From 8f273b583dbc447425f189674264b8e67b895b68 Mon Sep 17 00:00:00 2001
From: Bohdan Triapitsyn <artmore@protonmail.com>
Date: Wed, 29 Jul 2026 20:12:31 +0300
Subject: [PATCH] fix: hide system prompt optimization in VS Code

Removes the system prompt optimization section from the Behavior page in VS Code runtime.
Updates settings search so the hidden option is not shown as available in VS Code.
---
 .../sections/behavior/BehaviorPage.tsx        | 54 ++++++++++---------
 packages/ui/src/lib/settings/search.ts        |  1 +
 2 files changed, 30 insertions(+), 25 deletions(-)

diff --git a/packages/ui/src/components/sections/behavior/BehaviorPage.tsx b/packages/ui/src/components/sections/behavior/BehaviorPage.tsx
index a4f48e0f..d33fefc6 100644
--- a/packages/ui/src/components/sections/behavior/BehaviorPage.tsx
+++ b/packages/ui/src/components/sections/behavior/BehaviorPage.tsx
@@ -4,6 +4,7 @@ import { Textarea } from '@/components/ui/textarea';
 import { toast } from '@/components/ui';
 import { useI18n, type I18nKey } from '@/lib/i18n';
 import { reportSettingsSaveState } from '@/lib/persistence';
+import { useIsVSCodeRuntime } from '@/hooks/useRuntimeAPIs';
 import {
   Select,
   SelectContent,
@@ -101,6 +102,7 @@ const saveBehaviorSetting = async (settings: Partial<DesktopSettings>, fallbackE
 
 export const BehaviorPage: React.FC = () => {
   const { t } = useI18n();
+  const isVSCode = useIsVSCodeRuntime();
   const [prompt, setPrompt] = React.useState('');
   const [optimizeSystemPrompt, setOptimizeSystemPrompt] = React.useState(false);
   const [responseStyleEnabled, setResponseStyleEnabled] = React.useState(DEFAULT_BEHAVIOR_SETTINGS.responseStyleEnabled);
@@ -291,32 +293,34 @@ export const BehaviorPage: React.FC = () => {
       description={t('settings.page.behavior.description')}
       showSaveStatus
     >
-      <SettingsSection
-        title={t('settings.behavior.page.section.systemPromptOptimization')}
-        divider={false}
-        settingsItem="behavior.system-prompt-optimization"
-        contentClassName="space-y-3"
-      >
-        <SettingsCheckboxRow
-          checked={optimizeSystemPrompt}
-          onChange={setOptimizeSystemPrompt}
-          disabled={isLoading || isApplyingPromptOptimization}
-          label={t('settings.behavior.page.systemPromptOptimization.enable')}
-          ariaLabel={t('settings.behavior.page.systemPromptOptimization.enableAria')}
-          info={t('settings.behavior.page.systemPromptOptimization.info')}
-        />
-        <Button
-          type="button"
-          size="xs"
-          onClick={() => void handleSavePromptOptimization()}
-          disabled={isLoading || isApplyingPromptOptimization || !isPromptOptimizationDirty}
-          className="!font-normal"
+      {!isVSCode && (
+        <SettingsSection
+          title={t('settings.behavior.page.section.systemPromptOptimization')}
+          divider={false}
+          settingsItem="behavior.system-prompt-optimization"
+          contentClassName="space-y-3"
         >
-          {isApplyingPromptOptimization
-            ? t('settings.common.actions.saving')
-            : t('settings.openchamber.opencodeCli.actions.saveAndReload')}
-        </Button>
-      </SettingsSection>
+          <SettingsCheckboxRow
+            checked={optimizeSystemPrompt}
+            onChange={setOptimizeSystemPrompt}
+            disabled={isLoading || isApplyingPromptOptimization}
+            label={t('settings.behavior.page.systemPromptOptimization.enable')}
+            ariaLabel={t('settings.behavior.page.systemPromptOptimization.enableAria')}
+            info={t('settings.behavior.page.systemPromptOptimization.info')}
+          />
+          <Button
+            type="button"
+            size="xs"
+            onClick={() => void handleSavePromptOptimization()}
+            disabled={isLoading || isApplyingPromptOptimization || !isPromptOptimizationDirty}
+            className="!font-normal"
+          >
+            {isApplyingPromptOptimization
+              ? t('settings.common.actions.saving')
+              : t('settings.openchamber.opencodeCli.actions.saveAndReload')}
+          </Button>
+        </SettingsSection>
+      )}
 
       <SettingsSection
         title={t('settings.behavior.page.section.systemPrompt')}
diff --git a/packages/ui/src/lib/settings/search.ts b/packages/ui/src/lib/settings/search.ts
index 00648cf5..34a5f415 100644
--- a/packages/ui/src/lib/settings/search.ts
+++ b/packages/ui/src/lib/settings/search.ts
@@ -562,6 +562,7 @@ const SETTINGS_SEARCH_ITEMS: readonly SettingsSearchItem[] = [
     titleKey: 'settings.behavior.page.section.systemPromptOptimization',
     descriptionKey: 'settings.behavior.page.systemPromptOptimization.info',
     keywords: ['system prompt', 'tokens', 'context', 'optimize', 'minimal'],
+    isAvailable: (ctx) => !ctx.isVSCode,
   },
   {
     id: 'behavior.system-prompt',