: 0.0)
+        hash_including(temperature: 0.5)
       )
 
       dummy_instance.agent
diff --git a/spec/enterprise/services/captain/llm/assistant_chat_service_spec.rb b/spec/enterprise/services/captain/llm/assistant_chat_service_spec.rb
index 805e55d9e..f5dbe569c 100644
--- a/spec/enterprise/services/captain/llm/assistant_chat_service_spec.rb
+++ b/spec/enterprise/services/captain/llm/assistant_chat_service_spec.rb
@@ -39,6 +39,24 @@ RSpec.describe Captain::Llm::AssistantChatService do
       service.generate_response(message_history: [{ role: 'user', content: 'Hello' }])
     end
 
+    it 'uses default temperature when assistant config does not include temperature' do
+      expect(mock_chat).to receive(:with_temperature).with(0.5).and_return(mock_chat)
+      allow(mock_chat).to receive(:ask).and_return(mock_response)
+
+      service = described_class.new(assistant: assistant, conversation: conversation)
+      service.generate_response(message_history: [{ role: 'user', content: 'Hello' }])
+    end
+
+    it 'preserves explicit assistant config temperature' do
+      assistant.update!(config: assistant.config.merge('temperature' => 1.0))
+
+      expect(mock_chat).to receive(:with_temperature).with(1.0).and_return(mock_chat)
+      allow(mock_chat).to receive(:ask).and_return(mock_response)
+
+      service = described_class.new(assistant: assistant, conversation: conversation)
+      service.generate_response(message_history: [{ role: 'user', content: 'Hello' }])
+    end
+
     it 'passes channel_type to the agent session instrumentation' do
       service = described_class.new(assistant: assistant, conversation: conversation)