Working folder: pin the default for cloud runs, clear via an empty field

server/index.ts

@@ -993,6 +993,10 @@ async function startTurn(
       // the private bot workspace. A legacy task with an existing provider
       // session deliberately pins to null (the old home-folder behavior),
       // because moving a live session would break resume.
+      // A cloud run happens on the box, where a host folder means nothing:
+      // pin the task to the default so the header chip never shows the
+      // bot's folder for a task that runs elsewhere.
+      if (opts?.runOn === "cloud") store.pinTaskCwd(bot.id, threadId, undefined, { none: true });
       const pinnedCwd =
         privateWorkspace && opts?.runOn !== "cloud"
           ? store.pinTaskCwd(bot.id, threadId, privateWorkspace)

server/store.test.ts

@@ -353,3 +353,19 @@ describe("Store task working folder", () => {
     expect(store.pinTaskCwd(bot.id, bot.threadId)).toBeNull();
   });
 });
+
+describe("Store task working folder — cloud runs", () => {
+  beforeEach(() => {
+    rmSync(DATA_DIR, { recursive: true, force: true });
+  });
+  it("a cloud run pins the default so the bot's host folder never shows for that task", () => {
+    const store = new Store(selection);
+    const bot = store.createBot();
+    store.patchBot(bot.id, { cwd: "/tmp/project-a" });
+    expect(store.pinTaskCwd(bot.id, bot.threadId)).toBe("/tmp/project-a");
+    expect(store.pinTaskCwd(bot.id, bot.threadId, undefined, { none: true })).toBeNull();
+    expect(store.taskByThread(bot.id, bot.threadId)?.cwd).toBeNull();
+    // and it stays pinned even if a host run follows
+    expect(store.pinTaskCwd(bot.id, bot.threadId)).toBeNull();
+  });
+});

server/store.ts

@@ -701,10 +701,17 @@ export class Store {
    * current folder — unless the task already has a session (a thread from
    * before folders existed), which pins to the default so the folder can't
    * move under it. Returns the pinned value: a path, or null for default. */
-  pinTaskCwd(botId: string, threadId: string, fallbackCwd?: string): string | null {
+  pinTaskCwd(botId: string, threadId: string, fallbackCwd?: string, opts: { none?: boolean } = {}): string | null {
     const bot = this.bot(botId);
     const task = bot ? this.taskByThread(botId, threadId) : undefined;
     if (!bot || !task) return null;
+    if (opts.none) {
+      if (task.cwd !== null) {
+        task.cwd = null;
+        this.saveBots();
+      }
+      return null;
+    }
     if (task.cwd === undefined) {
       task.cwd = Object.keys(task.resumeCursors).length === 0 ? (bot.cwd ?? fallbackCwd ?? null) : null;
       this.saveBots();

src/components/SettingsPanel.tsx

@@ -88,7 +88,8 @@ function WorkingFolder({ bot }: { bot: Bot }) {
           className="mt-3 flex items-center gap-2"
           onSubmit={(e) => {
             e.preventDefault();
-            void save(draft ?? bot.cwd ?? "");
+            // an emptied field clears the folder — the server wants null
+            void save((draft ?? bot.cwd ?? "").trim() || null);
           }}
         >
           <input