diff --git a/apps/mobile/src/screens/thread/ThreadDetailHeader.tsx b/apps/mobile/src/screens/thread/ThreadDetailHeader.tsx
index 75ebdbe3f1..604a047631 100644
--- a/apps/mobile/src/screens/thread/ThreadDetailHeader.tsx
+++ b/apps/mobile/src/screens/thread/ThreadDetailHeader.tsx
@@ -1,13 +1,13 @@
 import { Pressable, View } from "react-native";
 import { useTheme } from "@/theme";
-import { cn, Icon, Spinner, Text } from "@/ui";
+import { cn, Icon, Text } from "@/ui";
 import { PanelToggleButton } from "../panel/PanelToggleButton";
 import type { ThreadStatusPill } from "./thread-detail-header-model";
 
 /**
  * The thread screen's native header pieces. There is one header only: the
  * title (tap to rename) with a status subtitle while the thread needs
- * attention or works, and two buttons on the right — the workspace panel
+ * attention, has an error, or waits on a host, and two buttons on the right — the workspace panel
  * and the "…" menu. Everything else the old two-layer header carried
  * (environment line, child roll-up, git action) lives in the menu sheet.
  */
@@ -21,13 +21,18 @@ export interface ThreadHeaderTitleProps {
   onPressTitle: (() => void) | null;
 }
 
-/** Subtitle shown under the title; idle / archived threads show none. */
+/**
+ * Subtitle shown under the title. Idle threads show none, and working threads
+ * show none either: the timeline's working indicator already carries that.
+ */
 export function headerSubtitle(
   statusPill: ThreadStatusPill,
   childPillLabel: ThreadHeaderTitleProps["childPillLabel"],
 ): string | null {
   const parts: string[] = [];
-  if (statusPill.tone !== "idle") parts.push(statusPill.label);
+  if (statusPill.tone !== "idle" && statusPill.tone !== "working") {
+    parts.push(statusPill.label);
+  }
   if (childPillLabel) parts.push(childPillLabel);
   return parts.length > 0 ? parts.join(" · ") : null;
 }
@@ -68,21 +73,14 @@ export function ThreadHeaderTitle({
         {title}
       </Text>
       {subtitle ? (
-        <View
-          className="flex-row items-center gap-1"
+        <Text
+          variant="caption"
+          numberOfLines={1}
+          style={{ color: subtitleColor }}
           testID="thread-status-pill"
         >
-          {statusPill.spinning ? (
-            <Spinner size="small" color={subtitleColor} />
-          ) : null}
-          <Text
-            variant="caption"
-            numberOfLines={1}
-            style={{ color: subtitleColor }}
-          >
-            {subtitle}
-          </Text>
-        </View>
+          {subtitle}
+        </Text>
       ) : null}
     </Pressable>
   );
diff --git a/apps/mobile/src/screens/thread/thread-detail-header-model.ts b/apps/mobile/src/screens/thread/thread-detail-header-model.ts
index 087cce4e39..add23552f0 100644
--- a/apps/mobile/src/screens/thread/thread-detail-header-model.ts
+++ b/apps/mobile/src/screens/thread/thread-detail-header-model.ts
@@ -10,7 +10,8 @@ import { assertNever } from "@bb/thread-view";
 /**
  * Pure header facts for the thread detail screen: the status pill (from the
  * client-core runtime display status, with the thread's own status and
- * pending input layered on) and the one-line environment summary.
+ * pending input layered on) and the one-line environment summary. The header
+ * hides "working" tones; the timeline's working indicator already shows them.
  */
 
 export type ThreadStatusPillTone =
@@ -23,8 +24,6 @@ export type ThreadStatusPillTone =
 export interface ThreadStatusPill {
   label: string;
   tone: ThreadStatusPillTone;
-  /** Shows a spinner glyph instead of a static one. */
-  spinning: boolean;
 }
 
 export function describeThreadStatusPill({
@@ -39,33 +38,33 @@ export function describeThreadStatusPill({
   archived: boolean;
 }): ThreadStatusPill {
   if (hasPendingInteraction) {
-    return { label: "Needs input", tone: "attention", spinning: false };
+    return { label: "Needs input", tone: "attention" };
   }
   if (threadStatus === "stopping") {
-    return { label: "Stopping", tone: "working", spinning: true };
+    return { label: "Stopping", tone: "working" };
   }
   switch (runtimeDisplayStatus) {
     case "active":
-      return { label: "Working", tone: "working", spinning: true };
+      return { label: "Working", tone: "working" };
     case "provisioning":
-      return { label: "Provisioning", tone: "working", spinning: true };
+      return { label: "Provisioning", tone: "working" };
     case "starting":
-      return { label: "Starting", tone: "working", spinning: true };
+      return { label: "Starting", tone: "working" };
     case "stopping":
-      return { label: "Stopping", tone: "working", spinning: true };
+      return { label: "Stopping", tone: "working" };
     case "host-reconnecting":
-      return { label: "Reconnecting", tone: "working", spinning: true };
+      return { label: "Reconnecting", tone: "working" };
     case "waiting-for-host":
-      return { label: "Waiting for host", tone: "muted", spinning: false };
+      return { label: "Waiting for host", tone: "muted" };
     case "error":
-      return { label: "Error", tone: "error", spinning: false };
+      return { label: "Error", tone: "error" };
     case "idle":
       if (threadStatus === "error") {
-        return { label: "Error", tone: "error", spinning: false };
+        return { label: "Error", tone: "error" };
       }
       return archived
-        ? { label: "Archived", tone: "muted", spinning: false }
-        : { label: "Idle", tone: "idle", spinning: false };
+        ? { label: "Archived", tone: "muted" }
+        : { label: "Idle", tone: "idle" };
     default:
       return assertNever(runtimeDisplayStatus);
   }