insighta-cloud · Sep 26, 2026 · Sep 26, 2026 · Sep 26, 2026 · Sep 26, 2026 · Sep 26, 2026
diff --git a/frontend/src/app/app-shell.tsx b/frontend/src/app/app-shell.tsx
@@ -40,7 +40,7 @@ export function AppShell({
 }) {
   const t = locales[locale];
   const [collapsed, setCollapsed] = useState(
-    () => localStorage.getItem(sidebarStorageKey) === "true",
+    () => sessionStorage.getItem(sidebarStorageKey) === "true",
   );
   const pageDescriptions = localeMessages<Record<Page, string>>(
     locale,
@@ -106,7 +106,7 @@ export function AppShell({
   );
   const activeRunLabel = activeRunCount > 99 ? "99+" : String(activeRunCount);
   useEffect(
-    () => localStorage.setItem(sidebarStorageKey, String(collapsed)),
+    () => sessionStorage.setItem(sidebarStorageKey, String(collapsed)),
     [collapsed],
   );
   useEffect(() => {

diff --git a/frontend/src/components/chat-assistant.tsx b/frontend/src/components/chat-assistant.tsx
@@ -4,6 +4,7 @@ import {
   Send,
   Settings,
   SquareTerminal,
+  Trash2,
   X,
 } from "lucide-react";
 import { useEffect, useRef, useState } from "react";
@@ -69,9 +70,16 @@ type ChatAssistantCopy = {
   message: string;
   placeholder: string;
   send: string;
+  clearHistory: string;
+  clearHistoryPrompt: string;
+  cancel: string;
+  confirmClearHistory: string;
 };
 const positionKey = "orbit.chat.position";
 const windowPositionKey = "orbit.chat.window.position";
+const messagesKey = "orbit.chat.messages.v1";
+const openKey = "orbit.chat.open";
+const maxStoredMessages = 100;
 const defaultToolSettings: ToolSettings = {
   workspace_root: "",
   file_read_enabled: true,
@@ -94,7 +102,7 @@ const normalizedToolSettings = (
 });
 
 const initialPosition = (): Position => {
-  const saved = localStorage.getItem(positionKey);
+  const saved = sessionStorage.getItem(positionKey);
   if (saved) {
     try {
       const position = JSON.parse(saved) as Position;
@@ -120,7 +128,7 @@ const initialPosition = (): Position => {
 };
 
 const initialWindowPosition = (): Position | null => {
-  const saved = localStorage.getItem(windowPositionKey);
+  const saved = sessionStorage.getItem(windowPositionKey);
   if (saved) {
     try {
       const position = JSON.parse(saved) as Position;
@@ -133,14 +141,33 @@ const initialWindowPosition = (): Position | null => {
   return null;
 };
 
+const initialOpen = () => sessionStorage.getItem(openKey) === "true";
+
+const initialMessages = (): Message[] => {
+  try {
+    const saved = JSON.parse(sessionStorage.getItem(messagesKey) ?? "[]");
+    if (!Array.isArray(saved)) return [];
+    return saved
+      .filter(
+        (message): message is Message =>
+          message &&
+          (message.role === "user" || message.role === "assistant") &&
+          typeof message.content === "string",
+      )
+      .slice(-maxStoredMessages);
+  } catch {
+    return [];
+  }
+};
+
 export function ChatAssistant() {
   const { sessionId, handleCommand } = useAssistantUiBridge();
   const copy = localeMessages<ChatAssistantCopy>(
     resolveLocale(localStorage.getItem("orbit.locale")),
     "chatAssistant",
   );
-  const [open, setOpen] = useState(false),
-    [messages, setMessages] = useState<Message[]>([]),
+  const [open, setOpen] = useState(initialOpen),
+    [messages, setMessages] = useState<Message[]>(initialMessages),
     [draft, setDraft] = useState(""),
     [sending, setSending] = useState(false),
     [activityPhase, setActivityPhase] = useState<"thinking" | "working">("thinking"),
@@ -157,6 +184,7 @@ export function ChatAssistant() {
     }),
     [terminalMode, setTerminalMode] = useState(false),
     [terminalStarted, setTerminalStarted] = useState(false),
+    [clearConfirmationOpen, setClearConfirmationOpen] = useState(false),
     [toolSettings, setToolSettings] =
       useState<ToolSettings>(defaultToolSettings);
   const drag = useRef<{
@@ -171,6 +199,13 @@ export function ChatAssistant() {
   const messageList = useRef<HTMLDivElement>(null);
   const chatWindow = useRef<HTMLElement>(null);
   const hasUsedTool = useRef(false);
+  const clearHistory = () => {
+    setMessages([]);
+    sessionStorage.removeItem(messagesKey);
+    setClearConfirmationOpen(false);
+  };
+  const appendMessage = (message: Message) =>
+    setMessages((current) => [...current, message].slice(-maxStoredMessages));
   useEffect(() => {
     messageList.current?.scrollTo({ top: messageList.current.scrollHeight });
   }, [messages, sending, activityLines]);
@@ -183,12 +218,23 @@ export function ChatAssistant() {
     return () => window.clearInterval(interval);
   }, [sending]);
   useEffect(() => {
-    localStorage.setItem(positionKey, JSON.stringify(position));
+    sessionStorage.setItem(positionKey, JSON.stringify(position));
   }, [position]);
   useEffect(() => {
     if (windowPosition)
-      localStorage.setItem(windowPositionKey, JSON.stringify(windowPosition));
+      sessionStorage.setItem(windowPositionKey, JSON.stringify(windowPosition));
   }, [windowPosition]);
+  useEffect(() => {
+    sessionStorage.setItem(openKey, String(open));
+  }, [open]);
+  useEffect(() => {
+    try {
+      if (messages.length) sessionStorage.setItem(messagesKey, JSON.stringify(messages));
+      else sessionStorage.removeItem(messagesKey);
+    } catch {
+      // A full or unavailable browser store must not prevent chatting.
+    }
+  }, [messages]);
   useEffect(() => {
     if (open)
       api<ApplicationSettings>("/api/application-settings")
@@ -248,9 +294,14 @@ export function ChatAssistant() {
   const send = async () => {
     const content = draft.trim();
     if (!content || sending) return;
+    if (content.toLowerCase() === "/clear") {
+      setDraft("");
+      setClearConfirmationOpen(true);
+      return;
+    }
     const history = messages.slice(-12);
     setDraft("");
-    setMessages((current) => [...current, { role: "user", content }]);
+    appendMessage({ role: "user", content });
     setSending(true);
     setActivityPhase("thinking");
     setActivityLines([]);
@@ -312,18 +363,12 @@ export function ChatAssistant() {
         if (done) break;
       }
       if (!answer) throw new Error(copy.requestFailed);
-      setMessages((current) => [
-        ...current,
-        { role: "assistant", content: answer },
-      ]);
+      appendMessage({ role: "assistant", content: answer });
     } catch (error) {
-      setMessages((current) => [
-        ...current,
-        {
-          role: "assistant",
-          content: error instanceof Error ? error.message : copy.requestFailed,
-        },
-      ]);
+      appendMessage({
+        role: "assistant",
+        content: error instanceof Error ? error.message : copy.requestFailed,
+      });
     } finally {
       setSending(false);
     }
@@ -447,6 +492,15 @@ export function ChatAssistant() {
             >
               <Settings size={17} />
             </button>
+            <button
+              className="ghost"
+              aria-label={copy.clearHistory}
+              disabled={!messages.length || sending}
+              onPointerDown={(event) => event.stopPropagation()}
+              onClick={() => setClearConfirmationOpen(true)}
+            >
+              <Trash2 size={17} />
+            </button>
             <button
               className="ghost"
               aria-label={copy.collapse}
@@ -463,6 +517,26 @@ export function ChatAssistant() {
             >
               {toolSummary}
             </div>
+            {clearConfirmationOpen && (
+              <section
+                className="chat-clear-confirmation"
+                role="alertdialog"
+                aria-label={copy.clearHistory}
+              >
+                <div>
+                  <strong>{copy.clearHistory}</strong>
+                  <p>{copy.clearHistoryPrompt}</p>
+                  <footer>
+                    <button className="ghost" onClick={() => setClearConfirmationOpen(false)}>
+                      {copy.cancel}
+                    </button>
+                    <button className="reject" onClick={clearHistory}>
+                      {copy.confirmClearHistory}
+                    </button>
+                  </footer>
+                </div>
+              </section>
+            )}
             <div className="chat-messages" ref={messageList}>
               {messages.length === 0 && (
                 <p className="chat-empty">{copy.empty}</p>

diff --git a/frontend/src/features/assets/page.tsx b/frontend/src/features/assets/page.tsx
@@ -969,7 +969,7 @@ function PromptTemplateEditor({
       ? template.versions
       : [{ version: template.version, content: template.content }];
   const [draft, setDraft] = useState(() => {
-      const saved = localStorage.getItem(draftKey);
+      const saved = sessionStorage.getItem(draftKey);
       return saved ? (JSON.parse(saved) as PromptTemplate) : { ...template };
     }),
     [selectedVersion, setSelectedVersion] = useState(draft.version),
@@ -982,8 +982,8 @@ function PromptTemplateEditor({
     draft.content !== selectedContent ||
     draft.id !== template.id;
   useEffect(() => {
-    if (dirty) localStorage.setItem(draftKey, JSON.stringify(draft));
-    else localStorage.removeItem(draftKey);
+    if (dirty) sessionStorage.setItem(draftKey, JSON.stringify(draft));
+    else sessionStorage.removeItem(draftKey);
   }, [draft, dirty, draftKey]);
   const close = () => {
     if (dirty) setPendingAction({ type: "close" });
@@ -994,7 +994,7 @@ function PromptTemplateEditor({
     if (selected) {
       setSelectedVersion(version);
       setDraft({ ...template, content: selected.content, version });
-      localStorage.removeItem(draftKey);
+      sessionStorage.removeItem(draftKey);
     }
   };
   const selectVersion = (version: number) => {
@@ -1003,7 +1003,7 @@ function PromptTemplateEditor({
   };
   const discard = () => {
     if (!pendingAction) return;
-    localStorage.removeItem(draftKey);
+    sessionStorage.removeItem(draftKey);
     if (pendingAction.type === "close") onClose();
     else applyVersion(pendingAction.version);
     setPendingAction(null);
@@ -1017,7 +1017,7 @@ function PromptTemplateEditor({
       { id: draft.id, name: draft.name, content: draft.content },
     )
       .then(async () => {
-        localStorage.removeItem(draftKey);
+        sessionStorage.removeItem(draftKey);
         await onSaved();
         onClose();
       })

diff --git a/frontend/src/locales/languages/en.json b/frontend/src/locales/languages/en.json
@@ -100,7 +100,11 @@
       "usingUiInteract": "Interacting with the UI",
       "message": "Message",
       "placeholder": "Message Orbit…",
-      "send": "Send message"
+      "send": "Send message",
+      "clearHistory": "Clear chat history",
+      "clearHistoryPrompt": "Delete every message stored in this browser? This cannot be undone.",
+      "cancel": "Cancel",
+      "confirmClearHistory": "Clear history"
     },
     "appMeta": {
       "title": "OpenOrbit",

diff --git a/frontend/src/locales/languages/ja.json b/frontend/src/locales/languages/ja.json
@@ -94,7 +94,11 @@
       "usingUiInteract": "UI を操作中",
       "message": "メッセージ",
       "placeholder": "Orbit にメッセージ…",
-      "send": "メッセージを送信"
+      "send": "メッセージを送信",
+      "clearHistory": "チャット履歴を削除",
+      "clearHistoryPrompt": "このブラウザーに保存されたすべての会話を削除しますか？この操作は元に戻せません。",
+      "cancel": "キャンセル",
+      "confirmClearHistory": "履歴を削除"
     },
     "appMeta": {
       "title": "OpenOrbit",

diff --git a/frontend/src/locales/languages/ko.json b/frontend/src/locales/languages/ko.json
@@ -99,7 +99,11 @@
       "usingUiInteract": "UI 조작 중",
       "message": "메시지",
       "placeholder": "Orbit에 메시지 보내기…",
-      "send": "메시지 전송"
+      "send": "메시지 전송",
+      "clearHistory": "대화 기록 삭제",
+      "clearHistoryPrompt": "이 브라우저에 저장된 모든 대화를 삭제할까요? 이 작업은 되돌릴 수 없습니다.",
+      "cancel": "취소",
+      "confirmClearHistory": "기록 삭제"
     },
     "appMeta": {
       "title": "OpenOrbit",

diff --git a/frontend/src/services/build-selection.ts b/frontend/src/services/build-selection.ts
@@ -10,7 +10,7 @@ export function preferredBuildId(
   fallback: string,
 ): string {
   try {
-    const saved = localStorage.getItem(storageKey(scope));
+    const saved = sessionStorage.getItem(storageKey(scope));
     return saved && builds.some((build) => build.id === saved) ? saved : fallback;
   } catch {
     return fallback;
@@ -19,15 +19,15 @@ export function preferredBuildId(
 
 export function savePreferredBuildId(scope: "improvements", buildId: string) {
   try {
-    if (buildId) localStorage.setItem(storageKey(scope), buildId);
+    if (buildId) sessionStorage.setItem(storageKey(scope), buildId);
   } catch {
     // Storage can be unavailable in private or restricted browser contexts.
   }
 }
 
 export function preferredRangeHours(scope: "improvements", fallback: number): number {
   try {
-    const saved = Number(localStorage.getItem(rangeStorageKey(scope)));
+    const saved = Number(sessionStorage.getItem(rangeStorageKey(scope)));
     return validRangeHours.has(saved) ? saved : fallback;
   } catch {
     return fallback;
@@ -36,7 +36,7 @@ export function preferredRangeHours(scope: "improvements", fallback: number): nu
 
 export function savePreferredRangeHours(scope: "improvements", hours: number) {
   try {
-    if (validRangeHours.has(hours)) localStorage.setItem(rangeStorageKey(scope), String(hours));
+    if (validRangeHours.has(hours)) sessionStorage.setItem(rangeStorageKey(scope), String(hours));
   } catch {
     // Storage can be unavailable in private or restricted browser contexts.
   }

diff --git a/frontend/src/theme-overrides.css b/frontend/src/theme-overrides.css